./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer --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 740b07d8f7e077f103517b1a935019a0d1d4c771 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:03:33,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:03:33,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:03:33,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:03:33,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:03:33,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:03:33,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:03:33,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:03:33,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:03:33,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:03:33,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:03:33,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:03:33,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:03:33,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:03:33,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:03:33,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:03:33,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:03:33,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:03:33,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:03:33,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:03:33,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:03:33,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:03:33,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:03:33,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:03:33,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:03:33,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:03:33,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:03:33,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:03:33,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:03:33,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:03:33,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:03:33,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:03:33,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:03:33,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:03:33,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:03:33,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:03:33,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:03:33,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:03:33,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:03:33,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:03:33,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:03:33,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:03:33,513 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:03:33,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:03:33,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:03:33,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:03:33,516 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:03:33,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:03:33,516 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:03:33,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:03:33,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:03:33,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:03:33,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:03:33,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:03:33,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:03:33,518 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:03:33,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:03:33,518 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:03:33,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:03:33,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:03:33,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:03:33,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:03:33,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:03:33,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:03:33,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:03:33,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:03:33,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:03:33,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:03:33,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:03:33,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:03:33,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:03:33,521 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-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 740b07d8f7e077f103517b1a935019a0d1d4c771 [2020-11-28 03:03:33,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:03:33,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:03:33,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:03:33,836 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:03:33,837 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:03:33,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2020-11-28 03:03:33,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/data/af374d345/0497bdf55b764ad39969cf666237ed67/FLAG52ad8f631 [2020-11-28 03:03:34,566 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:03:34,573 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2020-11-28 03:03:34,599 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/data/af374d345/0497bdf55b764ad39969cf666237ed67/FLAG52ad8f631 [2020-11-28 03:03:34,823 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/data/af374d345/0497bdf55b764ad39969cf666237ed67 [2020-11-28 03:03:34,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:03:34,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:03:34,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:34,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:03:34,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:03:34,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:34" (1/1) ... [2020-11-28 03:03:34,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a64af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:34, skipping insertion in model container [2020-11-28 03:03:34,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:34" (1/1) ... [2020-11-28 03:03:34,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:03:34,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:03:35,171 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-28 03:03:35,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:35,450 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:03:35,486 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-11-28 03:03:35,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:35,643 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:03:35,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35 WrapperNode [2020-11-28 03:03:35,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:35,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:35,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:03:35,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:03:35,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:35,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:03:35,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:03:35,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:03:35,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... [2020-11-28 03:03:35,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:03:35,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:03:35,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:03:35,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:03:35,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:03:35,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:03:35,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:03:35,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-28 03:03:35,897 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2020-11-28 03:03:35,897 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2020-11-28 03:03:35,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:03:35,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:03:35,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:03:35,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-28 03:03:35,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:03:35,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:03:35,899 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2020-11-28 03:03:35,899 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2020-11-28 03:03:35,901 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-28 03:03:36,588 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:03:36,588 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:03:36,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:36 BoogieIcfgContainer [2020-11-28 03:03:36,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:03:36,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:03:36,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:03:36,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:03:36,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:03:34" (1/3) ... [2020-11-28 03:03:36,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3ab02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:36, skipping insertion in model container [2020-11-28 03:03:36,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:35" (2/3) ... [2020-11-28 03:03:36,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3ab02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:03:36, skipping insertion in model container [2020-11-28 03:03:36,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:36" (3/3) ... [2020-11-28 03:03:36,601 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2020-11-28 03:03:36,614 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-28 03:03:36,614 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:03:36,620 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:03:36,621 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-28 03:03:36,669 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,669 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,669 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,670 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,670 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,670 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,670 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,671 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,671 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,671 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,671 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,672 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,672 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,672 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,673 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,673 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,673 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,673 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,674 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,675 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,675 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,676 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,676 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,678 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,678 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,678 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,679 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,679 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,679 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,679 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,680 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,680 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,681 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,681 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,682 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,682 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,682 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,682 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,683 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,683 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,683 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,684 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,684 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,684 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,684 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,685 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,685 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,685 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,686 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,686 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,687 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,687 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,688 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,688 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,688 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,688 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,696 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,697 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,701 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,702 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,702 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,702 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,702 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,703 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,716 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,716 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,716 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,717 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,717 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,717 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,717 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,718 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,718 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,720 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,721 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,726 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,727 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,727 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,727 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,727 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,727 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,729 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,730 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,730 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,730 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,730 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,731 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,731 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,731 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,731 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,731 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,732 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:03:36,752 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2020-11-28 03:03:36,766 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-11-28 03:03:36,804 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:03:36,804 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:03:36,804 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:03:36,804 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:03:36,805 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:03:36,805 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:03:36,805 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:03:36,805 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:03:36,820 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-28 03:03:36,822 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 116 transitions, 300 flow [2020-11-28 03:03:36,826 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 116 transitions, 300 flow [2020-11-28 03:03:36,828 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions, 300 flow [2020-11-28 03:03:36,905 INFO L129 PetriNetUnfolder]: 21/150 cut-off events. [2020-11-28 03:03:36,906 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-11-28 03:03:36,913 INFO L80 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 150 events. 21/150 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 372 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 103. Up to 12 conditions per place. [2020-11-28 03:03:36,922 INFO L116 LiptonReduction]: Number of co-enabled transitions 3576 [2020-11-28 03:03:37,039 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-11-28 03:03:38,621 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-11-28 03:03:39,545 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-11-28 03:03:39,684 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-28 03:03:39,842 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-28 03:03:40,637 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-11-28 03:03:40,977 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-28 03:03:41,225 INFO L131 LiptonReduction]: Checked pairs total: 26892 [2020-11-28 03:03:41,225 INFO L133 LiptonReduction]: Total number of compositions: 90 [2020-11-28 03:03:41,230 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 59 transitions, 186 flow [2020-11-28 03:03:41,889 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5381 states. [2020-11-28 03:03:41,891 INFO L276 IsEmpty]: Start isEmpty. Operand 5381 states. [2020-11-28 03:03:41,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 03:03:41,906 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:41,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:41,907 INFO L429 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-28 03:03:41,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:41,914 INFO L82 PathProgramCache]: Analyzing trace with hash 396347534, now seen corresponding path program 1 times [2020-11-28 03:03:41,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:41,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290765595] [2020-11-28 03:03:41,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:42,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290765595] [2020-11-28 03:03:42,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:42,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:42,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609105664] [2020-11-28 03:03:42,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:03:42,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:42,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:03:42,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:42,360 INFO L87 Difference]: Start difference. First operand 5381 states. Second operand 5 states. [2020-11-28 03:03:42,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:42,949 INFO L93 Difference]: Finished difference Result 12590 states and 42232 transitions. [2020-11-28 03:03:42,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:03:42,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-28 03:03:42,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:43,122 INFO L225 Difference]: With dead ends: 12590 [2020-11-28 03:03:43,122 INFO L226 Difference]: Without dead ends: 9892 [2020-11-28 03:03:43,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:03:43,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9892 states. [2020-11-28 03:03:43,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9892 to 5970. [2020-11-28 03:03:43,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5970 states. [2020-11-28 03:03:43,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5970 states to 5970 states and 20851 transitions. [2020-11-28 03:03:43,794 INFO L78 Accepts]: Start accepts. Automaton has 5970 states and 20851 transitions. Word has length 9 [2020-11-28 03:03:43,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:43,795 INFO L481 AbstractCegarLoop]: Abstraction has 5970 states and 20851 transitions. [2020-11-28 03:03:43,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:03:43,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5970 states and 20851 transitions. [2020-11-28 03:03:43,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:03:43,809 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:43,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:43,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:03:43,810 INFO L429 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-28 03:03:43,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:43,814 INFO L82 PathProgramCache]: Analyzing trace with hash -629863298, now seen corresponding path program 1 times [2020-11-28 03:03:43,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:43,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133884852] [2020-11-28 03:03:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:43,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:43,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133884852] [2020-11-28 03:03:43,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:43,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:03:43,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409610848] [2020-11-28 03:03:43,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:03:43,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:43,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:03:43,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:03:43,889 INFO L87 Difference]: Start difference. First operand 5970 states and 20851 transitions. Second operand 3 states. [2020-11-28 03:03:43,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:44,000 INFO L93 Difference]: Finished difference Result 5110 states and 15907 transitions. [2020-11-28 03:03:44,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:03:44,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-28 03:03:44,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:44,079 INFO L225 Difference]: With dead ends: 5110 [2020-11-28 03:03:44,083 INFO L226 Difference]: Without dead ends: 5078 [2020-11-28 03:03:44,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:03:44,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5078 states. [2020-11-28 03:03:44,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 5078. [2020-11-28 03:03:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2020-11-28 03:03:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 15825 transitions. [2020-11-28 03:03:44,427 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 15825 transitions. Word has length 11 [2020-11-28 03:03:44,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:44,428 INFO L481 AbstractCegarLoop]: Abstraction has 5078 states and 15825 transitions. [2020-11-28 03:03:44,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:03:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 15825 transitions. [2020-11-28 03:03:44,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:03:44,430 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:44,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:44,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:03:44,431 INFO L429 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-28 03:03:44,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:44,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1243088368, now seen corresponding path program 2 times [2020-11-28 03:03:44,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:44,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494355771] [2020-11-28 03:03:44,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:44,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494355771] [2020-11-28 03:03:44,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:44,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:03:44,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015893650] [2020-11-28 03:03:44,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:03:44,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:44,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:03:44,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:03:44,534 INFO L87 Difference]: Start difference. First operand 5078 states and 15825 transitions. Second operand 4 states. [2020-11-28 03:03:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:44,628 INFO L93 Difference]: Finished difference Result 3610 states and 9112 transitions. [2020-11-28 03:03:44,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:03:44,632 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 03:03:44,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:44,646 INFO L225 Difference]: With dead ends: 3610 [2020-11-28 03:03:44,646 INFO L226 Difference]: Without dead ends: 3480 [2020-11-28 03:03:44,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:03:44,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2020-11-28 03:03:44,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 2892. [2020-11-28 03:03:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2892 states. [2020-11-28 03:03:44,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 7509 transitions. [2020-11-28 03:03:44,774 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 7509 transitions. Word has length 11 [2020-11-28 03:03:44,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:44,782 INFO L481 AbstractCegarLoop]: Abstraction has 2892 states and 7509 transitions. [2020-11-28 03:03:44,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:03:44,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 7509 transitions. [2020-11-28 03:03:44,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:03:44,784 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:44,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:44,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:03:44,785 INFO L429 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-28 03:03:44,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:44,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1742739460, now seen corresponding path program 1 times [2020-11-28 03:03:44,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:44,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182689257] [2020-11-28 03:03:44,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:44,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182689257] [2020-11-28 03:03:44,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:44,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:44,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074874002] [2020-11-28 03:03:44,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:03:44,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:44,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:03:44,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:44,915 INFO L87 Difference]: Start difference. First operand 2892 states and 7509 transitions. Second operand 5 states. [2020-11-28 03:03:45,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:45,216 INFO L93 Difference]: Finished difference Result 3951 states and 9968 transitions. [2020-11-28 03:03:45,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:03:45,217 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-28 03:03:45,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:45,229 INFO L225 Difference]: With dead ends: 3951 [2020-11-28 03:03:45,229 INFO L226 Difference]: Without dead ends: 3343 [2020-11-28 03:03:45,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:03:45,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2020-11-28 03:03:45,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 2611. [2020-11-28 03:03:45,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2611 states. [2020-11-28 03:03:45,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 6739 transitions. [2020-11-28 03:03:45,342 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 6739 transitions. Word has length 13 [2020-11-28 03:03:45,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:45,343 INFO L481 AbstractCegarLoop]: Abstraction has 2611 states and 6739 transitions. [2020-11-28 03:03:45,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:03:45,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 6739 transitions. [2020-11-28 03:03:45,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:03:45,345 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:45,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:45,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:03:45,345 INFO L429 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-28 03:03:45,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:45,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1595771696, now seen corresponding path program 1 times [2020-11-28 03:03:45,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:45,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578521662] [2020-11-28 03:03:45,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:45,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578521662] [2020-11-28 03:03:45,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:45,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:45,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962674809] [2020-11-28 03:03:45,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:03:45,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:45,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:03:45,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:45,466 INFO L87 Difference]: Start difference. First operand 2611 states and 6739 transitions. Second operand 5 states. [2020-11-28 03:03:45,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:45,742 INFO L93 Difference]: Finished difference Result 3368 states and 8509 transitions. [2020-11-28 03:03:45,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:03:45,743 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-28 03:03:45,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:45,754 INFO L225 Difference]: With dead ends: 3368 [2020-11-28 03:03:45,754 INFO L226 Difference]: Without dead ends: 3221 [2020-11-28 03:03:45,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:03:45,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3221 states. [2020-11-28 03:03:45,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3221 to 2336. [2020-11-28 03:03:45,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2336 states. [2020-11-28 03:03:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 5994 transitions. [2020-11-28 03:03:45,853 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 5994 transitions. Word has length 16 [2020-11-28 03:03:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:45,854 INFO L481 AbstractCegarLoop]: Abstraction has 2336 states and 5994 transitions. [2020-11-28 03:03:45,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:03:45,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 5994 transitions. [2020-11-28 03:03:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:03:45,855 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:45,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:45,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:03:45,856 INFO L429 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-28 03:03:45,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:45,856 INFO L82 PathProgramCache]: Analyzing trace with hash -2061616655, now seen corresponding path program 1 times [2020-11-28 03:03:45,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:45,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986588519] [2020-11-28 03:03:45,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:45,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:45,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986588519] [2020-11-28 03:03:45,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:45,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:45,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230517187] [2020-11-28 03:03:45,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:03:45,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:45,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:03:45,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:45,973 INFO L87 Difference]: Start difference. First operand 2336 states and 5994 transitions. Second operand 5 states. [2020-11-28 03:03:46,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:46,188 INFO L93 Difference]: Finished difference Result 2975 states and 7530 transitions. [2020-11-28 03:03:46,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:03:46,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-28 03:03:46,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:46,199 INFO L225 Difference]: With dead ends: 2975 [2020-11-28 03:03:46,199 INFO L226 Difference]: Without dead ends: 2697 [2020-11-28 03:03:46,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:03:46,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2020-11-28 03:03:46,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 1918. [2020-11-28 03:03:46,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1918 states. [2020-11-28 03:03:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 4913 transitions. [2020-11-28 03:03:46,292 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 4913 transitions. Word has length 16 [2020-11-28 03:03:46,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:46,294 INFO L481 AbstractCegarLoop]: Abstraction has 1918 states and 4913 transitions. [2020-11-28 03:03:46,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:03:46,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 4913 transitions. [2020-11-28 03:03:46,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:03:46,301 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:46,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:46,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:03:46,301 INFO L429 AbstractCegarLoop]: === Iteration 7 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-28 03:03:46,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:46,302 INFO L82 PathProgramCache]: Analyzing trace with hash -797921632, now seen corresponding path program 1 times [2020-11-28 03:03:46,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:46,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859736182] [2020-11-28 03:03:46,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:46,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:46,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859736182] [2020-11-28 03:03:46,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:46,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:46,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401779732] [2020-11-28 03:03:46,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:03:46,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:46,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:03:46,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:46,399 INFO L87 Difference]: Start difference. First operand 1918 states and 4913 transitions. Second operand 5 states. [2020-11-28 03:03:46,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:46,462 INFO L93 Difference]: Finished difference Result 2310 states and 5767 transitions. [2020-11-28 03:03:46,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:03:46,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-28 03:03:46,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:46,470 INFO L225 Difference]: With dead ends: 2310 [2020-11-28 03:03:46,470 INFO L226 Difference]: Without dead ends: 2030 [2020-11-28 03:03:46,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:46,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2020-11-28 03:03:46,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1854. [2020-11-28 03:03:46,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2020-11-28 03:03:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 4763 transitions. [2020-11-28 03:03:46,551 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 4763 transitions. Word has length 21 [2020-11-28 03:03:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:46,552 INFO L481 AbstractCegarLoop]: Abstraction has 1854 states and 4763 transitions. [2020-11-28 03:03:46,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:03:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 4763 transitions. [2020-11-28 03:03:46,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:03:46,555 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:46,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:46,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:03:46,556 INFO L429 AbstractCegarLoop]: === Iteration 8 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-11-28 03:03:46,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:46,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1904003122, now seen corresponding path program 2 times [2020-11-28 03:03:46,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:46,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527411645] [2020-11-28 03:03:46,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:46,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:46,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527411645] [2020-11-28 03:03:46,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:46,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:46,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198960441] [2020-11-28 03:03:46,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:03:46,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:46,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:03:46,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:46,644 INFO L87 Difference]: Start difference. First operand 1854 states and 4763 transitions. Second operand 5 states. [2020-11-28 03:03:46,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:46,685 INFO L93 Difference]: Finished difference Result 726 states and 1649 transitions. [2020-11-28 03:03:46,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:03:46,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-28 03:03:46,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:46,686 INFO L225 Difference]: With dead ends: 726 [2020-11-28 03:03:46,687 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:03:46,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:03:46,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:03:46,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:03:46,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:03:46,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:03:46,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-28 03:03:46,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:46,689 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:03:46,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:03:46,689 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:03:46,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:03:46,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:03:46,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:03:46 BasicIcfg [2020-11-28 03:03:46,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:03:46,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:03:46,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:03:46,695 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:03:46,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:36" (3/4) ... [2020-11-28 03:03:46,699 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:03:46,709 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2020-11-28 03:03:46,710 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2020-11-28 03:03:46,719 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-11-28 03:03:46,719 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:03:46,719 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:03:46,720 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:03:46,785 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ea1a2e91-f503-444f-962d-c2a281f91164/bin/uautomizer/witness.graphml [2020-11-28 03:03:46,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:03:46,787 INFO L168 Benchmark]: Toolchain (without parser) took 11959.65 ms. Allocated memory was 119.5 MB in the beginning and 507.5 MB in the end (delta: 388.0 MB). Free memory was 89.5 MB in the beginning and 308.6 MB in the end (delta: -219.1 MB). Peak memory consumption was 168.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:46,788 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 81.8 MB. Free memory was 40.8 MB in the beginning and 40.8 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:46,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.15 ms. Allocated memory is still 119.5 MB. Free memory was 89.3 MB in the beginning and 76.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:46,789 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.98 ms. Allocated memory is still 119.5 MB. Free memory was 76.0 MB in the beginning and 73.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:46,789 INFO L168 Benchmark]: Boogie Preprocessor took 64.79 ms. Allocated memory is still 119.5 MB. Free memory was 73.9 MB in the beginning and 72.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:46,790 INFO L168 Benchmark]: RCFGBuilder took 809.02 ms. Allocated memory is still 119.5 MB. Free memory was 72.6 MB in the beginning and 78.4 MB in the end (delta: -5.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:46,790 INFO L168 Benchmark]: TraceAbstraction took 10101.09 ms. Allocated memory was 119.5 MB in the beginning and 507.5 MB in the end (delta: 388.0 MB). Free memory was 77.8 MB in the beginning and 310.7 MB in the end (delta: -233.0 MB). Peak memory consumption was 154.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:46,791 INFO L168 Benchmark]: Witness Printer took 91.27 ms. Allocated memory is still 507.5 MB. Free memory was 310.7 MB in the beginning and 308.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:46,794 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 81.8 MB. Free memory was 40.8 MB in the beginning and 40.8 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 812.15 ms. Allocated memory is still 119.5 MB. Free memory was 89.3 MB in the beginning and 76.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.98 ms. Allocated memory is still 119.5 MB. Free memory was 76.0 MB in the beginning and 73.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.79 ms. Allocated memory is still 119.5 MB. Free memory was 73.9 MB in the beginning and 72.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 809.02 ms. Allocated memory is still 119.5 MB. Free memory was 72.6 MB in the beginning and 78.4 MB in the end (delta: -5.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10101.09 ms. Allocated memory was 119.5 MB in the beginning and 507.5 MB in the end (delta: 388.0 MB). Free memory was 77.8 MB in the beginning and 310.7 MB in the end (delta: -233.0 MB). Peak memory consumption was 154.8 MB. Max. memory is 16.1 GB. * Witness Printer took 91.27 ms. Allocated memory is still 507.5 MB. Free memory was 310.7 MB in the beginning and 308.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3004 VarBasedMoverChecksPositive, 158 VarBasedMoverChecksNegative, 104 SemBasedMoverChecksPositive, 54 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 810 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.3s, 113 PlacesBefore, 58 PlacesAfterwards, 116 TransitionsBefore, 59 TransitionsAfterwards, 3576 CoEnabledTransitionPairs, 9 FixpointIterations, 27 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 90 TotalNumberOfCompositions, 26892 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 797 SDtfs, 818 SDslu, 1157 SDs, 0 SdLazy, 386 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5970occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 7082 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 correct! Received shutdown request...