./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a --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 a6d0914923ba77f2cbf67d52dc6ec759519359118cb2f8fd5f254f95bf2b938e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:22:16,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:22:16,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:22:16,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:22:16,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:22:16,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:22:16,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:22:16,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:22:16,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:22:16,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:22:16,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:22:16,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:22:16,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:22:16,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:22:16,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:22:16,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:22:16,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:22:16,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:22:16,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:22:16,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:22:16,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:22:16,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:22:16,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:22:16,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:22:16,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:22:16,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:22:16,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:22:16,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:22:16,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:22:16,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:22:16,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:22:16,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:22:16,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:22:16,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:22:16,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:22:16,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:22:16,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:22:16,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:22:16,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:22:16,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:22:16,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:22:16,883 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:22:16,927 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:22:16,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:22:16,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:22:16,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:22:16,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:22:16,930 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:22:16,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:22:16,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:22:16,932 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:22:16,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:22:16,933 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:22:16,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:22:16,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:22:16,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:22:16,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:22:16,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:22:16,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:22:16,936 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:22:16,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:22:16,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:22:16,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:22:16,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:22:16,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:22:16,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:22:16,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:22:16,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:22:16,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:22:16,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:22:16,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:22:16,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:22:16,940 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:22:16,941 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:22:16,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:22:16,941 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_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6d0914923ba77f2cbf67d52dc6ec759519359118cb2f8fd5f254f95bf2b938e [2022-11-21 17:22:17,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:22:17,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:22:17,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:22:17,300 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:22:17,300 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:22:17,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-11-21 17:22:20,417 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:22:20,690 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:22:20,690 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-11-21 17:22:20,704 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/data/7a70a7466/7843e9fe811948118b49c4f7a9406eb6/FLAGd591deb9f [2022-11-21 17:22:20,721 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/data/7a70a7466/7843e9fe811948118b49c4f7a9406eb6 [2022-11-21 17:22:20,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:22:20,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:22:20,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:22:20,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:22:20,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:22:20,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:22:20" (1/1) ... [2022-11-21 17:22:20,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486fe0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:20, skipping insertion in model container [2022-11-21 17:22:20,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:22:20" (1/1) ... [2022-11-21 17:22:20,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:22:20,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:22:20,988 WARN L237 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_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-21 17:22:21,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:22:21,347 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:22:21,363 WARN L237 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_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-21 17:22:21,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:22:21,449 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:22:21,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21 WrapperNode [2022-11-21 17:22:21,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:22:21,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:22:21,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:22:21,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:22:21,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (1/1) ... [2022-11-21 17:22:21,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (1/1) ... [2022-11-21 17:22:21,505 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 143 [2022-11-21 17:22:21,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:22:21,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:22:21,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:22:21,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:22:21,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (1/1) ... [2022-11-21 17:22:21,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (1/1) ... [2022-11-21 17:22:21,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (1/1) ... [2022-11-21 17:22:21,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (1/1) ... [2022-11-21 17:22:21,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (1/1) ... [2022-11-21 17:22:21,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (1/1) ... [2022-11-21 17:22:21,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (1/1) ... [2022-11-21 17:22:21,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (1/1) ... [2022-11-21 17:22:21,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:22:21,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:22:21,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:22:21,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:22:21,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (1/1) ... [2022-11-21 17:22:21,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:22:21,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:22:21,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:22:21,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60806ee-3dbe-4bd0-a2ad-1487eabf3160/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:22:21,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:22:21,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 17:22:21,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:22:21,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:22:21,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:22:21,650 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 17:22:21,650 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 17:22:21,651 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 17:22:21,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 17:22:21,652 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 17:22:21,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 17:22:21,652 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-21 17:22:21,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-21 17:22:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:22:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 17:22:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:22:21,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:22:21,655 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:22:21,869 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:22:21,871 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:22:22,297 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:22:22,443 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:22:22,444 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:22:22,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:22 BoogieIcfgContainer [2022-11-21 17:22:22,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:22:22,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:22:22,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:22:22,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:22:22,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:22:20" (1/3) ... [2022-11-21 17:22:22,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6598f94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:22, skipping insertion in model container [2022-11-21 17:22:22,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:21" (2/3) ... [2022-11-21 17:22:22,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6598f94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:22, skipping insertion in model container [2022-11-21 17:22:22,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:22" (3/3) ... [2022-11-21 17:22:22,457 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-11-21 17:22:22,467 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 17:22:22,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:22:22,479 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 17:22:22,480 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:22:22,547 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 17:22:22,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2022-11-21 17:22:22,710 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2022-11-21 17:22:22,713 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:22:22,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2022-11-21 17:22:22,720 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2022-11-21 17:22:22,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2022-11-21 17:22:22,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:22:22,751 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3440f78e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:22:22,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-21 17:22:22,779 INFO L130 PetriNetUnfolder]: 0/48 cut-off events. [2022-11-21 17:22:22,781 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:22:22,782 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:22:22,783 INFO L209 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] [2022-11-21 17:22:22,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:22:22,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:22,791 INFO L85 PathProgramCache]: Analyzing trace with hash 426640259, now seen corresponding path program 1 times [2022-11-21 17:22:22,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:22,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811636133] [2022-11-21 17:22:22,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:22,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:23,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:23,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811636133] [2022-11-21 17:22:23,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811636133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:23,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:23,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:22:23,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007036384] [2022-11-21 17:22:23,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:23,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:23,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:23,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:23,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:23,709 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 136 [2022-11-21 17:22:23,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 132 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2022-11-21 17:22:23,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:22:23,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 136 [2022-11-21 17:22:23,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:22:23,986 INFO L130 PetriNetUnfolder]: 162/546 cut-off events. [2022-11-21 17:22:23,986 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-21 17:22:23,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 546 events. 162/546 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2844 event pairs, 34 based on Foata normal form. 49/566 useless extension candidates. Maximal degree in co-relation 796. Up to 191 conditions per place. [2022-11-21 17:22:24,001 INFO L137 encePairwiseOnDemand]: 131/136 looper letters, 18 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2022-11-21 17:22:24,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 136 transitions, 333 flow [2022-11-21 17:22:24,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:24,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:22:24,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2022-11-21 17:22:24,026 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9436274509803921 [2022-11-21 17:22:24,027 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2022-11-21 17:22:24,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2022-11-21 17:22:24,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:22:24,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2022-11-21 17:22:24,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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) [2022-11-21 17:22:24,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2022-11-21 17:22:24,086 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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) [2022-11-21 17:22:24,088 INFO L175 Difference]: Start difference. First operand has 143 places, 132 transitions, 276 flow. Second operand 3 states and 385 transitions. [2022-11-21 17:22:24,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 136 transitions, 333 flow [2022-11-21 17:22:24,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 136 transitions, 326 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 17:22:24,100 INFO L231 Difference]: Finished difference. Result has 139 places, 128 transitions, 268 flow [2022-11-21 17:22:24,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2022-11-21 17:22:24,107 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, -4 predicate places. [2022-11-21 17:22:24,107 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 268 flow [2022-11-21 17:22:24,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2022-11-21 17:22:24,108 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:22:24,108 INFO L209 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] [2022-11-21 17:22:24,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:22:24,125 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:22:24,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:24,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1904200068, now seen corresponding path program 1 times [2022-11-21 17:22:24,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:24,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637754647] [2022-11-21 17:22:24,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:24,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:24,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:24,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:24,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637754647] [2022-11-21 17:22:24,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637754647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:24,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:24,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:22:24,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773409838] [2022-11-21 17:22:24,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:24,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:22:24,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:24,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:22:24,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:22:24,836 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 136 [2022-11-21 17:22:24,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 104.66666666666667) internal successors, (628), 6 states have internal predecessors, (628), 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) [2022-11-21 17:22:24,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:22:24,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 136 [2022-11-21 17:22:24,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:22:33,525 INFO L130 PetriNetUnfolder]: 21069/43826 cut-off events. [2022-11-21 17:22:33,525 INFO L131 PetriNetUnfolder]: For 1735/1735 co-relation queries the response was YES. [2022-11-21 17:22:33,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74300 conditions, 43826 events. 21069/43826 cut-off events. For 1735/1735 co-relation queries the response was YES. Maximal size of possible extension queue 1835. Compared 465089 event pairs, 4146 based on Foata normal form. 0/42804 useless extension candidates. Maximal degree in co-relation 74241. Up to 9439 conditions per place. [2022-11-21 17:22:33,791 INFO L137 encePairwiseOnDemand]: 121/136 looper letters, 38 selfloop transitions, 11 changer transitions 102/236 dead transitions. [2022-11-21 17:22:33,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 236 transitions, 778 flow [2022-11-21 17:22:33,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:22:33,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 17:22:33,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1058 transitions. [2022-11-21 17:22:33,796 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8643790849673203 [2022-11-21 17:22:33,797 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1058 transitions. [2022-11-21 17:22:33,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1058 transitions. [2022-11-21 17:22:33,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:22:33,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1058 transitions. [2022-11-21 17:22:33,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.55555555555556) internal successors, (1058), 9 states have internal predecessors, (1058), 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) [2022-11-21 17:22:33,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2022-11-21 17:22:33,807 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2022-11-21 17:22:33,807 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 268 flow. Second operand 9 states and 1058 transitions. [2022-11-21 17:22:33,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 236 transitions, 778 flow [2022-11-21 17:22:33,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 236 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:22:33,818 INFO L231 Difference]: Finished difference. Result has 153 places, 122 transitions, 374 flow [2022-11-21 17:22:33,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=374, PETRI_PLACES=153, PETRI_TRANSITIONS=122} [2022-11-21 17:22:33,821 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 10 predicate places. [2022-11-21 17:22:33,822 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 122 transitions, 374 flow [2022-11-21 17:22:33,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.66666666666667) internal successors, (628), 6 states have internal predecessors, (628), 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) [2022-11-21 17:22:33,823 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:22:33,824 INFO L209 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] [2022-11-21 17:22:33,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:22:33,825 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:22:33,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:33,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2104057797, now seen corresponding path program 1 times [2022-11-21 17:22:33,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:33,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735942699] [2022-11-21 17:22:33,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:33,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:34,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:34,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:34,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735942699] [2022-11-21 17:22:34,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735942699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:34,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:34,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:22:34,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444053109] [2022-11-21 17:22:34,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:34,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:22:34,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:34,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:22:34,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:22:34,321 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 136 [2022-11-21 17:22:34,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 122 transitions, 374 flow. Second operand has 7 states, 7 states have (on average 104.42857142857143) internal successors, (731), 7 states have internal predecessors, (731), 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) [2022-11-21 17:22:34,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:22:34,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 136 [2022-11-21 17:22:34,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:22:39,453 INFO L130 PetriNetUnfolder]: 16182/26980 cut-off events. [2022-11-21 17:22:39,453 INFO L131 PetriNetUnfolder]: For 49365/49365 co-relation queries the response was YES. [2022-11-21 17:22:39,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84502 conditions, 26980 events. 16182/26980 cut-off events. For 49365/49365 co-relation queries the response was YES. Maximal size of possible extension queue 1351. Compared 219350 event pairs, 1446 based on Foata normal form. 538/27090 useless extension candidates. Maximal degree in co-relation 84431. Up to 7483 conditions per place. [2022-11-21 17:22:39,866 INFO L137 encePairwiseOnDemand]: 120/136 looper letters, 49 selfloop transitions, 16 changer transitions 133/283 dead transitions. [2022-11-21 17:22:39,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 283 transitions, 1710 flow [2022-11-21 17:22:39,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 17:22:39,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 17:22:39,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1503 transitions. [2022-11-21 17:22:39,874 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8501131221719457 [2022-11-21 17:22:39,874 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1503 transitions. [2022-11-21 17:22:39,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1503 transitions. [2022-11-21 17:22:39,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:22:39,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1503 transitions. [2022-11-21 17:22:39,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.61538461538461) internal successors, (1503), 13 states have internal predecessors, (1503), 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) [2022-11-21 17:22:39,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-11-21 17:22:39,885 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-11-21 17:22:39,885 INFO L175 Difference]: Start difference. First operand has 153 places, 122 transitions, 374 flow. Second operand 13 states and 1503 transitions. [2022-11-21 17:22:39,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 283 transitions, 1710 flow [2022-11-21 17:22:40,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 283 transitions, 1592 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:22:40,038 INFO L231 Difference]: Finished difference. Result has 155 places, 130 transitions, 528 flow [2022-11-21 17:22:40,039 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=528, PETRI_PLACES=155, PETRI_TRANSITIONS=130} [2022-11-21 17:22:40,044 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 12 predicate places. [2022-11-21 17:22:40,044 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 130 transitions, 528 flow [2022-11-21 17:22:40,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.42857142857143) internal successors, (731), 7 states have internal predecessors, (731), 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) [2022-11-21 17:22:40,046 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:22:40,047 INFO L209 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] [2022-11-21 17:22:40,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:22:40,047 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:22:40,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:40,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1708566755, now seen corresponding path program 1 times [2022-11-21 17:22:40,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:40,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15752307] [2022-11-21 17:22:40,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:40,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:40,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:40,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:40,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15752307] [2022-11-21 17:22:40,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15752307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:40,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:40,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:22:40,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782389910] [2022-11-21 17:22:40,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:40,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:22:40,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:40,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:22:40,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:22:40,432 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2022-11-21 17:22:40,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 130 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 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) [2022-11-21 17:22:40,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:22:40,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2022-11-21 17:22:40,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:22:44,612 INFO L130 PetriNetUnfolder]: 10456/19234 cut-off events. [2022-11-21 17:22:44,612 INFO L131 PetriNetUnfolder]: For 67376/72132 co-relation queries the response was YES. [2022-11-21 17:22:44,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65115 conditions, 19234 events. 10456/19234 cut-off events. For 67376/72132 co-relation queries the response was YES. Maximal size of possible extension queue 1207. Compared 171364 event pairs, 3840 based on Foata normal form. 1195/19382 useless extension candidates. Maximal degree in co-relation 65032. Up to 8102 conditions per place. [2022-11-21 17:22:44,811 INFO L137 encePairwiseOnDemand]: 129/136 looper letters, 33 selfloop transitions, 7 changer transitions 67/212 dead transitions. [2022-11-21 17:22:44,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 212 transitions, 1270 flow [2022-11-21 17:22:44,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:22:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 17:22:44,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1080 transitions. [2022-11-21 17:22:44,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2022-11-21 17:22:44,817 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1080 transitions. [2022-11-21 17:22:44,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1080 transitions. [2022-11-21 17:22:44,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:22:44,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1080 transitions. [2022-11-21 17:22:44,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 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) [2022-11-21 17:22:44,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2022-11-21 17:22:44,831 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 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) [2022-11-21 17:22:44,831 INFO L175 Difference]: Start difference. First operand has 155 places, 130 transitions, 528 flow. Second operand 9 states and 1080 transitions. [2022-11-21 17:22:44,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 212 transitions, 1270 flow [2022-11-21 17:22:45,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 212 transitions, 1242 flow, removed 14 selfloop flow, removed 0 redundant places. [2022-11-21 17:22:45,123 INFO L231 Difference]: Finished difference. Result has 161 places, 136 transitions, 647 flow [2022-11-21 17:22:45,128 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=647, PETRI_PLACES=161, PETRI_TRANSITIONS=136} [2022-11-21 17:22:45,130 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 18 predicate places. [2022-11-21 17:22:45,130 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 136 transitions, 647 flow [2022-11-21 17:22:45,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 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) [2022-11-21 17:22:45,131 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:22:45,131 INFO L209 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] [2022-11-21 17:22:45,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:22:45,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:22:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash 756981626, now seen corresponding path program 1 times [2022-11-21 17:22:45,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:45,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634260039] [2022-11-21 17:22:45,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:45,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:45,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:45,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634260039] [2022-11-21 17:22:45,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634260039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:45,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:45,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:22:45,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146413986] [2022-11-21 17:22:45,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:45,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:22:45,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:45,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:22:45,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:22:45,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 136 [2022-11-21 17:22:45,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 136 transitions, 647 flow. Second operand has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 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) [2022-11-21 17:22:45,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:22:45,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 136 [2022-11-21 17:22:45,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:22:50,299 INFO L130 PetriNetUnfolder]: 12028/19709 cut-off events. [2022-11-21 17:22:50,300 INFO L131 PetriNetUnfolder]: For 103584/103605 co-relation queries the response was YES. [2022-11-21 17:22:50,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79395 conditions, 19709 events. 12028/19709 cut-off events. For 103584/103605 co-relation queries the response was YES. Maximal size of possible extension queue 986. Compared 149238 event pairs, 1536 based on Foata normal form. 444/19826 useless extension candidates. Maximal degree in co-relation 79299. Up to 4571 conditions per place. [2022-11-21 17:22:50,509 INFO L137 encePairwiseOnDemand]: 124/136 looper letters, 69 selfloop transitions, 11 changer transitions 130/295 dead transitions. [2022-11-21 17:22:50,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 295 transitions, 2441 flow [2022-11-21 17:22:50,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 17:22:50,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 17:22:50,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1493 transitions. [2022-11-21 17:22:50,514 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8444570135746606 [2022-11-21 17:22:50,515 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1493 transitions. [2022-11-21 17:22:50,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1493 transitions. [2022-11-21 17:22:50,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:22:50,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1493 transitions. [2022-11-21 17:22:50,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.84615384615384) internal successors, (1493), 13 states have internal predecessors, (1493), 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) [2022-11-21 17:22:50,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-11-21 17:22:50,524 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-11-21 17:22:50,525 INFO L175 Difference]: Start difference. First operand has 161 places, 136 transitions, 647 flow. Second operand 13 states and 1493 transitions. [2022-11-21 17:22:50,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 295 transitions, 2441 flow [2022-11-21 17:22:50,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 295 transitions, 2350 flow, removed 40 selfloop flow, removed 10 redundant places. [2022-11-21 17:22:50,842 INFO L231 Difference]: Finished difference. Result has 169 places, 143 transitions, 774 flow [2022-11-21 17:22:50,843 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=774, PETRI_PLACES=169, PETRI_TRANSITIONS=143} [2022-11-21 17:22:50,846 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 26 predicate places. [2022-11-21 17:22:50,846 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 143 transitions, 774 flow [2022-11-21 17:22:50,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 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) [2022-11-21 17:22:50,847 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:22:50,847 INFO L209 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] [2022-11-21 17:22:50,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:22:50,848 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:22:50,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:50,849 INFO L85 PathProgramCache]: Analyzing trace with hash 963951865, now seen corresponding path program 1 times [2022-11-21 17:22:50,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:50,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113435544] [2022-11-21 17:22:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:50,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:51,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:51,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:51,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113435544] [2022-11-21 17:22:51,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113435544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:51,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:51,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:22:51,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581571977] [2022-11-21 17:22:51,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:51,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:22:51,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:51,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:22:51,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:22:51,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 136 [2022-11-21 17:22:51,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 143 transitions, 774 flow. Second operand has 7 states, 7 states have (on average 104.71428571428571) internal successors, (733), 7 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:51,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:22:51,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 136 [2022-11-21 17:22:51,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:22:54,988 INFO L130 PetriNetUnfolder]: 9563/16496 cut-off events. [2022-11-21 17:22:54,989 INFO L131 PetriNetUnfolder]: For 124913/124937 co-relation queries the response was YES. [2022-11-21 17:22:55,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71213 conditions, 16496 events. 9563/16496 cut-off events. For 124913/124937 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 128381 event pairs, 1056 based on Foata normal form. 280/16242 useless extension candidates. Maximal degree in co-relation 71113. Up to 4622 conditions per place. [2022-11-21 17:22:55,207 INFO L137 encePairwiseOnDemand]: 120/136 looper letters, 64 selfloop transitions, 36 changer transitions 109/294 dead transitions. [2022-11-21 17:22:55,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 294 transitions, 2616 flow [2022-11-21 17:22:55,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 17:22:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 17:22:55,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1490 transitions. [2022-11-21 17:22:55,214 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8427601809954751 [2022-11-21 17:22:55,214 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1490 transitions. [2022-11-21 17:22:55,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1490 transitions. [2022-11-21 17:22:55,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:22:55,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1490 transitions. [2022-11-21 17:22:55,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.61538461538461) internal successors, (1490), 13 states have internal predecessors, (1490), 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) [2022-11-21 17:22:55,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-11-21 17:22:55,227 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-11-21 17:22:55,227 INFO L175 Difference]: Start difference. First operand has 169 places, 143 transitions, 774 flow. Second operand 13 states and 1490 transitions. [2022-11-21 17:22:55,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 294 transitions, 2616 flow [2022-11-21 17:22:56,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 294 transitions, 2523 flow, removed 44 selfloop flow, removed 5 redundant places. [2022-11-21 17:22:56,042 INFO L231 Difference]: Finished difference. Result has 179 places, 162 transitions, 1214 flow [2022-11-21 17:22:56,043 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=745, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1214, PETRI_PLACES=179, PETRI_TRANSITIONS=162} [2022-11-21 17:22:56,046 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 36 predicate places. [2022-11-21 17:22:56,047 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 162 transitions, 1214 flow [2022-11-21 17:22:56,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.71428571428571) internal successors, (733), 7 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:56,047 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:22:56,048 INFO L209 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] [2022-11-21 17:22:56,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:22:56,048 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:22:56,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:56,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1827314180, now seen corresponding path program 1 times [2022-11-21 17:22:56,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:56,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519892963] [2022-11-21 17:22:56,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:56,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:56,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:56,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:56,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519892963] [2022-11-21 17:22:56,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519892963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:56,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:56,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:22:56,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132654727] [2022-11-21 17:22:56,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:56,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:22:56,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:56,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:22:56,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:22:56,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 136 [2022-11-21 17:22:56,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 162 transitions, 1214 flow. Second operand has 7 states, 7 states have (on average 104.85714285714286) internal successors, (734), 7 states have internal predecessors, (734), 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) [2022-11-21 17:22:56,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:22:56,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 136 [2022-11-21 17:22:56,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:23:00,902 INFO L130 PetriNetUnfolder]: 11015/18629 cut-off events. [2022-11-21 17:23:00,903 INFO L131 PetriNetUnfolder]: For 165766/165796 co-relation queries the response was YES. [2022-11-21 17:23:01,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85387 conditions, 18629 events. 11015/18629 cut-off events. For 165766/165796 co-relation queries the response was YES. Maximal size of possible extension queue 898. Compared 147421 event pairs, 1922 based on Foata normal form. 284/18589 useless extension candidates. Maximal degree in co-relation 85272. Up to 4484 conditions per place. [2022-11-21 17:23:01,193 INFO L137 encePairwiseOnDemand]: 121/136 looper letters, 63 selfloop transitions, 46 changer transitions 102/296 dead transitions. [2022-11-21 17:23:01,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 296 transitions, 2892 flow [2022-11-21 17:23:01,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 17:23:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 17:23:01,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1481 transitions. [2022-11-21 17:23:01,200 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8376696832579186 [2022-11-21 17:23:01,200 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1481 transitions. [2022-11-21 17:23:01,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1481 transitions. [2022-11-21 17:23:01,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:23:01,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1481 transitions. [2022-11-21 17:23:01,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.92307692307692) internal successors, (1481), 13 states have internal predecessors, (1481), 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) [2022-11-21 17:23:01,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-11-21 17:23:01,212 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 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) [2022-11-21 17:23:01,212 INFO L175 Difference]: Start difference. First operand has 179 places, 162 transitions, 1214 flow. Second operand 13 states and 1481 transitions. [2022-11-21 17:23:01,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 296 transitions, 2892 flow [2022-11-21 17:23:02,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 296 transitions, 2690 flow, removed 101 selfloop flow, removed 11 redundant places. [2022-11-21 17:23:02,131 INFO L231 Difference]: Finished difference. Result has 183 places, 166 transitions, 1441 flow [2022-11-21 17:23:02,132 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1441, PETRI_PLACES=183, PETRI_TRANSITIONS=166} [2022-11-21 17:23:02,133 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 40 predicate places. [2022-11-21 17:23:02,134 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 166 transitions, 1441 flow [2022-11-21 17:23:02,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.85714285714286) internal successors, (734), 7 states have internal predecessors, (734), 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) [2022-11-21 17:23:02,135 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:23:02,135 INFO L209 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] [2022-11-21 17:23:02,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:23:02,135 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:23:02,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:02,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1709236602, now seen corresponding path program 1 times [2022-11-21 17:23:02,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:02,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325889703] [2022-11-21 17:23:02,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:02,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:02,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:23:02,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:02,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325889703] [2022-11-21 17:23:02,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325889703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:02,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:02,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:23:02,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17741738] [2022-11-21 17:23:02,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:02,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:23:02,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:02,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:23:02,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:23:02,385 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 136 [2022-11-21 17:23:02,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 166 transitions, 1441 flow. Second operand has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 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) [2022-11-21 17:23:02,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:23:02,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 136 [2022-11-21 17:23:02,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:23:13,532 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([395] L762-->L769: Formula: (let ((.cse4 (not (= (mod v_~a$w_buff0_used~0_129 256) 0))) (.cse5 (not (= (mod v_~a$r_buff0_thd1~0_33 256) 0))) (.cse3 (not (= (mod v_~a$r_buff1_thd1~0_24 256) 0)))) (let ((.cse0 (and (not (= (mod v_~a$w_buff1_used~0_113 256) 0)) .cse3)) (.cse1 (and .cse4 .cse5)) (.cse2 (and (not (= (mod v_~a$w_buff0_used~0_130 256) 0)) .cse5))) (and (= (ite (or .cse0 .cse1) 0 v_~a$w_buff1_used~0_113) v_~a$w_buff1_used~0_112) (= v_~a~0_64 (ite .cse2 v_~a$w_buff0~0_54 (ite .cse0 v_~a$w_buff1~0_45 v_~a~0_65))) (= v_~a$r_buff0_thd1~0_32 (ite .cse1 0 v_~a$r_buff0_thd1~0_33)) (= (ite .cse2 0 v_~a$w_buff0_used~0_130) v_~a$w_buff0_used~0_129) (= (ite (or (and (not (= 0 (mod v_~a$w_buff1_used~0_112 256))) .cse3) (and .cse4 (not (= (mod v_~a$r_buff0_thd1~0_32 256) 0)))) 0 v_~a$r_buff1_thd1~0_24) v_~a$r_buff1_thd1~0_23)))) InVars {~a~0=v_~a~0_65, ~a$w_buff1~0=v_~a$w_buff1~0_45, ~a$w_buff0~0=v_~a$w_buff0~0_54, ~a$r_buff1_thd1~0=v_~a$r_buff1_thd1~0_24, ~a$w_buff0_used~0=v_~a$w_buff0_used~0_130, ~a$r_buff0_thd1~0=v_~a$r_buff0_thd1~0_33, ~a$w_buff1_used~0=v_~a$w_buff1_used~0_113} OutVars{~a~0=v_~a~0_64, ~a$w_buff1~0=v_~a$w_buff1~0_45, ~a$w_buff0~0=v_~a$w_buff0~0_54, ~a$r_buff1_thd1~0=v_~a$r_buff1_thd1~0_23, ~a$w_buff0_used~0=v_~a$w_buff0_used~0_129, ~a$r_buff0_thd1~0=v_~a$r_buff0_thd1~0_32, ~a$w_buff1_used~0=v_~a$w_buff1_used~0_112} AuxVars[] AssignedVars[~a~0, ~a$r_buff1_thd1~0, ~a$w_buff0_used~0, ~a$r_buff0_thd1~0, ~a$w_buff1_used~0][204], [278#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))), Black: 241#(= ~__unbuffered_p3_EAX~0 0), 118#L848true, 81#L884-1true, P3Thread1of1ForFork2InUse, Black: 329#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (= ~y~0 1)), Black: 179#true, P2Thread1of1ForFork0InUse, Black: 323#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 319#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (= ~y~0 1)), Black: 239#true, Black: 314#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))), Black: 181#(= ~z~0 0), P0Thread1of1ForFork1InUse, Black: 315#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 325#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), P1Thread1of1ForFork3InUse, Black: 321#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (= ~y~0 1)), Black: 331#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 327#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), 39#L769true, 242#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))), Black: 311#true, Black: 333#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), 16#L812true, Black: 224#(and (= ~x~0 0) (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 154#true, Black: 277#(= ~y~0 0), Black: 222#(and (= ~x~0 0) (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 289#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 228#(and (= ~x~0 0) (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 161#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 157#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 217#(= ~x~0 0), Black: 165#(and (<= 1 ~main$tmp_guard1~0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 169#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 283#(and (<= 1 ~main$tmp_guard1~0) (= ~y~0 0) (<= (div ~main$tmp_guard1~0 256) 0)), Black: 163#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 275#true, 182#(or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))), 34#L792true, Black: 167#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 293#(and (<= 1 ~main$tmp_guard1~0) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (= ~y~0 0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 285#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))) (<= (div ~main$tmp_guard1~0 256) 0)), 347#true, Black: 295#(and (<= 1 ~main$tmp_guard1~0) (or (not (= 2 ~__unbuffered_p3_EAX~0)) (not (= 2 ~y~0)) (not (= 2 ~x~0)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= 2 ~z~0))) (or (<= 1 |ULTIMATE.start___VERIFIER_assert_~expression#1|) (<= (+ |ULTIMATE.start___VERIFIER_assert_~expression#1| 255) 0)) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 287#(and (<= 1 ~main$tmp_guard1~0) (= ~y~0 0) (<= (div ~main$tmp_guard1~0 256) 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), 313#(= ~y~0 1)]) [2022-11-21 17:23:13,532 INFO L383 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2022-11-21 17:23:13,533 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-21 17:23:13,533 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-21 17:23:13,533 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-21 17:23:13,656 INFO L130 PetriNetUnfolder]: 31487/55198 cut-off events. [2022-11-21 17:23:13,657 INFO L131 PetriNetUnfolder]: For 188454/225101 co-relation queries the response was YES. [2022-11-21 17:23:14,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148404 conditions, 55198 events. 31487/55198 cut-off events. For 188454/225101 co-relation queries the response was YES. Maximal size of possible extension queue 3278. Compared 535399 event pairs, 1906 based on Foata normal form. 961/53341 useless extension candidates. Maximal degree in co-relation 148286. Up to 17810 conditions per place. [2022-11-21 17:23:14,627 INFO L137 encePairwiseOnDemand]: 125/136 looper letters, 109 selfloop transitions, 20 changer transitions 0/269 dead transitions. [2022-11-21 17:23:14,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 269 transitions, 2401 flow [2022-11-21 17:23:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:23:14,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:23:14,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1197 transitions. [2022-11-21 17:23:14,634 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8801470588235294 [2022-11-21 17:23:14,634 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1197 transitions. [2022-11-21 17:23:14,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1197 transitions. [2022-11-21 17:23:14,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:23:14,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1197 transitions. [2022-11-21 17:23:14,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 119.7) internal successors, (1197), 10 states have internal predecessors, (1197), 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) [2022-11-21 17:23:14,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2022-11-21 17:23:14,644 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 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) [2022-11-21 17:23:14,645 INFO L175 Difference]: Start difference. First operand has 183 places, 166 transitions, 1441 flow. Second operand 10 states and 1197 transitions. [2022-11-21 17:23:14,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 269 transitions, 2401 flow [2022-11-21 17:23:14,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 269 transitions, 2331 flow, removed 35 selfloop flow, removed 7 redundant places. [2022-11-21 17:23:14,918 INFO L231 Difference]: Finished difference. Result has 182 places, 184 transitions, 1556 flow [2022-11-21 17:23:14,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1413, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1556, PETRI_PLACES=182, PETRI_TRANSITIONS=184} [2022-11-21 17:23:14,920 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 39 predicate places. [2022-11-21 17:23:14,921 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 184 transitions, 1556 flow [2022-11-21 17:23:14,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 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) [2022-11-21 17:23:14,921 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:23:14,922 INFO L209 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] [2022-11-21 17:23:14,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 17:23:14,922 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:23:14,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:14,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1611348750, now seen corresponding path program 1 times [2022-11-21 17:23:14,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:14,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605835715] [2022-11-21 17:23:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:14,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:15,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:23:15,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:15,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605835715] [2022-11-21 17:23:15,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605835715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:15,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:15,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:23:15,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396784761] [2022-11-21 17:23:15,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:15,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:23:15,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:15,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:23:15,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:23:15,259 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2022-11-21 17:23:15,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 184 transitions, 1556 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 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) [2022-11-21 17:23:15,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:23:15,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2022-11-21 17:23:15,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand