./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY --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 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:02:23,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:02:23,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:02:23,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:02:23,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:02:23,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:02:23,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:02:23,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:02:23,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:02:23,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:02:23,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:02:23,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:02:23,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:02:23,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:02:23,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:02:23,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:02:23,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:02:23,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:02:23,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:02:23,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:02:23,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:02:23,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:02:23,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:02:23,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:02:23,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:02:23,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:02:23,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:02:23,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:02:23,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:02:23,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:02:23,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:02:23,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:02:23,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:02:23,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:02:23,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:02:23,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:02:23,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:02:23,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:02:23,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:02:23,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:02:23,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:02:23,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 08:02:24,031 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:02:24,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:02:24,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:02:24,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:02:24,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:02:24,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:02:24,044 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:02:24,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:02:24,045 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:02:24,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:02:24,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:02:24,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:02:24,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:02:24,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:02:24,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:02:24,048 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:02:24,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:02:24,048 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:02:24,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:02:24,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:02:24,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:02:24,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:02:24,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:02:24,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:02:24,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:02:24,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:02:24,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:02:24,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:02:24,052 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:02:24,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:02:24,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:02:24,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:02:24,055 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_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1821be0ec0c098ba0cd2fb39edc7421f58889218b21285544a5e01e847e429e6 [2021-11-07 08:02:24,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:02:24,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:02:24,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:02:24,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:02:24,428 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:02:24,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i [2021-11-07 08:02:24,504 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/data/ca7590f00/5c27bc700e034d79b63c8deb5fa17f26/FLAG7efc7d8f6 [2021-11-07 08:02:25,143 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:02:25,144 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i [2021-11-07 08:02:25,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/data/ca7590f00/5c27bc700e034d79b63c8deb5fa17f26/FLAG7efc7d8f6 [2021-11-07 08:02:25,399 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/data/ca7590f00/5c27bc700e034d79b63c8deb5fa17f26 [2021-11-07 08:02:25,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:02:25,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:02:25,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:02:25,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:02:25,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:02:25,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:02:25" (1/1) ... [2021-11-07 08:02:25,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a86848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:25, skipping insertion in model container [2021-11-07 08:02:25,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:02:25" (1/1) ... [2021-11-07 08:02:25,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:02:25,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:02:25,706 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_d8f6bce8-a018-4a42-9d70-27e69c9fe016/sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i[949,962] [2021-11-07 08:02:25,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:02:26,008 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:02:26,036 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_d8f6bce8-a018-4a42-9d70-27e69c9fe016/sv-benchmarks/c/pthread-wmm/mix021_tso.oepc.i[949,962] [2021-11-07 08:02:26,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:02:26,205 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:02:26,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26 WrapperNode [2021-11-07 08:02:26,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:02:26,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:02:26,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:02:26,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:02:26,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26" (1/1) ... [2021-11-07 08:02:26,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26" (1/1) ... [2021-11-07 08:02:26,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:02:26,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:02:26,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:02:26,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:02:26,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26" (1/1) ... [2021-11-07 08:02:26,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26" (1/1) ... [2021-11-07 08:02:26,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26" (1/1) ... [2021-11-07 08:02:26,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26" (1/1) ... [2021-11-07 08:02:26,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26" (1/1) ... [2021-11-07 08:02:26,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26" (1/1) ... [2021-11-07 08:02:26,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26" (1/1) ... [2021-11-07 08:02:26,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:02:26,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:02:26,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:02:26,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:02:26,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26" (1/1) ... [2021-11-07 08:02:26,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:02:26,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:02:26,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:02:26,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:02:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:02:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-07 08:02:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:02:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:02:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-07 08:02:26,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-07 08:02:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-07 08:02:26,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-07 08:02:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-07 08:02:26,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-07 08:02:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-11-07 08:02:26,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-11-07 08:02:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:02:26,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-07 08:02:26,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:02:26,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:02:26,500 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 08:02:28,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:02:28,700 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-07 08:02:28,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:02:28 BoogieIcfgContainer [2021-11-07 08:02:28,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:02:28,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:02:28,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:02:28,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:02:28,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:02:25" (1/3) ... [2021-11-07 08:02:28,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508719e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:02:28, skipping insertion in model container [2021-11-07 08:02:28,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:02:26" (2/3) ... [2021-11-07 08:02:28,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508719e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:02:28, skipping insertion in model container [2021-11-07 08:02:28,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:02:28" (3/3) ... [2021-11-07 08:02:28,712 INFO L111 eAbstractionObserver]: Analyzing ICFG mix021_tso.oepc.i [2021-11-07 08:02:28,718 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 08:02:28,719 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:02:28,719 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-07 08:02:28,719 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 08:02:28,758 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,759 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,759 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,759 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,759 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,760 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,760 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,760 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,760 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,760 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,761 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,761 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,761 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,761 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,761 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,762 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,762 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,762 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,762 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,762 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,763 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,763 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,763 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,763 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,763 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,763 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,764 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,764 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,764 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,764 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,764 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,765 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,765 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,765 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,766 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,766 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,766 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,766 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,766 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,767 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,767 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,767 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,767 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,767 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,767 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,768 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,768 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,768 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,768 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,768 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,769 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,769 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,769 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,769 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,770 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,770 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,770 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,770 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,770 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,770 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,771 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,771 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,771 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,771 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,772 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,772 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,772 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,772 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,773 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,773 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,773 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,773 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,773 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,774 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,774 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,774 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,774 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,774 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,774 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,775 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,775 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,775 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,775 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,775 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,776 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,776 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,776 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,776 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,777 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,777 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,777 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,777 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,777 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,777 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,778 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,778 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,778 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,778 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,782 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,782 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,782 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,782 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,783 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,783 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,783 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,783 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,783 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,784 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,786 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,786 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,786 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,786 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,787 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,787 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,787 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,787 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,787 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,788 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,789 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,789 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,790 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,790 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,790 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,790 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,790 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,791 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,791 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,791 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,791 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,791 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,793 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,793 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,794 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,794 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:02:28,795 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-07 08:02:28,853 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:02:28,860 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 [2021-11-07 08:02:28,861 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-07 08:02:28,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 128 transitions, 276 flow [2021-11-07 08:02:28,938 INFO L129 PetriNetUnfolder]: 2/124 cut-off events. [2021-11-07 08:02:28,938 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 08:02:28,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 124 events. 2/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2021-11-07 08:02:28,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 128 transitions, 276 flow [2021-11-07 08:02:28,950 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 124 transitions, 260 flow [2021-11-07 08:02:28,969 INFO L129 PetriNetUnfolder]: 0/73 cut-off events. [2021-11-07 08:02:28,969 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 08:02:28,969 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:28,970 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] [2021-11-07 08:02:28,970 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:28,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:28,977 INFO L85 PathProgramCache]: Analyzing trace with hash 517386817, now seen corresponding path program 1 times [2021-11-07 08:02:29,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:29,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739706960] [2021-11-07 08:02:29,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:29,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:29,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:29,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739706960] [2021-11-07 08:02:29,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739706960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:29,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:29,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:02:29,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624275452] [2021-11-07 08:02:29,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:02:29,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:29,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:02:29,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:02:29,504 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 128 [2021-11-07 08:02:29,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 124 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2021-11-07 08:02:29,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:29,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 128 [2021-11-07 08:02:29,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:29,688 INFO L129 PetriNetUnfolder]: 49/305 cut-off events. [2021-11-07 08:02:29,689 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 08:02:29,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 305 events. 49/305 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1158 event pairs, 9 based on Foata normal form. 14/303 useless extension candidates. Maximal degree in co-relation 351. Up to 65 conditions per place. [2021-11-07 08:02:29,697 INFO L132 encePairwiseOnDemand]: 123/128 looper letters, 9 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2021-11-07 08:02:29,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 124 transitions, 282 flow [2021-11-07 08:02:29,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:02:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-07 08:02:29,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-11-07 08:02:29,716 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9557291666666666 [2021-11-07 08:02:29,717 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-11-07 08:02:29,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-11-07 08:02:29,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:29,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-11-07 08:02:29,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2021-11-07 08:02:29,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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) [2021-11-07 08:02:29,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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) [2021-11-07 08:02:29,740 INFO L186 Difference]: Start difference. First operand has 135 places, 124 transitions, 260 flow. Second operand 3 states and 367 transitions. [2021-11-07 08:02:29,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 124 transitions, 282 flow [2021-11-07 08:02:29,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 124 transitions, 278 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-07 08:02:29,751 INFO L242 Difference]: Finished difference. Result has 131 places, 120 transitions, 252 flow [2021-11-07 08:02:29,754 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=131, PETRI_TRANSITIONS=120} [2021-11-07 08:02:29,755 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, -4 predicate places. [2021-11-07 08:02:29,755 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 120 transitions, 252 flow [2021-11-07 08:02:29,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2021-11-07 08:02:29,756 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:29,757 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] [2021-11-07 08:02:29,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:02:29,758 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:29,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:29,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2022615872, now seen corresponding path program 1 times [2021-11-07 08:02:29,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:29,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130519929] [2021-11-07 08:02:29,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:29,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:30,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:30,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130519929] [2021-11-07 08:02:30,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130519929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:30,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:30,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:02:30,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92488129] [2021-11-07 08:02:30,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:02:30,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:30,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:02:30,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:02:30,166 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 128 [2021-11-07 08:02:30,168 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 120 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 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) [2021-11-07 08:02:30,168 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:30,168 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 128 [2021-11-07 08:02:30,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:30,381 INFO L129 PetriNetUnfolder]: 30/274 cut-off events. [2021-11-07 08:02:30,381 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 08:02:30,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 274 events. 30/274 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 920 event pairs, 6 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 315. Up to 36 conditions per place. [2021-11-07 08:02:30,385 INFO L132 encePairwiseOnDemand]: 121/128 looper letters, 8 selfloop transitions, 3 changer transitions 33/143 dead transitions. [2021-11-07 08:02:30,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 143 transitions, 364 flow [2021-11-07 08:02:30,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 08:02:30,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-07 08:02:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1070 transitions. [2021-11-07 08:02:30,393 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9288194444444444 [2021-11-07 08:02:30,393 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1070 transitions. [2021-11-07 08:02:30,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1070 transitions. [2021-11-07 08:02:30,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:30,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1070 transitions. [2021-11-07 08:02:30,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.88888888888889) internal successors, (1070), 9 states have internal predecessors, (1070), 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) [2021-11-07 08:02:30,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-11-07 08:02:30,406 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-11-07 08:02:30,406 INFO L186 Difference]: Start difference. First operand has 131 places, 120 transitions, 252 flow. Second operand 9 states and 1070 transitions. [2021-11-07 08:02:30,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 143 transitions, 364 flow [2021-11-07 08:02:30,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 143 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-07 08:02:30,413 INFO L242 Difference]: Finished difference. Result has 144 places, 110 transitions, 267 flow [2021-11-07 08:02:30,413 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=267, PETRI_PLACES=144, PETRI_TRANSITIONS=110} [2021-11-07 08:02:30,414 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 9 predicate places. [2021-11-07 08:02:30,414 INFO L470 AbstractCegarLoop]: Abstraction has has 144 places, 110 transitions, 267 flow [2021-11-07 08:02:30,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 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) [2021-11-07 08:02:30,415 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:30,415 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] [2021-11-07 08:02:30,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:02:30,416 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:30,417 INFO L85 PathProgramCache]: Analyzing trace with hash -361338143, now seen corresponding path program 1 times [2021-11-07 08:02:30,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:30,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123245140] [2021-11-07 08:02:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:30,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:30,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:30,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:30,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123245140] [2021-11-07 08:02:30,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123245140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:30,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:30,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:02:30,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320760802] [2021-11-07 08:02:30,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:02:30,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:30,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:02:30,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:02:30,724 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 128 [2021-11-07 08:02:30,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 110 transitions, 267 flow. Second operand has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 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) [2021-11-07 08:02:30,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:30,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 128 [2021-11-07 08:02:30,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:30,921 INFO L129 PetriNetUnfolder]: 28/212 cut-off events. [2021-11-07 08:02:30,921 INFO L130 PetriNetUnfolder]: For 171/172 co-relation queries the response was YES. [2021-11-07 08:02:30,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 212 events. 28/212 cut-off events. For 171/172 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 590 event pairs, 9 based on Foata normal form. 6/212 useless extension candidates. Maximal degree in co-relation 380. Up to 31 conditions per place. [2021-11-07 08:02:30,926 INFO L132 encePairwiseOnDemand]: 122/128 looper letters, 6 selfloop transitions, 2 changer transitions 10/120 dead transitions. [2021-11-07 08:02:30,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 120 transitions, 341 flow [2021-11-07 08:02:30,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 08:02:30,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-07 08:02:30,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1064 transitions. [2021-11-07 08:02:30,932 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9236111111111112 [2021-11-07 08:02:30,932 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1064 transitions. [2021-11-07 08:02:30,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1064 transitions. [2021-11-07 08:02:30,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:30,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1064 transitions. [2021-11-07 08:02:30,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.22222222222223) internal successors, (1064), 9 states have internal predecessors, (1064), 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) [2021-11-07 08:02:30,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-11-07 08:02:30,945 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-11-07 08:02:30,945 INFO L186 Difference]: Start difference. First operand has 144 places, 110 transitions, 267 flow. Second operand 9 states and 1064 transitions. [2021-11-07 08:02:30,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 120 transitions, 341 flow [2021-11-07 08:02:30,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 120 transitions, 324 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-11-07 08:02:30,960 INFO L242 Difference]: Finished difference. Result has 137 places, 110 transitions, 278 flow [2021-11-07 08:02:30,961 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=278, PETRI_PLACES=137, PETRI_TRANSITIONS=110} [2021-11-07 08:02:30,961 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 2 predicate places. [2021-11-07 08:02:30,962 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 110 transitions, 278 flow [2021-11-07 08:02:30,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 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) [2021-11-07 08:02:30,963 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:30,964 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] [2021-11-07 08:02:30,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:02:30,965 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:30,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:30,965 INFO L85 PathProgramCache]: Analyzing trace with hash 673680306, now seen corresponding path program 1 times [2021-11-07 08:02:30,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:30,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80525648] [2021-11-07 08:02:30,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:30,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:31,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:31,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80525648] [2021-11-07 08:02:31,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80525648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:31,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:31,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 08:02:31,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419909446] [2021-11-07 08:02:31,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:31,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:31,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:31,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:31,342 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 128 [2021-11-07 08:02:31,344 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 110 transitions, 278 flow. Second operand has 9 states, 9 states have (on average 109.11111111111111) internal successors, (982), 9 states have internal predecessors, (982), 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) [2021-11-07 08:02:31,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:31,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 128 [2021-11-07 08:02:31,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:32,227 INFO L129 PetriNetUnfolder]: 800/1569 cut-off events. [2021-11-07 08:02:32,227 INFO L130 PetriNetUnfolder]: For 1877/1882 co-relation queries the response was YES. [2021-11-07 08:02:32,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3948 conditions, 1569 events. 800/1569 cut-off events. For 1877/1882 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 9766 event pairs, 339 based on Foata normal form. 42/1543 useless extension candidates. Maximal degree in co-relation 3882. Up to 669 conditions per place. [2021-11-07 08:02:32,296 INFO L132 encePairwiseOnDemand]: 116/128 looper letters, 13 selfloop transitions, 11 changer transitions 43/162 dead transitions. [2021-11-07 08:02:32,296 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 162 transitions, 560 flow [2021-11-07 08:02:32,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 08:02:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-07 08:02:32,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1582 transitions. [2021-11-07 08:02:32,312 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8828125 [2021-11-07 08:02:32,312 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1582 transitions. [2021-11-07 08:02:32,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1582 transitions. [2021-11-07 08:02:32,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:32,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1582 transitions. [2021-11-07 08:02:32,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 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) [2021-11-07 08:02:32,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-11-07 08:02:32,330 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-11-07 08:02:32,332 INFO L186 Difference]: Start difference. First operand has 137 places, 110 transitions, 278 flow. Second operand 14 states and 1582 transitions. [2021-11-07 08:02:32,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 162 transitions, 560 flow [2021-11-07 08:02:32,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 162 transitions, 520 flow, removed 18 selfloop flow, removed 8 redundant places. [2021-11-07 08:02:32,356 INFO L242 Difference]: Finished difference. Result has 147 places, 118 transitions, 360 flow [2021-11-07 08:02:32,357 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=360, PETRI_PLACES=147, PETRI_TRANSITIONS=118} [2021-11-07 08:02:32,358 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 12 predicate places. [2021-11-07 08:02:32,358 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 118 transitions, 360 flow [2021-11-07 08:02:32,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 109.11111111111111) internal successors, (982), 9 states have internal predecessors, (982), 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) [2021-11-07 08:02:32,359 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:32,366 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:02:32,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 08:02:32,367 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:32,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:32,368 INFO L85 PathProgramCache]: Analyzing trace with hash 914579007, now seen corresponding path program 1 times [2021-11-07 08:02:32,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:32,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604197714] [2021-11-07 08:02:32,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:32,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:32,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:32,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604197714] [2021-11-07 08:02:32,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604197714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:32,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:32,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 08:02:32,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963482431] [2021-11-07 08:02:32,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 08:02:32,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:32,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 08:02:32,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:02:32,772 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 128 [2021-11-07 08:02:32,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 118 transitions, 360 flow. Second operand has 10 states, 10 states have (on average 108.2) internal successors, (1082), 10 states have internal predecessors, (1082), 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) [2021-11-07 08:02:32,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:32,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 128 [2021-11-07 08:02:32,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:33,645 INFO L129 PetriNetUnfolder]: 607/1253 cut-off events. [2021-11-07 08:02:33,645 INFO L130 PetriNetUnfolder]: For 3866/4055 co-relation queries the response was YES. [2021-11-07 08:02:33,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4407 conditions, 1253 events. 607/1253 cut-off events. For 3866/4055 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 7566 event pairs, 90 based on Foata normal form. 33/1233 useless extension candidates. Maximal degree in co-relation 4332. Up to 513 conditions per place. [2021-11-07 08:02:33,675 INFO L132 encePairwiseOnDemand]: 119/128 looper letters, 31 selfloop transitions, 8 changer transitions 25/158 dead transitions. [2021-11-07 08:02:33,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 158 transitions, 740 flow [2021-11-07 08:02:33,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 08:02:33,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-07 08:02:33,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1343 transitions. [2021-11-07 08:02:33,682 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8743489583333334 [2021-11-07 08:02:33,683 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1343 transitions. [2021-11-07 08:02:33,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1343 transitions. [2021-11-07 08:02:33,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:33,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1343 transitions. [2021-11-07 08:02:33,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 111.91666666666667) internal successors, (1343), 12 states have internal predecessors, (1343), 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) [2021-11-07 08:02:33,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 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) [2021-11-07 08:02:33,696 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 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) [2021-11-07 08:02:33,697 INFO L186 Difference]: Start difference. First operand has 147 places, 118 transitions, 360 flow. Second operand 12 states and 1343 transitions. [2021-11-07 08:02:33,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 158 transitions, 740 flow [2021-11-07 08:02:33,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 158 transitions, 712 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-11-07 08:02:33,713 INFO L242 Difference]: Finished difference. Result has 153 places, 120 transitions, 406 flow [2021-11-07 08:02:33,714 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=406, PETRI_PLACES=153, PETRI_TRANSITIONS=120} [2021-11-07 08:02:33,714 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 18 predicate places. [2021-11-07 08:02:33,714 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 120 transitions, 406 flow [2021-11-07 08:02:33,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 108.2) internal successors, (1082), 10 states have internal predecessors, (1082), 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) [2021-11-07 08:02:33,715 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:33,716 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] [2021-11-07 08:02:33,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 08:02:33,716 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:33,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:33,717 INFO L85 PathProgramCache]: Analyzing trace with hash 500492630, now seen corresponding path program 1 times [2021-11-07 08:02:33,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:33,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505042635] [2021-11-07 08:02:33,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:33,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:34,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:34,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:34,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505042635] [2021-11-07 08:02:34,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505042635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:34,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:34,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 08:02:34,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507811091] [2021-11-07 08:02:34,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 08:02:34,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:34,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 08:02:34,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:02:34,183 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 128 [2021-11-07 08:02:34,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 120 transitions, 406 flow. Second operand has 10 states, 10 states have (on average 107.3) internal successors, (1073), 10 states have internal predecessors, (1073), 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) [2021-11-07 08:02:34,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:34,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 128 [2021-11-07 08:02:34,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:35,185 INFO L129 PetriNetUnfolder]: 591/1262 cut-off events. [2021-11-07 08:02:35,186 INFO L130 PetriNetUnfolder]: For 5179/5351 co-relation queries the response was YES. [2021-11-07 08:02:35,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4753 conditions, 1262 events. 591/1262 cut-off events. For 5179/5351 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 7679 event pairs, 230 based on Foata normal form. 50/1247 useless extension candidates. Maximal degree in co-relation 4669. Up to 454 conditions per place. [2021-11-07 08:02:35,214 INFO L132 encePairwiseOnDemand]: 115/128 looper letters, 16 selfloop transitions, 15 changer transitions 42/166 dead transitions. [2021-11-07 08:02:35,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 166 transitions, 910 flow [2021-11-07 08:02:35,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 08:02:35,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-11-07 08:02:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1871 transitions. [2021-11-07 08:02:35,223 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8598345588235294 [2021-11-07 08:02:35,223 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1871 transitions. [2021-11-07 08:02:35,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1871 transitions. [2021-11-07 08:02:35,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:35,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1871 transitions. [2021-11-07 08:02:35,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 110.05882352941177) internal successors, (1871), 17 states have internal predecessors, (1871), 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) [2021-11-07 08:02:35,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 128.0) internal successors, (2304), 18 states have internal predecessors, (2304), 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) [2021-11-07 08:02:35,241 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 128.0) internal successors, (2304), 18 states have internal predecessors, (2304), 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) [2021-11-07 08:02:35,241 INFO L186 Difference]: Start difference. First operand has 153 places, 120 transitions, 406 flow. Second operand 17 states and 1871 transitions. [2021-11-07 08:02:35,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 166 transitions, 910 flow [2021-11-07 08:02:35,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 166 transitions, 836 flow, removed 30 selfloop flow, removed 9 redundant places. [2021-11-07 08:02:35,260 INFO L242 Difference]: Finished difference. Result has 165 places, 122 transitions, 480 flow [2021-11-07 08:02:35,261 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=480, PETRI_PLACES=165, PETRI_TRANSITIONS=122} [2021-11-07 08:02:35,261 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 30 predicate places. [2021-11-07 08:02:35,261 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 122 transitions, 480 flow [2021-11-07 08:02:35,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 107.3) internal successors, (1073), 10 states have internal predecessors, (1073), 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) [2021-11-07 08:02:35,262 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:35,263 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] [2021-11-07 08:02:35,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 08:02:35,263 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:35,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:35,264 INFO L85 PathProgramCache]: Analyzing trace with hash -702138755, now seen corresponding path program 1 times [2021-11-07 08:02:35,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:35,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808212558] [2021-11-07 08:02:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:35,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:35,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:35,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808212558] [2021-11-07 08:02:35,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808212558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:35,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:35,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 08:02:35,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855152045] [2021-11-07 08:02:35,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:02:35,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:35,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:02:35,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:02:35,627 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 128 [2021-11-07 08:02:35,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 122 transitions, 480 flow. Second operand has 12 states, 12 states have (on average 106.25) internal successors, (1275), 12 states have internal predecessors, (1275), 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) [2021-11-07 08:02:35,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:35,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 128 [2021-11-07 08:02:35,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:36,572 INFO L129 PetriNetUnfolder]: 471/1048 cut-off events. [2021-11-07 08:02:36,573 INFO L130 PetriNetUnfolder]: For 8102/8796 co-relation queries the response was YES. [2021-11-07 08:02:36,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4986 conditions, 1048 events. 471/1048 cut-off events. For 8102/8796 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6086 event pairs, 59 based on Foata normal form. 34/1033 useless extension candidates. Maximal degree in co-relation 4893. Up to 443 conditions per place. [2021-11-07 08:02:36,604 INFO L132 encePairwiseOnDemand]: 115/128 looper letters, 26 selfloop transitions, 15 changer transitions 25/158 dead transitions. [2021-11-07 08:02:36,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 158 transitions, 960 flow [2021-11-07 08:02:36,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 08:02:36,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-07 08:02:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1527 transitions. [2021-11-07 08:02:36,611 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8521205357142857 [2021-11-07 08:02:36,611 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1527 transitions. [2021-11-07 08:02:36,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1527 transitions. [2021-11-07 08:02:36,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:36,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1527 transitions. [2021-11-07 08:02:36,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 109.07142857142857) internal successors, (1527), 14 states have internal predecessors, (1527), 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) [2021-11-07 08:02:36,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-11-07 08:02:36,625 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-11-07 08:02:36,625 INFO L186 Difference]: Start difference. First operand has 165 places, 122 transitions, 480 flow. Second operand 14 states and 1527 transitions. [2021-11-07 08:02:36,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 158 transitions, 960 flow [2021-11-07 08:02:36,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 158 transitions, 872 flow, removed 33 selfloop flow, removed 15 redundant places. [2021-11-07 08:02:36,649 INFO L242 Difference]: Finished difference. Result has 162 places, 128 transitions, 553 flow [2021-11-07 08:02:36,650 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=553, PETRI_PLACES=162, PETRI_TRANSITIONS=128} [2021-11-07 08:02:36,650 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 27 predicate places. [2021-11-07 08:02:36,650 INFO L470 AbstractCegarLoop]: Abstraction has has 162 places, 128 transitions, 553 flow [2021-11-07 08:02:36,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.25) internal successors, (1275), 12 states have internal predecessors, (1275), 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) [2021-11-07 08:02:36,651 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:36,652 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] [2021-11-07 08:02:36,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 08:02:36,652 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:36,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:36,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2122650005, now seen corresponding path program 2 times [2021-11-07 08:02:36,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:36,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031873636] [2021-11-07 08:02:36,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:36,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:36,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:36,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031873636] [2021-11-07 08:02:36,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031873636] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:36,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:36,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 08:02:36,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372897210] [2021-11-07 08:02:36,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 08:02:36,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:36,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 08:02:36,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:02:36,990 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 128 [2021-11-07 08:02:36,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 128 transitions, 553 flow. Second operand has 10 states, 10 states have (on average 108.3) internal successors, (1083), 10 states have internal predecessors, (1083), 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) [2021-11-07 08:02:36,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:36,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 128 [2021-11-07 08:02:36,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:38,123 INFO L129 PetriNetUnfolder]: 557/1304 cut-off events. [2021-11-07 08:02:38,123 INFO L130 PetriNetUnfolder]: For 17010/19770 co-relation queries the response was YES. [2021-11-07 08:02:38,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7806 conditions, 1304 events. 557/1304 cut-off events. For 17010/19770 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8236 event pairs, 37 based on Foata normal form. 51/1299 useless extension candidates. Maximal degree in co-relation 7717. Up to 476 conditions per place. [2021-11-07 08:02:38,169 INFO L132 encePairwiseOnDemand]: 116/128 looper letters, 28 selfloop transitions, 18 changer transitions 25/165 dead transitions. [2021-11-07 08:02:38,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 1267 flow [2021-11-07 08:02:38,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 08:02:38,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-07 08:02:38,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1556 transitions. [2021-11-07 08:02:38,176 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8683035714285714 [2021-11-07 08:02:38,176 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1556 transitions. [2021-11-07 08:02:38,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1556 transitions. [2021-11-07 08:02:38,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:38,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1556 transitions. [2021-11-07 08:02:38,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 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) [2021-11-07 08:02:38,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-11-07 08:02:38,191 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-11-07 08:02:38,192 INFO L186 Difference]: Start difference. First operand has 162 places, 128 transitions, 553 flow. Second operand 14 states and 1556 transitions. [2021-11-07 08:02:38,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 1267 flow [2021-11-07 08:02:38,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 165 transitions, 1132 flow, removed 61 selfloop flow, removed 10 redundant places. [2021-11-07 08:02:38,240 INFO L242 Difference]: Finished difference. Result has 166 places, 131 transitions, 627 flow [2021-11-07 08:02:38,241 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=627, PETRI_PLACES=166, PETRI_TRANSITIONS=131} [2021-11-07 08:02:38,241 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 31 predicate places. [2021-11-07 08:02:38,241 INFO L470 AbstractCegarLoop]: Abstraction has has 166 places, 131 transitions, 627 flow [2021-11-07 08:02:38,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 108.3) internal successors, (1083), 10 states have internal predecessors, (1083), 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) [2021-11-07 08:02:38,243 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:38,243 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] [2021-11-07 08:02:38,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 08:02:38,244 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:38,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:38,244 INFO L85 PathProgramCache]: Analyzing trace with hash -40635891, now seen corresponding path program 1 times [2021-11-07 08:02:38,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:38,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365683574] [2021-11-07 08:02:38,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:38,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:38,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:38,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365683574] [2021-11-07 08:02:38,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365683574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:38,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:38,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 08:02:38,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164748424] [2021-11-07 08:02:38,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:02:38,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:38,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:02:38,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:02:38,703 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 128 [2021-11-07 08:02:38,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 131 transitions, 627 flow. Second operand has 12 states, 12 states have (on average 106.33333333333333) internal successors, (1276), 12 states have internal predecessors, (1276), 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) [2021-11-07 08:02:38,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:38,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 128 [2021-11-07 08:02:38,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:39,609 INFO L129 PetriNetUnfolder]: 461/1086 cut-off events. [2021-11-07 08:02:39,609 INFO L130 PetriNetUnfolder]: For 19683/22131 co-relation queries the response was YES. [2021-11-07 08:02:39,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7168 conditions, 1086 events. 461/1086 cut-off events. For 19683/22131 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 6441 event pairs, 67 based on Foata normal form. 38/1065 useless extension candidates. Maximal degree in co-relation 7076. Up to 538 conditions per place. [2021-11-07 08:02:39,650 INFO L132 encePairwiseOnDemand]: 115/128 looper letters, 35 selfloop transitions, 17 changer transitions 19/163 dead transitions. [2021-11-07 08:02:39,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 163 transitions, 1351 flow [2021-11-07 08:02:39,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 08:02:39,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-07 08:02:39,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1416 transitions. [2021-11-07 08:02:39,658 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8509615384615384 [2021-11-07 08:02:39,659 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1416 transitions. [2021-11-07 08:02:39,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1416 transitions. [2021-11-07 08:02:39,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:39,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1416 transitions. [2021-11-07 08:02:39,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 108.92307692307692) internal successors, (1416), 13 states have internal predecessors, (1416), 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) [2021-11-07 08:02:39,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-11-07 08:02:39,675 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-11-07 08:02:39,675 INFO L186 Difference]: Start difference. First operand has 166 places, 131 transitions, 627 flow. Second operand 13 states and 1416 transitions. [2021-11-07 08:02:39,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 163 transitions, 1351 flow [2021-11-07 08:02:39,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 163 transitions, 1135 flow, removed 98 selfloop flow, removed 12 redundant places. [2021-11-07 08:02:39,708 INFO L242 Difference]: Finished difference. Result has 168 places, 139 transitions, 725 flow [2021-11-07 08:02:39,709 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=725, PETRI_PLACES=168, PETRI_TRANSITIONS=139} [2021-11-07 08:02:39,709 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 33 predicate places. [2021-11-07 08:02:39,710 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 139 transitions, 725 flow [2021-11-07 08:02:39,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.33333333333333) internal successors, (1276), 12 states have internal predecessors, (1276), 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) [2021-11-07 08:02:39,711 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:39,711 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] [2021-11-07 08:02:39,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 08:02:39,713 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:39,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:39,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1867081149, now seen corresponding path program 2 times [2021-11-07 08:02:39,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:39,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956349108] [2021-11-07 08:02:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:39,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:40,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:40,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:40,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956349108] [2021-11-07 08:02:40,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956349108] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:40,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:40,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 08:02:40,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071745898] [2021-11-07 08:02:40,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 08:02:40,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:40,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 08:02:40,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-07 08:02:40,132 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 128 [2021-11-07 08:02:40,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 139 transitions, 725 flow. Second operand has 13 states, 13 states have (on average 105.3076923076923) internal successors, (1369), 13 states have internal predecessors, (1369), 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) [2021-11-07 08:02:40,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:40,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 128 [2021-11-07 08:02:40,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:40,816 INFO L129 PetriNetUnfolder]: 468/1100 cut-off events. [2021-11-07 08:02:40,817 INFO L130 PetriNetUnfolder]: For 18752/21646 co-relation queries the response was YES. [2021-11-07 08:02:40,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7114 conditions, 1100 events. 468/1100 cut-off events. For 18752/21646 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6414 event pairs, 84 based on Foata normal form. 52/1095 useless extension candidates. Maximal degree in co-relation 7020. Up to 566 conditions per place. [2021-11-07 08:02:40,860 INFO L132 encePairwiseOnDemand]: 115/128 looper letters, 37 selfloop transitions, 26 changer transitions 10/164 dead transitions. [2021-11-07 08:02:40,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 164 transitions, 1333 flow [2021-11-07 08:02:40,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 08:02:40,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-07 08:02:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1186 transitions. [2021-11-07 08:02:40,863 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8423295454545454 [2021-11-07 08:02:40,863 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1186 transitions. [2021-11-07 08:02:40,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1186 transitions. [2021-11-07 08:02:40,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:40,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1186 transitions. [2021-11-07 08:02:40,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 107.81818181818181) internal successors, (1186), 11 states have internal predecessors, (1186), 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) [2021-11-07 08:02:40,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 128.0) internal successors, (1536), 12 states have internal predecessors, (1536), 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) [2021-11-07 08:02:40,873 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 128.0) internal successors, (1536), 12 states have internal predecessors, (1536), 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) [2021-11-07 08:02:40,874 INFO L186 Difference]: Start difference. First operand has 168 places, 139 transitions, 725 flow. Second operand 11 states and 1186 transitions. [2021-11-07 08:02:40,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 164 transitions, 1333 flow [2021-11-07 08:02:40,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 164 transitions, 1163 flow, removed 76 selfloop flow, removed 9 redundant places. [2021-11-07 08:02:40,915 INFO L242 Difference]: Finished difference. Result has 167 places, 150 transitions, 904 flow [2021-11-07 08:02:40,916 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=904, PETRI_PLACES=167, PETRI_TRANSITIONS=150} [2021-11-07 08:02:40,916 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 32 predicate places. [2021-11-07 08:02:40,917 INFO L470 AbstractCegarLoop]: Abstraction has has 167 places, 150 transitions, 904 flow [2021-11-07 08:02:40,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 105.3076923076923) internal successors, (1369), 13 states have internal predecessors, (1369), 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) [2021-11-07 08:02:40,935 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:40,936 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] [2021-11-07 08:02:40,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 08:02:40,936 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:40,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:40,937 INFO L85 PathProgramCache]: Analyzing trace with hash 305586495, now seen corresponding path program 3 times [2021-11-07 08:02:40,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:40,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170674165] [2021-11-07 08:02:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:40,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:41,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:41,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:41,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170674165] [2021-11-07 08:02:41,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170674165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:41,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:41,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 08:02:41,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905363184] [2021-11-07 08:02:41,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:02:41,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:41,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:02:41,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:02:41,373 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 128 [2021-11-07 08:02:41,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 150 transitions, 904 flow. Second operand has 12 states, 12 states have (on average 104.5) internal successors, (1254), 12 states have internal predecessors, (1254), 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) [2021-11-07 08:02:41,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:41,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 128 [2021-11-07 08:02:41,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:42,271 INFO L129 PetriNetUnfolder]: 477/1329 cut-off events. [2021-11-07 08:02:42,272 INFO L130 PetriNetUnfolder]: For 17067/22847 co-relation queries the response was YES. [2021-11-07 08:02:42,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7534 conditions, 1329 events. 477/1329 cut-off events. For 17067/22847 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 9089 event pairs, 64 based on Foata normal form. 58/1327 useless extension candidates. Maximal degree in co-relation 7439. Up to 472 conditions per place. [2021-11-07 08:02:42,325 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 56 selfloop transitions, 16 changer transitions 19/181 dead transitions. [2021-11-07 08:02:42,326 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 181 transitions, 1617 flow [2021-11-07 08:02:42,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 08:02:42,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-07 08:02:42,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1392 transitions. [2021-11-07 08:02:42,332 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8365384615384616 [2021-11-07 08:02:42,332 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1392 transitions. [2021-11-07 08:02:42,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1392 transitions. [2021-11-07 08:02:42,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:42,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1392 transitions. [2021-11-07 08:02:42,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 107.07692307692308) internal successors, (1392), 13 states have internal predecessors, (1392), 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) [2021-11-07 08:02:42,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-11-07 08:02:42,343 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-11-07 08:02:42,343 INFO L186 Difference]: Start difference. First operand has 167 places, 150 transitions, 904 flow. Second operand 13 states and 1392 transitions. [2021-11-07 08:02:42,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 181 transitions, 1617 flow [2021-11-07 08:02:42,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 181 transitions, 1502 flow, removed 55 selfloop flow, removed 6 redundant places. [2021-11-07 08:02:42,393 INFO L242 Difference]: Finished difference. Result has 177 places, 154 transitions, 970 flow [2021-11-07 08:02:42,393 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=970, PETRI_PLACES=177, PETRI_TRANSITIONS=154} [2021-11-07 08:02:42,394 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 42 predicate places. [2021-11-07 08:02:42,394 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 154 transitions, 970 flow [2021-11-07 08:02:42,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.5) internal successors, (1254), 12 states have internal predecessors, (1254), 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) [2021-11-07 08:02:42,395 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:42,395 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] [2021-11-07 08:02:42,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 08:02:42,395 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:42,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:42,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2099783087, now seen corresponding path program 1 times [2021-11-07 08:02:42,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:42,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121929439] [2021-11-07 08:02:42,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:42,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:42,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:42,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121929439] [2021-11-07 08:02:42,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121929439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:42,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:42,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:02:42,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023107786] [2021-11-07 08:02:42,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:02:42,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:42,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:02:42,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:02:42,532 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 128 [2021-11-07 08:02:42,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 154 transitions, 970 flow. Second operand has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 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) [2021-11-07 08:02:42,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:42,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 128 [2021-11-07 08:02:42,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:43,915 INFO L129 PetriNetUnfolder]: 2680/5681 cut-off events. [2021-11-07 08:02:43,916 INFO L130 PetriNetUnfolder]: For 39025/40949 co-relation queries the response was YES. [2021-11-07 08:02:43,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20039 conditions, 5681 events. 2680/5681 cut-off events. For 39025/40949 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 52296 event pairs, 304 based on Foata normal form. 53/5035 useless extension candidates. Maximal degree in co-relation 19946. Up to 1365 conditions per place. [2021-11-07 08:02:44,060 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 29 selfloop transitions, 20 changer transitions 0/191 dead transitions. [2021-11-07 08:02:44,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 191 transitions, 1142 flow [2021-11-07 08:02:44,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 08:02:44,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-07 08:02:44,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1181 transitions. [2021-11-07 08:02:44,063 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.92265625 [2021-11-07 08:02:44,063 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1181 transitions. [2021-11-07 08:02:44,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1181 transitions. [2021-11-07 08:02:44,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:44,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1181 transitions. [2021-11-07 08:02:44,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 118.1) internal successors, (1181), 10 states have internal predecessors, (1181), 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) [2021-11-07 08:02:44,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2021-11-07 08:02:44,071 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 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) [2021-11-07 08:02:44,071 INFO L186 Difference]: Start difference. First operand has 177 places, 154 transitions, 970 flow. Second operand 10 states and 1181 transitions. [2021-11-07 08:02:44,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 191 transitions, 1142 flow [2021-11-07 08:02:44,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 191 transitions, 1088 flow, removed 21 selfloop flow, removed 10 redundant places. [2021-11-07 08:02:44,149 INFO L242 Difference]: Finished difference. Result has 176 places, 172 transitions, 1059 flow [2021-11-07 08:02:44,149 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1059, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2021-11-07 08:02:44,150 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 41 predicate places. [2021-11-07 08:02:44,150 INFO L470 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 1059 flow [2021-11-07 08:02:44,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.16666666666667) internal successors, (685), 6 states have internal predecessors, (685), 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) [2021-11-07 08:02:44,150 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:44,151 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] [2021-11-07 08:02:44,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 08:02:44,151 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:44,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:44,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1855671906, now seen corresponding path program 1 times [2021-11-07 08:02:44,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:44,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755311115] [2021-11-07 08:02:44,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:44,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:44,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:44,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:44,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755311115] [2021-11-07 08:02:44,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755311115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:44,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:44,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 08:02:44,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047074799] [2021-11-07 08:02:44,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 08:02:44,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:44,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 08:02:44,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:02:44,315 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 128 [2021-11-07 08:02:44,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 1059 flow. Second operand has 7 states, 7 states have (on average 114.14285714285714) internal successors, (799), 7 states have internal predecessors, (799), 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) [2021-11-07 08:02:44,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:44,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 128 [2021-11-07 08:02:44,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:45,717 INFO L129 PetriNetUnfolder]: 2276/5072 cut-off events. [2021-11-07 08:02:45,718 INFO L130 PetriNetUnfolder]: For 25121/38434 co-relation queries the response was YES. [2021-11-07 08:02:45,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20701 conditions, 5072 events. 2276/5072 cut-off events. For 25121/38434 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 48293 event pairs, 107 based on Foata normal form. 584/5094 useless extension candidates. Maximal degree in co-relation 20609. Up to 2163 conditions per place. [2021-11-07 08:02:45,815 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 34 selfloop transitions, 38 changer transitions 0/208 dead transitions. [2021-11-07 08:02:45,816 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 208 transitions, 1431 flow [2021-11-07 08:02:45,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 08:02:45,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-07 08:02:45,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1537 transitions. [2021-11-07 08:02:45,820 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9236778846153846 [2021-11-07 08:02:45,820 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1537 transitions. [2021-11-07 08:02:45,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1537 transitions. [2021-11-07 08:02:45,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:45,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1537 transitions. [2021-11-07 08:02:45,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 118.23076923076923) internal successors, (1537), 13 states have internal predecessors, (1537), 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) [2021-11-07 08:02:45,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-11-07 08:02:45,839 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 128.0) internal successors, (1792), 14 states have internal predecessors, (1792), 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) [2021-11-07 08:02:45,839 INFO L186 Difference]: Start difference. First operand has 176 places, 172 transitions, 1059 flow. Second operand 13 states and 1537 transitions. [2021-11-07 08:02:45,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 208 transitions, 1431 flow [2021-11-07 08:02:45,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 208 transitions, 1429 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-07 08:02:45,902 INFO L242 Difference]: Finished difference. Result has 193 places, 186 transitions, 1298 flow [2021-11-07 08:02:45,903 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1005, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1298, PETRI_PLACES=193, PETRI_TRANSITIONS=186} [2021-11-07 08:02:45,903 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 58 predicate places. [2021-11-07 08:02:45,903 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 186 transitions, 1298 flow [2021-11-07 08:02:45,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.14285714285714) internal successors, (799), 7 states have internal predecessors, (799), 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) [2021-11-07 08:02:45,904 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:45,904 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] [2021-11-07 08:02:45,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 08:02:45,904 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:45,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:45,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1415846651, now seen corresponding path program 1 times [2021-11-07 08:02:45,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:45,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722254062] [2021-11-07 08:02:45,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:45,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:46,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:46,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:46,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722254062] [2021-11-07 08:02:46,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722254062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:46,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:46,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:02:46,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375186450] [2021-11-07 08:02:46,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:02:46,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:46,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:02:46,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:02:46,047 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 128 [2021-11-07 08:02:46,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 186 transitions, 1298 flow. Second operand has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2021-11-07 08:02:46,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:46,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 128 [2021-11-07 08:02:46,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:47,537 INFO L129 PetriNetUnfolder]: 1587/5255 cut-off events. [2021-11-07 08:02:47,538 INFO L130 PetriNetUnfolder]: For 36620/49246 co-relation queries the response was YES. [2021-11-07 08:02:47,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23254 conditions, 5255 events. 1587/5255 cut-off events. For 36620/49246 co-relation queries the response was YES. Maximal size of possible extension queue 630. Compared 58445 event pairs, 189 based on Foata normal form. 147/4869 useless extension candidates. Maximal degree in co-relation 23154. Up to 1649 conditions per place. [2021-11-07 08:02:47,632 INFO L132 encePairwiseOnDemand]: 122/128 looper letters, 14 selfloop transitions, 11 changer transitions 0/200 dead transitions. [2021-11-07 08:02:47,632 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 200 transitions, 1462 flow [2021-11-07 08:02:47,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 08:02:47,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-07 08:02:47,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1061 transitions. [2021-11-07 08:02:47,636 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9210069444444444 [2021-11-07 08:02:47,636 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1061 transitions. [2021-11-07 08:02:47,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1061 transitions. [2021-11-07 08:02:47,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:47,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1061 transitions. [2021-11-07 08:02:47,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.88888888888889) internal successors, (1061), 9 states have internal predecessors, (1061), 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) [2021-11-07 08:02:47,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-11-07 08:02:47,643 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2021-11-07 08:02:47,643 INFO L186 Difference]: Start difference. First operand has 193 places, 186 transitions, 1298 flow. Second operand 9 states and 1061 transitions. [2021-11-07 08:02:47,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 200 transitions, 1462 flow [2021-11-07 08:02:47,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 200 transitions, 1359 flow, removed 42 selfloop flow, removed 4 redundant places. [2021-11-07 08:02:47,965 INFO L242 Difference]: Finished difference. Result has 204 places, 194 transitions, 1334 flow [2021-11-07 08:02:47,966 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1201, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1334, PETRI_PLACES=204, PETRI_TRANSITIONS=194} [2021-11-07 08:02:47,966 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 69 predicate places. [2021-11-07 08:02:47,967 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 194 transitions, 1334 flow [2021-11-07 08:02:47,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.33333333333333) internal successors, (698), 6 states have internal predecessors, (698), 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) [2021-11-07 08:02:47,968 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:47,968 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] [2021-11-07 08:02:47,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 08:02:47,969 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:47,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:47,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1305626892, now seen corresponding path program 1 times [2021-11-07 08:02:47,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:47,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050759569] [2021-11-07 08:02:47,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:47,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:48,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:48,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:48,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050759569] [2021-11-07 08:02:48,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050759569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:48,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:48,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:48,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476264070] [2021-11-07 08:02:48,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 08:02:48,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:48,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 08:02:48,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 08:02:48,145 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 128 [2021-11-07 08:02:48,146 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 194 transitions, 1334 flow. Second operand has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 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) [2021-11-07 08:02:48,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:48,147 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 128 [2021-11-07 08:02:48,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:50,106 INFO L129 PetriNetUnfolder]: 3145/6635 cut-off events. [2021-11-07 08:02:50,107 INFO L130 PetriNetUnfolder]: For 52768/79191 co-relation queries the response was YES. [2021-11-07 08:02:50,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31827 conditions, 6635 events. 3145/6635 cut-off events. For 52768/79191 co-relation queries the response was YES. Maximal size of possible extension queue 1081. Compared 65258 event pairs, 22 based on Foata normal form. 996/6771 useless extension candidates. Maximal degree in co-relation 31721. Up to 2396 conditions per place. [2021-11-07 08:02:50,253 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 28 selfloop transitions, 58 changer transitions 20/234 dead transitions. [2021-11-07 08:02:50,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 234 transitions, 1938 flow [2021-11-07 08:02:50,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 08:02:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-07 08:02:50,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1893 transitions. [2021-11-07 08:02:50,259 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.92431640625 [2021-11-07 08:02:50,259 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1893 transitions. [2021-11-07 08:02:50,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1893 transitions. [2021-11-07 08:02:50,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:50,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1893 transitions. [2021-11-07 08:02:50,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 118.3125) internal successors, (1893), 16 states have internal predecessors, (1893), 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) [2021-11-07 08:02:50,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 128.0) internal successors, (2176), 17 states have internal predecessors, (2176), 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) [2021-11-07 08:02:50,273 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 128.0) internal successors, (2176), 17 states have internal predecessors, (2176), 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) [2021-11-07 08:02:50,273 INFO L186 Difference]: Start difference. First operand has 204 places, 194 transitions, 1334 flow. Second operand 16 states and 1893 transitions. [2021-11-07 08:02:50,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 234 transitions, 1938 flow [2021-11-07 08:02:50,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 234 transitions, 1875 flow, removed 18 selfloop flow, removed 5 redundant places. [2021-11-07 08:02:50,671 INFO L242 Difference]: Finished difference. Result has 218 places, 204 transitions, 1562 flow [2021-11-07 08:02:50,672 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1181, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1562, PETRI_PLACES=218, PETRI_TRANSITIONS=204} [2021-11-07 08:02:50,672 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 83 predicate places. [2021-11-07 08:02:50,672 INFO L470 AbstractCegarLoop]: Abstraction has has 218 places, 204 transitions, 1562 flow [2021-11-07 08:02:50,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 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) [2021-11-07 08:02:50,673 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:50,673 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] [2021-11-07 08:02:50,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 08:02:50,673 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:50,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:50,674 INFO L85 PathProgramCache]: Analyzing trace with hash 727408154, now seen corresponding path program 1 times [2021-11-07 08:02:50,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:50,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712979589] [2021-11-07 08:02:50,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:50,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:50,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:50,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:50,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712979589] [2021-11-07 08:02:50,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712979589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:50,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:50,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 08:02:50,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903026945] [2021-11-07 08:02:50,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:50,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:50,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:50,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:50,891 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 128 [2021-11-07 08:02:50,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 204 transitions, 1562 flow. Second operand has 9 states, 9 states have (on average 114.11111111111111) internal successors, (1027), 9 states have internal predecessors, (1027), 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) [2021-11-07 08:02:50,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:50,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 128 [2021-11-07 08:02:50,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:53,049 INFO L129 PetriNetUnfolder]: 2863/6171 cut-off events. [2021-11-07 08:02:53,049 INFO L130 PetriNetUnfolder]: For 64547/99874 co-relation queries the response was YES. [2021-11-07 08:02:53,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33480 conditions, 6171 events. 2863/6171 cut-off events. For 64547/99874 co-relation queries the response was YES. Maximal size of possible extension queue 1081. Compared 62155 event pairs, 0 based on Foata normal form. 958/6271 useless extension candidates. Maximal degree in co-relation 33426. Up to 2165 conditions per place. [2021-11-07 08:02:53,191 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 22 selfloop transitions, 63 changer transitions 26/237 dead transitions. [2021-11-07 08:02:53,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 237 transitions, 2082 flow [2021-11-07 08:02:53,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:02:53,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-11-07 08:02:53,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2229 transitions. [2021-11-07 08:02:53,199 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9165296052631579 [2021-11-07 08:02:53,200 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2229 transitions. [2021-11-07 08:02:53,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2229 transitions. [2021-11-07 08:02:53,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:53,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2229 transitions. [2021-11-07 08:02:53,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 117.3157894736842) internal successors, (2229), 19 states have internal predecessors, (2229), 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) [2021-11-07 08:02:53,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 128.0) internal successors, (2560), 20 states have internal predecessors, (2560), 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) [2021-11-07 08:02:53,215 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 128.0) internal successors, (2560), 20 states have internal predecessors, (2560), 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) [2021-11-07 08:02:53,216 INFO L186 Difference]: Start difference. First operand has 218 places, 204 transitions, 1562 flow. Second operand 19 states and 2229 transitions. [2021-11-07 08:02:53,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 237 transitions, 2082 flow [2021-11-07 08:02:55,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 237 transitions, 1572 flow, removed 209 selfloop flow, removed 22 redundant places. [2021-11-07 08:02:55,281 INFO L242 Difference]: Finished difference. Result has 215 places, 201 transitions, 1282 flow [2021-11-07 08:02:55,281 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1282, PETRI_PLACES=215, PETRI_TRANSITIONS=201} [2021-11-07 08:02:55,281 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 80 predicate places. [2021-11-07 08:02:55,281 INFO L470 AbstractCegarLoop]: Abstraction has has 215 places, 201 transitions, 1282 flow [2021-11-07 08:02:55,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 114.11111111111111) internal successors, (1027), 9 states have internal predecessors, (1027), 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) [2021-11-07 08:02:55,282 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:55,282 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] [2021-11-07 08:02:55,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 08:02:55,283 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:55,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:55,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1159722180, now seen corresponding path program 1 times [2021-11-07 08:02:55,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:55,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471798683] [2021-11-07 08:02:55,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:55,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:55,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:55,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:55,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471798683] [2021-11-07 08:02:55,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471798683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:55,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:55,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 08:02:55,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577485003] [2021-11-07 08:02:55,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 08:02:55,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:55,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 08:02:55,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:02:55,457 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 128 [2021-11-07 08:02:55,458 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 201 transitions, 1282 flow. Second operand has 7 states, 7 states have (on average 114.57142857142857) internal successors, (802), 7 states have internal predecessors, (802), 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) [2021-11-07 08:02:55,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:55,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 128 [2021-11-07 08:02:55,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:02:57,301 INFO L129 PetriNetUnfolder]: 3148/8885 cut-off events. [2021-11-07 08:02:57,301 INFO L130 PetriNetUnfolder]: For 26504/29430 co-relation queries the response was YES. [2021-11-07 08:02:57,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30647 conditions, 8885 events. 3148/8885 cut-off events. For 26504/29430 co-relation queries the response was YES. Maximal size of possible extension queue 1401. Compared 109742 event pairs, 0 based on Foata normal form. 18/7933 useless extension candidates. Maximal degree in co-relation 30544. Up to 1044 conditions per place. [2021-11-07 08:02:57,484 INFO L132 encePairwiseOnDemand]: 122/128 looper letters, 11 selfloop transitions, 2 changer transitions 4/207 dead transitions. [2021-11-07 08:02:57,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 207 transitions, 1332 flow [2021-11-07 08:02:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 08:02:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-07 08:02:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 809 transitions. [2021-11-07 08:02:57,487 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9029017857142857 [2021-11-07 08:02:57,488 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 809 transitions. [2021-11-07 08:02:57,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 809 transitions. [2021-11-07 08:02:57,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:02:57,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 809 transitions. [2021-11-07 08:02:57,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 115.57142857142857) internal successors, (809), 7 states have internal predecessors, (809), 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) [2021-11-07 08:02:57,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 128.0) internal successors, (1024), 8 states have internal predecessors, (1024), 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) [2021-11-07 08:02:57,494 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 128.0) internal successors, (1024), 8 states have internal predecessors, (1024), 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) [2021-11-07 08:02:57,494 INFO L186 Difference]: Start difference. First operand has 215 places, 201 transitions, 1282 flow. Second operand 7 states and 809 transitions. [2021-11-07 08:02:57,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 207 transitions, 1332 flow [2021-11-07 08:02:59,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 207 transitions, 1172 flow, removed 32 selfloop flow, removed 20 redundant places. [2021-11-07 08:02:59,170 INFO L242 Difference]: Finished difference. Result has 203 places, 202 transitions, 1141 flow [2021-11-07 08:02:59,170 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1141, PETRI_PLACES=203, PETRI_TRANSITIONS=202} [2021-11-07 08:02:59,171 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 68 predicate places. [2021-11-07 08:02:59,171 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 202 transitions, 1141 flow [2021-11-07 08:02:59,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.57142857142857) internal successors, (802), 7 states have internal predecessors, (802), 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) [2021-11-07 08:02:59,171 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:02:59,172 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] [2021-11-07 08:02:59,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-07 08:02:59,172 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:02:59,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:59,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1694260766, now seen corresponding path program 2 times [2021-11-07 08:02:59,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:59,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514080965] [2021-11-07 08:02:59,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:59,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:59,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:59,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514080965] [2021-11-07 08:02:59,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514080965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:59,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:59,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 08:02:59,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371964961] [2021-11-07 08:02:59,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:02:59,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:59,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:02:59,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:02:59,424 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 128 [2021-11-07 08:02:59,425 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 202 transitions, 1141 flow. Second operand has 12 states, 12 states have (on average 104.66666666666667) internal successors, (1256), 12 states have internal predecessors, (1256), 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) [2021-11-07 08:02:59,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:02:59,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 128 [2021-11-07 08:02:59,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:03:03,198 INFO L129 PetriNetUnfolder]: 6708/19619 cut-off events. [2021-11-07 08:03:03,198 INFO L130 PetriNetUnfolder]: For 36965/38418 co-relation queries the response was YES. [2021-11-07 08:03:03,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60044 conditions, 19619 events. 6708/19619 cut-off events. For 36965/38418 co-relation queries the response was YES. Maximal size of possible extension queue 2961. Compared 276001 event pairs, 10 based on Foata normal form. 29/17992 useless extension candidates. Maximal degree in co-relation 60005. Up to 2251 conditions per place. [2021-11-07 08:03:03,460 INFO L132 encePairwiseOnDemand]: 116/128 looper letters, 33 selfloop transitions, 5 changer transitions 100/291 dead transitions. [2021-11-07 08:03:03,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 291 transitions, 2189 flow [2021-11-07 08:03:03,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 08:03:03,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-07 08:03:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1498 transitions. [2021-11-07 08:03:03,465 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8359375 [2021-11-07 08:03:03,465 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1498 transitions. [2021-11-07 08:03:03,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1498 transitions. [2021-11-07 08:03:03,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:03:03,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1498 transitions. [2021-11-07 08:03:03,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2021-11-07 08:03:03,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-11-07 08:03:03,475 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 128.0) internal successors, (1920), 15 states have internal predecessors, (1920), 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) [2021-11-07 08:03:03,475 INFO L186 Difference]: Start difference. First operand has 203 places, 202 transitions, 1141 flow. Second operand 14 states and 1498 transitions. [2021-11-07 08:03:03,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 291 transitions, 2189 flow [2021-11-07 08:03:08,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 291 transitions, 2178 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-11-07 08:03:08,959 INFO L242 Difference]: Finished difference. Result has 216 places, 181 transitions, 963 flow [2021-11-07 08:03:08,959 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=963, PETRI_PLACES=216, PETRI_TRANSITIONS=181} [2021-11-07 08:03:08,960 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 81 predicate places. [2021-11-07 08:03:08,960 INFO L470 AbstractCegarLoop]: Abstraction has has 216 places, 181 transitions, 963 flow [2021-11-07 08:03:08,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.66666666666667) internal successors, (1256), 12 states have internal predecessors, (1256), 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) [2021-11-07 08:03:08,960 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:03:08,960 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] [2021-11-07 08:03:08,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 08:03:08,960 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:03:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:03:08,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1111873024, now seen corresponding path program 3 times [2021-11-07 08:03:08,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:03:08,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074161508] [2021-11-07 08:03:08,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:03:08,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:03:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:03:09,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:03:09,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:03:09,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074161508] [2021-11-07 08:03:09,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074161508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:03:09,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:03:09,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-07 08:03:09,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953018669] [2021-11-07 08:03:09,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 08:03:09,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:03:09,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 08:03:09,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-11-07 08:03:09,396 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 128 [2021-11-07 08:03:09,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 181 transitions, 963 flow. Second operand has 14 states, 14 states have (on average 104.42857142857143) internal successors, (1462), 14 states have internal predecessors, (1462), 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) [2021-11-07 08:03:09,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:03:09,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 128 [2021-11-07 08:03:09,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:03:10,746 INFO L129 PetriNetUnfolder]: 2547/7477 cut-off events. [2021-11-07 08:03:10,746 INFO L130 PetriNetUnfolder]: For 13346/13764 co-relation queries the response was YES. [2021-11-07 08:03:10,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22143 conditions, 7477 events. 2547/7477 cut-off events. For 13346/13764 co-relation queries the response was YES. Maximal size of possible extension queue 990. Compared 89554 event pairs, 2 based on Foata normal form. 30/6813 useless extension candidates. Maximal degree in co-relation 22096. Up to 868 conditions per place. [2021-11-07 08:03:10,862 INFO L132 encePairwiseOnDemand]: 117/128 looper letters, 30 selfloop transitions, 13 changer transitions 5/201 dead transitions. [2021-11-07 08:03:10,862 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 201 transitions, 1199 flow [2021-11-07 08:03:10,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 08:03:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-07 08:03:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1277 transitions. [2021-11-07 08:03:10,865 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8313802083333334 [2021-11-07 08:03:10,866 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1277 transitions. [2021-11-07 08:03:10,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1277 transitions. [2021-11-07 08:03:10,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:03:10,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1277 transitions. [2021-11-07 08:03:10,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 106.41666666666667) internal successors, (1277), 12 states have internal predecessors, (1277), 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) [2021-11-07 08:03:10,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 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) [2021-11-07 08:03:10,874 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 128.0) internal successors, (1664), 13 states have internal predecessors, (1664), 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) [2021-11-07 08:03:10,874 INFO L186 Difference]: Start difference. First operand has 216 places, 181 transitions, 963 flow. Second operand 12 states and 1277 transitions. [2021-11-07 08:03:10,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 201 transitions, 1199 flow [2021-11-07 08:03:11,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 201 transitions, 1101 flow, removed 34 selfloop flow, removed 21 redundant places. [2021-11-07 08:03:11,761 INFO L242 Difference]: Finished difference. Result has 196 places, 186 transitions, 992 flow [2021-11-07 08:03:11,761 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=992, PETRI_PLACES=196, PETRI_TRANSITIONS=186} [2021-11-07 08:03:11,761 INFO L334 CegarLoopForPetriNet]: 135 programPoint places, 61 predicate places. [2021-11-07 08:03:11,761 INFO L470 AbstractCegarLoop]: Abstraction has has 196 places, 186 transitions, 992 flow [2021-11-07 08:03:11,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 104.42857142857143) internal successors, (1462), 14 states have internal predecessors, (1462), 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) [2021-11-07 08:03:11,762 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:03:11,762 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] [2021-11-07 08:03:11,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-07 08:03:11,763 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-07 08:03:11,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:03:11,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1868810502, now seen corresponding path program 4 times [2021-11-07 08:03:11,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:03:11,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624126404] [2021-11-07 08:03:11,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:03:11,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:03:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:03:11,823 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:03:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:03:11,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:03:11,950 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 08:03:11,951 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:03:11,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:03:11,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 08:03:11,954 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-07 08:03:11,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-11-07 08:03:11,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-11-07 08:03:11,955 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:03:11,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-07 08:03:11,959 INFO L731 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:03:11,966 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 08:03:11,966 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:03:12,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:03:12 BasicIcfg [2021-11-07 08:03:12,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:03:12,184 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:03:12,184 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:03:12,184 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:03:12,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:02:28" (3/4) ... [2021-11-07 08:03:12,187 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 08:03:12,387 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:03:12,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:03:12,390 INFO L168 Benchmark]: Toolchain (without parser) took 46984.55 ms. Allocated memory was 81.8 MB in the beginning and 7.4 GB in the end (delta: 7.3 GB). Free memory was 42.0 MB in the beginning and 6.4 GB in the end (delta: -6.3 GB). Peak memory consumption was 1.0 GB. Max. memory is 16.1 GB. [2021-11-07 08:03:12,390 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 60.0 MB in the beginning and 59.9 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:03:12,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.19 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 41.8 MB in the beginning and 61.4 MB in the end (delta: -19.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:03:12,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.40 ms. Allocated memory is still 98.6 MB. Free memory was 61.4 MB in the beginning and 58.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 08:03:12,392 INFO L168 Benchmark]: Boogie Preprocessor took 67.27 ms. Allocated memory is still 98.6 MB. Free memory was 58.4 MB in the beginning and 56.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:03:12,393 INFO L168 Benchmark]: RCFGBuilder took 2310.67 ms. Allocated memory is still 98.6 MB. Free memory was 56.3 MB in the beginning and 56.9 MB in the end (delta: -539.1 kB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2021-11-07 08:03:12,393 INFO L168 Benchmark]: TraceAbstraction took 43478.50 ms. Allocated memory was 98.6 MB in the beginning and 7.4 GB in the end (delta: 7.3 GB). Free memory was 56.2 MB in the beginning and 6.4 GB in the end (delta: -6.3 GB). Peak memory consumption was 963.0 MB. Max. memory is 16.1 GB. [2021-11-07 08:03:12,394 INFO L168 Benchmark]: Witness Printer took 203.94 ms. Allocated memory is still 7.4 GB. Free memory was 6.4 GB in the beginning and 6.4 GB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-11-07 08:03:12,397 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 60.0 MB in the beginning and 59.9 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 797.19 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 41.8 MB in the beginning and 61.4 MB in the end (delta: -19.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 116.40 ms. Allocated memory is still 98.6 MB. Free memory was 61.4 MB in the beginning and 58.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.27 ms. Allocated memory is still 98.6 MB. Free memory was 58.4 MB in the beginning and 56.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2310.67 ms. Allocated memory is still 98.6 MB. Free memory was 56.3 MB in the beginning and 56.9 MB in the end (delta: -539.1 kB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 43478.50 ms. Allocated memory was 98.6 MB in the beginning and 7.4 GB in the end (delta: 7.3 GB). Free memory was 56.2 MB in the beginning and 6.4 GB in the end (delta: -6.3 GB). Peak memory consumption was 963.0 MB. Max. memory is 16.1 GB. * Witness Printer took 203.94 ms. Allocated memory is still 7.4 GB. Free memory was 6.4 GB in the beginning and 6.4 GB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 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 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L712] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L714] 0 int __unbuffered_p3_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0] [L716] 0 int __unbuffered_p3_EBX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0] [L718] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0] [L719] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0] [L720] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0] [L722] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L724] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L725] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L726] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L727] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L728] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L729] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L730] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L731] 0 _Bool y$r_buff0_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0] [L732] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0] [L733] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L734] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L735] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L736] 0 _Bool y$r_buff1_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0] [L737] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0] [L738] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L739] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L740] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L741] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L742] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L744] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L745] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L746] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L846] 0 pthread_t t577; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L847] FCALL, FORK 0 pthread_create(&t577, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L848] 0 pthread_t t578; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L849] FCALL, FORK 0 pthread_create(&t578, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L850] 0 pthread_t t579; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L851] FCALL, FORK 0 pthread_create(&t579, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L785] 3 y$w_buff1 = y$w_buff0 [L786] 3 y$w_buff0 = 2 [L787] 3 y$w_buff1_used = y$w_buff0_used [L788] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L790] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L791] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L792] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L793] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L794] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L795] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L798] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L852] 0 pthread_t t580; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L853] FCALL, FORK 0 pthread_create(&t580, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L818] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L821] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L753] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L765] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L768] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L825] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L825] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L826] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L827] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L828] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L828] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L859] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L859] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L860] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L860] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L861] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L861] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L862] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L862] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L863] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L863] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 y$flush_delayed = weak$$choice2 [L869] 0 y$mem_tmp = y [L870] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L870] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L871] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L871] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L872] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L872] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L873] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L873] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L874] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L875] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L876] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L878] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L878] 0 y = y$flush_delayed ? y$mem_tmp : y [L879] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] 0 reach_error() VAL [__unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 164 locations, 7 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: 43.1s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 36.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 217 SDtfs, 714 SDslu, 897 SDs, 0 SdLazy, 1802 SolverSat, 450 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1562occurred in iteration=15, InterpolantAutomatonStates: 229, 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: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1764 NumberOfCodeBlocks, 1764 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1646 ConstructedInterpolants, 0 QuantifiedInterpolants, 9499 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-07 08:03:12,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8f6bce8-a018-4a42-9d70-27e69c9fe016/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE