./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/bigshot_s.i --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_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/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_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/bigshot_s.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/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_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/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 4d8c741fd238f074816319de9a9bd5d97cd9b35eb7f53a276be973ea0c31ecbe --- 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 20:11:47,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:11:47,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:11:47,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:11:47,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:11:47,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:11:47,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:11:47,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:11:47,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:11:47,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:11:47,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:11:47,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:11:47,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:11:47,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:11:47,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:11:47,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:11:47,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:11:47,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:11:47,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:11:47,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:11:47,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:11:47,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:11:47,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:11:47,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:11:47,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:11:47,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:11:47,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:11:47,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:11:47,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:11:47,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:11:47,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:11:47,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:11:47,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:11:47,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:11:47,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:11:47,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:11:47,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:11:47,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:11:47,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:11:47,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:11:47,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:11:47,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:11:47,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:11:47,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:11:47,629 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:11:47,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:11:47,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:11:47,631 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:11:47,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:11:47,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:11:47,632 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:11:47,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:11:47,633 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:11:47,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:11:47,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:11:47,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:11:47,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:11:47,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:11:47,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:11:47,635 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:11:47,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:11:47,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:11:47,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:11:47,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:11:47,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:11:47,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:11:47,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:11:47,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:11:47,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:11:47,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:11:47,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:11:47,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:11:47,639 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:11:47,639 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:11:47,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:11:47,640 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_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d8c741fd238f074816319de9a9bd5d97cd9b35eb7f53a276be973ea0c31ecbe [2022-11-18 20:11:47,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:11:47,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:11:47,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:11:47,938 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:11:47,943 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:11:47,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread/bigshot_s.i [2022-11-18 20:11:48,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/data/e09fec934/cf6f4d87d43e4198b1ce2bc61aa56b3a/FLAG1a5698872 [2022-11-18 20:11:48,713 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:11:48,714 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/sv-benchmarks/c/pthread/bigshot_s.i [2022-11-18 20:11:48,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/data/e09fec934/cf6f4d87d43e4198b1ce2bc61aa56b3a/FLAG1a5698872 [2022-11-18 20:11:48,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/data/e09fec934/cf6f4d87d43e4198b1ce2bc61aa56b3a [2022-11-18 20:11:48,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:11:48,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:11:48,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:11:48,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:11:48,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:11:48,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:11:48" (1/1) ... [2022-11-18 20:11:48,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e76b416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:48, skipping insertion in model container [2022-11-18 20:11:48,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:11:48" (1/1) ... [2022-11-18 20:11:48,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:11:49,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:11:49,630 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_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/sv-benchmarks/c/pthread/bigshot_s.i[55202,55215] [2022-11-18 20:11:49,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:11:49,659 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:11:49,717 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_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/sv-benchmarks/c/pthread/bigshot_s.i[55202,55215] [2022-11-18 20:11:49,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:11:49,805 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:11:49,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49 WrapperNode [2022-11-18 20:11:49,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:11:49,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:11:49,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:11:49,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:11:49,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (1/1) ... [2022-11-18 20:11:49,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (1/1) ... [2022-11-18 20:11:49,890 INFO L138 Inliner]: procedures = 323, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2022-11-18 20:11:49,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:11:49,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:11:49,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:11:49,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:11:49,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (1/1) ... [2022-11-18 20:11:49,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (1/1) ... [2022-11-18 20:11:49,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (1/1) ... [2022-11-18 20:11:49,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (1/1) ... [2022-11-18 20:11:49,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (1/1) ... [2022-11-18 20:11:49,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (1/1) ... [2022-11-18 20:11:49,931 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (1/1) ... [2022-11-18 20:11:49,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (1/1) ... [2022-11-18 20:11:49,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:11:49,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:11:49,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:11:49,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:11:49,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (1/1) ... [2022-11-18 20:11:49,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:11:49,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:49,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:11:49,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:11:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:11:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:11:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 20:11:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:11:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:11:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:11:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:11:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:11:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:11:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:11:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:11:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:11:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:11:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:11:50,031 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 20:11:50,262 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:11:50,264 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:11:50,524 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:11:50,530 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:11:50,530 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:11:50,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:50 BoogieIcfgContainer [2022-11-18 20:11:50,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:11:50,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:11:50,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:11:50,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:11:50,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:11:48" (1/3) ... [2022-11-18 20:11:50,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548a4eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:11:50, skipping insertion in model container [2022-11-18 20:11:50,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:11:49" (2/3) ... [2022-11-18 20:11:50,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548a4eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:11:50, skipping insertion in model container [2022-11-18 20:11:50,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:50" (3/3) ... [2022-11-18 20:11:50,543 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s.i [2022-11-18 20:11:50,551 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:11:50,561 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:11:50,562 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:11:50,562 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:11:50,649 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:11:50,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 95 transitions, 206 flow [2022-11-18 20:11:50,741 INFO L130 PetriNetUnfolder]: 5/93 cut-off events. [2022-11-18 20:11:50,742 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:11:50,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 93 events. 5/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-18 20:11:50,746 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 95 transitions, 206 flow [2022-11-18 20:11:50,750 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 79 transitions, 170 flow [2022-11-18 20:11:50,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:11:50,765 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;@f4515cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:11:50,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-18 20:11:50,788 INFO L130 PetriNetUnfolder]: 4/78 cut-off events. [2022-11-18 20:11:50,788 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:11:50,789 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:11:50,789 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] [2022-11-18 20:11:50,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 20:11:50,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:50,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1504715845, now seen corresponding path program 1 times [2022-11-18 20:11:50,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:50,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263304673] [2022-11-18 20:11:50,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:50,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:51,295 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 20:11:51,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:51,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263304673] [2022-11-18 20:11:51,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263304673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:51,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:51,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:11:51,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231044494] [2022-11-18 20:11:51,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:51,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:11:51,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:51,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:11:51,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:11:51,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 95 [2022-11-18 20:11:51,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 79 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 20:11:51,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:11:51,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 95 [2022-11-18 20:11:51,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:11:51,408 INFO L130 PetriNetUnfolder]: 2/77 cut-off events. [2022-11-18 20:11:51,408 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 20:11:51,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 77 events. 2/77 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 48. Up to 8 conditions per place. [2022-11-18 20:11:51,410 INFO L137 encePairwiseOnDemand]: 90/95 looper letters, 9 selfloop transitions, 3 changer transitions 0/77 dead transitions. [2022-11-18 20:11:51,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 77 transitions, 190 flow [2022-11-18 20:11:51,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:11:51,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:11:51,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 409 transitions. [2022-11-18 20:11:51,424 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8610526315789474 [2022-11-18 20:11:51,425 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 409 transitions. [2022-11-18 20:11:51,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 409 transitions. [2022-11-18 20:11:51,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:11:51,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 409 transitions. [2022-11-18 20:11:51,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.8) internal successors, (409), 5 states have internal predecessors, (409), 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 20:11:51,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 states have internal predecessors, (570), 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 20:11:51,440 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 states have internal predecessors, (570), 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 20:11:51,442 INFO L175 Difference]: Start difference. First operand has 82 places, 79 transitions, 170 flow. Second operand 5 states and 409 transitions. [2022-11-18 20:11:51,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 77 transitions, 190 flow [2022-11-18 20:11:51,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 77 transitions, 182 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:11:51,449 INFO L231 Difference]: Finished difference. Result has 82 places, 77 transitions, 164 flow [2022-11-18 20:11:51,451 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=164, PETRI_PLACES=82, PETRI_TRANSITIONS=77} [2022-11-18 20:11:51,454 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2022-11-18 20:11:51,455 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 164 flow [2022-11-18 20:11:51,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 20:11:51,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:11:51,456 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] [2022-11-18 20:11:51,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:11:51,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 20:11:51,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:51,457 INFO L85 PathProgramCache]: Analyzing trace with hash 112165706, now seen corresponding path program 1 times [2022-11-18 20:11:51,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:51,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578316826] [2022-11-18 20:11:51,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:51,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:51,728 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 20:11:51,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:51,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578316826] [2022-11-18 20:11:51,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578316826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:51,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:51,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:11:51,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784938871] [2022-11-18 20:11:51,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:51,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:11:51,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:51,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:11:51,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:11:51,737 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2022-11-18 20:11:51,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 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 20:11:51,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:11:51,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2022-11-18 20:11:51,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:11:51,851 INFO L130 PetriNetUnfolder]: 1/81 cut-off events. [2022-11-18 20:11:51,851 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:11:51,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 81 events. 1/81 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs, 0 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 64. Up to 13 conditions per place. [2022-11-18 20:11:51,852 INFO L137 encePairwiseOnDemand]: 91/95 looper letters, 12 selfloop transitions, 0 changer transitions 4/80 dead transitions. [2022-11-18 20:11:51,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 80 transitions, 202 flow [2022-11-18 20:11:51,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:11:51,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:11:51,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 402 transitions. [2022-11-18 20:11:51,878 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8463157894736842 [2022-11-18 20:11:51,878 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 402 transitions. [2022-11-18 20:11:51,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 402 transitions. [2022-11-18 20:11:51,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:11:51,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 402 transitions. [2022-11-18 20:11:51,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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 20:11:51,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 states have internal predecessors, (570), 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 20:11:51,883 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 states have internal predecessors, (570), 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 20:11:51,884 INFO L175 Difference]: Start difference. First operand has 82 places, 77 transitions, 164 flow. Second operand 5 states and 402 transitions. [2022-11-18 20:11:51,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 80 transitions, 202 flow [2022-11-18 20:11:51,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 80 transitions, 197 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:11:51,887 INFO L231 Difference]: Finished difference. Result has 86 places, 76 transitions, 163 flow [2022-11-18 20:11:51,887 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=163, PETRI_PLACES=86, PETRI_TRANSITIONS=76} [2022-11-18 20:11:51,888 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, 4 predicate places. [2022-11-18 20:11:51,888 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 76 transitions, 163 flow [2022-11-18 20:11:51,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 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 20:11:51,889 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:11:51,889 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] [2022-11-18 20:11:51,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:11:51,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 20:11:51,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:51,891 INFO L85 PathProgramCache]: Analyzing trace with hash -818905009, now seen corresponding path program 1 times [2022-11-18 20:11:51,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:51,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657373221] [2022-11-18 20:11:51,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:51,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:52,546 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 20:11:52,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:52,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657373221] [2022-11-18 20:11:52,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657373221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:52,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:52,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:11:52,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022677626] [2022-11-18 20:11:52,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:52,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:11:52,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:52,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:11:52,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:11:52,551 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 95 [2022-11-18 20:11:52,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 76 transitions, 163 flow. Second operand has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 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 20:11:52,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:11:52,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 95 [2022-11-18 20:11:52,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:11:52,960 INFO L130 PetriNetUnfolder]: 16/122 cut-off events. [2022-11-18 20:11:52,961 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:11:52,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 122 events. 16/122 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 163 event pairs, 1 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 199. Up to 20 conditions per place. [2022-11-18 20:11:52,963 INFO L137 encePairwiseOnDemand]: 85/95 looper letters, 36 selfloop transitions, 10 changer transitions 0/87 dead transitions. [2022-11-18 20:11:52,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 87 transitions, 277 flow [2022-11-18 20:11:52,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:11:52,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:11:52,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 577 transitions. [2022-11-18 20:11:52,966 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6073684210526316 [2022-11-18 20:11:52,966 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 577 transitions. [2022-11-18 20:11:52,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 577 transitions. [2022-11-18 20:11:52,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:11:52,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 577 transitions. [2022-11-18 20:11:52,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 57.7) internal successors, (577), 10 states have internal predecessors, (577), 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 20:11:52,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 95.0) internal successors, (1045), 11 states have internal predecessors, (1045), 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 20:11:52,972 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 95.0) internal successors, (1045), 11 states have internal predecessors, (1045), 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 20:11:52,972 INFO L175 Difference]: Start difference. First operand has 86 places, 76 transitions, 163 flow. Second operand 10 states and 577 transitions. [2022-11-18 20:11:52,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 87 transitions, 277 flow [2022-11-18 20:11:52,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 87 transitions, 271 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-18 20:11:52,975 INFO L231 Difference]: Finished difference. Result has 91 places, 80 transitions, 199 flow [2022-11-18 20:11:52,976 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=199, PETRI_PLACES=91, PETRI_TRANSITIONS=80} [2022-11-18 20:11:52,976 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2022-11-18 20:11:52,977 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 80 transitions, 199 flow [2022-11-18 20:11:52,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 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 20:11:52,978 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:11:52,978 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:52,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:11:52,978 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 20:11:52,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:52,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1195803001, now seen corresponding path program 1 times [2022-11-18 20:11:52,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:52,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66933744] [2022-11-18 20:11:52,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:52,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:53,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:53,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:53,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66933744] [2022-11-18 20:11:53,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66933744] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:11:53,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895274883] [2022-11-18 20:11:53,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:53,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:53,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:53,814 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:11:53,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:11:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:53,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-18 20:11:53,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:54,172 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 20:11:54,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 20:11:54,236 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 20:11:54,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-18 20:11:54,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:11:54,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:11:54,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:11:54,795 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-18 20:11:54,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 20 [2022-11-18 20:11:54,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:11:54,977 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:11:54,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-11-18 20:11:55,091 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:11:55,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-18 20:11:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:55,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:11:56,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:56,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895274883] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:11:56,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:11:56,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 20, 18] total 43 [2022-11-18 20:11:56,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088639395] [2022-11-18 20:11:56,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:11:56,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-18 20:11:56,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:56,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-18 20:11:56,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1658, Unknown=0, NotChecked=0, Total=1806 [2022-11-18 20:11:56,498 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 95 [2022-11-18 20:11:56,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 80 transitions, 199 flow. Second operand has 43 states, 43 states have (on average 39.06976744186046) internal successors, (1680), 43 states have internal predecessors, (1680), 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 20:11:56,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:11:56,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 95 [2022-11-18 20:11:56,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:11:58,032 INFO L130 PetriNetUnfolder]: 29/175 cut-off events. [2022-11-18 20:11:58,033 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-18 20:11:58,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 175 events. 29/175 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 356 event pairs, 2 based on Foata normal form. 3/177 useless extension candidates. Maximal degree in co-relation 348. Up to 35 conditions per place. [2022-11-18 20:11:58,034 INFO L137 encePairwiseOnDemand]: 76/95 looper letters, 53 selfloop transitions, 18 changer transitions 10/110 dead transitions. [2022-11-18 20:11:58,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 110 transitions, 436 flow [2022-11-18 20:11:58,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 20:11:58,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-18 20:11:58,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 875 transitions. [2022-11-18 20:11:58,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41866028708133973 [2022-11-18 20:11:58,039 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 875 transitions. [2022-11-18 20:11:58,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 875 transitions. [2022-11-18 20:11:58,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:11:58,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 875 transitions. [2022-11-18 20:11:58,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 39.77272727272727) internal successors, (875), 22 states have internal predecessors, (875), 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 20:11:58,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 95.0) internal successors, (2185), 23 states have internal predecessors, (2185), 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 20:11:58,047 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 95.0) internal successors, (2185), 23 states have internal predecessors, (2185), 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 20:11:58,047 INFO L175 Difference]: Start difference. First operand has 91 places, 80 transitions, 199 flow. Second operand 22 states and 875 transitions. [2022-11-18 20:11:58,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 110 transitions, 436 flow [2022-11-18 20:11:58,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 110 transitions, 429 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:11:58,051 INFO L231 Difference]: Finished difference. Result has 114 places, 85 transitions, 270 flow [2022-11-18 20:11:58,051 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=270, PETRI_PLACES=114, PETRI_TRANSITIONS=85} [2022-11-18 20:11:58,052 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, 32 predicate places. [2022-11-18 20:11:58,052 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 85 transitions, 270 flow [2022-11-18 20:11:58,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 39.06976744186046) internal successors, (1680), 43 states have internal predecessors, (1680), 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 20:11:58,054 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:11:58,054 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:58,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:11:58,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:58,260 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 20:11:58,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:58,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1599172469, now seen corresponding path program 2 times [2022-11-18 20:11:58,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:58,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113826249] [2022-11-18 20:11:58,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:58,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:59,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:59,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113826249] [2022-11-18 20:11:59,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113826249] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:11:59,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333323514] [2022-11-18 20:11:59,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:11:59,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:11:59,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:11:59,125 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:11:59,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:11:59,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:11:59,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:11:59,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-18 20:11:59,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:11:59,366 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 20:11:59,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 20:11:59,422 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 20:11:59,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 20:11:59,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:11:59,601 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 20:11:59,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-18 20:11:59,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:11:59,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:12:00,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:12:00,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:12:00,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 20:12:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:00,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:12:00,461 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_112 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_112) |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src#1.base|) (+ 2 |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src#1.offset| |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~offset14#1|)))) is different from false [2022-11-18 20:12:00,479 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_112 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_112) |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src#1.base|) (+ 3 |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src#1.offset| |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~offset14#1|)))) is different from false [2022-11-18 20:12:01,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 230 [2022-11-18 20:12:01,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 218 [2022-11-18 20:12:01,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 107 [2022-11-18 20:12:01,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 198 [2022-11-18 20:12:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 18 not checked. [2022-11-18 20:12:02,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333323514] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:12:02,218 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:12:02,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 45 [2022-11-18 20:12:02,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140112593] [2022-11-18 20:12:02,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:12:02,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-18 20:12:02,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:02,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-18 20:12:02,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1619, Unknown=17, NotChecked=166, Total=1980 [2022-11-18 20:12:02,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2022-11-18 20:12:02,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 85 transitions, 270 flow. Second operand has 45 states, 45 states have (on average 47.93333333333333) internal successors, (2157), 45 states have internal predecessors, (2157), 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 20:12:02,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:02,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2022-11-18 20:12:02,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:03,413 INFO L130 PetriNetUnfolder]: 32/202 cut-off events. [2022-11-18 20:12:03,414 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-11-18 20:12:03,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 202 events. 32/202 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 490 event pairs, 1 based on Foata normal form. 2/203 useless extension candidates. Maximal degree in co-relation 471. Up to 54 conditions per place. [2022-11-18 20:12:03,416 INFO L137 encePairwiseOnDemand]: 81/95 looper letters, 58 selfloop transitions, 20 changer transitions 4/116 dead transitions. [2022-11-18 20:12:03,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 116 transitions, 555 flow [2022-11-18 20:12:03,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:12:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-18 20:12:03,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 840 transitions. [2022-11-18 20:12:03,420 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5201238390092879 [2022-11-18 20:12:03,420 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 840 transitions. [2022-11-18 20:12:03,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 840 transitions. [2022-11-18 20:12:03,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:03,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 840 transitions. [2022-11-18 20:12:03,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 49.411764705882355) internal successors, (840), 17 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 20:12:03,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 95.0) internal successors, (1710), 18 states have internal predecessors, (1710), 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 20:12:03,428 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 95.0) internal successors, (1710), 18 states have internal predecessors, (1710), 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 20:12:03,428 INFO L175 Difference]: Start difference. First operand has 114 places, 85 transitions, 270 flow. Second operand 17 states and 840 transitions. [2022-11-18 20:12:03,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 116 transitions, 555 flow [2022-11-18 20:12:03,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 116 transitions, 488 flow, removed 16 selfloop flow, removed 16 redundant places. [2022-11-18 20:12:03,435 INFO L231 Difference]: Finished difference. Result has 115 places, 94 transitions, 329 flow [2022-11-18 20:12:03,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=329, PETRI_PLACES=115, PETRI_TRANSITIONS=94} [2022-11-18 20:12:03,439 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, 33 predicate places. [2022-11-18 20:12:03,439 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 94 transitions, 329 flow [2022-11-18 20:12:03,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 47.93333333333333) internal successors, (2157), 45 states have internal predecessors, (2157), 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 20:12:03,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:03,443 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:03,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:12:03,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:12:03,657 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 20:12:03,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:03,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1424461861, now seen corresponding path program 3 times [2022-11-18 20:12:03,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:03,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888840658] [2022-11-18 20:12:03,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:03,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:04,411 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:04,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:04,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888840658] [2022-11-18 20:12:04,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888840658] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:12:04,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295456667] [2022-11-18 20:12:04,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:12:04,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:12:04,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:12:04,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:12:04,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:12:04,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-18 20:12:04,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:12:04,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-18 20:12:04,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:12:04,845 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-18 20:12:04,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-18 20:12:04,947 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-18 20:12:04,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-18 20:12:05,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:12:05,332 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-18 20:12:05,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2022-11-18 20:12:05,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-18 20:12:05,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:12:06,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:12:06,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:12:06,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 20:12:06,268 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:06,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:12:06,502 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_156 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_156) |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src#1.base|) (+ 2 |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_src#1.offset| |c_thread2Thread1of1ForFork1_#Ultimate.C_strcpy_#t~offset14#1|)))) is different from false [2022-11-18 20:12:07,978 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:12:07,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 494 treesize of output 466 [2022-11-18 20:12:07,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 454 treesize of output 438 [2022-11-18 20:12:08,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 438 treesize of output 406 [2022-11-18 20:12:08,849 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2022-11-18 20:12:08,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295456667] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:12:08,850 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:12:08,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 17] total 48 [2022-11-18 20:12:08,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818252676] [2022-11-18 20:12:08,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:12:08,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-18 20:12:08,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:12:08,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-18 20:12:08,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1957, Unknown=26, NotChecked=90, Total=2256 [2022-11-18 20:12:08,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 95 [2022-11-18 20:12:08,858 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 94 transitions, 329 flow. Second operand has 48 states, 48 states have (on average 47.9375) internal successors, (2301), 48 states have internal predecessors, (2301), 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 20:12:08,858 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:12:08,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 95 [2022-11-18 20:12:08,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:12:10,987 INFO L130 PetriNetUnfolder]: 33/208 cut-off events. [2022-11-18 20:12:10,987 INFO L131 PetriNetUnfolder]: For 215/215 co-relation queries the response was YES. [2022-11-18 20:12:10,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 208 events. 33/208 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 529 event pairs, 3 based on Foata normal form. 1/208 useless extension candidates. Maximal degree in co-relation 571. Up to 29 conditions per place. [2022-11-18 20:12:10,993 INFO L137 encePairwiseOnDemand]: 80/95 looper letters, 53 selfloop transitions, 23 changer transitions 4/114 dead transitions. [2022-11-18 20:12:10,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 114 transitions, 584 flow [2022-11-18 20:12:10,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 20:12:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-18 20:12:10,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 929 transitions. [2022-11-18 20:12:10,998 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5146814404432133 [2022-11-18 20:12:10,998 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 929 transitions. [2022-11-18 20:12:10,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 929 transitions. [2022-11-18 20:12:10,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:12:10,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 929 transitions. [2022-11-18 20:12:11,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 48.89473684210526) internal successors, (929), 19 states have internal predecessors, (929), 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 20:12:11,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 95.0) internal successors, (1900), 20 states have internal predecessors, (1900), 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 20:12:11,005 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 95.0) internal successors, (1900), 20 states have internal predecessors, (1900), 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 20:12:11,006 INFO L175 Difference]: Start difference. First operand has 115 places, 94 transitions, 329 flow. Second operand 19 states and 929 transitions. [2022-11-18 20:12:11,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 114 transitions, 584 flow [2022-11-18 20:12:11,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 114 transitions, 564 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-11-18 20:12:11,012 INFO L231 Difference]: Finished difference. Result has 127 places, 97 transitions, 390 flow [2022-11-18 20:12:11,012 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=390, PETRI_PLACES=127, PETRI_TRANSITIONS=97} [2022-11-18 20:12:11,015 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, 45 predicate places. [2022-11-18 20:12:11,016 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 97 transitions, 390 flow [2022-11-18 20:12:11,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 47.9375) internal successors, (2301), 48 states have internal predecessors, (2301), 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 20:12:11,018 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:12:11,018 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:12:11,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:12:11,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:12:11,224 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 20:12:11,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:12:11,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1424096535, now seen corresponding path program 4 times [2022-11-18 20:12:11,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:12:11,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361966453] [2022-11-18 20:12:11,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:12:11,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:12:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:12:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:12,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:12:12,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361966453] [2022-11-18 20:12:12,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361966453] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:12:12,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135304332] [2022-11-18 20:12:12,121 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:12:12,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:12:12,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:12:12,127 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:12:12,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:12:12,261 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:12:12,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:12:12,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-18 20:12:12,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:12:12,383 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 20:12:12,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 20:12:12,426 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 20:12:12,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-18 20:12:12,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:12:12,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:12:12,883 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:12:12,891 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-18 20:12:12,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 20 [2022-11-18 20:12:13,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:12:13,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:12:13,033 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:12:13,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 35 [2022-11-18 20:12:13,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:12:13,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:12:13,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:12:13,176 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:12:13,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-11-18 20:12:13,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:12:13,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:12:13,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:12:13,327 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:12:13,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-11-18 20:12:13,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:12:13,445 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:12:13,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-11-18 20:12:13,562 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:12:13,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-11-18 20:12:13,703 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:12:13,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:13:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 12 refuted. 6 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:13:02,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135304332] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:13:02,188 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:13:02,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23, 22] total 53 [2022-11-18 20:13:02,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923083389] [2022-11-18 20:13:02,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:13:02,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-18 20:13:02,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:02,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-18 20:13:02,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=2510, Unknown=16, NotChecked=0, Total=2756 [2022-11-18 20:13:02,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 95 [2022-11-18 20:13:02,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 97 transitions, 390 flow. Second operand has 53 states, 53 states have (on average 38.132075471698116) internal successors, (2021), 53 states have internal predecessors, (2021), 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 20:13:02,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:02,196 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 95 [2022-11-18 20:13:02,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:17,591 WARN L233 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:13:52,338 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:14:05,585 INFO L130 PetriNetUnfolder]: 37/378 cut-off events. [2022-11-18 20:14:05,585 INFO L131 PetriNetUnfolder]: For 534/534 co-relation queries the response was YES. [2022-11-18 20:14:05,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 378 events. 37/378 cut-off events. For 534/534 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1566 event pairs, 3 based on Foata normal form. 8/385 useless extension candidates. Maximal degree in co-relation 1119. Up to 38 conditions per place. [2022-11-18 20:14:05,587 INFO L137 encePairwiseOnDemand]: 75/95 looper letters, 52 selfloop transitions, 19 changer transitions 142/241 dead transitions. [2022-11-18 20:14:05,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 241 transitions, 1541 flow [2022-11-18 20:14:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-18 20:14:05,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2022-11-18 20:14:05,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 2595 transitions. [2022-11-18 20:14:05,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40170278637770895 [2022-11-18 20:14:05,596 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 2595 transitions. [2022-11-18 20:14:05,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 2595 transitions. [2022-11-18 20:14:05,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:05,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 2595 transitions. [2022-11-18 20:14:05,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 38.161764705882355) internal successors, (2595), 68 states have internal predecessors, (2595), 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 20:14:05,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 95.0) internal successors, (6555), 69 states have internal predecessors, (6555), 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 20:14:05,619 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 95.0) internal successors, (6555), 69 states have internal predecessors, (6555), 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 20:14:05,619 INFO L175 Difference]: Start difference. First operand has 127 places, 97 transitions, 390 flow. Second operand 68 states and 2595 transitions. [2022-11-18 20:14:05,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 241 transitions, 1541 flow [2022-11-18 20:14:05,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 241 transitions, 1446 flow, removed 22 selfloop flow, removed 15 redundant places. [2022-11-18 20:14:05,627 INFO L231 Difference]: Finished difference. Result has 210 places, 90 transitions, 419 flow [2022-11-18 20:14:05,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=68, PETRI_FLOW=419, PETRI_PLACES=210, PETRI_TRANSITIONS=90} [2022-11-18 20:14:05,628 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, 128 predicate places. [2022-11-18 20:14:05,628 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 90 transitions, 419 flow [2022-11-18 20:14:05,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 38.132075471698116) internal successors, (2021), 53 states have internal predecessors, (2021), 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 20:14:05,629 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:05,630 INFO L209 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:14:05,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:14:05,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:14:05,841 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 20:14:05,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:05,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1349791373, now seen corresponding path program 5 times [2022-11-18 20:14:05,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:05,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25034902] [2022-11-18 20:14:05,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:05,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:06,819 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:06,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:06,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25034902] [2022-11-18 20:14:06,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25034902] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:14:06,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638925141] [2022-11-18 20:14:06,820 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:14:06,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:14:06,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:14:06,823 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:14:06,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:14:06,955 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-18 20:14:06,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:14:06,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-18 20:14:06,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:14:07,070 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-18 20:14:07,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-18 20:14:07,117 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 20:14:07,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-18 20:14:07,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:14:07,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-18 20:14:07,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:14:07,650 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-18 20:14:07,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 20 [2022-11-18 20:14:07,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:14:07,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:14:07,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:14:07,799 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:14:07,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:14:07,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:14:07,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:14:07,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:14:07,911 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:14:07,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:14:08,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:14:08,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:14:08,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:14:08,035 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:14:08,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:14:08,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:14:08,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:14:08,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:14:08,145 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:14:08,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:14:08,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:14:08,261 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:14:08,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-11-18 20:14:08,388 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-18 20:14:08,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-18 20:14:08,508 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 18 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:08,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:15:14,115 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 23 proven. 15 refuted. 5 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 20:15:14,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638925141] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:15:14,116 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:15:14,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 24, 22] total 54 [2022-11-18 20:15:14,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843617031] [2022-11-18 20:15:14,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:15:14,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-18 20:15:14,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:14,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-18 20:15:14,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=2596, Unknown=20, NotChecked=0, Total=2862 [2022-11-18 20:15:14,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 95 [2022-11-18 20:15:14,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 90 transitions, 419 flow. Second operand has 54 states, 54 states have (on average 38.22222222222222) internal successors, (2064), 54 states have internal predecessors, (2064), 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 20:15:14,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:14,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 95 [2022-11-18 20:15:14,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:16,999 INFO L130 PetriNetUnfolder]: 5/120 cut-off events. [2022-11-18 20:15:16,999 INFO L131 PetriNetUnfolder]: For 364/364 co-relation queries the response was YES. [2022-11-18 20:15:17,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 120 events. 5/120 cut-off events. For 364/364 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 1 based on Foata normal form. 2/122 useless extension candidates. Maximal degree in co-relation 373. Up to 9 conditions per place. [2022-11-18 20:15:17,001 INFO L137 encePairwiseOnDemand]: 74/95 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2022-11-18 20:15:17,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 107 transitions, 694 flow [2022-11-18 20:15:17,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 20:15:17,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-18 20:15:17,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1097 transitions. [2022-11-18 20:15:17,004 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39818511796733214 [2022-11-18 20:15:17,004 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1097 transitions. [2022-11-18 20:15:17,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1097 transitions. [2022-11-18 20:15:17,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:17,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1097 transitions. [2022-11-18 20:15:17,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 37.827586206896555) internal successors, (1097), 29 states have internal predecessors, (1097), 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 20:15:17,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 95.0) internal successors, (2850), 30 states have internal predecessors, (2850), 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 20:15:17,013 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 95.0) internal successors, (2850), 30 states have internal predecessors, (2850), 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 20:15:17,014 INFO L175 Difference]: Start difference. First operand has 210 places, 90 transitions, 419 flow. Second operand 29 states and 1097 transitions. [2022-11-18 20:15:17,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 107 transitions, 694 flow [2022-11-18 20:15:17,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 107 transitions, 502 flow, removed 69 selfloop flow, removed 52 redundant places. [2022-11-18 20:15:17,018 INFO L231 Difference]: Finished difference. Result has 136 places, 0 transitions, 0 flow [2022-11-18 20:15:17,019 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=0, PETRI_PLACES=136, PETRI_TRANSITIONS=0} [2022-11-18 20:15:17,019 INFO L288 CegarLoopForPetriNet]: 82 programPoint places, 54 predicate places. [2022-11-18 20:15:17,020 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 0 transitions, 0 flow [2022-11-18 20:15:17,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 38.22222222222222) internal successors, (2064), 54 states have internal predecessors, (2064), 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 20:15:17,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-18 20:15:17,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-11-18 20:15:17,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-11-18 20:15:17,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:15:17,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-18 20:15:17,230 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2022-11-18 20:15:17,234 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:15:17,234 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:15:17,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:15:17 BasicIcfg [2022-11-18 20:15:17,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:15:17,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:15:17,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:15:17,239 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:15:17,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:50" (3/4) ... [2022-11-18 20:15:17,242 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:15:17,248 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 20:15:17,249 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 20:15:17,252 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-18 20:15:17,253 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-18 20:15:17,253 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 20:15:17,253 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:15:17,253 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:15:17,285 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:15:17,285 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:15:17,290 INFO L158 Benchmark]: Toolchain (without parser) took 208325.71ms. Allocated memory was 132.1MB in the beginning and 308.3MB in the end (delta: 176.2MB). Free memory was 96.2MB in the beginning and 182.4MB in the end (delta: -86.2MB). Peak memory consumption was 90.7MB. Max. memory is 16.1GB. [2022-11-18 20:15:17,291 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 41.2MB in the beginning and 41.2MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:15:17,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 841.30ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 85.5MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:15:17,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.11ms. Allocated memory is still 132.1MB. Free memory was 85.5MB in the beginning and 82.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:15:17,292 INFO L158 Benchmark]: Boogie Preprocessor took 43.36ms. Allocated memory is still 132.1MB. Free memory was 82.7MB in the beginning and 81.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:15:17,292 INFO L158 Benchmark]: RCFGBuilder took 596.20ms. Allocated memory is still 132.1MB. Free memory was 81.3MB in the beginning and 66.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 20:15:17,293 INFO L158 Benchmark]: TraceAbstraction took 206703.27ms. Allocated memory was 132.1MB in the beginning and 308.3MB in the end (delta: 176.2MB). Free memory was 66.0MB in the beginning and 185.1MB in the end (delta: -119.1MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2022-11-18 20:15:17,294 INFO L158 Benchmark]: Witness Printer took 47.48ms. Allocated memory is still 308.3MB. Free memory was 185.1MB in the beginning and 182.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:15:17,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 41.2MB in the beginning and 41.2MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 841.30ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 85.5MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.11ms. Allocated memory is still 132.1MB. Free memory was 85.5MB in the beginning and 82.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.36ms. Allocated memory is still 132.1MB. Free memory was 82.7MB in the beginning and 81.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 596.20ms. Allocated memory is still 132.1MB. Free memory was 81.3MB in the beginning and 66.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 206703.27ms. Allocated memory was 132.1MB in the beginning and 308.3MB in the end (delta: 176.2MB). Free memory was 66.0MB in the beginning and 185.1MB in the end (delta: -119.1MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. * Witness Printer took 47.48ms. Allocated memory is still 308.3MB. Free memory was 185.1MB in the beginning and 182.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1107]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 118 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 206.5s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 72.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2726 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2726 mSDsluCounter, 1983 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1753 IncrementalHoareTripleChecker+Unchecked, 1857 mSDsCounter, 419 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4572 IncrementalHoareTripleChecker+Invalid, 6744 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 419 mSolverCounterUnsat, 126 mSDtfsCounter, 4572 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1198 GetRequests, 789 SyntacticMatches, 24 SemanticMatches, 385 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 7592 ImplicationChecksByTransitivity, 186.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=419occurred in iteration=7, InterpolantAutomatonStates: 175, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 132.2s InterpolantComputationTime, 1074 NumberOfCodeBlocks, 1074 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1490 ConstructedInterpolants, 222 QuantifiedInterpolants, 20493 SizeOfPredicates, 79 NumberOfNonLiveVariables, 1189 ConjunctsInSsa, 238 ConjunctsInUnsatCore, 18 InterpolantComputations, 3 PerfectInterpolantSequences, 79/408 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:15:17,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce1f3c91-4b7d-49d4-9c55-90b909df72ea/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE