./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa --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 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:46:06,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:46:06,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:46:06,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:46:06,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:46:06,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:46:06,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:46:06,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:46:06,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:46:06,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:46:06,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:46:06,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:46:06,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:46:06,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:46:06,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:46:06,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:46:06,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:46:06,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:46:06,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:46:06,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:46:06,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:46:06,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:46:06,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:46:06,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:46:06,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:46:06,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:46:06,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:46:06,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:46:06,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:46:06,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:46:06,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:46:06,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:46:06,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:46:06,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:46:06,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:46:06,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:46:06,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:46:06,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:46:06,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:46:06,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:46:06,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:46:06,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 21:46:06,269 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:46:06,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:46:06,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:46:06,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:46:06,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:46:06,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:46:06,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:46:06,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:46:06,270 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:46:06,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:46:06,271 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:46:06,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:46:06,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:46:06,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:46:06,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 21:46:06,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:46:06,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 21:46:06,271 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:46:06,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:46:06,272 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:46:06,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 21:46:06,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:46:06,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:46:06,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:46:06,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:46:06,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:46:06,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:46:06,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 21:46:06,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:46:06,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 21:46:06,273 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 21:46:06,273 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 21:46:06,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 21:46:06,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:46:06,273 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_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 [2021-12-06 21:46:06,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:46:06,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:46:06,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:46:06,480 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:46:06,481 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:46:06,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2021-12-06 21:46:06,527 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/data/41accae33/9ae58962c96b49bd9349d084b046b4f9/FLAG4dd6345f7 [2021-12-06 21:46:06,947 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:46:06,948 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2021-12-06 21:46:06,954 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/data/41accae33/9ae58962c96b49bd9349d084b046b4f9/FLAG4dd6345f7 [2021-12-06 21:46:06,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/data/41accae33/9ae58962c96b49bd9349d084b046b4f9 [2021-12-06 21:46:06,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:46:06,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:46:06,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:46:06,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:46:06,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:46:06,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:46:06" (1/1) ... [2021-12-06 21:46:06,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251dfd01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:06, skipping insertion in model container [2021-12-06 21:46:06,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:46:06" (1/1) ... [2021-12-06 21:46:06,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:46:06,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:46:07,145 WARN L230 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_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2021-12-06 21:46:07,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:46:07,154 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:46:07,185 WARN L230 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_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2021-12-06 21:46:07,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:46:07,197 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:46:07,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07 WrapperNode [2021-12-06 21:46:07,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:46:07,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:46:07,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:46:07,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:46:07,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07" (1/1) ... [2021-12-06 21:46:07,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07" (1/1) ... [2021-12-06 21:46:07,236 INFO L137 Inliner]: procedures = 23, calls = 176, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 440 [2021-12-06 21:46:07,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:46:07,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:46:07,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:46:07,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:46:07,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07" (1/1) ... [2021-12-06 21:46:07,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07" (1/1) ... [2021-12-06 21:46:07,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07" (1/1) ... [2021-12-06 21:46:07,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07" (1/1) ... [2021-12-06 21:46:07,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07" (1/1) ... [2021-12-06 21:46:07,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07" (1/1) ... [2021-12-06 21:46:07,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07" (1/1) ... [2021-12-06 21:46:07,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:46:07,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:46:07,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:46:07,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:46:07,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07" (1/1) ... [2021-12-06 21:46:07,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:46:07,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:46:07,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 21:46:07,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1afae1b6-2a9b-4c09-862a-d47da7f7ab55/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 21:46:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 21:46:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-06 21:46:07,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-06 21:46:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-06 21:46:07,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-06 21:46:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-06 21:46:07,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-06 21:46:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-12-06 21:46:07,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-12-06 21:46:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 21:46:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 21:46:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 21:46:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-06 21:46:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-06 21:46:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:46:07,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:46:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 21:46:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 21:46:07,330 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 21:46:07,405 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:46:07,406 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:46:07,714 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:46:07,831 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:46:07,831 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 21:46:07,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:46:07 BoogieIcfgContainer [2021-12-06 21:46:07,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:46:07,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 21:46:07,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 21:46:07,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 21:46:07,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 09:46:06" (1/3) ... [2021-12-06 21:46:07,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2faff7dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:46:07, skipping insertion in model container [2021-12-06 21:46:07,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:46:07" (2/3) ... [2021-12-06 21:46:07,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2faff7dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:46:07, skipping insertion in model container [2021-12-06 21:46:07,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:46:07" (3/3) ... [2021-12-06 21:46:07,840 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2021-12-06 21:46:07,844 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 21:46:07,844 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 21:46:07,844 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 21:46:07,844 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 21:46:07,874 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,874 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,875 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,875 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,875 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,875 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,875 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,875 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,876 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,877 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,877 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,877 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,877 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,877 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,881 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,881 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,881 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,881 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,882 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,882 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,882 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,882 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,882 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,882 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,895 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,897 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,898 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,899 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,899 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,899 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,899 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,899 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,899 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,900 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,900 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,900 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,900 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,900 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,900 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,900 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,900 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,900 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,901 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,901 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,901 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,901 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,901 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,901 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,901 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,901 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,901 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,901 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,902 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,902 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,902 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,902 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,902 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,902 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,902 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,902 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,902 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,903 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,903 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,903 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,904 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,904 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,904 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,904 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,904 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,904 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,904 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,905 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,905 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,905 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,905 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,905 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,905 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,905 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,905 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,905 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,905 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,906 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,906 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,906 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,906 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,906 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,906 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,906 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,906 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,906 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,906 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,907 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,907 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,907 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,907 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,907 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,907 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,907 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,907 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,907 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,908 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,910 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,910 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,910 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,910 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,910 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,910 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,910 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,911 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,911 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,911 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,911 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,912 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,912 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,912 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,912 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,912 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,912 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,912 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,913 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,913 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,913 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,913 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,913 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,913 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,913 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,913 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,914 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,914 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,914 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,914 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,914 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,914 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 21:46:07,916 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-12-06 21:46:07,951 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 21:46:07,956 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 [2021-12-06 21:46:07,956 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-12-06 21:46:07,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 213 places, 202 transitions, 436 flow [2021-12-06 21:46:08,029 INFO L129 PetriNetUnfolder]: 2/198 cut-off events. [2021-12-06 21:46:08,029 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-06 21:46:08,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 198 events. 2/198 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 205 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 150. Up to 2 conditions per place. [2021-12-06 21:46:08,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 202 transitions, 436 flow [2021-12-06 21:46:08,036 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 185 transitions, 394 flow [2021-12-06 21:46:08,067 INFO L129 PetriNetUnfolder]: 2/184 cut-off events. [2021-12-06 21:46:08,067 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-06 21:46:08,067 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:46:08,068 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:46:08,068 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-06 21:46:08,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:46:08,072 INFO L85 PathProgramCache]: Analyzing trace with hash -945693717, now seen corresponding path program 1 times [2021-12-06 21:46:08,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:46:08,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778917204] [2021-12-06 21:46:08,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:46:08,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:46:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:46:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:46:08,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:46:08,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778917204] [2021-12-06 21:46:08,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778917204] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:46:08,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:46:08,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-06 21:46:08,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295067672] [2021-12-06 21:46:08,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:46:08,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 21:46:08,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:46:08,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 21:46:08,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-12-06 21:46:08,737 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 202 [2021-12-06 21:46:08,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 185 transitions, 394 flow. Second operand has 15 states, 15 states have (on average 127.93333333333334) internal successors, (1919), 15 states have internal predecessors, (1919), 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) [2021-12-06 21:46:08,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:46:08,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 202 [2021-12-06 21:46:08,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:46:24,839 INFO L129 PetriNetUnfolder]: 93240/165958 cut-off events. [2021-12-06 21:46:24,839 INFO L130 PetriNetUnfolder]: For 11533/11533 co-relation queries the response was YES. [2021-12-06 21:46:25,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 302885 conditions, 165958 events. 93240/165958 cut-off events. For 11533/11533 co-relation queries the response was YES. Maximal size of possible extension queue 3498. Compared 1710226 event pairs, 56436 based on Foata normal form. 9/165022 useless extension candidates. Maximal degree in co-relation 301046. Up to 76469 conditions per place. [2021-12-06 21:46:26,174 INFO L132 encePairwiseOnDemand]: 180/202 looper letters, 341 selfloop transitions, 31 changer transitions 30/509 dead transitions. [2021-12-06 21:46:26,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 509 transitions, 1948 flow [2021-12-06 21:46:26,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-06 21:46:26,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-12-06 21:46:26,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3610 transitions. [2021-12-06 21:46:26,198 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6873571972581873 [2021-12-06 21:46:26,199 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 3610 transitions. [2021-12-06 21:46:26,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 3610 transitions. [2021-12-06 21:46:26,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:46:26,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 3610 transitions. [2021-12-06 21:46:26,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 138.84615384615384) internal successors, (3610), 26 states have internal predecessors, (3610), 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) [2021-12-06 21:46:26,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 202.0) internal successors, (5454), 27 states have internal predecessors, (5454), 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) [2021-12-06 21:46:26,236 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 202.0) internal successors, (5454), 27 states have internal predecessors, (5454), 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) [2021-12-06 21:46:26,237 INFO L186 Difference]: Start difference. First operand has 196 places, 185 transitions, 394 flow. Second operand 26 states and 3610 transitions. [2021-12-06 21:46:26,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 509 transitions, 1948 flow [2021-12-06 21:46:26,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 509 transitions, 1864 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-12-06 21:46:26,359 INFO L242 Difference]: Finished difference. Result has 220 places, 210 transitions, 543 flow [2021-12-06 21:46:26,361 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=543, PETRI_PLACES=220, PETRI_TRANSITIONS=210} [2021-12-06 21:46:26,364 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 24 predicate places. [2021-12-06 21:46:26,364 INFO L470 AbstractCegarLoop]: Abstraction has has 220 places, 210 transitions, 543 flow [2021-12-06 21:46:26,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 127.93333333333334) internal successors, (1919), 15 states have internal predecessors, (1919), 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) [2021-12-06 21:46:26,365 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:46:26,366 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:46:26,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 21:46:26,366 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-06 21:46:26,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:46:26,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2131695185, now seen corresponding path program 2 times [2021-12-06 21:46:26,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:46:26,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809122525] [2021-12-06 21:46:26,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:46:26,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:46:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:46:26,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:46:26,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:46:26,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809122525] [2021-12-06 21:46:26,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809122525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:46:26,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:46:26,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:46:26,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746723791] [2021-12-06 21:46:26,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:46:26,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:46:26,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:46:26,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:46:26,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:46:26,529 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 202 [2021-12-06 21:46:26,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 210 transitions, 543 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-12-06 21:46:26,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:46:26,531 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 202 [2021-12-06 21:46:26,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:46:36,079 INFO L129 PetriNetUnfolder]: 54028/98174 cut-off events. [2021-12-06 21:46:36,079 INFO L130 PetriNetUnfolder]: For 2539/2539 co-relation queries the response was YES. [2021-12-06 21:46:36,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183907 conditions, 98174 events. 54028/98174 cut-off events. For 2539/2539 co-relation queries the response was YES. Maximal size of possible extension queue 2270. Compared 973780 event pairs, 36143 based on Foata normal form. 2050/99506 useless extension candidates. Maximal degree in co-relation 183869. Up to 46800 conditions per place. [2021-12-06 21:46:36,830 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 81 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2021-12-06 21:46:36,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 240 transitions, 772 flow [2021-12-06 21:46:36,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:46:36,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 21:46:36,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2021-12-06 21:46:36,832 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8646864686468647 [2021-12-06 21:46:36,832 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 524 transitions. [2021-12-06 21:46:36,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 524 transitions. [2021-12-06 21:46:36,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:46:36,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 524 transitions. [2021-12-06 21:46:36,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2021-12-06 21:46:36,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2021-12-06 21:46:36,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2021-12-06 21:46:36,836 INFO L186 Difference]: Start difference. First operand has 220 places, 210 transitions, 543 flow. Second operand 3 states and 524 transitions. [2021-12-06 21:46:36,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 240 transitions, 772 flow [2021-12-06 21:46:36,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 240 transitions, 762 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-12-06 21:46:36,883 INFO L242 Difference]: Finished difference. Result has 204 places, 210 transitions, 545 flow [2021-12-06 21:46:36,883 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=545, PETRI_PLACES=204, PETRI_TRANSITIONS=210} [2021-12-06 21:46:36,884 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 8 predicate places. [2021-12-06 21:46:36,884 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 210 transitions, 545 flow [2021-12-06 21:46:36,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-12-06 21:46:36,884 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:46:36,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:46:36,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 21:46:36,885 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-06 21:46:36,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:46:36,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2038968719, now seen corresponding path program 3 times [2021-12-06 21:46:36,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:46:36,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213102453] [2021-12-06 21:46:36,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:46:36,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:46:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:46:36,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:46:36,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:46:36,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213102453] [2021-12-06 21:46:36,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213102453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:46:36,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:46:36,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:46:36,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087403939] [2021-12-06 21:46:36,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:46:36,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:46:36,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:46:36,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:46:36,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:46:36,991 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 202 [2021-12-06 21:46:36,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 210 transitions, 545 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-12-06 21:46:36,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:46:36,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 202 [2021-12-06 21:46:36,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:46:45,559 INFO L129 PetriNetUnfolder]: 55191/98675 cut-off events. [2021-12-06 21:46:45,559 INFO L130 PetriNetUnfolder]: For 5735/5735 co-relation queries the response was YES. [2021-12-06 21:46:45,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191783 conditions, 98675 events. 55191/98675 cut-off events. For 5735/5735 co-relation queries the response was YES. Maximal size of possible extension queue 2386. Compared 986243 event pairs, 34563 based on Foata normal form. 2085/99988 useless extension candidates. Maximal degree in co-relation 181397. Up to 48071 conditions per place. [2021-12-06 21:46:46,199 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 81 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2021-12-06 21:46:46,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 240 transitions, 778 flow [2021-12-06 21:46:46,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:46:46,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 21:46:46,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2021-12-06 21:46:46,201 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8646864686468647 [2021-12-06 21:46:46,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 524 transitions. [2021-12-06 21:46:46,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 524 transitions. [2021-12-06 21:46:46,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:46:46,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 524 transitions. [2021-12-06 21:46:46,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2021-12-06 21:46:46,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2021-12-06 21:46:46,204 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2021-12-06 21:46:46,204 INFO L186 Difference]: Start difference. First operand has 204 places, 210 transitions, 545 flow. Second operand 3 states and 524 transitions. [2021-12-06 21:46:46,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 240 transitions, 778 flow [2021-12-06 21:46:46,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 240 transitions, 774 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 21:46:46,336 INFO L242 Difference]: Finished difference. Result has 205 places, 210 transitions, 553 flow [2021-12-06 21:46:46,336 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=553, PETRI_PLACES=205, PETRI_TRANSITIONS=210} [2021-12-06 21:46:46,337 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 9 predicate places. [2021-12-06 21:46:46,337 INFO L470 AbstractCegarLoop]: Abstraction has has 205 places, 210 transitions, 553 flow [2021-12-06 21:46:46,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-12-06 21:46:46,337 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:46:46,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:46:46,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 21:46:46,338 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-06 21:46:46,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:46:46,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1746802641, now seen corresponding path program 4 times [2021-12-06 21:46:46,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:46:46,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594887639] [2021-12-06 21:46:46,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:46:46,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:46:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:46:46,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:46:46,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:46:46,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594887639] [2021-12-06 21:46:46,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594887639] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:46:46,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:46:46,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:46:46,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847190033] [2021-12-06 21:46:46,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:46:46,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:46:46,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:46:46,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:46:46,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:46:46,459 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 202 [2021-12-06 21:46:46,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 210 transitions, 553 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-12-06 21:46:46,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:46:46,459 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 202 [2021-12-06 21:46:46,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:46:55,188 INFO L129 PetriNetUnfolder]: 55056/102775 cut-off events. [2021-12-06 21:46:55,188 INFO L130 PetriNetUnfolder]: For 8003/8003 co-relation queries the response was YES. [2021-12-06 21:46:55,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201767 conditions, 102775 events. 55056/102775 cut-off events. For 8003/8003 co-relation queries the response was YES. Maximal size of possible extension queue 2593. Compared 1071988 event pairs, 35676 based on Foata normal form. 2165/104392 useless extension candidates. Maximal degree in co-relation 192093. Up to 50675 conditions per place. [2021-12-06 21:46:55,985 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 81 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2021-12-06 21:46:55,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 240 transitions, 790 flow [2021-12-06 21:46:55,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:46:55,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 21:46:55,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2021-12-06 21:46:55,988 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8646864686468647 [2021-12-06 21:46:55,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 524 transitions. [2021-12-06 21:46:55,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 524 transitions. [2021-12-06 21:46:55,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:46:55,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 524 transitions. [2021-12-06 21:46:55,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2021-12-06 21:46:55,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2021-12-06 21:46:55,991 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2021-12-06 21:46:55,991 INFO L186 Difference]: Start difference. First operand has 205 places, 210 transitions, 553 flow. Second operand 3 states and 524 transitions. [2021-12-06 21:46:55,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 240 transitions, 790 flow [2021-12-06 21:46:56,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 240 transitions, 786 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 21:46:56,044 INFO L242 Difference]: Finished difference. Result has 206 places, 210 transitions, 561 flow [2021-12-06 21:46:56,044 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=561, PETRI_PLACES=206, PETRI_TRANSITIONS=210} [2021-12-06 21:46:56,045 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 10 predicate places. [2021-12-06 21:46:56,045 INFO L470 AbstractCegarLoop]: Abstraction has has 206 places, 210 transitions, 561 flow [2021-12-06 21:46:56,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-12-06 21:46:56,045 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:46:56,045 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:46:56,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 21:46:56,046 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-06 21:46:56,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:46:56,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1733469921, now seen corresponding path program 5 times [2021-12-06 21:46:56,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:46:56,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053212067] [2021-12-06 21:46:56,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:46:56,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:46:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:46:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:46:56,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:46:56,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053212067] [2021-12-06 21:46:56,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053212067] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:46:56,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:46:56,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 21:46:56,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501579938] [2021-12-06 21:46:56,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:46:56,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 21:46:56,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:46:56,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 21:46:56,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 21:46:56,345 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 202 [2021-12-06 21:46:56,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 210 transitions, 561 flow. Second operand has 12 states, 12 states have (on average 134.66666666666666) internal successors, (1616), 12 states have internal predecessors, (1616), 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) [2021-12-06 21:46:56,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:46:56,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 202 [2021-12-06 21:46:56,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:47:18,405 INFO L129 PetriNetUnfolder]: 141499/244102 cut-off events. [2021-12-06 21:47:18,405 INFO L130 PetriNetUnfolder]: For 26558/26568 co-relation queries the response was YES. [2021-12-06 21:47:19,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 513509 conditions, 244102 events. 141499/244102 cut-off events. For 26558/26568 co-relation queries the response was YES. Maximal size of possible extension queue 5387. Compared 2571397 event pairs, 40375 based on Foata normal form. 3815/243681 useless extension candidates. Maximal degree in co-relation 447400. Up to 118173 conditions per place. [2021-12-06 21:47:20,310 INFO L132 encePairwiseOnDemand]: 177/202 looper letters, 355 selfloop transitions, 83 changer transitions 0/580 dead transitions. [2021-12-06 21:47:20,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 580 transitions, 2344 flow [2021-12-06 21:47:20,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 21:47:20,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-06 21:47:20,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2644 transitions. [2021-12-06 21:47:20,317 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7699475829935934 [2021-12-06 21:47:20,318 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2644 transitions. [2021-12-06 21:47:20,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2644 transitions. [2021-12-06 21:47:20,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:47:20,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2644 transitions. [2021-12-06 21:47:20,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 155.52941176470588) internal successors, (2644), 17 states have internal predecessors, (2644), 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) [2021-12-06 21:47:20,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 202.0) internal successors, (3636), 18 states have internal predecessors, (3636), 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) [2021-12-06 21:47:20,330 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 202.0) internal successors, (3636), 18 states have internal predecessors, (3636), 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) [2021-12-06 21:47:20,331 INFO L186 Difference]: Start difference. First operand has 206 places, 210 transitions, 561 flow. Second operand 17 states and 2644 transitions. [2021-12-06 21:47:20,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 580 transitions, 2344 flow [2021-12-06 21:47:21,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 580 transitions, 2340 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 21:47:21,174 INFO L242 Difference]: Finished difference. Result has 233 places, 296 transitions, 1150 flow [2021-12-06 21:47:21,174 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=557, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1150, PETRI_PLACES=233, PETRI_TRANSITIONS=296} [2021-12-06 21:47:21,175 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 37 predicate places. [2021-12-06 21:47:21,175 INFO L470 AbstractCegarLoop]: Abstraction has has 233 places, 296 transitions, 1150 flow [2021-12-06 21:47:21,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 134.66666666666666) internal successors, (1616), 12 states have internal predecessors, (1616), 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) [2021-12-06 21:47:21,175 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:47:21,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:47:21,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 21:47:21,176 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-06 21:47:21,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:47:21,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1642840003, now seen corresponding path program 6 times [2021-12-06 21:47:21,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:47:21,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453827667] [2021-12-06 21:47:21,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:47:21,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:47:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:47:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:47:21,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:47:21,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453827667] [2021-12-06 21:47:21,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453827667] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:47:21,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:47:21,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 21:47:21,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822020608] [2021-12-06 21:47:21,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:47:21,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 21:47:21,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:47:21,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 21:47:21,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 21:47:21,247 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 202 [2021-12-06 21:47:21,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 296 transitions, 1150 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-12-06 21:47:21,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:47:21,248 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 202 [2021-12-06 21:47:21,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:47:46,539 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L241-->L244: Formula: (= v_~n4~0_16 0) InVars {} OutVars{~n4~0=v_~n4~0_16} AuxVars[] AssignedVars[~n4~0][292], [Black: 299#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), Black: 314#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 316#(and (<= 1 ~n1~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 302#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 312#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 304#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 300#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 306#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 305#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n2~0)), Black: 310#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 303#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 301#(and (<= 0 ~n4~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 318#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 220#(and (<= ~i~0 0) (<= 0 ~i~0)), 106#L192true, Black: 243#(and (<= ~i~0 2) (<= 0 ~i4~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 1 ~i2~0) (<= 2 ~i~0)), 15#L88true, Black: 249#(and (<= 0 ~i4~0) (<= 2 ~i1~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 3 ~i~0) (<= 1 ~i2~0) (<= ~i1~0 2) (<= ~i~0 3)), Black: 239#(and (<= 1 ~i~0) (<= 0 ~i4~0) (<= ~i~0 1) (<= ~i4~0 0)), Black: 282#(= ~e3~0 1), 333#true, Black: 287#(= ~e2~0 1), Black: 292#(= ~e4~0 1), 100#L244true, 295#true, 135#L140true, 176#L273-4true, 216#true]) [2021-12-06 21:47:46,539 INFO L384 tUnfolder$Statistics]: this new event has 152 ancestors and is cut-off event [2021-12-06 21:47:46,539 INFO L387 tUnfolder$Statistics]: existing Event has 152 ancestors and is cut-off event [2021-12-06 21:47:46,539 INFO L387 tUnfolder$Statistics]: existing Event has 152 ancestors and is cut-off event [2021-12-06 21:47:46,539 INFO L387 tUnfolder$Statistics]: existing Event has 152 ancestors and is cut-off event [2021-12-06 21:47:46,666 INFO L129 PetriNetUnfolder]: 120128/216652 cut-off events. [2021-12-06 21:47:46,666 INFO L130 PetriNetUnfolder]: For 420021/422283 co-relation queries the response was YES. [2021-12-06 21:47:48,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 658312 conditions, 216652 events. 120128/216652 cut-off events. For 420021/422283 co-relation queries the response was YES. Maximal size of possible extension queue 4851. Compared 2359154 event pairs, 80660 based on Foata normal form. 3621/216790 useless extension candidates. Maximal degree in co-relation 584383. Up to 126631 conditions per place. [2021-12-06 21:47:49,172 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 196 selfloop transitions, 2 changer transitions 0/376 dead transitions. [2021-12-06 21:47:49,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 376 transitions, 1984 flow [2021-12-06 21:47:49,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 21:47:49,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 21:47:49,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2021-12-06 21:47:49,175 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8646864686468647 [2021-12-06 21:47:49,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 524 transitions. [2021-12-06 21:47:49,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 524 transitions. [2021-12-06 21:47:49,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:47:49,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 524 transitions. [2021-12-06 21:47:49,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2021-12-06 21:47:49,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2021-12-06 21:47:49,178 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2021-12-06 21:47:49,178 INFO L186 Difference]: Start difference. First operand has 233 places, 296 transitions, 1150 flow. Second operand 3 states and 524 transitions. [2021-12-06 21:47:49,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 376 transitions, 1984 flow [2021-12-06 21:47:50,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 376 transitions, 1980 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 21:47:50,737 INFO L242 Difference]: Finished difference. Result has 234 places, 296 transitions, 1158 flow [2021-12-06 21:47:50,737 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=1146, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1158, PETRI_PLACES=234, PETRI_TRANSITIONS=296} [2021-12-06 21:47:50,738 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 38 predicate places. [2021-12-06 21:47:50,738 INFO L470 AbstractCegarLoop]: Abstraction has has 234 places, 296 transitions, 1158 flow [2021-12-06 21:47:50,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2021-12-06 21:47:50,738 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:47:50,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:47:50,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 21:47:50,739 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-06 21:47:50,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:47:50,739 INFO L85 PathProgramCache]: Analyzing trace with hash 76153243, now seen corresponding path program 7 times [2021-12-06 21:47:50,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:47:50,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571636905] [2021-12-06 21:47:50,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:47:50,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:47:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:47:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:47:50,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:47:50,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571636905] [2021-12-06 21:47:50,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571636905] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:47:50,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:47:50,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 21:47:50,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855492281] [2021-12-06 21:47:50,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:47:50,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 21:47:50,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:47:50,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 21:47:50,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 21:47:50,973 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 202 [2021-12-06 21:47:50,975 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 296 transitions, 1158 flow. Second operand has 12 states, 12 states have (on average 134.66666666666666) internal successors, (1616), 12 states have internal predecessors, (1616), 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) [2021-12-06 21:47:50,975 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:47:50,975 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 202 [2021-12-06 21:47:50,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:48:21,655 INFO L129 PetriNetUnfolder]: 145896/255364 cut-off events. [2021-12-06 21:48:21,655 INFO L130 PetriNetUnfolder]: For 530228/535176 co-relation queries the response was YES. [2021-12-06 21:48:23,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 805727 conditions, 255364 events. 145896/255364 cut-off events. For 530228/535176 co-relation queries the response was YES. Maximal size of possible extension queue 5785. Compared 2749087 event pairs, 89879 based on Foata normal form. 310/250566 useless extension candidates. Maximal degree in co-relation 683969. Up to 194954 conditions per place. [2021-12-06 21:48:24,627 INFO L132 encePairwiseOnDemand]: 185/202 looper letters, 307 selfloop transitions, 62 changer transitions 0/511 dead transitions. [2021-12-06 21:48:24,627 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 511 transitions, 3030 flow [2021-12-06 21:48:24,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 21:48:24,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 21:48:24,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1932 transitions. [2021-12-06 21:48:24,633 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7357197258187357 [2021-12-06 21:48:24,633 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1932 transitions. [2021-12-06 21:48:24,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1932 transitions. [2021-12-06 21:48:24,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:48:24,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1932 transitions. [2021-12-06 21:48:24,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 148.6153846153846) internal successors, (1932), 13 states have internal predecessors, (1932), 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) [2021-12-06 21:48:24,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 202.0) internal successors, (2828), 14 states have internal predecessors, (2828), 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) [2021-12-06 21:48:24,642 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 202.0) internal successors, (2828), 14 states have internal predecessors, (2828), 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) [2021-12-06 21:48:24,642 INFO L186 Difference]: Start difference. First operand has 234 places, 296 transitions, 1158 flow. Second operand 13 states and 1932 transitions. [2021-12-06 21:48:24,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 511 transitions, 3030 flow [2021-12-06 21:48:26,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 511 transitions, 3026 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 21:48:26,534 INFO L242 Difference]: Finished difference. Result has 253 places, 360 transitions, 1843 flow [2021-12-06 21:48:26,534 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1843, PETRI_PLACES=253, PETRI_TRANSITIONS=360} [2021-12-06 21:48:26,535 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 57 predicate places. [2021-12-06 21:48:26,535 INFO L470 AbstractCegarLoop]: Abstraction has has 253 places, 360 transitions, 1843 flow [2021-12-06 21:48:26,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 134.66666666666666) internal successors, (1616), 12 states have internal predecessors, (1616), 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) [2021-12-06 21:48:26,536 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:48:26,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:48:26,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 21:48:26,536 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-06 21:48:26,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:48:26,536 INFO L85 PathProgramCache]: Analyzing trace with hash 940361645, now seen corresponding path program 8 times [2021-12-06 21:48:26,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:48:26,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660669876] [2021-12-06 21:48:26,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:48:26,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:48:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:48:26,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:48:26,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:48:26,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660669876] [2021-12-06 21:48:26,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660669876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:48:26,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:48:26,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-06 21:48:26,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892172429] [2021-12-06 21:48:26,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:48:26,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 21:48:26,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:48:26,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 21:48:26,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-12-06 21:48:26,701 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 202 [2021-12-06 21:48:26,703 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 360 transitions, 1843 flow. Second operand has 15 states, 15 states have (on average 127.93333333333334) internal successors, (1919), 15 states have internal predecessors, (1919), 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) [2021-12-06 21:48:26,703 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:48:26,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 202 [2021-12-06 21:48:26,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:49:19,290 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L241-->L244: Formula: (= v_~n4~0_16 0) InVars {} OutVars{~n4~0=v_~n4~0_16} AuxVars[] AssignedVars[~n4~0][357], [Black: 299#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), Black: 314#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), 338#true, Black: 316#(and (<= 1 ~n1~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 302#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 312#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 304#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 300#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 306#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 305#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n2~0)), Black: 310#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 303#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 301#(and (<= 0 ~n4~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 318#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 220#(and (<= ~i~0 0) (<= 0 ~i~0)), 106#L192true, Black: 243#(and (<= ~i~0 2) (<= 0 ~i4~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 1 ~i2~0) (<= 2 ~i~0)), Black: 249#(and (<= 0 ~i4~0) (<= 2 ~i1~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 3 ~i~0) (<= 1 ~i2~0) (<= ~i1~0 2) (<= ~i~0 3)), Black: 239#(and (<= 1 ~i~0) (<= 0 ~i4~0) (<= ~i~0 1) (<= ~i4~0 0)), Black: 282#(= ~e3~0 1), Black: 287#(= ~e2~0 1), Black: 353#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0) (<= ~n3~0 ~n1~0)), Black: 346#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n1~0 0)), Black: 347#(and (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n2~0 ~n3~0)), Black: 349#(and (<= 2 ~n3~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 292#(= ~e4~0 1), Black: 345#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0)), Black: 344#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0)), Black: 348#(and (<= ~n3~0 ~n2~0) (<= 2 ~n3~0)), Black: 343#(and (= ~n2~0 0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0) (<= (+ ~n2~0 1) ~n1~0)), 100#L244true, Black: 342#(and (= ~n2~0 0) (<= ~n3~0 ~n1~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), 295#true, 364#true, 123#L47true, 135#L140true, 176#L273-4true, 216#true]) [2021-12-06 21:49:19,290 INFO L384 tUnfolder$Statistics]: this new event has 139 ancestors and is not cut-off event [2021-12-06 21:49:19,290 INFO L387 tUnfolder$Statistics]: existing Event has 139 ancestors and is not cut-off event [2021-12-06 21:49:19,290 INFO L387 tUnfolder$Statistics]: existing Event has 139 ancestors and is not cut-off event [2021-12-06 21:49:19,290 INFO L387 tUnfolder$Statistics]: existing Event has 139 ancestors and is not cut-off event [2021-12-06 21:49:19,516 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L241-->L244: Formula: (= v_~n4~0_16 0) InVars {} OutVars{~n4~0=v_~n4~0_16} AuxVars[] AssignedVars[~n4~0][357], [Black: 299#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), Black: 314#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), 338#true, Black: 316#(and (<= 1 ~n1~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 302#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 312#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 304#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 300#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 306#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 305#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n2~0)), Black: 310#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 303#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 301#(and (<= 0 ~n4~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 318#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 220#(and (<= ~i~0 0) (<= 0 ~i~0)), Black: 335#(= ~e1~0 1), Black: 243#(and (<= ~i~0 2) (<= 0 ~i4~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 1 ~i2~0) (<= 2 ~i~0)), 15#L88true, 90#L154true, Black: 249#(and (<= 0 ~i4~0) (<= 2 ~i1~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 3 ~i~0) (<= 1 ~i2~0) (<= ~i1~0 2) (<= ~i~0 3)), Black: 239#(and (<= 1 ~i~0) (<= 0 ~i4~0) (<= ~i~0 1) (<= ~i4~0 0)), Black: 287#(= ~e2~0 1), Black: 353#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0) (<= ~n3~0 ~n1~0)), Black: 346#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n1~0 0)), Black: 347#(and (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n2~0 ~n3~0)), Black: 292#(= ~e4~0 1), Black: 349#(and (<= 2 ~n3~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 345#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0)), Black: 344#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0)), Black: 348#(and (<= ~n3~0 ~n2~0) (<= 2 ~n3~0)), Black: 343#(and (= ~n2~0 0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0) (<= (+ ~n2~0 1) ~n1~0)), 100#L244true, Black: 342#(and (= ~n2~0 0) (<= ~n3~0 ~n1~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), 295#true, 391#(and (<= 0 ~i1~0) (<= ~i2~0 1) (<= ~i1~0 0) (<= 1 ~i2~0)), 135#L140true, 176#L273-4true, 216#true]) [2021-12-06 21:49:19,516 INFO L384 tUnfolder$Statistics]: this new event has 140 ancestors and is not cut-off event [2021-12-06 21:49:19,516 INFO L387 tUnfolder$Statistics]: existing Event has 140 ancestors and is not cut-off event [2021-12-06 21:49:19,516 INFO L387 tUnfolder$Statistics]: existing Event has 140 ancestors and is not cut-off event [2021-12-06 21:49:19,516 INFO L387 tUnfolder$Statistics]: existing Event has 140 ancestors and is not cut-off event [2021-12-06 21:49:20,748 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L241-->L244: Formula: (= v_~n4~0_16 0) InVars {} OutVars{~n4~0=v_~n4~0_16} AuxVars[] AssignedVars[~n4~0][357], [Black: 299#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), Black: 314#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), 338#true, Black: 316#(and (<= 1 ~n1~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 302#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 312#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 304#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 300#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 306#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 305#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n2~0)), Black: 310#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 303#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 301#(and (<= 0 ~n4~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 318#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 220#(and (<= ~i~0 0) (<= 0 ~i~0)), 106#L192true, Black: 243#(and (<= ~i~0 2) (<= 0 ~i4~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 1 ~i2~0) (<= 2 ~i~0)), Black: 249#(and (<= 0 ~i4~0) (<= 2 ~i1~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 3 ~i~0) (<= 1 ~i2~0) (<= ~i1~0 2) (<= ~i~0 3)), Black: 239#(and (<= 1 ~i~0) (<= 0 ~i4~0) (<= ~i~0 1) (<= ~i4~0 0)), Black: 282#(= ~e3~0 1), Black: 287#(= ~e2~0 1), Black: 353#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0) (<= ~n3~0 ~n1~0)), Black: 346#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n1~0 0)), 37#L50true, Black: 347#(and (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n2~0 ~n3~0)), Black: 349#(and (<= 2 ~n3~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 292#(= ~e4~0 1), Black: 345#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0)), Black: 344#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0)), Black: 348#(and (<= ~n3~0 ~n2~0) (<= 2 ~n3~0)), Black: 343#(and (= ~n2~0 0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0) (<= (+ ~n2~0 1) ~n1~0)), 100#L244true, Black: 342#(and (= ~n2~0 0) (<= ~n3~0 ~n1~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), 295#true, 364#true, 135#L140true, 176#L273-4true, 216#true]) [2021-12-06 21:49:20,749 INFO L384 tUnfolder$Statistics]: this new event has 140 ancestors and is not cut-off event [2021-12-06 21:49:20,749 INFO L387 tUnfolder$Statistics]: existing Event has 140 ancestors and is not cut-off event [2021-12-06 21:49:20,749 INFO L387 tUnfolder$Statistics]: existing Event has 140 ancestors and is not cut-off event [2021-12-06 21:49:20,749 INFO L387 tUnfolder$Statistics]: existing Event has 140 ancestors and is not cut-off event [2021-12-06 21:49:20,750 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L241-->L244: Formula: (= v_~n4~0_16 0) InVars {} OutVars{~n4~0=v_~n4~0_16} AuxVars[] AssignedVars[~n4~0][357], [Black: 299#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), Black: 314#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), 338#true, Black: 316#(and (<= 1 ~n1~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 302#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 312#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 304#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 300#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 306#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 305#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n2~0)), Black: 310#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 303#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 301#(and (<= 0 ~n4~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), 239#(and (<= 1 ~i~0) (<= 0 ~i4~0) (<= ~i~0 1) (<= ~i4~0 0)), Black: 318#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 220#(and (<= ~i~0 0) (<= 0 ~i~0)), 106#L192true, Black: 243#(and (<= ~i~0 2) (<= 0 ~i4~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 1 ~i2~0) (<= 2 ~i~0)), Black: 249#(and (<= 0 ~i4~0) (<= 2 ~i1~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 3 ~i~0) (<= 1 ~i2~0) (<= ~i1~0 2) (<= ~i~0 3)), Black: 282#(= ~e3~0 1), Black: 287#(= ~e2~0 1), Black: 353#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0) (<= ~n3~0 ~n1~0)), Black: 346#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n1~0 0)), 37#L50true, Black: 347#(and (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n2~0 ~n3~0)), Black: 349#(and (<= 2 ~n3~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 292#(= ~e4~0 1), Black: 345#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0)), Black: 344#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0)), Black: 348#(and (<= ~n3~0 ~n2~0) (<= 2 ~n3~0)), Black: 343#(and (= ~n2~0 0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0) (<= (+ ~n2~0 1) ~n1~0)), 100#L244true, Black: 342#(and (= ~n2~0 0) (<= ~n3~0 ~n1~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), 295#true, 364#true, 135#L140true, 176#L273-4true]) [2021-12-06 21:49:20,750 INFO L384 tUnfolder$Statistics]: this new event has 140 ancestors and is not cut-off event [2021-12-06 21:49:20,750 INFO L387 tUnfolder$Statistics]: existing Event has 140 ancestors and is not cut-off event [2021-12-06 21:49:20,750 INFO L387 tUnfolder$Statistics]: existing Event has 140 ancestors and is not cut-off event [2021-12-06 21:49:20,750 INFO L387 tUnfolder$Statistics]: existing Event has 140 ancestors and is not cut-off event [2021-12-06 21:49:22,183 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1087] L241-->L244: Formula: (= v_~n4~0_16 0) InVars {} OutVars{~n4~0=v_~n4~0_16} AuxVars[] AssignedVars[~n4~0][357], [Black: 299#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), Black: 314#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), 338#true, Black: 316#(and (<= 1 ~n1~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 302#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 312#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 304#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 300#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 306#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 305#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n2~0)), Black: 310#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 303#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 301#(and (<= 0 ~n4~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 318#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), 94#L160true, Black: 220#(and (<= ~i~0 0) (<= 0 ~i~0)), Black: 335#(= ~e1~0 1), Black: 243#(and (<= ~i~0 2) (<= 0 ~i4~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 1 ~i2~0) (<= 2 ~i~0)), 15#L88true, Black: 249#(and (<= 0 ~i4~0) (<= 2 ~i1~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 3 ~i~0) (<= 1 ~i2~0) (<= ~i1~0 2) (<= ~i~0 3)), Black: 239#(and (<= 1 ~i~0) (<= 0 ~i4~0) (<= ~i~0 1) (<= ~i4~0 0)), Black: 287#(= ~e2~0 1), Black: 353#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0) (<= ~n3~0 ~n1~0)), Black: 346#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n1~0 0)), Black: 347#(and (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n2~0 ~n3~0)), Black: 292#(= ~e4~0 1), Black: 349#(and (<= 2 ~n3~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 345#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0)), Black: 344#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0)), Black: 348#(and (<= ~n3~0 ~n2~0) (<= 2 ~n3~0)), Black: 343#(and (= ~n2~0 0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0) (<= (+ ~n2~0 1) ~n1~0)), 100#L244true, Black: 342#(and (= ~n2~0 0) (<= ~n3~0 ~n1~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), 295#true, 364#true, 135#L140true, 176#L273-4true, 216#true]) [2021-12-06 21:49:22,183 INFO L384 tUnfolder$Statistics]: this new event has 142 ancestors and is not cut-off event [2021-12-06 21:49:22,183 INFO L387 tUnfolder$Statistics]: existing Event has 142 ancestors and is not cut-off event [2021-12-06 21:49:22,183 INFO L387 tUnfolder$Statistics]: existing Event has 142 ancestors and is not cut-off event [2021-12-06 21:49:22,183 INFO L387 tUnfolder$Statistics]: existing Event has 142 ancestors and is not cut-off event [2021-12-06 21:49:28,147 INFO L129 PetriNetUnfolder]: 241282/433243 cut-off events. [2021-12-06 21:49:28,147 INFO L130 PetriNetUnfolder]: For 1241925/1243829 co-relation queries the response was YES. [2021-12-06 21:49:32,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1441118 conditions, 433243 events. 241282/433243 cut-off events. For 1241925/1243829 co-relation queries the response was YES. Maximal size of possible extension queue 8513. Compared 5021104 event pairs, 108398 based on Foata normal form. 415/428324 useless extension candidates. Maximal degree in co-relation 1235398. Up to 162761 conditions per place. [2021-12-06 21:49:34,540 INFO L132 encePairwiseOnDemand]: 184/202 looper letters, 747 selfloop transitions, 59 changer transitions 10/959 dead transitions. [2021-12-06 21:49:34,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 959 transitions, 6993 flow [2021-12-06 21:49:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 21:49:34,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-12-06 21:49:34,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2625 transitions. [2021-12-06 21:49:34,546 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.721947194719472 [2021-12-06 21:49:34,546 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2625 transitions. [2021-12-06 21:49:34,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2625 transitions. [2021-12-06 21:49:34,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:49:34,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2625 transitions. [2021-12-06 21:49:34,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 145.83333333333334) internal successors, (2625), 18 states have internal predecessors, (2625), 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) [2021-12-06 21:49:34,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 202.0) internal successors, (3838), 19 states have internal predecessors, (3838), 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) [2021-12-06 21:49:34,559 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 202.0) internal successors, (3838), 19 states have internal predecessors, (3838), 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) [2021-12-06 21:49:34,559 INFO L186 Difference]: Start difference. First operand has 253 places, 360 transitions, 1843 flow. Second operand 18 states and 2625 transitions. [2021-12-06 21:49:34,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 959 transitions, 6993 flow [2021-12-06 21:49:43,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 959 transitions, 6859 flow, removed 65 selfloop flow, removed 2 redundant places. [2021-12-06 21:49:43,331 INFO L242 Difference]: Finished difference. Result has 278 places, 414 transitions, 2276 flow [2021-12-06 21:49:43,331 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=1781, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2276, PETRI_PLACES=278, PETRI_TRANSITIONS=414} [2021-12-06 21:49:43,332 INFO L334 CegarLoopForPetriNet]: 196 programPoint places, 82 predicate places. [2021-12-06 21:49:43,332 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 414 transitions, 2276 flow [2021-12-06 21:49:43,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 127.93333333333334) internal successors, (1919), 15 states have internal predecessors, (1919), 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) [2021-12-06 21:49:43,333 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 21:49:43,333 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:49:43,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 21:49:43,333 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-12-06 21:49:43,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:49:43,333 INFO L85 PathProgramCache]: Analyzing trace with hash 873309821, now seen corresponding path program 9 times [2021-12-06 21:49:43,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:49:43,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073320036] [2021-12-06 21:49:43,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:49:43,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:49:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:49:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:49:43,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:49:43,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073320036] [2021-12-06 21:49:43,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073320036] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:49:43,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:49:43,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-06 21:49:43,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426456288] [2021-12-06 21:49:43,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:49:43,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-06 21:49:43,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:49:43,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 21:49:43,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-12-06 21:49:43,600 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 202 [2021-12-06 21:49:43,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 414 transitions, 2276 flow. Second operand has 16 states, 16 states have (on average 133.25) internal successors, (2132), 16 states have internal predecessors, (2132), 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) [2021-12-06 21:49:43,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 21:49:43,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 202 [2021-12-06 21:49:43,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 21:50:29,597 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1062] L163-->L167: Formula: (and (= (ite (= (mod v_~e1~0_25 256) 0) 1 0) |v_thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1_1|) (not (= |v_thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1_1| 0)) (= |v_thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1_1| |v_thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1_1|)) InVars {~e1~0=v_~e1~0_25} OutVars{thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1=|v_thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1_1|, thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1=|v_thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1_1|, ~e1~0=v_~e1~0_25} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1, thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1][156], [84#L59true, Black: 220#(and (<= ~i~0 0) (<= 0 ~i~0)), Black: 243#(and (<= ~i~0 2) (<= 0 ~i4~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 1 ~i2~0) (<= 2 ~i~0)), Black: 249#(and (<= 0 ~i4~0) (<= 2 ~i1~0) (<= ~i2~0 1) (<= ~i4~0 0) (<= 3 ~i~0) (<= 1 ~i2~0) (<= ~i1~0 2) (<= ~i~0 3)), Black: 369#(and (<= 0 ~i1~0) (<= ~i1~0 0)), Black: 239#(and (<= 1 ~i~0) (<= 0 ~i4~0) (<= ~i~0 1) (<= ~i4~0 0)), Black: 395#(and (<= 0 ~i1~0) (<= ~i2~0 1) (<= 3 ~i~0) (<= ~i1~0 0) (<= 2 ~i3~0) (<= 1 ~i2~0) (<= ~i3~0 2) (<= ~i~0 3)), Black: 368#(and (<= ~i~0 0) (<= 0 ~i~0)), Black: 397#(and (<= 0 ~i1~0) (<= ~i2~0 1) (<= ~i1~0 0) (<= 2 ~i3~0) (<= 1 ~i2~0) (<= ~i3~0 2)), Black: 391#(and (<= 0 ~i1~0) (<= ~i2~0 1) (<= ~i1~0 0) (<= 1 ~i2~0)), Black: 282#(= ~e3~0 1), Black: 385#(and (<= 1 ~i~0) (<= 0 ~i1~0) (<= ~i~0 1) (<= ~i1~0 0)), Black: 403#(and (<= 0 ~i1~0) (<= ~i2~0 1) (< 3 ~i~0) (<= ~i~0 4) (<= 3 ~i4~0) (<= ~i4~0 3) (<= ~i1~0 0) (<= 2 ~i3~0) (<= 1 ~i2~0) (<= ~i3~0 2) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), 121#L167true, Black: 389#(and (<= ~i~0 2) (<= 0 ~i1~0) (<= ~i2~0 1) (<= ~i1~0 0) (<= 1 ~i2~0) (<= 2 ~i~0)), Black: 405#(and (<= 0 ~i1~0) (<= ~i2~0 1) (< 3 ~i~0) (<= ~i~0 4) (<= 3 ~i4~0) (<= ~i4~0 3) (<= ~i1~0 0) (<= 2 ~i3~0) (<= 1 ~i2~0) (<= ~i3~0 2) (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)), Black: 401#(and (<= 0 ~i1~0) (<= ~i2~0 1) (< 3 ~i~0) (<= ~i~0 4) (<= 3 ~i4~0) (<= ~i4~0 3) (<= ~i1~0 0) (<= 2 ~i3~0) (<= 1 ~i2~0) (<= ~i3~0 2)), Black: 287#(= ~e2~0 1), 364#true, 135#L140true, Black: 299#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), Black: 314#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 316#(and (<= 1 ~n1~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), 338#true, Black: 302#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 312#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0) (<= ~n1~0 ~n2~0)), Black: 304#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 300#(and (<= 0 ~n4~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 306#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 305#(and (<= 1 ~n1~0) (<= ~n3~0 ~n2~0) (<= ~n1~0 ~n2~0)), Black: 310#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= (+ ~n3~0 1) ~n2~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 (+ ~n4~0 1))), Black: 303#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= ~n1~0 ~n2~0) (<= ~n1~0 (+ ~n4~0 1))), 166#L212true, Black: 301#(and (<= 0 ~n4~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 318#(and (<= 1 ~n1~0) (<= (+ ~n1~0 1) ~n2~0) (<= ~n3~0 ~n1~0) (<= ~n1~0 ~n4~0) (<= ~n4~0 ~n1~0)), Black: 335#(= ~e1~0 1), Black: 353#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0) (<= ~n3~0 ~n1~0)), Black: 346#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n1~0 0)), Black: 347#(and (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0) (= ~n2~0 ~n3~0)), Black: 349#(and (<= 2 ~n3~0) (<= (+ ~n3~0 1) ~n2~0)), Black: 345#(and (= ~n2~0 0) (<= (+ 2 ~n4~0) ~n3~0) (<= 2 ~n3~0)), Black: 344#(and (<= (+ ~n4~0 1) ~n3~0) (= ~n2~0 0) (<= 1 ~n3~0)), Black: 348#(and (<= ~n3~0 ~n2~0) (<= 2 ~n3~0)), Black: 343#(and (= ~n2~0 0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0) (<= (+ ~n2~0 1) ~n1~0)), Black: 342#(and (= ~n2~0 0) (<= ~n3~0 ~n1~0) (<= ~n4~0 ~n1~0) (<= ~n2~0 ~n1~0)), 295#true, 417#true, 176#L273-4true, 216#true]) [2021-12-06 21:50:29,597 INFO L384 tUnfolder$Statistics]: this new event has 125 ancestors and is cut-off event [2021-12-06 21:50:29,597 INFO L387 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2021-12-06 21:50:29,597 INFO L387 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2021-12-06 21:50:29,597 INFO L387 tUnfolder$Statistics]: existing Event has 125 ancestors and is cut-off event [2021-12-06 21:51:57,099 INFO L129 PetriNetUnfolder]: 478640/835182 cut-off events. [2021-12-06 21:51:57,099 INFO L130 PetriNetUnfolder]: For 2607335/2633850 co-relation queries the response was YES. [2021-12-06 21:52:06,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2958162 conditions, 835182 events. 478640/835182 cut-off events. For 2607335/2633850 co-relation queries the response was YES. Maximal size of possible extension queue 20306. Compared 10110496 event pairs, 143656 based on Foata normal form. 7797/815883 useless extension candidates. Maximal degree in co-relation 2957996. Up to 265704 conditions per place. [2021-12-06 21:52:10,488 INFO L132 encePairwiseOnDemand]: 172/202 looper letters, 1014 selfloop transitions, 373 changer transitions 0/1583 dead transitions. [2021-12-06 21:52:10,488 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 1583 transitions, 11526 flow [2021-12-06 21:52:10,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-06 21:52:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-12-06 21:52:10,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 5790 transitions. [2021-12-06 21:52:10,497 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7746855766657746 [2021-12-06 21:52:10,497 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 5790 transitions. [2021-12-06 21:52:10,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 5790 transitions. [2021-12-06 21:52:10,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:52:10,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 5790 transitions. [2021-12-06 21:52:10,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 156.48648648648648) internal successors, (5790), 37 states have internal predecessors, (5790), 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) [2021-12-06 21:52:10,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 202.0) internal successors, (7676), 38 states have internal predecessors, (7676), 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) [2021-12-06 21:52:10,519 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 202.0) internal successors, (7676), 38 states have internal predecessors, (7676), 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) [2021-12-06 21:52:10,519 INFO L186 Difference]: Start difference. First operand has 278 places, 414 transitions, 2276 flow. Second operand 37 states and 5790 transitions. [2021-12-06 21:52:10,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 1583 transitions, 11526 flow