./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD --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 b0a38a3351b7b674959b3b52c41ca700f62698b1532ed517daca17009ceeaadf ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:56:32,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:56:32,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:56:32,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:56:32,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:56:32,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:56:32,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:56:32,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:56:32,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:56:32,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:56:32,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:56:32,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:56:32,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:56:32,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:56:32,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:56:32,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:56:32,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:56:32,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:56:32,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:56:32,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:56:32,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:56:32,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:56:32,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:56:32,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:56:32,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:56:32,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:56:32,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:56:32,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:56:32,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:56:32,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:56:32,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:56:32,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:56:32,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:56:32,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:56:32,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:56:32,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:56:32,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:56:32,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:56:32,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:56:32,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:56:32,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:56:32,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 22:56:32,315 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:56:32,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:56:32,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:56:32,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:56:32,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:56:32,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:56:32,327 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:56:32,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:56:32,328 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:56:32,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:56:32,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:56:32,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:56:32,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:56:32,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:56:32,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:56:32,331 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:56:32,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:56:32,331 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:56:32,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:56:32,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:56:32,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:56:32,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:56:32,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:56:32,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:56:32,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:56:32,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:56:32,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:56:32,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:56:32,335 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 22:56:32,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 22:56:32,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:56:32,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:56:32,337 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_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a38a3351b7b674959b3b52c41ca700f62698b1532ed517daca17009ceeaadf [2021-10-28 22:56:32,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:56:32,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:56:32,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:56:32,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:56:32,743 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:56:32,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2021-10-28 22:56:32,823 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/data/a31fef821/27ab2d38e555460fb945a16819c8b578/FLAG109aeb125 [2021-10-28 22:56:33,430 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:56:33,435 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2021-10-28 22:56:33,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/data/a31fef821/27ab2d38e555460fb945a16819c8b578/FLAG109aeb125 [2021-10-28 22:56:33,696 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/data/a31fef821/27ab2d38e555460fb945a16819c8b578 [2021-10-28 22:56:33,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:56:33,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:56:33,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:56:33,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:56:33,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:56:33,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:56:33" (1/1) ... [2021-10-28 22:56:33,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499e60ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:33, skipping insertion in model container [2021-10-28 22:56:33,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:56:33" (1/1) ... [2021-10-28 22:56:33,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:56:33,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:56:33,955 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[831,844] [2021-10-28 22:56:34,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:56:34,145 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:56:34,158 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[831,844] [2021-10-28 22:56:34,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:56:34,239 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:56:34,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34 WrapperNode [2021-10-28 22:56:34,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:56:34,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:56:34,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:56:34,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:56:34,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34" (1/1) ... [2021-10-28 22:56:34,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34" (1/1) ... [2021-10-28 22:56:34,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:56:34,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:56:34,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:56:34,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:56:34,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34" (1/1) ... [2021-10-28 22:56:34,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34" (1/1) ... [2021-10-28 22:56:34,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34" (1/1) ... [2021-10-28 22:56:34,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34" (1/1) ... [2021-10-28 22:56:34,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34" (1/1) ... [2021-10-28 22:56:34,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34" (1/1) ... [2021-10-28 22:56:34,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34" (1/1) ... [2021-10-28 22:56:34,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:56:34,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:56:34,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:56:34,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:56:34,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34" (1/1) ... [2021-10-28 22:56:34,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:56:34,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:56:34,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:56:34,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:56:34,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:56:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-28 22:56:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:56:34,465 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-28 22:56:34,465 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-28 22:56:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:56:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:56:34,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:56:34,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:56:34,472 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 22:56:34,945 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:56:34,953 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 22:56:34,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:56:34 BoogieIcfgContainer [2021-10-28 22:56:34,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:56:34,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:56:34,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:56:34,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:56:34,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:56:33" (1/3) ... [2021-10-28 22:56:34,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c841883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:56:34, skipping insertion in model container [2021-10-28 22:56:34,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:56:34" (2/3) ... [2021-10-28 22:56:34,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c841883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:56:34, skipping insertion in model container [2021-10-28 22:56:34,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:56:34" (3/3) ... [2021-10-28 22:56:34,965 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2021-10-28 22:56:34,970 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 22:56:34,970 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:56:34,971 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 22:56:34,971 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 22:56:35,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,024 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,024 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,025 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,025 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,028 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,028 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,028 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,029 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,029 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,029 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,030 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,031 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,032 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,033 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,037 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,037 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,038 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,038 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,039 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,039 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,040 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 22:56:35,046 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-28 22:56:35,131 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:56:35,142 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 22:56:35,142 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 22:56:35,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 70 transitions, 145 flow [2021-10-28 22:56:35,215 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-10-28 22:56:35,215 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:56:35,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2021-10-28 22:56:35,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 70 transitions, 145 flow [2021-10-28 22:56:35,223 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 125 flow [2021-10-28 22:56:35,244 INFO L129 PetriNetUnfolder]: 0/60 cut-off events. [2021-10-28 22:56:35,245 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:56:35,245 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:56:35,246 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:35,246 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 22:56:35,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:35,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1413435415, now seen corresponding path program 1 times [2021-10-28 22:56:35,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:35,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419362010] [2021-10-28 22:56:35,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:35,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:35,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:56:35,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:35,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419362010] [2021-10-28 22:56:35,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419362010] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:56:35,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:56:35,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 22:56:35,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959385297] [2021-10-28 22:56:35,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 22:56:35,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:56:35,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:56:35,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:56:35,671 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 70 [2021-10-28 22:56:35,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:35,679 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:56:35,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 70 [2021-10-28 22:56:35,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:56:35,829 INFO L129 PetriNetUnfolder]: 2/98 cut-off events. [2021-10-28 22:56:35,829 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 22:56:35,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 98 events. 2/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 186 event pairs, 0 based on Foata normal form. 3/100 useless extension candidates. Maximal degree in co-relation 84. Up to 8 conditions per place. [2021-10-28 22:56:35,833 INFO L132 encePairwiseOnDemand]: 65/70 looper letters, 5 selfloop transitions, 2 changer transitions 8/69 dead transitions. [2021-10-28 22:56:35,833 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 69 transitions, 171 flow [2021-10-28 22:56:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 22:56:35,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 22:56:35,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 437 transitions. [2021-10-28 22:56:35,854 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918367346938776 [2021-10-28 22:56:35,855 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 437 transitions. [2021-10-28 22:56:35,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 437 transitions. [2021-10-28 22:56:35,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:56:35,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 437 transitions. [2021-10-28 22:56:35,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 62.42857142857143) internal successors, (437), 7 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:35,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:35,885 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:35,888 INFO L186 Difference]: Start difference. First operand has 65 places, 61 transitions, 125 flow. Second operand 7 states and 437 transitions. [2021-10-28 22:56:35,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 69 transitions, 171 flow [2021-10-28 22:56:35,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 69 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 22:56:35,903 INFO L242 Difference]: Finished difference. Result has 75 places, 61 transitions, 140 flow [2021-10-28 22:56:35,906 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=140, PETRI_PLACES=75, PETRI_TRANSITIONS=61} [2021-10-28 22:56:35,907 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 10 predicate places. [2021-10-28 22:56:35,908 INFO L470 AbstractCegarLoop]: Abstraction has has 75 places, 61 transitions, 140 flow [2021-10-28 22:56:35,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:35,912 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:56:35,913 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:35,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:56:35,914 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 22:56:35,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:35,916 INFO L85 PathProgramCache]: Analyzing trace with hash -176665350, now seen corresponding path program 1 times [2021-10-28 22:56:35,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:35,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029081203] [2021-10-28 22:56:35,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:35,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:36,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:56:36,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:36,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029081203] [2021-10-28 22:56:36,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029081203] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:56:36,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:56:36,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:56:36,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140892372] [2021-10-28 22:56:36,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:56:36,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:56:36,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:56:36,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:56:36,159 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 70 [2021-10-28 22:56:36,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 61 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 43.833333333333336) internal successors, (263), 6 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:36,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:56:36,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 70 [2021-10-28 22:56:36,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:56:36,292 INFO L129 PetriNetUnfolder]: 6/89 cut-off events. [2021-10-28 22:56:36,293 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-10-28 22:56:36,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 89 events. 6/89 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 3 based on Foata normal form. 4/93 useless extension candidates. Maximal degree in co-relation 139. Up to 19 conditions per place. [2021-10-28 22:56:36,294 INFO L132 encePairwiseOnDemand]: 64/70 looper letters, 22 selfloop transitions, 6 changer transitions 0/62 dead transitions. [2021-10-28 22:56:36,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 62 transitions, 198 flow [2021-10-28 22:56:36,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 22:56:36,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 22:56:36,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 230 transitions. [2021-10-28 22:56:36,298 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2021-10-28 22:56:36,298 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 230 transitions. [2021-10-28 22:56:36,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 230 transitions. [2021-10-28 22:56:36,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:56:36,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 230 transitions. [2021-10-28 22:56:36,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:36,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:36,303 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:36,303 INFO L186 Difference]: Start difference. First operand has 75 places, 61 transitions, 140 flow. Second operand 5 states and 230 transitions. [2021-10-28 22:56:36,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 62 transitions, 198 flow [2021-10-28 22:56:36,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 62 transitions, 188 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-10-28 22:56:36,307 INFO L242 Difference]: Finished difference. Result has 70 places, 61 transitions, 142 flow [2021-10-28 22:56:36,307 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=142, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2021-10-28 22:56:36,308 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 5 predicate places. [2021-10-28 22:56:36,308 INFO L470 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 142 flow [2021-10-28 22:56:36,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.833333333333336) internal successors, (263), 6 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:36,309 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:56:36,309 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:36,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 22:56:36,310 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 22:56:36,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:36,311 INFO L85 PathProgramCache]: Analyzing trace with hash 919208596, now seen corresponding path program 2 times [2021-10-28 22:56:36,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:36,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44498461] [2021-10-28 22:56:36,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:36,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:56:36,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:36,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44498461] [2021-10-28 22:56:36,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44498461] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:56:36,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:56:36,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 22:56:36,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007642449] [2021-10-28 22:56:36,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 22:56:36,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:56:36,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:56:36,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:56:36,512 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 70 [2021-10-28 22:56:36,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 142 flow. Second operand has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:36,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:56:36,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 70 [2021-10-28 22:56:36,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:56:36,684 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2021-10-28 22:56:36,685 INFO L130 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2021-10-28 22:56:36,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 89 events. 2/89 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 3/92 useless extension candidates. Maximal degree in co-relation 87. Up to 16 conditions per place. [2021-10-28 22:56:36,687 INFO L132 encePairwiseOnDemand]: 63/70 looper letters, 17 selfloop transitions, 8 changer transitions 1/65 dead transitions. [2021-10-28 22:56:36,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 65 transitions, 204 flow [2021-10-28 22:56:36,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:56:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 22:56:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 304 transitions. [2021-10-28 22:56:36,690 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7238095238095238 [2021-10-28 22:56:36,690 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 304 transitions. [2021-10-28 22:56:36,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 304 transitions. [2021-10-28 22:56:36,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:56:36,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 304 transitions. [2021-10-28 22:56:36,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:36,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:36,695 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:36,695 INFO L186 Difference]: Start difference. First operand has 70 places, 61 transitions, 142 flow. Second operand 6 states and 304 transitions. [2021-10-28 22:56:36,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 65 transitions, 204 flow [2021-10-28 22:56:36,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 65 transitions, 196 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 22:56:36,701 INFO L242 Difference]: Finished difference. Result has 73 places, 64 transitions, 166 flow [2021-10-28 22:56:36,701 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2021-10-28 22:56:36,702 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 8 predicate places. [2021-10-28 22:56:36,702 INFO L470 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 166 flow [2021-10-28 22:56:36,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:36,703 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 22:56:36,703 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:56:36,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 22:56:36,704 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 22:56:36,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:56:36,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1350082894, now seen corresponding path program 1 times [2021-10-28 22:56:36,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:56:36,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393753487] [2021-10-28 22:56:36,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:56:36,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:56:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:56:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:56:36,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:56:36,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393753487] [2021-10-28 22:56:36,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393753487] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:56:36,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:56:36,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 22:56:36,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838777058] [2021-10-28 22:56:36,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 22:56:36,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:56:36,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 22:56:36,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:56:36,982 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 70 [2021-10-28 22:56:36,983 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 166 flow. Second operand has 8 states, 8 states have (on average 38.75) internal successors, (310), 8 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:36,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 22:56:36,984 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 70 [2021-10-28 22:56:36,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 22:56:37,135 INFO L129 PetriNetUnfolder]: 1/56 cut-off events. [2021-10-28 22:56:37,135 INFO L130 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2021-10-28 22:56:37,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 56 events. 1/56 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 1 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2021-10-28 22:56:37,136 INFO L132 encePairwiseOnDemand]: 65/70 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2021-10-28 22:56:37,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 51 transitions, 186 flow [2021-10-28 22:56:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:56:37,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 22:56:37,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 241 transitions. [2021-10-28 22:56:37,139 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5738095238095238 [2021-10-28 22:56:37,140 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 241 transitions. [2021-10-28 22:56:37,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 241 transitions. [2021-10-28 22:56:37,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:56:37,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 241 transitions. [2021-10-28 22:56:37,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:37,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:37,144 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:37,144 INFO L186 Difference]: Start difference. First operand has 73 places, 64 transitions, 166 flow. Second operand 6 states and 241 transitions. [2021-10-28 22:56:37,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 51 transitions, 186 flow [2021-10-28 22:56:37,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 51 transitions, 178 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 22:56:37,148 INFO L242 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2021-10-28 22:56:37,148 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2021-10-28 22:56:37,149 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, -4 predicate places. [2021-10-28 22:56:37,149 INFO L470 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2021-10-28 22:56:37,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.75) internal successors, (310), 8 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:56:37,152 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 22:56:37,152 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 22:56:37,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 22:56:37,156 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2021-10-28 22:56:37,158 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 22:56:37,159 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:56:37,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:56:37 BasicIcfg [2021-10-28 22:56:37,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:56:37,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:56:37,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:56:37,164 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:56:37,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:56:34" (3/4) ... [2021-10-28 22:56:37,168 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 22:56:37,174 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-10-28 22:56:37,179 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-28 22:56:37,179 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 22:56:37,180 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:56:37,180 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 22:56:37,245 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:56:37,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:56:37,258 INFO L168 Benchmark]: Toolchain (without parser) took 3555.90 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 82.4 MB in the beginning and 69.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:37,261 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 113.2 MB. Free memory was 65.9 MB in the beginning and 65.9 MB in the end (delta: 54.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:56:37,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.28 ms. Allocated memory is still 113.2 MB. Free memory was 82.2 MB in the beginning and 78.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:37,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.12 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 76.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:37,263 INFO L168 Benchmark]: Boogie Preprocessor took 61.50 ms. Allocated memory is still 113.2 MB. Free memory was 76.6 MB in the beginning and 75.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:37,263 INFO L168 Benchmark]: RCFGBuilder took 578.68 ms. Allocated memory is still 113.2 MB. Free memory was 75.2 MB in the beginning and 63.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:37,264 INFO L168 Benchmark]: TraceAbstraction took 2206.46 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 62.7 MB in the beginning and 72.4 MB in the end (delta: -9.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:37,266 INFO L168 Benchmark]: Witness Printer took 91.71 ms. Allocated memory is still 153.1 MB. Free memory was 72.4 MB in the beginning and 69.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:56:37,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 113.2 MB. Free memory was 65.9 MB in the beginning and 65.9 MB in the end (delta: 54.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 538.28 ms. Allocated memory is still 113.2 MB. Free memory was 82.2 MB in the beginning and 78.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.12 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 76.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.50 ms. Allocated memory is still 113.2 MB. Free memory was 76.6 MB in the beginning and 75.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 578.68 ms. Allocated memory is still 113.2 MB. Free memory was 75.2 MB in the beginning and 63.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2206.46 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 62.7 MB in the beginning and 72.4 MB in the end (delta: -9.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. * Witness Printer took 91.71 ms. Allocated memory is still 153.1 MB. Free memory was 72.4 MB in the beginning and 69.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 67 SDslu, 33 SDs, 0 SdLazy, 219 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 209 ConstructedInterpolants, 0 QuantifiedInterpolants, 997 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 22:56:37,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdc00edb-e655-48af-a30d-cce43a99706a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...