./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be --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 cb1d60f6e8ddeffda5f84a499ea5e09b409631d554ff2c668eba77999f4ee779 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:11:09,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:11:09,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:11:09,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:11:09,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:11:09,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:11:09,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:11:09,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:11:09,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:11:09,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:11:09,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:11:09,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:11:09,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:11:09,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:11:09,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:11:09,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:11:09,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:11:09,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:11:09,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:11:09,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:11:09,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:11:09,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:11:09,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:11:09,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:11:09,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:11:09,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:11:09,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:11:09,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:11:09,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:11:09,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:11:09,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:11:09,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:11:09,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:11:09,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:11:09,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:11:09,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:11:09,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:11:09,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:11:09,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:11:09,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:11:09,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:11:09,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:11:09,632 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:11:09,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:11:09,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:11:09,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:11:09,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:11:09,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:11:09,642 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:11:09,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:11:09,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:11:09,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:11:09,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:11:09,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:11:09,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:11:09,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:11:09,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:11:09,645 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:11:09,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:11:09,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:11:09,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:11:09,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:11:09,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:11:09,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:11:09,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:11:09,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:11:09,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:11:09,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:11:09,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:11:09,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:11:09,648 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:11:09,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:11:09,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:11:09,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:11:09,651 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_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1d60f6e8ddeffda5f84a499ea5e09b409631d554ff2c668eba77999f4ee779 [2021-10-21 20:11:09,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:11:09,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:11:09,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:11:09,953 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:11:09,954 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:11:09,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2021-10-21 20:11:10,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/data/c68ec0b7c/9834b4cf2a9b4cee804a33a7c944a4bc/FLAGff175de7d [2021-10-21 20:11:10,574 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:11:10,575 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2021-10-21 20:11:10,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/data/c68ec0b7c/9834b4cf2a9b4cee804a33a7c944a4bc/FLAGff175de7d [2021-10-21 20:11:10,917 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/data/c68ec0b7c/9834b4cf2a9b4cee804a33a7c944a4bc [2021-10-21 20:11:10,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:11:10,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:11:10,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:11:10,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:11:10,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:11:10,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:11:10" (1/1) ... [2021-10-21 20:11:10,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f99e547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:10, skipping insertion in model container [2021-10-21 20:11:10,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:11:10" (1/1) ... [2021-10-21 20:11:10,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:11:10,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:11:11,120 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_c7200478-9831-4d9d-8cd7-6509ec55aa63/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[2522,2535] [2021-10-21 20:11:11,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:11:11,133 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:11:11,156 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_c7200478-9831-4d9d-8cd7-6509ec55aa63/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[2522,2535] [2021-10-21 20:11:11,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:11:11,171 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:11:11,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11 WrapperNode [2021-10-21 20:11:11,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:11:11,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:11:11,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:11:11,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:11:11,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11" (1/1) ... [2021-10-21 20:11:11,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11" (1/1) ... [2021-10-21 20:11:11,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:11:11,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:11:11,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:11:11,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:11:11,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11" (1/1) ... [2021-10-21 20:11:11,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11" (1/1) ... [2021-10-21 20:11:11,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11" (1/1) ... [2021-10-21 20:11:11,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11" (1/1) ... [2021-10-21 20:11:11,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11" (1/1) ... [2021-10-21 20:11:11,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11" (1/1) ... [2021-10-21 20:11:11,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11" (1/1) ... [2021-10-21 20:11:11,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:11:11,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:11:11,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:11:11,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:11:11,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11" (1/1) ... [2021-10-21 20:11:11,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:11:11,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:11:11,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:11:11,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:11:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-21 20:11:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-21 20:11:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-21 20:11:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-21 20:11:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:11:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:11:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 20:11:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-21 20:11:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-21 20:11:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:11:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:11:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 20:11:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:11:11,371 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-21 20:11:11,744 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:11:11,745 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-21 20:11:11,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:11:11 BoogieIcfgContainer [2021-10-21 20:11:11,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:11:11,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:11:11,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:11:11,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:11:11,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:11:10" (1/3) ... [2021-10-21 20:11:11,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b45e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:11:11, skipping insertion in model container [2021-10-21 20:11:11,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:11:11" (2/3) ... [2021-10-21 20:11:11,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b45e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:11:11, skipping insertion in model container [2021-10-21 20:11:11,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:11:11" (3/3) ... [2021-10-21 20:11:11,756 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2021-10-21 20:11:11,761 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-21 20:11:11,762 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:11:11,762 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:11:11,762 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-21 20:11:11,798 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,798 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,799 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,799 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,801 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,801 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,801 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,802 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,805 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,805 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,806 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,806 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,806 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,806 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,806 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,807 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,807 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,807 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,808 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,808 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,808 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,808 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,813 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,815 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,816 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,816 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,816 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:11:11,825 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-21 20:11:11,873 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:11:11,880 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 [2021-10-21 20:11:11,880 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-21 20:11:11,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 127 transitions, 270 flow [2021-10-21 20:11:11,988 INFO L129 PetriNetUnfolder]: 10/125 cut-off events. [2021-10-21 20:11:11,991 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-21 20:11:11,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 125 events. 10/125 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2021-10-21 20:11:11,999 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 127 transitions, 270 flow [2021-10-21 20:11:12,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 117 transitions, 246 flow [2021-10-21 20:11:12,053 INFO L129 PetriNetUnfolder]: 10/116 cut-off events. [2021-10-21 20:11:12,053 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-21 20:11:12,053 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:11:12,054 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, 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] [2021-10-21 20:11:12,055 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-21 20:11:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:12,061 INFO L82 PathProgramCache]: Analyzing trace with hash 945933728, now seen corresponding path program 1 times [2021-10-21 20:11:12,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:12,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657364679] [2021-10-21 20:11:12,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:12,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:12,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:12,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:12,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657364679] [2021-10-21 20:11:12,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657364679] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:11:12,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:11:12,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 20:11:12,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720938313] [2021-10-21 20:11:12,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:11:12,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:12,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:11:12,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:11:12,718 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 127 [2021-10-21 20:11:12,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 117 transitions, 246 flow. Second operand has 7 states, 7 states have (on average 75.57142857142857) internal successors, (529), 7 states have internal predecessors, (529), 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) [2021-10-21 20:11:12,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:11:12,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 127 [2021-10-21 20:11:12,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:11:13,086 INFO L129 PetriNetUnfolder]: 47/338 cut-off events. [2021-10-21 20:11:13,086 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-10-21 20:11:13,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 338 events. 47/338 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1512 event pairs, 12 based on Foata normal form. 20/325 useless extension candidates. Maximal degree in co-relation 346. Up to 64 conditions per place. [2021-10-21 20:11:13,096 INFO L132 encePairwiseOnDemand]: 103/127 looper letters, 50 selfloop transitions, 20 changer transitions 8/139 dead transitions. [2021-10-21 20:11:13,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 139 transitions, 452 flow [2021-10-21 20:11:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:11:13,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-21 20:11:13,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 861 transitions. [2021-10-21 20:11:13,116 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6163206871868289 [2021-10-21 20:11:13,117 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 861 transitions. [2021-10-21 20:11:13,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 861 transitions. [2021-10-21 20:11:13,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:13,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 861 transitions. [2021-10-21 20:11:13,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.27272727272727) internal successors, (861), 11 states have internal predecessors, (861), 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) [2021-10-21 20:11:13,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 127.0) internal successors, (1524), 12 states have internal predecessors, (1524), 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) [2021-10-21 20:11:13,146 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 127.0) internal successors, (1524), 12 states have internal predecessors, (1524), 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) [2021-10-21 20:11:13,148 INFO L186 Difference]: Start difference. First operand has 114 places, 117 transitions, 246 flow. Second operand 11 states and 861 transitions. [2021-10-21 20:11:13,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 139 transitions, 452 flow [2021-10-21 20:11:13,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 139 transitions, 440 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-21 20:11:13,159 INFO L242 Difference]: Finished difference. Result has 125 places, 117 transitions, 337 flow [2021-10-21 20:11:13,161 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=337, PETRI_PLACES=125, PETRI_TRANSITIONS=117} [2021-10-21 20:11:13,162 INFO L334 CegarLoopForPetriNet]: 114 programPoint places, 11 predicate places. [2021-10-21 20:11:13,162 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 117 transitions, 337 flow [2021-10-21 20:11:13,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.57142857142857) internal successors, (529), 7 states have internal predecessors, (529), 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) [2021-10-21 20:11:13,163 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:11:13,163 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, 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] [2021-10-21 20:11:13,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:11:13,164 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-21 20:11:13,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:13,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1863547888, now seen corresponding path program 2 times [2021-10-21 20:11:13,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:13,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833703231] [2021-10-21 20:11:13,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:13,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:13,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:13,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:13,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833703231] [2021-10-21 20:11:13,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833703231] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:11:13,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:11:13,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 20:11:13,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122117274] [2021-10-21 20:11:13,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:11:13,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:13,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:11:13,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:11:13,495 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 127 [2021-10-21 20:11:13,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 117 transitions, 337 flow. Second operand has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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) [2021-10-21 20:11:13,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:11:13,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 127 [2021-10-21 20:11:13,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:11:13,717 INFO L129 PetriNetUnfolder]: 34/349 cut-off events. [2021-10-21 20:11:13,717 INFO L130 PetriNetUnfolder]: For 42/45 co-relation queries the response was YES. [2021-10-21 20:11:13,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 349 events. 34/349 cut-off events. For 42/45 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1785 event pairs, 4 based on Foata normal form. 1/342 useless extension candidates. Maximal degree in co-relation 390. Up to 65 conditions per place. [2021-10-21 20:11:13,721 INFO L132 encePairwiseOnDemand]: 116/127 looper letters, 35 selfloop transitions, 10 changer transitions 6/130 dead transitions. [2021-10-21 20:11:13,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 130 transitions, 466 flow [2021-10-21 20:11:13,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 20:11:13,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-21 20:11:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 783 transitions. [2021-10-21 20:11:13,726 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6165354330708661 [2021-10-21 20:11:13,727 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 783 transitions. [2021-10-21 20:11:13,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 783 transitions. [2021-10-21 20:11:13,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:13,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 783 transitions. [2021-10-21 20:11:13,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 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) [2021-10-21 20:11:13,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 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) [2021-10-21 20:11:13,737 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 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) [2021-10-21 20:11:13,737 INFO L186 Difference]: Start difference. First operand has 125 places, 117 transitions, 337 flow. Second operand 10 states and 783 transitions. [2021-10-21 20:11:13,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 130 transitions, 466 flow [2021-10-21 20:11:13,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 130 transitions, 462 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-21 20:11:13,745 INFO L242 Difference]: Finished difference. Result has 129 places, 122 transitions, 398 flow [2021-10-21 20:11:13,745 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=398, PETRI_PLACES=129, PETRI_TRANSITIONS=122} [2021-10-21 20:11:13,746 INFO L334 CegarLoopForPetriNet]: 114 programPoint places, 15 predicate places. [2021-10-21 20:11:13,746 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 122 transitions, 398 flow [2021-10-21 20:11:13,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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) [2021-10-21 20:11:13,747 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:11:13,747 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, 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] [2021-10-21 20:11:13,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:11:13,747 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-21 20:11:13,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:13,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1133718527, now seen corresponding path program 1 times [2021-10-21 20:11:13,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:13,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181954261] [2021-10-21 20:11:13,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:13,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:13,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:13,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:13,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181954261] [2021-10-21 20:11:13,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181954261] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:11:13,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:11:13,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:11:13,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833589439] [2021-10-21 20:11:13,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:11:13,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:13,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:11:13,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:11:13,812 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 127 [2021-10-21 20:11:13,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2021-10-21 20:11:13,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:11:13,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 127 [2021-10-21 20:11:13,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:11:13,889 INFO L129 PetriNetUnfolder]: 36/328 cut-off events. [2021-10-21 20:11:13,889 INFO L130 PetriNetUnfolder]: For 179/188 co-relation queries the response was YES. [2021-10-21 20:11:13,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 328 events. 36/328 cut-off events. For 179/188 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1590 event pairs, 9 based on Foata normal form. 6/330 useless extension candidates. Maximal degree in co-relation 612. Up to 65 conditions per place. [2021-10-21 20:11:13,893 INFO L132 encePairwiseOnDemand]: 121/127 looper letters, 25 selfloop transitions, 5 changer transitions 2/129 dead transitions. [2021-10-21 20:11:13,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 129 transitions, 494 flow [2021-10-21 20:11:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:11:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-21 20:11:13,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2021-10-21 20:11:13,896 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8871391076115486 [2021-10-21 20:11:13,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 338 transitions. [2021-10-21 20:11:13,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 338 transitions. [2021-10-21 20:11:13,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:13,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 338 transitions. [2021-10-21 20:11:13,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2021-10-21 20:11:13,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2021-10-21 20:11:13,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2021-10-21 20:11:13,900 INFO L186 Difference]: Start difference. First operand has 129 places, 122 transitions, 398 flow. Second operand 3 states and 338 transitions. [2021-10-21 20:11:13,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 129 transitions, 494 flow [2021-10-21 20:11:13,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 129 transitions, 486 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-10-21 20:11:13,909 INFO L242 Difference]: Finished difference. Result has 126 places, 125 transitions, 431 flow [2021-10-21 20:11:13,910 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=126, PETRI_TRANSITIONS=125} [2021-10-21 20:11:13,910 INFO L334 CegarLoopForPetriNet]: 114 programPoint places, 12 predicate places. [2021-10-21 20:11:13,910 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 125 transitions, 431 flow [2021-10-21 20:11:13,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2021-10-21 20:11:13,911 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:11:13,911 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, 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] [2021-10-21 20:11:13,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 20:11:13,911 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-21 20:11:13,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:13,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1502963841, now seen corresponding path program 2 times [2021-10-21 20:11:13,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:13,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435772929] [2021-10-21 20:11:13,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:13,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:14,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:14,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:14,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435772929] [2021-10-21 20:11:14,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435772929] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:11:14,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:11:14,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 20:11:14,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782095736] [2021-10-21 20:11:14,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:11:14,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:14,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:11:14,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:11:14,053 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 127 [2021-10-21 20:11:14,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 125 transitions, 431 flow. Second operand has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 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) [2021-10-21 20:11:14,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:11:14,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 127 [2021-10-21 20:11:14,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:11:14,348 INFO L129 PetriNetUnfolder]: 68/450 cut-off events. [2021-10-21 20:11:14,348 INFO L130 PetriNetUnfolder]: For 334/337 co-relation queries the response was YES. [2021-10-21 20:11:14,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1053 conditions, 450 events. 68/450 cut-off events. For 334/337 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2562 event pairs, 12 based on Foata normal form. 2/448 useless extension candidates. Maximal degree in co-relation 939. Up to 86 conditions per place. [2021-10-21 20:11:14,354 INFO L132 encePairwiseOnDemand]: 115/127 looper letters, 32 selfloop transitions, 39 changer transitions 0/162 dead transitions. [2021-10-21 20:11:14,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 162 transitions, 782 flow [2021-10-21 20:11:14,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:11:14,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-21 20:11:14,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 969 transitions. [2021-10-21 20:11:14,359 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.847769028871391 [2021-10-21 20:11:14,360 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 969 transitions. [2021-10-21 20:11:14,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 969 transitions. [2021-10-21 20:11:14,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:14,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 969 transitions. [2021-10-21 20:11:14,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 107.66666666666667) internal successors, (969), 9 states have internal predecessors, (969), 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) [2021-10-21 20:11:14,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 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) [2021-10-21 20:11:14,368 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 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) [2021-10-21 20:11:14,369 INFO L186 Difference]: Start difference. First operand has 126 places, 125 transitions, 431 flow. Second operand 9 states and 969 transitions. [2021-10-21 20:11:14,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 162 transitions, 782 flow [2021-10-21 20:11:14,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 162 transitions, 771 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-10-21 20:11:14,382 INFO L242 Difference]: Finished difference. Result has 137 places, 154 transitions, 762 flow [2021-10-21 20:11:14,382 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=762, PETRI_PLACES=137, PETRI_TRANSITIONS=154} [2021-10-21 20:11:14,382 INFO L334 CegarLoopForPetriNet]: 114 programPoint places, 23 predicate places. [2021-10-21 20:11:14,383 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 154 transitions, 762 flow [2021-10-21 20:11:14,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 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) [2021-10-21 20:11:14,385 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:11:14,385 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, 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] [2021-10-21 20:11:14,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 20:11:14,386 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-21 20:11:14,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:14,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1110086137, now seen corresponding path program 3 times [2021-10-21 20:11:14,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:14,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652789030] [2021-10-21 20:11:14,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:14,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:14,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:14,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:14,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652789030] [2021-10-21 20:11:14,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652789030] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:11:14,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:11:14,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-21 20:11:14,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620415014] [2021-10-21 20:11:14,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-21 20:11:14,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:14,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 20:11:14,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:11:14,675 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 127 [2021-10-21 20:11:14,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 154 transitions, 762 flow. Second operand has 11 states, 11 states have (on average 70.81818181818181) internal successors, (779), 11 states have internal predecessors, (779), 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) [2021-10-21 20:11:14,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:11:14,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 127 [2021-10-21 20:11:14,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:11:15,000 INFO L129 PetriNetUnfolder]: 83/580 cut-off events. [2021-10-21 20:11:15,001 INFO L130 PetriNetUnfolder]: For 887/892 co-relation queries the response was YES. [2021-10-21 20:11:15,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1624 conditions, 580 events. 83/580 cut-off events. For 887/892 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3892 event pairs, 7 based on Foata normal form. 14/593 useless extension candidates. Maximal degree in co-relation 1478. Up to 140 conditions per place. [2021-10-21 20:11:15,009 INFO L132 encePairwiseOnDemand]: 113/127 looper letters, 85 selfloop transitions, 38 changer transitions 10/201 dead transitions. [2021-10-21 20:11:15,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 201 transitions, 1357 flow [2021-10-21 20:11:15,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 20:11:15,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-21 20:11:15,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 950 transitions. [2021-10-21 20:11:15,014 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5754088431253785 [2021-10-21 20:11:15,014 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 950 transitions. [2021-10-21 20:11:15,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 950 transitions. [2021-10-21 20:11:15,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:15,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 950 transitions. [2021-10-21 20:11:15,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.07692307692308) internal successors, (950), 13 states have internal predecessors, (950), 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) [2021-10-21 20:11:15,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 127.0) internal successors, (1778), 14 states have internal predecessors, (1778), 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) [2021-10-21 20:11:15,024 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 127.0) internal successors, (1778), 14 states have internal predecessors, (1778), 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) [2021-10-21 20:11:15,024 INFO L186 Difference]: Start difference. First operand has 137 places, 154 transitions, 762 flow. Second operand 13 states and 950 transitions. [2021-10-21 20:11:15,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 201 transitions, 1357 flow [2021-10-21 20:11:15,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 201 transitions, 1301 flow, removed 28 selfloop flow, removed 0 redundant places. [2021-10-21 20:11:15,040 INFO L242 Difference]: Finished difference. Result has 154 places, 177 transitions, 1061 flow [2021-10-21 20:11:15,040 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1061, PETRI_PLACES=154, PETRI_TRANSITIONS=177} [2021-10-21 20:11:15,040 INFO L334 CegarLoopForPetriNet]: 114 programPoint places, 40 predicate places. [2021-10-21 20:11:15,041 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 177 transitions, 1061 flow [2021-10-21 20:11:15,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 70.81818181818181) internal successors, (779), 11 states have internal predecessors, (779), 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) [2021-10-21 20:11:15,041 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:11:15,042 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, 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] [2021-10-21 20:11:15,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 20:11:15,042 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-21 20:11:15,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:15,044 INFO L82 PathProgramCache]: Analyzing trace with hash -911938062, now seen corresponding path program 1 times [2021-10-21 20:11:15,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:15,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918780285] [2021-10-21 20:11:15,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:15,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:15,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:15,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918780285] [2021-10-21 20:11:15,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918780285] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:11:15,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:11:15,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 20:11:15,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784464434] [2021-10-21 20:11:15,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:11:15,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:15,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:11:15,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:11:15,282 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 127 [2021-10-21 20:11:15,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 177 transitions, 1061 flow. Second operand has 8 states, 8 states have (on average 81.25) internal successors, (650), 8 states have internal predecessors, (650), 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) [2021-10-21 20:11:15,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:11:15,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 127 [2021-10-21 20:11:15,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:11:15,521 INFO L129 PetriNetUnfolder]: 58/499 cut-off events. [2021-10-21 20:11:15,522 INFO L130 PetriNetUnfolder]: For 758/763 co-relation queries the response was YES. [2021-10-21 20:11:15,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1354 conditions, 499 events. 58/499 cut-off events. For 758/763 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3062 event pairs, 1 based on Foata normal form. 7/504 useless extension candidates. Maximal degree in co-relation 1168. Up to 56 conditions per place. [2021-10-21 20:11:15,526 INFO L132 encePairwiseOnDemand]: 117/127 looper letters, 28 selfloop transitions, 6 changer transitions 82/182 dead transitions. [2021-10-21 20:11:15,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 182 transitions, 1167 flow [2021-10-21 20:11:15,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:11:15,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-21 20:11:15,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 733 transitions. [2021-10-21 20:11:15,532 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6412948381452318 [2021-10-21 20:11:15,532 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 733 transitions. [2021-10-21 20:11:15,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 733 transitions. [2021-10-21 20:11:15,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:15,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 733 transitions. [2021-10-21 20:11:15,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 81.44444444444444) internal successors, (733), 9 states have internal predecessors, (733), 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) [2021-10-21 20:11:15,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 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) [2021-10-21 20:11:15,541 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 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) [2021-10-21 20:11:15,541 INFO L186 Difference]: Start difference. First operand has 154 places, 177 transitions, 1061 flow. Second operand 9 states and 733 transitions. [2021-10-21 20:11:15,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 182 transitions, 1167 flow [2021-10-21 20:11:15,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 182 transitions, 1117 flow, removed 15 selfloop flow, removed 6 redundant places. [2021-10-21 20:11:15,564 INFO L242 Difference]: Finished difference. Result has 158 places, 100 transitions, 348 flow [2021-10-21 20:11:15,565 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=1011, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=348, PETRI_PLACES=158, PETRI_TRANSITIONS=100} [2021-10-21 20:11:15,565 INFO L334 CegarLoopForPetriNet]: 114 programPoint places, 44 predicate places. [2021-10-21 20:11:15,565 INFO L470 AbstractCegarLoop]: Abstraction has has 158 places, 100 transitions, 348 flow [2021-10-21 20:11:15,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.25) internal successors, (650), 8 states have internal predecessors, (650), 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) [2021-10-21 20:11:15,566 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:11:15,567 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, 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] [2021-10-21 20:11:15,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 20:11:15,567 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-21 20:11:15,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:15,568 INFO L82 PathProgramCache]: Analyzing trace with hash 139313862, now seen corresponding path program 2 times [2021-10-21 20:11:15,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:11:15,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655795561] [2021-10-21 20:11:15,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:15,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:11:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:15,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:15,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:11:15,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655795561] [2021-10-21 20:11:15,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655795561] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:11:15,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:11:15,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:11:15,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633588790] [2021-10-21 20:11:15,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:11:15,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:11:15,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:11:15,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:11:15,678 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 127 [2021-10-21 20:11:15,679 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 100 transitions, 348 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2021-10-21 20:11:15,679 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:11:15,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 127 [2021-10-21 20:11:15,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:11:15,768 INFO L129 PetriNetUnfolder]: 0/108 cut-off events. [2021-10-21 20:11:15,768 INFO L130 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2021-10-21 20:11:15,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 108 events. 0/108 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 30 event pairs, 0 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2021-10-21 20:11:15,769 INFO L132 encePairwiseOnDemand]: 122/127 looper letters, 0 selfloop transitions, 0 changer transitions 98/98 dead transitions. [2021-10-21 20:11:15,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 98 transitions, 408 flow [2021-10-21 20:11:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:11:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-21 20:11:15,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 496 transitions. [2021-10-21 20:11:15,772 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6509186351706037 [2021-10-21 20:11:15,772 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 496 transitions. [2021-10-21 20:11:15,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 496 transitions. [2021-10-21 20:11:15,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:11:15,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 496 transitions. [2021-10-21 20:11:15,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2021-10-21 20:11:15,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-10-21 20:11:15,778 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-10-21 20:11:15,778 INFO L186 Difference]: Start difference. First operand has 158 places, 100 transitions, 348 flow. Second operand 6 states and 496 transitions. [2021-10-21 20:11:15,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 98 transitions, 408 flow [2021-10-21 20:11:15,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 98 transitions, 278 flow, removed 22 selfloop flow, removed 33 redundant places. [2021-10-21 20:11:15,782 INFO L242 Difference]: Finished difference. Result has 112 places, 0 transitions, 0 flow [2021-10-21 20:11:15,782 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=112, PETRI_TRANSITIONS=0} [2021-10-21 20:11:15,782 INFO L334 CegarLoopForPetriNet]: 114 programPoint places, -2 predicate places. [2021-10-21 20:11:15,782 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 0 transitions, 0 flow [2021-10-21 20:11:15,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2021-10-21 20:11:15,785 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:11:15,786 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-21 20:11:15,786 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-21 20:11:15,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 20:11:15,794 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-21 20:11:15,794 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:11:15,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:11:15 BasicIcfg [2021-10-21 20:11:15,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:11:15,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:11:15,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:11:15,798 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:11:15,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:11:11" (3/4) ... [2021-10-21 20:11:15,802 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:11:15,809 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-21 20:11:15,809 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-21 20:11:15,817 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-21 20:11:15,817 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 20:11:15,817 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:11:15,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:11:15,880 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:11:15,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:11:15,882 INFO L168 Benchmark]: Toolchain (without parser) took 4957.62 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 58.2 MB in the beginning and 80.3 MB in the end (delta: -22.1 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:15,882 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 74.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:11:15,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.89 ms. Allocated memory is still 96.5 MB. Free memory was 58.0 MB in the beginning and 47.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:15,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.25 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 47.7 MB in the beginning and 95.2 MB in the end (delta: -47.4 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:15,884 INFO L168 Benchmark]: Boogie Preprocessor took 25.09 ms. Allocated memory is still 117.4 MB. Free memory was 95.2 MB in the beginning and 93.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:11:15,884 INFO L168 Benchmark]: RCFGBuilder took 473.06 ms. Allocated memory is still 117.4 MB. Free memory was 93.8 MB in the beginning and 79.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:15,885 INFO L168 Benchmark]: TraceAbstraction took 4048.25 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 78.7 MB in the beginning and 83.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:15,885 INFO L168 Benchmark]: Witness Printer took 82.54 ms. Allocated memory is still 142.6 MB. Free memory was 83.4 MB in the beginning and 80.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:15,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 74.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 246.89 ms. Allocated memory is still 96.5 MB. Free memory was 58.0 MB in the beginning and 47.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.25 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 47.7 MB in the beginning and 95.2 MB in the end (delta: -47.4 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.09 ms. Allocated memory is still 117.4 MB. Free memory was 95.2 MB in the beginning and 93.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 473.06 ms. Allocated memory is still 117.4 MB. Free memory was 93.8 MB in the beginning and 79.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4048.25 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 78.7 MB in the beginning and 83.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * Witness Printer took 82.54 ms. Allocated memory is still 142.6 MB. Free memory was 83.4 MB in the beginning and 80.3 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 93]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 144 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 43.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3923.2ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1910.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 116.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 229 SDtfs, 206 SDslu, 507 SDs, 0 SdLazy, 643 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 428.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 524.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1061occurred in iteration=5, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 50.7ms SsaConstructionTime, 403.6ms SatisfiabilityAnalysisTime, 1160.7ms InterpolantComputationTime, 684 NumberOfCodeBlocks, 684 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 677 ConstructedInterpolants, 0 QuantifiedInterpolants, 1937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2021-10-21 20:11:15,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7200478-9831-4d9d-8cd7-6509ec55aa63/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...