./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f9b434f3343269d91303305376bff127738dc22172486554888e346753333fd7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:01:21,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:01:21,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:01:21,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:01:21,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:01:21,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:01:21,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:01:21,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:01:21,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:01:21,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:01:21,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:01:21,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:01:21,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:01:21,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:01:21,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:01:21,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:01:21,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:01:21,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:01:21,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:01:21,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:01:21,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:01:21,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:01:21,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:01:21,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:01:21,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:01:21,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:01:21,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:01:21,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:01:21,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:01:21,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:01:21,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:01:21,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:01:21,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:01:21,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:01:21,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:01:21,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:01:21,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:01:21,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:01:21,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:01:21,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:01:21,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:01:21,496 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:01:21,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:01:21,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:01:21,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:01:21,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:01:21,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:01:21,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:01:21,524 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:01:21,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:01:21,525 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:01:21,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:01:21,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:01:21,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:01:21,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:01:21,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:01:21,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:01:21,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:01:21,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:01:21,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:01:21,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:01:21,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:01:21,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:01:21,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:01:21,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:01:21,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:01:21,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:01:21,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:01:21,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:01:21,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:01:21,538 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:01:21,538 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:01:21,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:01:21,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:01:21,539 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_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9b434f3343269d91303305376bff127738dc22172486554888e346753333fd7 [2021-10-28 23:01:21,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:01:21,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:01:21,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:01:21,860 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:01:21,861 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:01:21,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/weaver/popl20-prod-cons.wvr.c [2021-10-28 23:01:21,946 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/data/a7574e28d/c50c268b1b104fb5ae4798d1506dae41/FLAG889c4ec5a [2021-10-28 23:01:22,420 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:01:22,421 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/sv-benchmarks/c/weaver/popl20-prod-cons.wvr.c [2021-10-28 23:01:22,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/data/a7574e28d/c50c268b1b104fb5ae4798d1506dae41/FLAG889c4ec5a [2021-10-28 23:01:22,784 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/data/a7574e28d/c50c268b1b104fb5ae4798d1506dae41 [2021-10-28 23:01:22,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:01:22,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:01:22,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:01:22,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:01:22,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:01:22,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:01:22" (1/1) ... [2021-10-28 23:01:22,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5f3ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:22, skipping insertion in model container [2021-10-28 23:01:22,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:01:22" (1/1) ... [2021-10-28 23:01:22,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:01:22,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:01:23,047 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/sv-benchmarks/c/weaver/popl20-prod-cons.wvr.c[3056,3069] [2021-10-28 23:01:23,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:01:23,077 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:01:23,102 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/sv-benchmarks/c/weaver/popl20-prod-cons.wvr.c[3056,3069] [2021-10-28 23:01:23,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:01:23,144 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:01:23,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23 WrapperNode [2021-10-28 23:01:23,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:01:23,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:01:23,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:01:23,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:01:23,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23" (1/1) ... [2021-10-28 23:01:23,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23" (1/1) ... [2021-10-28 23:01:23,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:01:23,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:01:23,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:01:23,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:01:23,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23" (1/1) ... [2021-10-28 23:01:23,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23" (1/1) ... [2021-10-28 23:01:23,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23" (1/1) ... [2021-10-28 23:01:23,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23" (1/1) ... [2021-10-28 23:01:23,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23" (1/1) ... [2021-10-28 23:01:23,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23" (1/1) ... [2021-10-28 23:01:23,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23" (1/1) ... [2021-10-28 23:01:23,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:01:23,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:01:23,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:01:23,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:01:23,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23" (1/1) ... [2021-10-28 23:01:23,288 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:01:23,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:01:23,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:01:23,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:01:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 23:01:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 23:01:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 23:01:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 23:01:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-28 23:01:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-28 23:01:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:01:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:01:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:01:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 23:01:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 23:01:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:01:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:01:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:01:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:01:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:01:23,362 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:01:23,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:01:23,979 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-10-28 23:01:23,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:01:23 BoogieIcfgContainer [2021-10-28 23:01:23,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:01:23,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:01:23,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:01:23,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:01:23,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:01:22" (1/3) ... [2021-10-28 23:01:23,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a45d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:01:23, skipping insertion in model container [2021-10-28 23:01:23,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:01:23" (2/3) ... [2021-10-28 23:01:23,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a45d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:01:23, skipping insertion in model container [2021-10-28 23:01:23,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:01:23" (3/3) ... [2021-10-28 23:01:23,996 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons.wvr.c [2021-10-28 23:01:24,000 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:01:24,000 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:01:24,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:01:24,001 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:01:24,031 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,032 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,032 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,032 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,032 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,033 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,033 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,033 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,033 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,033 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,034 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,034 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,034 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,034 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,034 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,035 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,035 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,035 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,035 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,035 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,035 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,036 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,036 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,036 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,036 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,036 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,037 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,037 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,037 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,037 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,037 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,037 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,038 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,038 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,038 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,039 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,039 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,039 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,039 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,039 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,039 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,040 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,040 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,040 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,040 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,040 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,041 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,041 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,041 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,041 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,041 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,042 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,042 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,042 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,042 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,042 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,043 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,043 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,043 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,043 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,044 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,044 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,044 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,044 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,047 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,047 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,050 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,051 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,051 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,051 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,051 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,051 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,052 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,052 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,052 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,053 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,053 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,054 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,054 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,054 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,054 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,054 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,055 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:01:24,061 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-28 23:01:24,153 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:01:24,159 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:01:24,160 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 23:01:24,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 142 transitions, 308 flow [2021-10-28 23:01:24,240 INFO L129 PetriNetUnfolder]: 11/139 cut-off events. [2021-10-28 23:01:24,240 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 23:01:24,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 11/139 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 111. Up to 3 conditions per place. [2021-10-28 23:01:24,245 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 142 transitions, 308 flow [2021-10-28 23:01:24,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 129 transitions, 276 flow [2021-10-28 23:01:24,285 INFO L129 PetriNetUnfolder]: 11/128 cut-off events. [2021-10-28 23:01:24,285 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 23:01:24,286 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:01:24,286 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] [2021-10-28 23:01:24,287 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:01:24,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:01:24,292 INFO L85 PathProgramCache]: Analyzing trace with hash -480053002, now seen corresponding path program 1 times [2021-10-28 23:01:24,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:01:24,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920772625] [2021-10-28 23:01:24,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:01:24,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:01:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:01:24,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:01:24,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:01:24,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920772625] [2021-10-28 23:01:24,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920772625] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:01:24,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:01:24,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:01:24,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657213308] [2021-10-28 23:01:24,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:01:24,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:01:24,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:01:24,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:01:24,681 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 142 [2021-10-28 23:01:24,685 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 129 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 125.75) internal successors, (503), 4 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:24,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:01:24,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 142 [2021-10-28 23:01:24,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:01:24,801 INFO L129 PetriNetUnfolder]: 31/189 cut-off events. [2021-10-28 23:01:24,801 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-10-28 23:01:24,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 189 events. 31/189 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 373 event pairs, 1 based on Foata normal form. 23/194 useless extension candidates. Maximal degree in co-relation 156. Up to 23 conditions per place. [2021-10-28 23:01:24,806 INFO L132 encePairwiseOnDemand]: 130/142 looper letters, 14 selfloop transitions, 5 changer transitions 4/131 dead transitions. [2021-10-28 23:01:24,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 131 transitions, 318 flow [2021-10-28 23:01:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:01:24,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 23:01:24,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2021-10-28 23:01:24,822 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9197183098591549 [2021-10-28 23:01:24,826 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2021-10-28 23:01:24,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2021-10-28 23:01:24,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:01:24,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2021-10-28 23:01:24,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:24,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:24,854 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:24,856 INFO L186 Difference]: Start difference. First operand has 128 places, 129 transitions, 276 flow. Second operand 5 states and 653 transitions. [2021-10-28 23:01:24,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 131 transitions, 318 flow [2021-10-28 23:01:24,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 131 transitions, 306 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 23:01:24,867 INFO L242 Difference]: Finished difference. Result has 129 places, 121 transitions, 273 flow [2021-10-28 23:01:24,869 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=273, PETRI_PLACES=129, PETRI_TRANSITIONS=121} [2021-10-28 23:01:24,870 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, 1 predicate places. [2021-10-28 23:01:24,870 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 121 transitions, 273 flow [2021-10-28 23:01:24,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 125.75) internal successors, (503), 4 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:24,871 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:01:24,872 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] [2021-10-28 23:01:24,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:01:24,872 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:01:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:01:24,873 INFO L85 PathProgramCache]: Analyzing trace with hash -582815880, now seen corresponding path program 2 times [2021-10-28 23:01:24,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:01:24,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098293862] [2021-10-28 23:01:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:01:24,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:01:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:01:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:01:25,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:01:25,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098293862] [2021-10-28 23:01:25,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098293862] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:01:25,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:01:25,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:01:25,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729121918] [2021-10-28 23:01:25,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:01:25,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:01:25,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:01:25,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:01:25,220 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 142 [2021-10-28 23:01:25,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 273 flow. Second operand has 9 states, 9 states have (on average 102.88888888888889) internal successors, (926), 9 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:25,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:01:25,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 142 [2021-10-28 23:01:25,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:01:25,454 INFO L129 PetriNetUnfolder]: 72/314 cut-off events. [2021-10-28 23:01:25,454 INFO L130 PetriNetUnfolder]: For 57/68 co-relation queries the response was YES. [2021-10-28 23:01:25,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 314 events. 72/314 cut-off events. For 57/68 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1184 event pairs, 9 based on Foata normal form. 7/302 useless extension candidates. Maximal degree in co-relation 403. Up to 67 conditions per place. [2021-10-28 23:01:25,459 INFO L132 encePairwiseOnDemand]: 131/142 looper letters, 41 selfloop transitions, 13 changer transitions 0/142 dead transitions. [2021-10-28 23:01:25,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 142 transitions, 432 flow [2021-10-28 23:01:25,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:01:25,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 23:01:25,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1054 transitions. [2021-10-28 23:01:25,464 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7422535211267606 [2021-10-28 23:01:25,465 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1054 transitions. [2021-10-28 23:01:25,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1054 transitions. [2021-10-28 23:01:25,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:01:25,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1054 transitions. [2021-10-28 23:01:25,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 105.4) internal successors, (1054), 10 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:25,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:25,475 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:25,475 INFO L186 Difference]: Start difference. First operand has 129 places, 121 transitions, 273 flow. Second operand 10 states and 1054 transitions. [2021-10-28 23:01:25,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 142 transitions, 432 flow [2021-10-28 23:01:25,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 142 transitions, 428 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:01:25,481 INFO L242 Difference]: Finished difference. Result has 137 places, 127 transitions, 338 flow [2021-10-28 23:01:25,482 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=338, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2021-10-28 23:01:25,483 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, 9 predicate places. [2021-10-28 23:01:25,483 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 338 flow [2021-10-28 23:01:25,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 102.88888888888889) internal successors, (926), 9 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:25,484 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:01:25,484 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] [2021-10-28 23:01:25,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:01:25,485 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:01:25,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:01:25,486 INFO L85 PathProgramCache]: Analyzing trace with hash 598896823, now seen corresponding path program 1 times [2021-10-28 23:01:25,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:01:25,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494815700] [2021-10-28 23:01:25,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:01:25,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:01:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:01:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:01:25,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:01:25,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494815700] [2021-10-28 23:01:25,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494815700] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:01:25,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:01:25,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:01:25,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517738049] [2021-10-28 23:01:25,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:01:25,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:01:25,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:01:25,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:01:25,688 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 142 [2021-10-28 23:01:25,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:25,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:01:25,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 142 [2021-10-28 23:01:25,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:01:25,724 INFO L129 PetriNetUnfolder]: 13/161 cut-off events. [2021-10-28 23:01:25,725 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2021-10-28 23:01:25,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 161 events. 13/161 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 239 event pairs, 0 based on Foata normal form. 2/157 useless extension candidates. Maximal degree in co-relation 198. Up to 16 conditions per place. [2021-10-28 23:01:25,727 INFO L132 encePairwiseOnDemand]: 137/142 looper letters, 6 selfloop transitions, 4 changer transitions 0/128 dead transitions. [2021-10-28 23:01:25,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 128 transitions, 360 flow [2021-10-28 23:01:25,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:01:25,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 23:01:25,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2021-10-28 23:01:25,729 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9061032863849765 [2021-10-28 23:01:25,729 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2021-10-28 23:01:25,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2021-10-28 23:01:25,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:01:25,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2021-10-28 23:01:25,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:25,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:25,733 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:25,734 INFO L186 Difference]: Start difference. First operand has 137 places, 127 transitions, 338 flow. Second operand 3 states and 386 transitions. [2021-10-28 23:01:25,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 128 transitions, 360 flow [2021-10-28 23:01:25,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 128 transitions, 347 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-10-28 23:01:25,740 INFO L242 Difference]: Finished difference. Result has 136 places, 128 transitions, 343 flow [2021-10-28 23:01:25,740 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=136, PETRI_TRANSITIONS=128} [2021-10-28 23:01:25,741 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, 8 predicate places. [2021-10-28 23:01:25,741 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 128 transitions, 343 flow [2021-10-28 23:01:25,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:25,742 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:01:25,742 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] [2021-10-28 23:01:25,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:01:25,742 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:01:25,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:01:25,743 INFO L85 PathProgramCache]: Analyzing trace with hash 907995908, now seen corresponding path program 1 times [2021-10-28 23:01:25,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:01:25,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903776519] [2021-10-28 23:01:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:01:25,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:01:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:01:25,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:01:25,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:01:25,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903776519] [2021-10-28 23:01:25,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903776519] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:01:25,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:01:25,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:01:25,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989241189] [2021-10-28 23:01:25,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:01:25,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:01:25,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:01:25,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:01:25,884 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 142 [2021-10-28 23:01:25,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 128 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:25,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:01:25,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 142 [2021-10-28 23:01:25,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:01:25,990 INFO L129 PetriNetUnfolder]: 14/217 cut-off events. [2021-10-28 23:01:25,990 INFO L130 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2021-10-28 23:01:25,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 217 events. 14/217 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 466 event pairs, 0 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 284. Up to 22 conditions per place. [2021-10-28 23:01:25,993 INFO L132 encePairwiseOnDemand]: 134/142 looper letters, 15 selfloop transitions, 6 changer transitions 1/133 dead transitions. [2021-10-28 23:01:25,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 133 transitions, 397 flow [2021-10-28 23:01:25,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:01:25,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:01:25,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 848 transitions. [2021-10-28 23:01:25,996 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8531187122736419 [2021-10-28 23:01:25,997 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 848 transitions. [2021-10-28 23:01:25,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 848 transitions. [2021-10-28 23:01:25,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:01:25,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 848 transitions. [2021-10-28 23:01:26,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 121.14285714285714) internal successors, (848), 7 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:26,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 142.0) internal successors, (1136), 8 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:26,006 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 142.0) internal successors, (1136), 8 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:26,006 INFO L186 Difference]: Start difference. First operand has 136 places, 128 transitions, 343 flow. Second operand 7 states and 848 transitions. [2021-10-28 23:01:26,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 133 transitions, 397 flow [2021-10-28 23:01:26,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 133 transitions, 393 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:01:26,016 INFO L242 Difference]: Finished difference. Result has 143 places, 129 transitions, 361 flow [2021-10-28 23:01:26,017 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=361, PETRI_PLACES=143, PETRI_TRANSITIONS=129} [2021-10-28 23:01:26,018 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, 15 predicate places. [2021-10-28 23:01:26,018 INFO L470 AbstractCegarLoop]: Abstraction has has 143 places, 129 transitions, 361 flow [2021-10-28 23:01:26,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:26,019 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:01:26,019 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] [2021-10-28 23:01:26,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:01:26,020 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:01:26,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:01:26,020 INFO L85 PathProgramCache]: Analyzing trace with hash -247441697, now seen corresponding path program 1 times [2021-10-28 23:01:26,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:01:26,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226734838] [2021-10-28 23:01:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:01:26,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:01:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:01:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:01:26,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:01:26,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226734838] [2021-10-28 23:01:26,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226734838] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:01:26,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:01:26,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:01:26,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934101854] [2021-10-28 23:01:26,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:01:26,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:01:26,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:01:26,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:01:26,215 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 142 [2021-10-28 23:01:26,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 129 transitions, 361 flow. Second operand has 6 states, 6 states have (on average 109.16666666666667) internal successors, (655), 6 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:26,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:01:26,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 142 [2021-10-28 23:01:26,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:01:26,251 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-10-28 23:01:26,252 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 23:01:26,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 46 events. 0/46 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-10-28 23:01:26,252 INFO L132 encePairwiseOnDemand]: 137/142 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2021-10-28 23:01:26,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 46 transitions, 139 flow [2021-10-28 23:01:26,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:01:26,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 23:01:26,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 643 transitions. [2021-10-28 23:01:26,256 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7546948356807511 [2021-10-28 23:01:26,256 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 643 transitions. [2021-10-28 23:01:26,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 643 transitions. [2021-10-28 23:01:26,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:01:26,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 643 transitions. [2021-10-28 23:01:26,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.16666666666667) internal successors, (643), 6 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:26,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:26,261 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:26,264 INFO L186 Difference]: Start difference. First operand has 143 places, 129 transitions, 361 flow. Second operand 6 states and 643 transitions. [2021-10-28 23:01:26,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 46 transitions, 139 flow [2021-10-28 23:01:26,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 46 transitions, 118 flow, removed 0 selfloop flow, removed 10 redundant places. [2021-10-28 23:01:26,266 INFO L242 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2021-10-28 23:01:26,266 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2021-10-28 23:01:26,266 INFO L334 CegarLoopForPetriNet]: 128 programPoint places, -68 predicate places. [2021-10-28 23:01:26,266 INFO L470 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2021-10-28 23:01:26,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.16666666666667) internal successors, (655), 6 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:01:26,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:01:26,272 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:01:26,273 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 23:01:26,273 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 23:01:26,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:01:26,276 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2021-10-28 23:01:26,288 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:01:26,289 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:01:26,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:01:26 BasicIcfg [2021-10-28 23:01:26,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:01:26,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:01:26,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:01:26,293 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:01:26,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:01:23" (3/4) ... [2021-10-28 23:01:26,296 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:01:26,301 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 23:01:26,302 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 23:01:26,302 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-28 23:01:26,308 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-28 23:01:26,309 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:01:26,309 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:01:26,309 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:01:26,376 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:01:26,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:01:26,380 INFO L168 Benchmark]: Toolchain (without parser) took 3588.73 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 61.2 MB in the beginning and 39.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:01:26,382 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 92.3 MB. Free memory was 50.8 MB in the beginning and 50.7 MB in the end (delta: 40.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:01:26,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.29 ms. Allocated memory is still 92.3 MB. Free memory was 61.0 MB in the beginning and 68.5 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:01:26,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.62 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 66.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:01:26,384 INFO L168 Benchmark]: Boogie Preprocessor took 62.56 ms. Allocated memory is still 92.3 MB. Free memory was 66.4 MB in the beginning and 65.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:01:26,384 INFO L168 Benchmark]: RCFGBuilder took 705.44 ms. Allocated memory is still 92.3 MB. Free memory was 65.1 MB in the beginning and 45.4 MB in the end (delta: 19.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:01:26,385 INFO L168 Benchmark]: TraceAbstraction took 2307.56 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 45.0 MB in the beginning and 43.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:01:26,386 INFO L168 Benchmark]: Witness Printer took 84.12 ms. Allocated memory is still 111.1 MB. Free memory was 42.5 MB in the beginning and 39.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:01:26,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 92.3 MB. Free memory was 50.8 MB in the beginning and 50.7 MB in the end (delta: 40.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 347.29 ms. Allocated memory is still 92.3 MB. Free memory was 61.0 MB in the beginning and 68.5 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.62 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 66.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.56 ms. Allocated memory is still 92.3 MB. Free memory was 66.4 MB in the beginning and 65.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 705.44 ms. Allocated memory is still 92.3 MB. Free memory was 65.1 MB in the beginning and 45.4 MB in the end (delta: 19.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2307.56 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 45.0 MB in the beginning and 43.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * Witness Printer took 84.12 ms. Allocated memory is still 111.1 MB. Free memory was 42.5 MB in the beginning and 39.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 116]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 159 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 99 SDslu, 74 SDs, 0 SdLazy, 177 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=361occurred in iteration=4, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 523 ConstructedInterpolants, 0 QuantifiedInterpolants, 1511 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:01:26,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fd8e241-8453-4d16-be66-ceef2b6b0945/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...