./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro --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 65bf47faf943da19c0d2d15e35f35ceed9dd68ed50ac4355a0589bd57bf3d155 --- 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-8393723 [2022-11-18 18:32:33,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:32:33,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:32:33,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:32:33,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:32:33,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:32:33,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:32:33,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:32:33,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:32:33,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:32:33,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:32:33,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:32:33,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:32:33,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:32:33,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:32:33,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:32:33,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:32:33,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:32:33,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:32:33,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:32:33,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:32:33,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:32:33,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:32:33,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:32:33,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:32:33,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:32:33,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:32:33,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:32:33,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:32:33,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:32:33,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:32:33,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:32:33,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:32:33,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:32:33,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:32:33,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:32:33,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:32:33,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:32:33,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:32:33,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:32:33,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:32:33,651 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:32:33,706 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:32:33,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:32:33,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:32:33,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:32:33,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:32:33,710 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:32:33,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:32:33,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:32:33,711 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:32:33,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:32:33,713 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:32:33,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:32:33,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:32:33,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:32:33,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:32:33,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:32:33,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:32:33,715 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:32:33,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:32:33,716 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:32:33,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:32:33,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:32:33,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:32:33,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:32:33,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:32:33,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:32:33,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:32:33,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:32:33,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:32:33,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:32:33,721 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:32:33,721 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:32:33,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:32:33,722 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_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65bf47faf943da19c0d2d15e35f35ceed9dd68ed50ac4355a0589bd57bf3d155 [2022-11-18 18:32:34,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:32:34,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:32:34,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:32:34,182 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:32:34,183 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:32:34,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2022-11-18 18:32:34,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/data/6e027090c/a50188e75ae7478c8bd6b93945821dbc/FLAGaee671431 [2022-11-18 18:32:34,874 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:32:34,875 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2022-11-18 18:32:34,897 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/data/6e027090c/a50188e75ae7478c8bd6b93945821dbc/FLAGaee671431 [2022-11-18 18:32:35,200 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/data/6e027090c/a50188e75ae7478c8bd6b93945821dbc [2022-11-18 18:32:35,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:32:35,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:32:35,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:32:35,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:32:35,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:32:35,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8e3580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35, skipping insertion in model container [2022-11-18 18:32:35,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:32:35,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:32:35,648 WARN L234 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_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c[2476,2489] [2022-11-18 18:32:35,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:32:35,675 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:32:35,731 WARN L234 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_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c[2476,2489] [2022-11-18 18:32:35,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:32:35,762 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:32:35,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35 WrapperNode [2022-11-18 18:32:35,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:32:35,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:32:35,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:32:35,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:32:35,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,841 INFO L138 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2022-11-18 18:32:35,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:32:35,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:32:35,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:32:35,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:32:35,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,880 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:32:35,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:32:35,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:32:35,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:32:35,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (1/1) ... [2022-11-18 18:32:35,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:32:35,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:32:35,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:32:35,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:32:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:32:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 18:32:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 18:32:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 18:32:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 18:32:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 18:32:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 18:32:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 18:32:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 18:32:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:32:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:32:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:32:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 18:32:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 18:32:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:32:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:32:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:32:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:32:36,007 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:32:36,187 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:32:36,192 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:32:36,512 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:32:36,661 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:32:36,661 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 18:32:36,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:32:36 BoogieIcfgContainer [2022-11-18 18:32:36,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:32:36,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:32:36,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:32:36,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:32:36,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:32:35" (1/3) ... [2022-11-18 18:32:36,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270f29c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:32:36, skipping insertion in model container [2022-11-18 18:32:36,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:35" (2/3) ... [2022-11-18 18:32:36,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270f29c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:32:36, skipping insertion in model container [2022-11-18 18:32:36,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:32:36" (3/3) ... [2022-11-18 18:32:36,688 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2022-11-18 18:32:36,699 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:32:36,723 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:32:36,724 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:32:36,724 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:32:36,845 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 18:32:36,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 124 transitions, 280 flow [2022-11-18 18:32:36,993 INFO L130 PetriNetUnfolder]: 9/120 cut-off events. [2022-11-18 18:32:36,993 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 18:32:37,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 120 events. 9/120 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-11-18 18:32:37,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 124 transitions, 280 flow [2022-11-18 18:32:37,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 107 transitions, 238 flow [2022-11-18 18:32:37,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:32:37,031 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;@6ba68c94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:32:37,032 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-18 18:32:37,084 INFO L130 PetriNetUnfolder]: 9/106 cut-off events. [2022-11-18 18:32:37,085 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 18:32:37,085 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:32:37,086 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] [2022-11-18 18:32:37,087 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 18:32:37,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:37,094 INFO L85 PathProgramCache]: Analyzing trace with hash -245410147, now seen corresponding path program 1 times [2022-11-18 18:32:37,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:32:37,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769938022] [2022-11-18 18:32:37,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:37,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:32:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:37,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:32:37,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:32:37,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769938022] [2022-11-18 18:32:37,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769938022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:37,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:37,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:32:37,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491860408] [2022-11-18 18:32:37,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:37,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:32:37,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:32:37,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:32:37,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:32:37,576 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 124 [2022-11-18 18:32:37,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 107 transitions, 238 flow. Second operand has 2 states, 2 states have (on average 112.0) internal successors, (224), 2 states have internal predecessors, (224), 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) [2022-11-18 18:32:37,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:32:37,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 124 [2022-11-18 18:32:37,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:32:37,856 INFO L130 PetriNetUnfolder]: 121/483 cut-off events. [2022-11-18 18:32:37,856 INFO L131 PetriNetUnfolder]: For 106/107 co-relation queries the response was YES. [2022-11-18 18:32:37,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 483 events. 121/483 cut-off events. For 106/107 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2248 event pairs, 51 based on Foata normal form. 118/532 useless extension candidates. Maximal degree in co-relation 568. Up to 163 conditions per place. [2022-11-18 18:32:37,883 INFO L137 encePairwiseOnDemand]: 119/124 looper letters, 12 selfloop transitions, 0 changer transitions 1/102 dead transitions. [2022-11-18 18:32:37,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 102 transitions, 252 flow [2022-11-18 18:32:37,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:32:37,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 18:32:37,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 229 transitions. [2022-11-18 18:32:37,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9233870967741935 [2022-11-18 18:32:37,907 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 229 transitions. [2022-11-18 18:32:37,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 229 transitions. [2022-11-18 18:32:37,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:32:37,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 229 transitions. [2022-11-18 18:32:37,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 114.5) internal successors, (229), 2 states have internal predecessors, (229), 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) [2022-11-18 18:32:37,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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) [2022-11-18 18:32:37,933 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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) [2022-11-18 18:32:37,935 INFO L175 Difference]: Start difference. First operand has 111 places, 107 transitions, 238 flow. Second operand 2 states and 229 transitions. [2022-11-18 18:32:37,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 102 transitions, 252 flow [2022-11-18 18:32:37,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 102 transitions, 236 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-18 18:32:37,959 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 210 flow [2022-11-18 18:32:37,961 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=210, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2022-11-18 18:32:37,967 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, -7 predicate places. [2022-11-18 18:32:37,968 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 210 flow [2022-11-18 18:32:37,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 112.0) internal successors, (224), 2 states have internal predecessors, (224), 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) [2022-11-18 18:32:37,969 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:32:37,970 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] [2022-11-18 18:32:37,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:32:37,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 18:32:37,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:37,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1683241779, now seen corresponding path program 1 times [2022-11-18 18:32:37,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:32:37,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416919132] [2022-11-18 18:32:37,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:37,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:32:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:38,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:32:38,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:32:38,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416919132] [2022-11-18 18:32:38,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416919132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:38,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:38,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:32:38,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800360468] [2022-11-18 18:32:38,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:38,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:32:38,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:32:38,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:32:38,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:32:38,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 124 [2022-11-18 18:32:38,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 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) [2022-11-18 18:32:38,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:32:38,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 124 [2022-11-18 18:32:38,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:32:38,968 INFO L130 PetriNetUnfolder]: 90/412 cut-off events. [2022-11-18 18:32:38,969 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-18 18:32:38,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 412 events. 90/412 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1664 event pairs, 6 based on Foata normal form. 15/384 useless extension candidates. Maximal degree in co-relation 566. Up to 96 conditions per place. [2022-11-18 18:32:38,980 INFO L137 encePairwiseOnDemand]: 115/124 looper letters, 32 selfloop transitions, 5 changer transitions 5/125 dead transitions. [2022-11-18 18:32:38,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 125 transitions, 354 flow [2022-11-18 18:32:38,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:32:38,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:32:38,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 640 transitions. [2022-11-18 18:32:38,991 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8602150537634409 [2022-11-18 18:32:38,991 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 640 transitions. [2022-11-18 18:32:38,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 640 transitions. [2022-11-18 18:32:38,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:32:38,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 640 transitions. [2022-11-18 18:32:39,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.66666666666667) internal successors, (640), 6 states have internal predecessors, (640), 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) [2022-11-18 18:32:39,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 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) [2022-11-18 18:32:39,006 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 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) [2022-11-18 18:32:39,007 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 210 flow. Second operand 6 states and 640 transitions. [2022-11-18 18:32:39,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 125 transitions, 354 flow [2022-11-18 18:32:39,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 125 transitions, 354 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:32:39,014 INFO L231 Difference]: Finished difference. Result has 112 places, 104 transitions, 249 flow [2022-11-18 18:32:39,014 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=112, PETRI_TRANSITIONS=104} [2022-11-18 18:32:39,016 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 1 predicate places. [2022-11-18 18:32:39,016 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 104 transitions, 249 flow [2022-11-18 18:32:39,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 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) [2022-11-18 18:32:39,018 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:32:39,018 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] [2022-11-18 18:32:39,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:32:39,019 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 18:32:39,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:39,024 INFO L85 PathProgramCache]: Analyzing trace with hash -477291725, now seen corresponding path program 1 times [2022-11-18 18:32:39,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:32:39,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422856907] [2022-11-18 18:32:39,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:39,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:32:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:39,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:32:39,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:32:39,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422856907] [2022-11-18 18:32:39,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422856907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:39,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:39,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:32:39,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425086862] [2022-11-18 18:32:39,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:39,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:32:39,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:32:39,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:32:39,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:32:39,356 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 124 [2022-11-18 18:32:39,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 104 transitions, 249 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-18 18:32:39,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:32:39,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 124 [2022-11-18 18:32:39,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:32:41,372 INFO L130 PetriNetUnfolder]: 6774/11133 cut-off events. [2022-11-18 18:32:41,373 INFO L131 PetriNetUnfolder]: For 1971/1971 co-relation queries the response was YES. [2022-11-18 18:32:41,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22673 conditions, 11133 events. 6774/11133 cut-off events. For 1971/1971 co-relation queries the response was YES. Maximal size of possible extension queue 635. Compared 82314 event pairs, 2732 based on Foata normal form. 0/8403 useless extension candidates. Maximal degree in co-relation 22665. Up to 4576 conditions per place. [2022-11-18 18:32:41,489 INFO L137 encePairwiseOnDemand]: 118/124 looper letters, 83 selfloop transitions, 6 changer transitions 0/162 dead transitions. [2022-11-18 18:32:41,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 162 transitions, 600 flow [2022-11-18 18:32:41,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:32:41,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:32:41,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 531 transitions. [2022-11-18 18:32:41,492 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8564516129032258 [2022-11-18 18:32:41,492 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 531 transitions. [2022-11-18 18:32:41,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 531 transitions. [2022-11-18 18:32:41,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:32:41,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 531 transitions. [2022-11-18 18:32:41,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.2) internal successors, (531), 5 states have internal predecessors, (531), 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) [2022-11-18 18:32:41,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 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) [2022-11-18 18:32:41,497 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 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) [2022-11-18 18:32:41,497 INFO L175 Difference]: Start difference. First operand has 112 places, 104 transitions, 249 flow. Second operand 5 states and 531 transitions. [2022-11-18 18:32:41,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 162 transitions, 600 flow [2022-11-18 18:32:41,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 162 transitions, 596 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-11-18 18:32:41,506 INFO L231 Difference]: Finished difference. Result has 115 places, 109 transitions, 286 flow [2022-11-18 18:32:41,507 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=115, PETRI_TRANSITIONS=109} [2022-11-18 18:32:41,510 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 4 predicate places. [2022-11-18 18:32:41,510 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 109 transitions, 286 flow [2022-11-18 18:32:41,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-18 18:32:41,511 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:32:41,520 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] [2022-11-18 18:32:41,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:32:41,521 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 18:32:41,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:41,523 INFO L85 PathProgramCache]: Analyzing trace with hash -400868661, now seen corresponding path program 1 times [2022-11-18 18:32:41,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:32:41,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923739687] [2022-11-18 18:32:41,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:41,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:32:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:41,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:32:41,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:32:41,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923739687] [2022-11-18 18:32:41,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923739687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:41,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:41,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:32:41,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324765344] [2022-11-18 18:32:41,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:41,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:32:41,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:32:41,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:32:41,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:32:41,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 124 [2022-11-18 18:32:41,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 109 transitions, 286 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-18 18:32:41,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:32:41,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 124 [2022-11-18 18:32:41,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:32:45,398 INFO L130 PetriNetUnfolder]: 12254/22012 cut-off events. [2022-11-18 18:32:45,398 INFO L131 PetriNetUnfolder]: For 7507/7970 co-relation queries the response was YES. [2022-11-18 18:32:45,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47425 conditions, 22012 events. 12254/22012 cut-off events. For 7507/7970 co-relation queries the response was YES. Maximal size of possible extension queue 1137. Compared 196650 event pairs, 6446 based on Foata normal form. 404/20104 useless extension candidates. Maximal degree in co-relation 47415. Up to 8476 conditions per place. [2022-11-18 18:32:45,665 INFO L137 encePairwiseOnDemand]: 117/124 looper letters, 85 selfloop transitions, 6 changer transitions 0/168 dead transitions. [2022-11-18 18:32:45,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 168 transitions, 668 flow [2022-11-18 18:32:45,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:32:45,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:32:45,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 618 transitions. [2022-11-18 18:32:45,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8306451612903226 [2022-11-18 18:32:45,671 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 618 transitions. [2022-11-18 18:32:45,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 618 transitions. [2022-11-18 18:32:45,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:32:45,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 618 transitions. [2022-11-18 18:32:45,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.0) internal successors, (618), 6 states have internal predecessors, (618), 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) [2022-11-18 18:32:45,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 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) [2022-11-18 18:32:45,684 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 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) [2022-11-18 18:32:45,684 INFO L175 Difference]: Start difference. First operand has 115 places, 109 transitions, 286 flow. Second operand 6 states and 618 transitions. [2022-11-18 18:32:45,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 168 transitions, 668 flow [2022-11-18 18:32:45,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 168 transitions, 668 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:32:45,855 INFO L231 Difference]: Finished difference. Result has 123 places, 112 transitions, 318 flow [2022-11-18 18:32:45,856 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=123, PETRI_TRANSITIONS=112} [2022-11-18 18:32:45,858 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 12 predicate places. [2022-11-18 18:32:45,858 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 112 transitions, 318 flow [2022-11-18 18:32:45,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-18 18:32:45,860 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:32:45,860 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] [2022-11-18 18:32:45,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:32:45,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 18:32:45,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:45,863 INFO L85 PathProgramCache]: Analyzing trace with hash 768064303, now seen corresponding path program 2 times [2022-11-18 18:32:45,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:32:45,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937894041] [2022-11-18 18:32:45,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:45,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:32:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:32:46,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:32:46,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937894041] [2022-11-18 18:32:46,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937894041] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:32:46,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562814045] [2022-11-18 18:32:46,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:32:46,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:32:46,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:32:46,293 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:32:46,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:32:46,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:32:46,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:32:46,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:32:46,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:32:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:32:46,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:32:46,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:32:46,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562814045] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:32:46,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:32:46,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-11-18 18:32:46,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329050371] [2022-11-18 18:32:46,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:32:46,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:32:46,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:32:46,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:32:46,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:32:46,748 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 124 [2022-11-18 18:32:46,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 112 transitions, 318 flow. Second operand has 9 states, 9 states have (on average 93.11111111111111) internal successors, (838), 9 states have internal predecessors, (838), 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) [2022-11-18 18:32:46,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:32:46,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 124 [2022-11-18 18:32:46,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:32:50,777 INFO L130 PetriNetUnfolder]: 16396/27583 cut-off events. [2022-11-18 18:32:50,777 INFO L131 PetriNetUnfolder]: For 15289/16932 co-relation queries the response was YES. [2022-11-18 18:32:51,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66592 conditions, 27583 events. 16396/27583 cut-off events. For 15289/16932 co-relation queries the response was YES. Maximal size of possible extension queue 1522. Compared 238512 event pairs, 2294 based on Foata normal form. 1937/29059 useless extension candidates. Maximal degree in co-relation 66578. Up to 3358 conditions per place. [2022-11-18 18:32:51,218 INFO L137 encePairwiseOnDemand]: 116/124 looper letters, 189 selfloop transitions, 29 changer transitions 3/297 dead transitions. [2022-11-18 18:32:51,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 297 transitions, 1443 flow [2022-11-18 18:32:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:32:51,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 18:32:51,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1453 transitions. [2022-11-18 18:32:51,223 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8369815668202765 [2022-11-18 18:32:51,223 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1453 transitions. [2022-11-18 18:32:51,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1453 transitions. [2022-11-18 18:32:51,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:32:51,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1453 transitions. [2022-11-18 18:32:51,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 103.78571428571429) internal successors, (1453), 14 states have internal predecessors, (1453), 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) [2022-11-18 18:32:51,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 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) [2022-11-18 18:32:51,237 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 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) [2022-11-18 18:32:51,237 INFO L175 Difference]: Start difference. First operand has 123 places, 112 transitions, 318 flow. Second operand 14 states and 1453 transitions. [2022-11-18 18:32:51,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 297 transitions, 1443 flow [2022-11-18 18:32:51,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 297 transitions, 1437 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:32:51,367 INFO L231 Difference]: Finished difference. Result has 140 places, 140 transitions, 524 flow [2022-11-18 18:32:51,367 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=524, PETRI_PLACES=140, PETRI_TRANSITIONS=140} [2022-11-18 18:32:51,370 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 29 predicate places. [2022-11-18 18:32:51,371 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 140 transitions, 524 flow [2022-11-18 18:32:51,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 93.11111111111111) internal successors, (838), 9 states have internal predecessors, (838), 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) [2022-11-18 18:32:51,372 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:32:51,372 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] [2022-11-18 18:32:51,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:32:51,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:32:51,582 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 18:32:51,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:51,582 INFO L85 PathProgramCache]: Analyzing trace with hash -429321595, now seen corresponding path program 2 times [2022-11-18 18:32:51,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:32:51,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549070501] [2022-11-18 18:32:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:51,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:32:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:32:51,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:32:51,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549070501] [2022-11-18 18:32:51,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549070501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:51,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:51,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:32:51,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342291964] [2022-11-18 18:32:51,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:51,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:32:51,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:32:51,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:32:51,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:32:51,741 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 124 [2022-11-18 18:32:51,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 140 transitions, 524 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-18 18:32:51,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:32:51,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 124 [2022-11-18 18:32:51,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:32:56,965 INFO L130 PetriNetUnfolder]: 20798/34074 cut-off events. [2022-11-18 18:32:56,966 INFO L131 PetriNetUnfolder]: For 41532/43629 co-relation queries the response was YES. [2022-11-18 18:32:57,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96290 conditions, 34074 events. 20798/34074 cut-off events. For 41532/43629 co-relation queries the response was YES. Maximal size of possible extension queue 1808. Compared 298307 event pairs, 7837 based on Foata normal form. 2171/35773 useless extension candidates. Maximal degree in co-relation 96270. Up to 14148 conditions per place. [2022-11-18 18:32:57,678 INFO L137 encePairwiseOnDemand]: 117/124 looper letters, 155 selfloop transitions, 13 changer transitions 1/250 dead transitions. [2022-11-18 18:32:57,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 250 transitions, 1446 flow [2022-11-18 18:32:57,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:32:57,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:32:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 616 transitions. [2022-11-18 18:32:57,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8279569892473119 [2022-11-18 18:32:57,682 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 616 transitions. [2022-11-18 18:32:57,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 616 transitions. [2022-11-18 18:32:57,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:32:57,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 616 transitions. [2022-11-18 18:32:57,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 102.66666666666667) internal successors, (616), 6 states have internal predecessors, (616), 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) [2022-11-18 18:32:57,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 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) [2022-11-18 18:32:57,688 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 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) [2022-11-18 18:32:57,688 INFO L175 Difference]: Start difference. First operand has 140 places, 140 transitions, 524 flow. Second operand 6 states and 616 transitions. [2022-11-18 18:32:57,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 250 transitions, 1446 flow [2022-11-18 18:32:58,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 250 transitions, 1419 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-18 18:32:58,019 INFO L231 Difference]: Finished difference. Result has 147 places, 148 transitions, 646 flow [2022-11-18 18:32:58,020 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=646, PETRI_PLACES=147, PETRI_TRANSITIONS=148} [2022-11-18 18:32:58,023 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 36 predicate places. [2022-11-18 18:32:58,024 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 148 transitions, 646 flow [2022-11-18 18:32:58,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-18 18:32:58,025 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:32:58,025 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] [2022-11-18 18:32:58,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:32:58,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 18:32:58,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:58,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1371916567, now seen corresponding path program 3 times [2022-11-18 18:32:58,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:32:58,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293222693] [2022-11-18 18:32:58,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:58,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:32:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:58,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:32:58,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:32:58,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293222693] [2022-11-18 18:32:58,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293222693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:58,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:58,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:32:58,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758831196] [2022-11-18 18:32:58,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:58,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:32:58,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:32:58,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:32:58,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:32:58,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 124 [2022-11-18 18:32:58,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 148 transitions, 646 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-18 18:32:58,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:32:58,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 124 [2022-11-18 18:32:58,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:33:03,989 INFO L130 PetriNetUnfolder]: 21837/38718 cut-off events. [2022-11-18 18:33:03,989 INFO L131 PetriNetUnfolder]: For 58539/61835 co-relation queries the response was YES. [2022-11-18 18:33:04,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110518 conditions, 38718 events. 21837/38718 cut-off events. For 58539/61835 co-relation queries the response was YES. Maximal size of possible extension queue 1860. Compared 365602 event pairs, 13703 based on Foata normal form. 3078/40803 useless extension candidates. Maximal degree in co-relation 110494. Up to 17147 conditions per place. [2022-11-18 18:33:04,344 INFO L137 encePairwiseOnDemand]: 117/124 looper letters, 98 selfloop transitions, 12 changer transitions 16/203 dead transitions. [2022-11-18 18:33:04,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 203 transitions, 1184 flow [2022-11-18 18:33:04,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:33:04,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:33:04,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 618 transitions. [2022-11-18 18:33:04,350 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8306451612903226 [2022-11-18 18:33:04,350 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 618 transitions. [2022-11-18 18:33:04,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 618 transitions. [2022-11-18 18:33:04,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:33:04,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 618 transitions. [2022-11-18 18:33:04,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.0) internal successors, (618), 6 states have internal predecessors, (618), 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) [2022-11-18 18:33:04,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 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) [2022-11-18 18:33:04,356 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 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) [2022-11-18 18:33:04,356 INFO L175 Difference]: Start difference. First operand has 147 places, 148 transitions, 646 flow. Second operand 6 states and 618 transitions. [2022-11-18 18:33:04,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 203 transitions, 1184 flow [2022-11-18 18:33:05,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 203 transitions, 1168 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-11-18 18:33:05,179 INFO L231 Difference]: Finished difference. Result has 152 places, 148 transitions, 670 flow [2022-11-18 18:33:05,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=670, PETRI_PLACES=152, PETRI_TRANSITIONS=148} [2022-11-18 18:33:05,193 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 41 predicate places. [2022-11-18 18:33:05,193 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 148 transitions, 670 flow [2022-11-18 18:33:05,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-18 18:33:05,194 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:33:05,194 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] [2022-11-18 18:33:05,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:33:05,194 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 18:33:05,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:05,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1586761913, now seen corresponding path program 3 times [2022-11-18 18:33:05,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:05,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57243587] [2022-11-18 18:33:05,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:05,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:05,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:05,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:05,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57243587] [2022-11-18 18:33:05,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57243587] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:33:05,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667526451] [2022-11-18 18:33:05,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 18:33:05,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:33:05,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:33:05,340 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:33:05,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:33:05,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 18:33:05,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:33:05,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:33:05,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:33:05,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:05,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:33:05,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:05,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667526451] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:33:05,606 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:33:05,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-11-18 18:33:05,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031980491] [2022-11-18 18:33:05,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:33:05,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:33:05,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:05,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:33:05,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:33:05,610 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 124 [2022-11-18 18:33:05,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 148 transitions, 670 flow. Second operand has 9 states, 9 states have (on average 93.33333333333333) internal successors, (840), 9 states have internal predecessors, (840), 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) [2022-11-18 18:33:05,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:33:05,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 124 [2022-11-18 18:33:05,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:33:09,342 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][310], [111#L51-4true, Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, 1269#(and (<= 1 ~N~0) (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), 727#true, Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), 151#true, Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0)]) [2022-11-18 18:33:09,342 INFO L383 tUnfolder$Statistics]: this new event has 61 ancestors and is cut-off event [2022-11-18 18:33:09,342 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-18 18:33:09,342 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-18 18:33:09,343 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-18 18:33:09,748 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][310], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, 1269#(and (<= 1 ~N~0) (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), 727#true, Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), 151#true, Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0), 31#L52true]) [2022-11-18 18:33:09,748 INFO L383 tUnfolder$Statistics]: this new event has 62 ancestors and is cut-off event [2022-11-18 18:33:09,748 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-18 18:33:09,749 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-18 18:33:09,749 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-18 18:33:09,753 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][323], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, 1273#(and (< |thread2Thread1of1ForFork3_~i~1#1| ~N~0) (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), 727#true, Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), 151#true, Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0), 31#L52true]) [2022-11-18 18:33:09,753 INFO L383 tUnfolder$Statistics]: this new event has 62 ancestors and is cut-off event [2022-11-18 18:33:09,753 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-18 18:33:09,753 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-18 18:33:09,753 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-18 18:33:10,531 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][310], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, 1269#(and (<= 1 ~N~0) (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), 727#true, Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), 151#true, Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0), 78#L55true]) [2022-11-18 18:33:10,532 INFO L383 tUnfolder$Statistics]: this new event has 63 ancestors and is cut-off event [2022-11-18 18:33:10,532 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 18:33:10,532 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 18:33:10,532 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 18:33:10,539 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][323], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, 1273#(and (< |thread2Thread1of1ForFork3_~i~1#1| ~N~0) (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), 727#true, Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), 151#true, Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0), 78#L55true]) [2022-11-18 18:33:10,539 INFO L383 tUnfolder$Statistics]: this new event has 63 ancestors and is cut-off event [2022-11-18 18:33:10,539 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 18:33:10,539 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 18:33:10,540 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-18 18:33:10,855 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][310], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, 1269#(and (<= 1 ~N~0) (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), 29#L51-2true, 727#true, Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), 151#true, Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0)]) [2022-11-18 18:33:10,856 INFO L383 tUnfolder$Statistics]: this new event has 64 ancestors and is cut-off event [2022-11-18 18:33:10,856 INFO L386 tUnfolder$Statistics]: existing Event has 64 ancestors and is cut-off event [2022-11-18 18:33:10,856 INFO L386 tUnfolder$Statistics]: existing Event has 64 ancestors and is cut-off event [2022-11-18 18:33:10,856 INFO L386 tUnfolder$Statistics]: existing Event has 64 ancestors and is cut-off event [2022-11-18 18:33:10,863 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][323], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, 1273#(and (< |thread2Thread1of1ForFork3_~i~1#1| ~N~0) (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), 29#L51-2true, 727#true, Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), 151#true, Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0)]) [2022-11-18 18:33:10,864 INFO L383 tUnfolder$Statistics]: this new event has 64 ancestors and is cut-off event [2022-11-18 18:33:10,864 INFO L386 tUnfolder$Statistics]: existing Event has 64 ancestors and is cut-off event [2022-11-18 18:33:10,864 INFO L386 tUnfolder$Statistics]: existing Event has 64 ancestors and is cut-off event [2022-11-18 18:33:10,864 INFO L386 tUnfolder$Statistics]: existing Event has 64 ancestors and is cut-off event [2022-11-18 18:33:11,354 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][299], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, 65#L51-3true, Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 727#true, Black: 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), 151#true, Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0), 1261#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0))]) [2022-11-18 18:33:11,354 INFO L383 tUnfolder$Statistics]: this new event has 65 ancestors and is not cut-off event [2022-11-18 18:33:11,355 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is not cut-off event [2022-11-18 18:33:11,355 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is not cut-off event [2022-11-18 18:33:11,355 INFO L386 tUnfolder$Statistics]: existing Event has 65 ancestors and is not cut-off event [2022-11-18 18:33:12,030 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][323], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, 1273#(and (< |thread2Thread1of1ForFork3_~i~1#1| ~N~0) (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 727#true, Black: 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), 151#true, Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0), 31#L52true]) [2022-11-18 18:33:12,030 INFO L383 tUnfolder$Statistics]: this new event has 67 ancestors and is cut-off event [2022-11-18 18:33:12,030 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-18 18:33:12,031 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-18 18:33:12,031 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-18 18:33:12,199 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][299], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), 15#L51-5true, Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 727#true, Black: 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), 151#true, Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0), 1261#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0))]) [2022-11-18 18:33:12,199 INFO L383 tUnfolder$Statistics]: this new event has 67 ancestors and is not cut-off event [2022-11-18 18:33:12,199 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is not cut-off event [2022-11-18 18:33:12,199 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is not cut-off event [2022-11-18 18:33:12,199 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is not cut-off event [2022-11-18 18:33:12,232 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][323], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, 1273#(and (< |thread2Thread1of1ForFork3_~i~1#1| ~N~0) (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 727#true, Black: 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), 151#true, Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0), 78#L55true]) [2022-11-18 18:33:12,232 INFO L383 tUnfolder$Statistics]: this new event has 68 ancestors and is cut-off event [2022-11-18 18:33:12,232 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-18 18:33:12,232 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-18 18:33:12,233 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-18 18:33:12,453 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][323], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, 1273#(and (< |thread2Thread1of1ForFork3_~i~1#1| ~N~0) (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), 45#L92-2true, Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 29#L51-2true, 727#true, Black: 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), 151#true, Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0)]) [2022-11-18 18:33:12,453 INFO L383 tUnfolder$Statistics]: this new event has 69 ancestors and is cut-off event [2022-11-18 18:33:12,454 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 18:33:12,454 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 18:33:12,454 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-18 18:33:12,894 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([370] L72-4-->L72-5: Formula: (not (< |v_thread4Thread1of1ForFork2_~i~3#1_3| v_~N~0_7)) InVars {thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} OutVars{thread4Thread1of1ForFork2_~i~3#1=|v_thread4Thread1of1ForFork2_~i~3#1_3|, ~N~0=v_~N~0_7} AuxVars[] AssignedVars[][299], [Black: 177#(<= 1 ~N~0), Black: 693#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0)), Black: 696#(and (<= 1 ~N~0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 176#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 178#(and (<= 1 ~N~0) (= thread3Thread1of1ForFork0_~i~2 0)), 131#true, Black: 722#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 141#(and (= ~counter2~0 ~counter1~0) (= ~counter2~0 0)), Black: 716#(= |thread4Thread1of1ForFork2_~i~3#1| 0), 21#L72-5true, 720#(and (= |thread4Thread1of1ForFork2_~i~3#1| 0) (<= ~N~0 0)), Black: 154#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 153#(= thread1Thread1of1ForFork1_~i~0 0), Black: 155#(and (<= (+ thread1Thread1of1ForFork1_~i~0 1) ~N~0) (= |thread4Thread1of1ForFork2_~i~3#1| 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 736#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 733#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 727#true, Black: 162#(= |thread2Thread1of1ForFork3_~i~1#1| 0), 151#true, Black: 166#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0)), Black: 168#(and (= |thread2Thread1of1ForFork3_~i~1#1| 0) (<= ~N~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), 702#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0) (= thread3Thread1of1ForFork0_~i~2 0)), 57#L62-4true, 136#(= ~counter2~0 0), 76#L93-2true, 1261#(and (<= 1 ~N~0) (<= 0 thread1Thread1of1ForFork1_~i~0))]) [2022-11-18 18:33:12,894 INFO L383 tUnfolder$Statistics]: this new event has 72 ancestors and is not cut-off event [2022-11-18 18:33:12,894 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is not cut-off event [2022-11-18 18:33:12,894 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is not cut-off event [2022-11-18 18:33:12,894 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is not cut-off event [2022-11-18 18:33:13,155 INFO L130 PetriNetUnfolder]: 34375/53857 cut-off events. [2022-11-18 18:33:13,155 INFO L131 PetriNetUnfolder]: For 103607/107348 co-relation queries the response was YES. [2022-11-18 18:33:13,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169608 conditions, 53857 events. 34375/53857 cut-off events. For 103607/107348 co-relation queries the response was YES. Maximal size of possible extension queue 2427. Compared 455853 event pairs, 3957 based on Foata normal form. 4143/56838 useless extension candidates. Maximal degree in co-relation 169582. Up to 8169 conditions per place. [2022-11-18 18:33:14,015 INFO L137 encePairwiseOnDemand]: 116/124 looper letters, 217 selfloop transitions, 56 changer transitions 3/367 dead transitions. [2022-11-18 18:33:14,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 367 transitions, 2298 flow [2022-11-18 18:33:14,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:33:14,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 18:33:14,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1458 transitions. [2022-11-18 18:33:14,022 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8398617511520737 [2022-11-18 18:33:14,022 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1458 transitions. [2022-11-18 18:33:14,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1458 transitions. [2022-11-18 18:33:14,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:33:14,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1458 transitions. [2022-11-18 18:33:14,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 104.14285714285714) internal successors, (1458), 14 states have internal predecessors, (1458), 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) [2022-11-18 18:33:14,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 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) [2022-11-18 18:33:14,035 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 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) [2022-11-18 18:33:14,035 INFO L175 Difference]: Start difference. First operand has 152 places, 148 transitions, 670 flow. Second operand 14 states and 1458 transitions. [2022-11-18 18:33:14,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 367 transitions, 2298 flow [2022-11-18 18:33:15,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 367 transitions, 2268 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-11-18 18:33:15,019 INFO L231 Difference]: Finished difference. Result has 164 places, 189 transitions, 1019 flow [2022-11-18 18:33:15,020 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1019, PETRI_PLACES=164, PETRI_TRANSITIONS=189} [2022-11-18 18:33:15,021 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 53 predicate places. [2022-11-18 18:33:15,021 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 189 transitions, 1019 flow [2022-11-18 18:33:15,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 93.33333333333333) internal successors, (840), 9 states have internal predecessors, (840), 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) [2022-11-18 18:33:15,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:33:15,022 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] [2022-11-18 18:33:15,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:33:15,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:33:15,224 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 18:33:15,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:15,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1138961861, now seen corresponding path program 4 times [2022-11-18 18:33:15,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:15,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339542446] [2022-11-18 18:33:15,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:15,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:15,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:15,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:15,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339542446] [2022-11-18 18:33:15,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339542446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:15,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:15,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:33:15,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366670085] [2022-11-18 18:33:15,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:15,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:33:15,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:15,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:33:15,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:33:15,340 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 124 [2022-11-18 18:33:15,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 189 transitions, 1019 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-18 18:33:15,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:33:15,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 124 [2022-11-18 18:33:15,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:33:27,767 INFO L130 PetriNetUnfolder]: 39349/68695 cut-off events. [2022-11-18 18:33:27,767 INFO L131 PetriNetUnfolder]: For 147872/152529 co-relation queries the response was YES. [2022-11-18 18:33:28,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206533 conditions, 68695 events. 39349/68695 cut-off events. For 147872/152529 co-relation queries the response was YES. Maximal size of possible extension queue 2933. Compared 676448 event pairs, 19419 based on Foata normal form. 4396/72231 useless extension candidates. Maximal degree in co-relation 206505. Up to 27955 conditions per place. [2022-11-18 18:33:28,387 INFO L137 encePairwiseOnDemand]: 117/124 looper letters, 174 selfloop transitions, 20 changer transitions 13/299 dead transitions. [2022-11-18 18:33:28,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 299 transitions, 2176 flow [2022-11-18 18:33:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:33:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:33:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 615 transitions. [2022-11-18 18:33:28,391 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8266129032258065 [2022-11-18 18:33:28,391 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 615 transitions. [2022-11-18 18:33:28,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 615 transitions. [2022-11-18 18:33:28,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:33:28,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 615 transitions. [2022-11-18 18:33:28,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 102.5) internal successors, (615), 6 states have internal predecessors, (615), 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) [2022-11-18 18:33:28,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 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) [2022-11-18 18:33:28,394 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 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) [2022-11-18 18:33:28,394 INFO L175 Difference]: Start difference. First operand has 164 places, 189 transitions, 1019 flow. Second operand 6 states and 615 transitions. [2022-11-18 18:33:28,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 299 transitions, 2176 flow [2022-11-18 18:33:30,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 299 transitions, 2170 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-11-18 18:33:30,534 INFO L231 Difference]: Finished difference. Result has 172 places, 195 transitions, 1123 flow [2022-11-18 18:33:30,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=1013, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1123, PETRI_PLACES=172, PETRI_TRANSITIONS=195} [2022-11-18 18:33:30,535 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, 61 predicate places. [2022-11-18 18:33:30,535 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 195 transitions, 1123 flow [2022-11-18 18:33:30,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-18 18:33:30,536 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:33:30,536 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] [2022-11-18 18:33:30,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:33:30,536 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-18 18:33:30,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:30,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1738472131, now seen corresponding path program 4 times [2022-11-18 18:33:30,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:30,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271608582] [2022-11-18 18:33:30,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:30,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:30,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:30,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271608582] [2022-11-18 18:33:30,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271608582] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:33:30,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53141308] [2022-11-18 18:33:30,975 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 18:33:30,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:33:30,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:33:30,977 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:33:30,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db21c98-2b39-4a38-bafe-dc9e68d45fbb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:33:31,102 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 18:33:31,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:33:31,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:33:31,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:33:31,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:31,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:33:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:33:31,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53141308] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:33:31,209 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:33:31,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-11-18 18:33:31,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210256542] [2022-11-18 18:33:31,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:33:31,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:33:31,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:31,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:33:31,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:33:31,213 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 124 [2022-11-18 18:33:31,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 195 transitions, 1123 flow. Second operand has 9 states, 9 states have (on average 93.22222222222223) internal successors, (839), 9 states have internal predecessors, (839), 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) [2022-11-18 18:33:31,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:33:31,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 124 [2022-11-18 18:33:31,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand