./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/sync01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/sync01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC --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 bfadf9642c1a15dc7e36a17b923c507de577ccb8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:25:24,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:25:24,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:25:24,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:25:24,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:25:24,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:25:24,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:25:24,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:25:24,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:25:24,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:25:24,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:25:24,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:25:24,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:25:24,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:25:24,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:25:24,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:25:24,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:25:24,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:25:24,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:25:24,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:25:24,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:25:24,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:25:24,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:25:24,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:25:24,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:25:24,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:25:24,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:25:24,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:25:24,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:25:24,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:25:24,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:25:24,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:25:24,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:25:24,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:25:24,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:25:24,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:25:24,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:25:24,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:25:24,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:25:24,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:25:24,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:25:24,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:25:24,318 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:25:24,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:25:24,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:25:24,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:25:24,321 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:25:24,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:25:24,322 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:25:24,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:25:24,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:25:24,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:25:24,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:25:24,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:25:24,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:25:24,330 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:25:24,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:25:24,331 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:25:24,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:25:24,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:25:24,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:25:24,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:25:24,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:25:24,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:25:24,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:25:24,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:25:24,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:25:24,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:25:24,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:25:24,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:25:24,334 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_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfadf9642c1a15dc7e36a17b923c507de577ccb8 [2021-10-11 00:25:24,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:25:24,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:25:24,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:25:24,656 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:25:24,656 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:25:24,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/pthread/sync01.i [2021-10-11 00:25:24,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/data/8ed8da8be/99e93e9765dd4940ae03a192be3d4503/FLAGa3e894417 [2021-10-11 00:25:25,419 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:25:25,420 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/sv-benchmarks/c/pthread/sync01.i [2021-10-11 00:25:25,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/data/8ed8da8be/99e93e9765dd4940ae03a192be3d4503/FLAGa3e894417 [2021-10-11 00:25:25,690 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/data/8ed8da8be/99e93e9765dd4940ae03a192be3d4503 [2021-10-11 00:25:25,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:25:25,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:25:25,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:25,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:25:25,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:25:25,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:25" (1/1) ... [2021-10-11 00:25:25,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34284414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:25, skipping insertion in model container [2021-10-11 00:25:25,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:25" (1/1) ... [2021-10-11 00:25:25,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:25:25,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:25:26,271 WARN L226 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_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2021-10-11 00:25:26,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:26,289 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:25:26,329 WARN L226 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_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2021-10-11 00:25:26,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:26,472 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:25:26,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26 WrapperNode [2021-10-11 00:25:26,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:26,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:26,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:25:26,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:25:26,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26" (1/1) ... [2021-10-11 00:25:26,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26" (1/1) ... [2021-10-11 00:25:26,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:26,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:25:26,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:25:26,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:25:26,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26" (1/1) ... [2021-10-11 00:25:26,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26" (1/1) ... [2021-10-11 00:25:26,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26" (1/1) ... [2021-10-11 00:25:26,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26" (1/1) ... [2021-10-11 00:25:26,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26" (1/1) ... [2021-10-11 00:25:26,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26" (1/1) ... [2021-10-11 00:25:26,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26" (1/1) ... [2021-10-11 00:25:26,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:25:26,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:25:26,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:25:26,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:25:26,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:25:26,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:25:26,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:25:26,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:25:26,654 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-11 00:25:26,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-11 00:25:26,654 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-11 00:25:26,654 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-11 00:25:26,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:25:26,655 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-11 00:25:26,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:25:26,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:25:26,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:25:26,657 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 00:25:27,221 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:25:27,221 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 00:25:27,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:27 BoogieIcfgContainer [2021-10-11 00:25:27,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:25:27,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:25:27,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:25:27,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:25:27,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:25:25" (1/3) ... [2021-10-11 00:25:27,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9a051c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:25:27, skipping insertion in model container [2021-10-11 00:25:27,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:26" (2/3) ... [2021-10-11 00:25:27,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9a051c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:25:27, skipping insertion in model container [2021-10-11 00:25:27,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:27" (3/3) ... [2021-10-11 00:25:27,231 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2021-10-11 00:25:27,246 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 00:25:27,246 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:25:27,249 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:25:27,250 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 00:25:27,278 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,278 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,279 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,279 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,279 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,279 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,283 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,283 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,283 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,283 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,284 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,284 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,285 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,285 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,285 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,286 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,286 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,286 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,286 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,286 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,287 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,287 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,287 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,287 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,288 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,288 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,288 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,288 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,289 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,289 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,289 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,289 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,289 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,289 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,290 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,290 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,292 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,292 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,292 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,293 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,293 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,293 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,293 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,297 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,298 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,298 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,299 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 00:25:27,305 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-11 00:25:27,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:25:27,338 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:25:27,338 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:25:27,338 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:25:27,338 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:25:27,338 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:25:27,339 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:25:27,339 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:25:27,339 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:25:27,351 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 00:25:27,353 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 96 transitions, 214 flow [2021-10-11 00:25:27,356 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 96 transitions, 214 flow [2021-10-11 00:25:27,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 96 transitions, 214 flow [2021-10-11 00:25:27,408 INFO L129 PetriNetUnfolder]: 6/96 cut-off events. [2021-10-11 00:25:27,409 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-11 00:25:27,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 96 events. 6/96 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2021-10-11 00:25:27,416 INFO L116 LiptonReduction]: Number of co-enabled transitions 840 [2021-10-11 00:25:30,555 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-10-11 00:25:31,174 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-10-11 00:25:31,385 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-10-11 00:25:31,490 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-10-11 00:25:31,743 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-10-11 00:25:32,012 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-10-11 00:25:32,285 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-10-11 00:25:32,507 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-10-11 00:25:33,508 WARN L197 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 171 [2021-10-11 00:25:33,937 WARN L197 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-10-11 00:25:34,914 WARN L197 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 171 [2021-10-11 00:25:35,317 WARN L197 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-10-11 00:25:35,324 INFO L131 LiptonReduction]: Checked pairs total: 3852 [2021-10-11 00:25:35,325 INFO L133 LiptonReduction]: Total number of compositions: 73 [2021-10-11 00:25:35,333 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 34 transitions, 90 flow [2021-10-11 00:25:35,350 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2021-10-11 00:25:35,352 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2021-10-11 00:25:35,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:25:35,362 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:35,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:35,363 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:35,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:35,369 INFO L82 PathProgramCache]: Analyzing trace with hash -308904977, now seen corresponding path program 1 times [2021-10-11 00:25:35,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:35,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583309748] [2021-10-11 00:25:35,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:35,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:35,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583309748] [2021-10-11 00:25:35,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:35,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:25:35,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026629961] [2021-10-11 00:25:35,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:25:35,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:35,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:25:35,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:25:35,687 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 2 states. [2021-10-11 00:25:35,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:35,724 INFO L93 Difference]: Finished difference Result 198 states and 455 transitions. [2021-10-11 00:25:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:25:35,726 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2021-10-11 00:25:35,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:35,746 INFO L225 Difference]: With dead ends: 198 [2021-10-11 00:25:35,746 INFO L226 Difference]: Without dead ends: 197 [2021-10-11 00:25:35,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:25:35,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-11 00:25:35,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-10-11 00:25:35,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2021-10-11 00:25:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 454 transitions. [2021-10-11 00:25:35,797 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 454 transitions. Word has length 15 [2021-10-11 00:25:35,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:35,797 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 454 transitions. [2021-10-11 00:25:35,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:25:35,798 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 454 transitions. [2021-10-11 00:25:35,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-11 00:25:35,801 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:35,801 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] [2021-10-11 00:25:35,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:25:35,802 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:35,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:35,802 INFO L82 PathProgramCache]: Analyzing trace with hash 206914780, now seen corresponding path program 1 times [2021-10-11 00:25:35,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:35,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014604797] [2021-10-11 00:25:35,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:35,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:35,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014604797] [2021-10-11 00:25:35,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:35,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:25:35,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991794965] [2021-10-11 00:25:35,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:35,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:35,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:35,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:35,911 INFO L87 Difference]: Start difference. First operand 197 states and 454 transitions. Second operand 3 states. [2021-10-11 00:25:35,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:35,946 INFO L93 Difference]: Finished difference Result 107 states and 223 transitions. [2021-10-11 00:25:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:35,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2021-10-11 00:25:35,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:35,951 INFO L225 Difference]: With dead ends: 107 [2021-10-11 00:25:35,951 INFO L226 Difference]: Without dead ends: 107 [2021-10-11 00:25:35,952 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 [2021-10-11 00:25:35,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-11 00:25:35,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-10-11 00:25:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-10-11 00:25:35,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 223 transitions. [2021-10-11 00:25:35,965 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 223 transitions. Word has length 21 [2021-10-11 00:25:35,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:35,966 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 223 transitions. [2021-10-11 00:25:35,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:35,969 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 223 transitions. [2021-10-11 00:25:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-11 00:25:35,972 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:35,972 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] [2021-10-11 00:25:35,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:25:35,973 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:35,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:35,973 INFO L82 PathProgramCache]: Analyzing trace with hash 657978938, now seen corresponding path program 2 times [2021-10-11 00:25:35,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:35,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2413237] [2021-10-11 00:25:35,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:36,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:36,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2413237] [2021-10-11 00:25:36,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:36,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:25:36,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471740644] [2021-10-11 00:25:36,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:25:36,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:36,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:25:36,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:25:36,053 INFO L87 Difference]: Start difference. First operand 107 states and 223 transitions. Second operand 3 states. [2021-10-11 00:25:36,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:36,081 INFO L93 Difference]: Finished difference Result 80 states and 137 transitions. [2021-10-11 00:25:36,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:25:36,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2021-10-11 00:25:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:36,085 INFO L225 Difference]: With dead ends: 80 [2021-10-11 00:25:36,085 INFO L226 Difference]: Without dead ends: 80 [2021-10-11 00:25:36,085 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 [2021-10-11 00:25:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-11 00:25:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-11 00:25:36,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2021-10-11 00:25:36,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 137 transitions. [2021-10-11 00:25:36,099 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 137 transitions. Word has length 21 [2021-10-11 00:25:36,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:36,099 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 137 transitions. [2021-10-11 00:25:36,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:25:36,100 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 137 transitions. [2021-10-11 00:25:36,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-11 00:25:36,101 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:36,101 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] [2021-10-11 00:25:36,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:25:36,101 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:36,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:36,102 INFO L82 PathProgramCache]: Analyzing trace with hash -688315250, now seen corresponding path program 1 times [2021-10-11 00:25:36,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:36,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451589197] [2021-10-11 00:25:36,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:36,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:36,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451589197] [2021-10-11 00:25:36,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:36,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:25:36,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152235960] [2021-10-11 00:25:36,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:25:36,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:36,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:25:36,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:25:36,195 INFO L87 Difference]: Start difference. First operand 80 states and 137 transitions. Second operand 7 states. [2021-10-11 00:25:36,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:36,322 INFO L93 Difference]: Finished difference Result 80 states and 136 transitions. [2021-10-11 00:25:36,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:25:36,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2021-10-11 00:25:36,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:36,324 INFO L225 Difference]: With dead ends: 80 [2021-10-11 00:25:36,324 INFO L226 Difference]: Without dead ends: 56 [2021-10-11 00:25:36,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:25:36,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-11 00:25:36,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-10-11 00:25:36,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-10-11 00:25:36,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 88 transitions. [2021-10-11 00:25:36,330 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 88 transitions. Word has length 21 [2021-10-11 00:25:36,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:36,330 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 88 transitions. [2021-10-11 00:25:36,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:25:36,331 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 88 transitions. [2021-10-11 00:25:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-11 00:25:36,331 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:25:36,332 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] [2021-10-11 00:25:36,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:25:36,332 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:25:36,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:36,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1906534828, now seen corresponding path program 3 times [2021-10-11 00:25:36,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:36,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833128410] [2021-10-11 00:25:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:36,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:36,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833128410] [2021-10-11 00:25:36,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:36,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:25:36,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211335783] [2021-10-11 00:25:36,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:25:36,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:36,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:25:36,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:25:36,480 INFO L87 Difference]: Start difference. First operand 56 states and 88 transitions. Second operand 7 states. [2021-10-11 00:25:36,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:36,553 INFO L93 Difference]: Finished difference Result 53 states and 82 transitions. [2021-10-11 00:25:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:25:36,553 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2021-10-11 00:25:36,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:25:36,554 INFO L225 Difference]: With dead ends: 53 [2021-10-11 00:25:36,555 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:25:36,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:25:36,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:25:36,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:25:36,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:25:36,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:25:36,557 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-10-11 00:25:36,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:25:36,557 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:25:36,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:25:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:25:36,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:25:36,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:25:36,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:25:36 BasicIcfg [2021-10-11 00:25:36,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:25:36,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:25:36,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:25:36,562 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:25:36,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:27" (3/4) ... [2021-10-11 00:25:36,566 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:25:36,573 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-11 00:25:36,573 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-11 00:25:36,578 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-11 00:25:36,578 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:25:36,578 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:25:36,579 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:25:36,620 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a09cfa8-7fed-4f88-bcb2-a4b32758dccf/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:25:36,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:25:36,622 INFO L168 Benchmark]: Toolchain (without parser) took 10926.56 ms. Allocated memory was 98.6 MB in the beginning and 255.9 MB in the end (delta: 157.3 MB). Free memory was 64.3 MB in the beginning and 207.3 MB in the end (delta: -143.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:36,622 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 54.6 MB in the beginning and 54.5 MB in the end (delta: 78.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:36,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.30 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 64.1 MB in the beginning and 75.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:36,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.30 ms. Allocated memory is still 144.7 MB. Free memory was 75.5 MB in the beginning and 73.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:36,624 INFO L168 Benchmark]: Boogie Preprocessor took 30.29 ms. Allocated memory is still 144.7 MB. Free memory was 73.4 MB in the beginning and 71.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:36,625 INFO L168 Benchmark]: RCFGBuilder took 669.68 ms. Allocated memory is still 144.7 MB. Free memory was 71.3 MB in the beginning and 113.3 MB in the end (delta: -42.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:36,625 INFO L168 Benchmark]: TraceAbstraction took 9336.31 ms. Allocated memory was 144.7 MB in the beginning and 255.9 MB in the end (delta: 111.1 MB). Free memory was 113.3 MB in the beginning and 209.4 MB in the end (delta: -96.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:36,626 INFO L168 Benchmark]: Witness Printer took 59.14 ms. Allocated memory is still 255.9 MB. Free memory was 209.4 MB in the beginning and 207.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:36,629 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 54.6 MB in the beginning and 54.5 MB in the end (delta: 78.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 776.30 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 64.1 MB in the beginning and 75.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.30 ms. Allocated memory is still 144.7 MB. Free memory was 75.5 MB in the beginning and 73.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.29 ms. Allocated memory is still 144.7 MB. Free memory was 73.4 MB in the beginning and 71.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 669.68 ms. Allocated memory is still 144.7 MB. Free memory was 71.3 MB in the beginning and 113.3 MB in the end (delta: -42.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9336.31 ms. Allocated memory was 144.7 MB in the beginning and 255.9 MB in the end (delta: 111.1 MB). Free memory was 113.3 MB in the beginning and 209.4 MB in the end (delta: -96.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Witness Printer took 59.14 ms. Allocated memory is still 255.9 MB. Free memory was 209.4 MB in the beginning and 207.3 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 590 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 21 SemBasedMoverChecksPositive, 41 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 166 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.9s, 96 PlacesBefore, 35 PlacesAfterwards, 96 TransitionsBefore, 34 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 73 TotalNumberOfCompositions, 3852 MoverChecksTotal - PositiveResult [Line: 966]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.0s, HoareTripleCheckerStatistics: 132 SDtfs, 97 SDslu, 131 SDs, 0 SdLazy, 97 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 5416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...