./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/unroll-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:20:45,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:20:45,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:20:45,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:20:45,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:20:45,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:20:45,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:20:45,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:20:45,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:20:45,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:20:45,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:20:45,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:20:45,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:20:45,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:20:45,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:20:45,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:20:45,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:20:45,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:20:45,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:20:45,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:20:45,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:20:45,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:20:45,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:20:45,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:20:45,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:20:45,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:20:45,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:20:45,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:20:45,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:20:45,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:20:45,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:20:45,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:20:45,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:20:45,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:20:45,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:20:45,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:20:45,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:20:45,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:20:45,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:20:45,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:20:45,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:20:45,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:20:45,938 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:20:45,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:20:45,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:20:45,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:20:45,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:20:45,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:20:45,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:20:45,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:20:45,947 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:20:45,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:20:45,948 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:20:45,949 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:20:45,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:20:45,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:20:45,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:20:45,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:20:45,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:20:45,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:20:45,950 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:20:45,950 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:20:45,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:20:45,951 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:20:45,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:20:45,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:20:45,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:20:45,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:20:45,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:20:45,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:20:45,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:20:45,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:20:45,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:20:45,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:20:45,954 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:20:45,954 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:20:45,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:20:45,955 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_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf [2022-11-21 16:20:46,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:20:46,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:20:46,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:20:46,335 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:20:46,335 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:20:46,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/unroll-2.wvr.c [2022-11-21 16:20:49,694 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:20:49,986 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:20:49,987 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/sv-benchmarks/c/weaver/unroll-2.wvr.c [2022-11-21 16:20:49,999 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/data/883345bb1/30025b53fbcc48098951998e3f423776/FLAG15f6354c7 [2022-11-21 16:20:50,025 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/data/883345bb1/30025b53fbcc48098951998e3f423776 [2022-11-21 16:20:50,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:20:50,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:20:50,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:20:50,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:20:50,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:20:50,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5456f3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50, skipping insertion in model container [2022-11-21 16:20:50,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:20:50,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:20:50,333 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/sv-benchmarks/c/weaver/unroll-2.wvr.c[2428,2441] [2022-11-21 16:20:50,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:20:50,351 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:20:50,378 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/sv-benchmarks/c/weaver/unroll-2.wvr.c[2428,2441] [2022-11-21 16:20:50,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:20:50,398 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:20:50,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50 WrapperNode [2022-11-21 16:20:50,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:20:50,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:20:50,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:20:50,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:20:50,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,456 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 246 [2022-11-21 16:20:50,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:20:50,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:20:50,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:20:50,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:20:50,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,503 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:20:50,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:20:50,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:20:50,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:20:50,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (1/1) ... [2022-11-21 16:20:50,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:20:50,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:20:50,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:20:50,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:20:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:20:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 16:20:50,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 16:20:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 16:20:50,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 16:20:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:20:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:20:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:20:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:20:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:20:50,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:20:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:20:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:20:50,623 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:20:50,776 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:20:50,779 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:20:51,574 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:20:51,591 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:20:51,591 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 16:20:51,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:51 BoogieIcfgContainer [2022-11-21 16:20:51,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:20:51,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:20:51,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:20:51,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:20:51,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:20:50" (1/3) ... [2022-11-21 16:20:51,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab77b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:20:51, skipping insertion in model container [2022-11-21 16:20:51,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:50" (2/3) ... [2022-11-21 16:20:51,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab77b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:20:51, skipping insertion in model container [2022-11-21 16:20:51,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:51" (3/3) ... [2022-11-21 16:20:51,615 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.c [2022-11-21 16:20:51,626 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:20:51,640 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:20:51,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-21 16:20:51,641 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:20:51,866 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:20:51,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 309 places, 319 transitions, 654 flow [2022-11-21 16:20:52,122 INFO L130 PetriNetUnfolder]: 17/317 cut-off events. [2022-11-21 16:20:52,122 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:20:52,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 317 events. 17/317 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 501 event pairs, 0 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 176. Up to 2 conditions per place. [2022-11-21 16:20:52,137 INFO L82 GeneralOperation]: Start removeDead. Operand has 309 places, 319 transitions, 654 flow [2022-11-21 16:20:52,156 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 290 places, 299 transitions, 610 flow [2022-11-21 16:20:52,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:20:52,185 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;@39932490, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:20:52,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2022-11-21 16:20:52,191 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-11-21 16:20:52,191 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:20:52,192 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:20:52,192 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] [2022-11-21 16:20:52,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:20:52,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash 150152261, now seen corresponding path program 1 times [2022-11-21 16:20:52,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:52,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350363494] [2022-11-21 16:20:52,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:52,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:52,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:52,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350363494] [2022-11-21 16:20:52,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350363494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:52,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:52,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:20:52,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436097129] [2022-11-21 16:20:52,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:52,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:20:52,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:52,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:20:52,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:52,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 319 [2022-11-21 16:20:52,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 299 transitions, 610 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:52,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:20:52,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 319 [2022-11-21 16:20:52,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:20:52,873 INFO L130 PetriNetUnfolder]: 39/798 cut-off events. [2022-11-21 16:20:52,874 INFO L131 PetriNetUnfolder]: For 20/50 co-relation queries the response was YES. [2022-11-21 16:20:52,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 798 events. 39/798 cut-off events. For 20/50 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3788 event pairs, 15 based on Foata normal form. 18/658 useless extension candidates. Maximal degree in co-relation 665. Up to 55 conditions per place. [2022-11-21 16:20:52,886 INFO L137 encePairwiseOnDemand]: 306/319 looper letters, 16 selfloop transitions, 2 changer transitions 4/288 dead transitions. [2022-11-21 16:20:52,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 288 transitions, 624 flow [2022-11-21 16:20:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:20:52,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:20:52,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 893 transitions. [2022-11-21 16:20:52,920 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9331243469174504 [2022-11-21 16:20:52,921 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 893 transitions. [2022-11-21 16:20:52,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 893 transitions. [2022-11-21 16:20:52,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:20:52,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 893 transitions. [2022-11-21 16:20:52,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:52,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:52,955 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:52,958 INFO L175 Difference]: Start difference. First operand has 290 places, 299 transitions, 610 flow. Second operand 3 states and 893 transitions. [2022-11-21 16:20:52,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 288 transitions, 624 flow [2022-11-21 16:20:52,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 288 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:20:52,981 INFO L231 Difference]: Finished difference. Result has 287 places, 284 transitions, 576 flow [2022-11-21 16:20:52,984 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=576, PETRI_PLACES=287, PETRI_TRANSITIONS=284} [2022-11-21 16:20:52,992 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -3 predicate places. [2022-11-21 16:20:52,992 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 284 transitions, 576 flow [2022-11-21 16:20:52,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:52,994 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:20:52,995 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] [2022-11-21 16:20:52,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:20:52,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:20:52,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:52,997 INFO L85 PathProgramCache]: Analyzing trace with hash 81775376, now seen corresponding path program 1 times [2022-11-21 16:20:52,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:52,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808456693] [2022-11-21 16:20:52,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:52,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:53,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:53,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:53,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808456693] [2022-11-21 16:20:53,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808456693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:53,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:53,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:20:53,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951382914] [2022-11-21 16:20:53,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:53,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:20:53,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:53,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:20:53,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:53,158 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 319 [2022-11-21 16:20:53,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 284 transitions, 576 flow. Second operand has 3 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:53,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:20:53,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 319 [2022-11-21 16:20:53,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:20:53,521 INFO L130 PetriNetUnfolder]: 66/884 cut-off events. [2022-11-21 16:20:53,522 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-21 16:20:53,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 884 events. 66/884 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4034 event pairs, 27 based on Foata normal form. 0/710 useless extension candidates. Maximal degree in co-relation 962. Up to 98 conditions per place. [2022-11-21 16:20:53,531 INFO L137 encePairwiseOnDemand]: 316/319 looper letters, 22 selfloop transitions, 2 changer transitions 0/283 dead transitions. [2022-11-21 16:20:53,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 283 transitions, 622 flow [2022-11-21 16:20:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:20:53,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:20:53,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 871 transitions. [2022-11-21 16:20:53,535 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.910135841170324 [2022-11-21 16:20:53,536 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 871 transitions. [2022-11-21 16:20:53,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 871 transitions. [2022-11-21 16:20:53,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:20:53,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 871 transitions. [2022-11-21 16:20:53,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 290.3333333333333) internal successors, (871), 3 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:53,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:53,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:53,544 INFO L175 Difference]: Start difference. First operand has 287 places, 284 transitions, 576 flow. Second operand 3 states and 871 transitions. [2022-11-21 16:20:53,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 283 transitions, 622 flow [2022-11-21 16:20:53,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 283 transitions, 618 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:20:53,554 INFO L231 Difference]: Finished difference. Result has 282 places, 283 transitions, 574 flow [2022-11-21 16:20:53,555 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=282, PETRI_TRANSITIONS=283} [2022-11-21 16:20:53,556 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -8 predicate places. [2022-11-21 16:20:53,556 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 283 transitions, 574 flow [2022-11-21 16:20:53,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:53,557 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:20:53,558 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] [2022-11-21 16:20:53,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:20:53,558 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:20:53,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:53,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1405754548, now seen corresponding path program 1 times [2022-11-21 16:20:53,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:53,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24995900] [2022-11-21 16:20:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:53,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:53,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:53,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:53,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24995900] [2022-11-21 16:20:53,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24995900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:53,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:53,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:20:53,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027142147] [2022-11-21 16:20:53,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:53,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:20:53,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:53,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:20:53,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:53,677 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 319 [2022-11-21 16:20:53,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 283 transitions, 574 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:53,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:20:53,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 319 [2022-11-21 16:20:53,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:20:53,896 INFO L130 PetriNetUnfolder]: 45/758 cut-off events. [2022-11-21 16:20:53,897 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-21 16:20:53,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 758 events. 45/758 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3157 event pairs, 14 based on Foata normal form. 0/628 useless extension candidates. Maximal degree in co-relation 787. Up to 57 conditions per place. [2022-11-21 16:20:53,907 INFO L137 encePairwiseOnDemand]: 313/319 looper letters, 15 selfloop transitions, 1 changer transitions 0/278 dead transitions. [2022-11-21 16:20:53,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 278 transitions, 596 flow [2022-11-21 16:20:53,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:20:53,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:20:53,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 876 transitions. [2022-11-21 16:20:53,913 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9153605015673981 [2022-11-21 16:20:53,913 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 876 transitions. [2022-11-21 16:20:53,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 876 transitions. [2022-11-21 16:20:53,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:20:53,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 876 transitions. [2022-11-21 16:20:53,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:53,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:53,923 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:53,923 INFO L175 Difference]: Start difference. First operand has 282 places, 283 transitions, 574 flow. Second operand 3 states and 876 transitions. [2022-11-21 16:20:53,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 278 transitions, 596 flow [2022-11-21 16:20:53,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 278 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:20:53,932 INFO L231 Difference]: Finished difference. Result has 277 places, 278 transitions, 562 flow [2022-11-21 16:20:53,932 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=277, PETRI_TRANSITIONS=278} [2022-11-21 16:20:53,934 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -13 predicate places. [2022-11-21 16:20:53,935 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 278 transitions, 562 flow [2022-11-21 16:20:53,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:53,936 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:20:53,936 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] [2022-11-21 16:20:53,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:20:53,937 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:20:53,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:53,938 INFO L85 PathProgramCache]: Analyzing trace with hash 563939520, now seen corresponding path program 1 times [2022-11-21 16:20:53,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:53,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434180919] [2022-11-21 16:20:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:53,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:54,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:54,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:54,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434180919] [2022-11-21 16:20:54,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434180919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:54,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:54,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:20:54,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362236587] [2022-11-21 16:20:54,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:54,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:20:54,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:54,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:20:54,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:54,067 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 319 [2022-11-21 16:20:54,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 278 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:54,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:20:54,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 319 [2022-11-21 16:20:54,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:20:54,314 INFO L130 PetriNetUnfolder]: 62/809 cut-off events. [2022-11-21 16:20:54,314 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-21 16:20:54,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 809 events. 62/809 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3553 event pairs, 27 based on Foata normal form. 0/667 useless extension candidates. Maximal degree in co-relation 870. Up to 89 conditions per place. [2022-11-21 16:20:54,321 INFO L137 encePairwiseOnDemand]: 316/319 looper letters, 16 selfloop transitions, 2 changer transitions 0/277 dead transitions. [2022-11-21 16:20:54,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 277 transitions, 596 flow [2022-11-21 16:20:54,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:20:54,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:20:54,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 883 transitions. [2022-11-21 16:20:54,324 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.922675026123302 [2022-11-21 16:20:54,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 883 transitions. [2022-11-21 16:20:54,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 883 transitions. [2022-11-21 16:20:54,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:20:54,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 883 transitions. [2022-11-21 16:20:54,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:54,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:54,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:54,332 INFO L175 Difference]: Start difference. First operand has 277 places, 278 transitions, 562 flow. Second operand 3 states and 883 transitions. [2022-11-21 16:20:54,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 277 transitions, 596 flow [2022-11-21 16:20:54,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 277 transitions, 595 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:20:54,338 INFO L231 Difference]: Finished difference. Result has 277 places, 277 transitions, 563 flow [2022-11-21 16:20:54,339 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=563, PETRI_PLACES=277, PETRI_TRANSITIONS=277} [2022-11-21 16:20:54,340 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -13 predicate places. [2022-11-21 16:20:54,341 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 277 transitions, 563 flow [2022-11-21 16:20:54,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:54,342 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:20:54,342 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] [2022-11-21 16:20:54,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:20:54,343 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:20:54,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:54,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1963314716, now seen corresponding path program 1 times [2022-11-21 16:20:54,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:54,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249841748] [2022-11-21 16:20:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:54,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:55,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:55,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:55,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249841748] [2022-11-21 16:20:55,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249841748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:55,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:55,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:20:55,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510792018] [2022-11-21 16:20:55,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:55,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:20:55,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:55,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:20:55,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:20:55,147 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 319 [2022-11-21 16:20:55,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 277 transitions, 563 flow. Second operand has 6 states, 6 states have (on average 257.8333333333333) internal successors, (1547), 6 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:55,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:20:55,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 319 [2022-11-21 16:20:55,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:20:56,912 INFO L130 PetriNetUnfolder]: 1424/7348 cut-off events. [2022-11-21 16:20:56,913 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-21 16:20:56,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9407 conditions, 7348 events. 1424/7348 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 72333 event pairs, 1134 based on Foata normal form. 0/5905 useless extension candidates. Maximal degree in co-relation 9370. Up to 2041 conditions per place. [2022-11-21 16:20:56,997 INFO L137 encePairwiseOnDemand]: 313/319 looper letters, 45 selfloop transitions, 5 changer transitions 0/276 dead transitions. [2022-11-21 16:20:56,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 276 transitions, 661 flow [2022-11-21 16:20:56,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:20:56,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:20:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1587 transitions. [2022-11-21 16:20:57,003 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.829153605015674 [2022-11-21 16:20:57,003 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1587 transitions. [2022-11-21 16:20:57,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1587 transitions. [2022-11-21 16:20:57,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:20:57,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1587 transitions. [2022-11-21 16:20:57,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 264.5) internal successors, (1587), 6 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,017 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,017 INFO L175 Difference]: Start difference. First operand has 277 places, 277 transitions, 563 flow. Second operand 6 states and 1587 transitions. [2022-11-21 16:20:57,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 276 transitions, 661 flow [2022-11-21 16:20:57,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 276 transitions, 657 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:20:57,025 INFO L231 Difference]: Finished difference. Result has 279 places, 276 transitions, 567 flow [2022-11-21 16:20:57,026 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=557, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=567, PETRI_PLACES=279, PETRI_TRANSITIONS=276} [2022-11-21 16:20:57,030 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -11 predicate places. [2022-11-21 16:20:57,031 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 276 transitions, 567 flow [2022-11-21 16:20:57,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.8333333333333) internal successors, (1547), 6 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,033 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:20:57,034 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:57,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:20:57,035 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:20:57,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:57,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2023739075, now seen corresponding path program 1 times [2022-11-21 16:20:57,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:57,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412602250] [2022-11-21 16:20:57,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:57,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:57,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:57,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:57,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412602250] [2022-11-21 16:20:57,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412602250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:57,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:57,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:20:57,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820844871] [2022-11-21 16:20:57,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:57,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:20:57,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:57,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:20:57,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:57,129 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 319 [2022-11-21 16:20:57,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 276 transitions, 567 flow. Second operand has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:20:57,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 319 [2022-11-21 16:20:57,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:20:57,259 INFO L130 PetriNetUnfolder]: 28/667 cut-off events. [2022-11-21 16:20:57,260 INFO L131 PetriNetUnfolder]: For 4/20 co-relation queries the response was YES. [2022-11-21 16:20:57,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 667 events. 28/667 cut-off events. For 4/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2818 event pairs, 8 based on Foata normal form. 0/562 useless extension candidates. Maximal degree in co-relation 696. Up to 32 conditions per place. [2022-11-21 16:20:57,266 INFO L137 encePairwiseOnDemand]: 315/319 looper letters, 11 selfloop transitions, 1 changer transitions 0/273 dead transitions. [2022-11-21 16:20:57,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 273 transitions, 585 flow [2022-11-21 16:20:57,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:20:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:20:57,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 888 transitions. [2022-11-21 16:20:57,270 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9278996865203761 [2022-11-21 16:20:57,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 888 transitions. [2022-11-21 16:20:57,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 888 transitions. [2022-11-21 16:20:57,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:20:57,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 888 transitions. [2022-11-21 16:20:57,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,279 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,279 INFO L175 Difference]: Start difference. First operand has 279 places, 276 transitions, 567 flow. Second operand 3 states and 888 transitions. [2022-11-21 16:20:57,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 273 transitions, 585 flow [2022-11-21 16:20:57,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 273 transitions, 575 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:20:57,331 INFO L231 Difference]: Finished difference. Result has 273 places, 273 transitions, 553 flow [2022-11-21 16:20:57,332 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=553, PETRI_PLACES=273, PETRI_TRANSITIONS=273} [2022-11-21 16:20:57,333 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -17 predicate places. [2022-11-21 16:20:57,333 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 273 transitions, 553 flow [2022-11-21 16:20:57,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,334 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:20:57,334 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:57,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:20:57,334 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:20:57,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:57,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1182070903, now seen corresponding path program 1 times [2022-11-21 16:20:57,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:57,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539044001] [2022-11-21 16:20:57,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:57,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:57,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:57,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539044001] [2022-11-21 16:20:57,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539044001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:57,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:57,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:20:57,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282899019] [2022-11-21 16:20:57,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:57,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:20:57,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:57,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:20:57,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:57,420 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 319 [2022-11-21 16:20:57,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 273 transitions, 553 flow. Second operand has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:20:57,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 319 [2022-11-21 16:20:57,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:20:57,494 INFO L130 PetriNetUnfolder]: 18/326 cut-off events. [2022-11-21 16:20:57,495 INFO L131 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-11-21 16:20:57,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 326 events. 18/326 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 743 event pairs, 3 based on Foata normal form. 1/295 useless extension candidates. Maximal degree in co-relation 340. Up to 21 conditions per place. [2022-11-21 16:20:57,498 INFO L137 encePairwiseOnDemand]: 312/319 looper letters, 13 selfloop transitions, 3 changer transitions 0/270 dead transitions. [2022-11-21 16:20:57,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 270 transitions, 580 flow [2022-11-21 16:20:57,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:20:57,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:20:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 884 transitions. [2022-11-21 16:20:57,501 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9237199582027168 [2022-11-21 16:20:57,502 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 884 transitions. [2022-11-21 16:20:57,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 884 transitions. [2022-11-21 16:20:57,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:20:57,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 884 transitions. [2022-11-21 16:20:57,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,508 INFO L175 Difference]: Start difference. First operand has 273 places, 273 transitions, 553 flow. Second operand 3 states and 884 transitions. [2022-11-21 16:20:57,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 270 transitions, 580 flow [2022-11-21 16:20:57,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 270 transitions, 579 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:20:57,514 INFO L231 Difference]: Finished difference. Result has 270 places, 269 transitions, 550 flow [2022-11-21 16:20:57,515 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=270, PETRI_TRANSITIONS=269} [2022-11-21 16:20:57,516 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -20 predicate places. [2022-11-21 16:20:57,516 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 269 transitions, 550 flow [2022-11-21 16:20:57,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,517 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:20:57,517 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:57,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:20:57,518 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:20:57,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:57,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1511097150, now seen corresponding path program 1 times [2022-11-21 16:20:57,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:57,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274130305] [2022-11-21 16:20:57,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:57,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:57,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:57,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274130305] [2022-11-21 16:20:57,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274130305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:57,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:57,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:20:57,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220300328] [2022-11-21 16:20:57,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:57,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:20:57,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:57,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:20:57,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:57,574 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 319 [2022-11-21 16:20:57,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 269 transitions, 550 flow. Second operand has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:20:57,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 319 [2022-11-21 16:20:57,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:20:57,683 INFO L130 PetriNetUnfolder]: 28/376 cut-off events. [2022-11-21 16:20:57,683 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-21 16:20:57,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 376 events. 28/376 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1191 event pairs, 11 based on Foata normal form. 1/344 useless extension candidates. Maximal degree in co-relation 410. Up to 38 conditions per place. [2022-11-21 16:20:57,687 INFO L137 encePairwiseOnDemand]: 307/319 looper letters, 18 selfloop transitions, 4 changer transitions 5/263 dead transitions. [2022-11-21 16:20:57,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 263 transitions, 587 flow [2022-11-21 16:20:57,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:20:57,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:20:57,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 859 transitions. [2022-11-21 16:20:57,691 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8975966562173459 [2022-11-21 16:20:57,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 859 transitions. [2022-11-21 16:20:57,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 859 transitions. [2022-11-21 16:20:57,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:20:57,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 859 transitions. [2022-11-21 16:20:57,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,698 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,698 INFO L175 Difference]: Start difference. First operand has 270 places, 269 transitions, 550 flow. Second operand 3 states and 859 transitions. [2022-11-21 16:20:57,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 263 transitions, 587 flow [2022-11-21 16:20:57,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 263 transitions, 581 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:20:57,705 INFO L231 Difference]: Finished difference. Result has 263 places, 257 transitions, 527 flow [2022-11-21 16:20:57,706 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=527, PETRI_PLACES=263, PETRI_TRANSITIONS=257} [2022-11-21 16:20:57,707 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -27 predicate places. [2022-11-21 16:20:57,707 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 257 transitions, 527 flow [2022-11-21 16:20:57,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:57,708 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:20:57,709 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:57,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:20:57,709 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:20:57,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:57,710 INFO L85 PathProgramCache]: Analyzing trace with hash -640111071, now seen corresponding path program 1 times [2022-11-21 16:20:57,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:57,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871078102] [2022-11-21 16:20:57,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:57,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:58,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:58,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:58,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871078102] [2022-11-21 16:20:58,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871078102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:58,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:58,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:20:58,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288843810] [2022-11-21 16:20:58,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:58,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:20:58,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:58,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:20:58,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:20:58,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 319 [2022-11-21 16:20:58,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 257 transitions, 527 flow. Second operand has 6 states, 6 states have (on average 262.8333333333333) internal successors, (1577), 6 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:58,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:20:58,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 319 [2022-11-21 16:20:58,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:20:59,511 INFO L130 PetriNetUnfolder]: 1348/4117 cut-off events. [2022-11-21 16:20:59,511 INFO L131 PetriNetUnfolder]: For 7/52 co-relation queries the response was YES. [2022-11-21 16:20:59,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6249 conditions, 4117 events. 1348/4117 cut-off events. For 7/52 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 30976 event pairs, 312 based on Foata normal form. 10/3585 useless extension candidates. Maximal degree in co-relation 6210. Up to 741 conditions per place. [2022-11-21 16:20:59,544 INFO L137 encePairwiseOnDemand]: 314/319 looper letters, 109 selfloop transitions, 4 changer transitions 0/328 dead transitions. [2022-11-21 16:20:59,544 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 328 transitions, 895 flow [2022-11-21 16:20:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:20:59,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:20:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1680 transitions. [2022-11-21 16:20:59,549 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.877742946708464 [2022-11-21 16:20:59,549 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1680 transitions. [2022-11-21 16:20:59,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1680 transitions. [2022-11-21 16:20:59,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:20:59,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1680 transitions. [2022-11-21 16:20:59,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 280.0) internal successors, (1680), 6 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) [2022-11-21 16:20:59,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:59,560 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:59,560 INFO L175 Difference]: Start difference. First operand has 263 places, 257 transitions, 527 flow. Second operand 6 states and 1680 transitions. [2022-11-21 16:20:59,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 328 transitions, 895 flow [2022-11-21 16:20:59,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 328 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:20:59,568 INFO L231 Difference]: Finished difference. Result has 260 places, 256 transitions, 525 flow [2022-11-21 16:20:59,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=525, PETRI_PLACES=260, PETRI_TRANSITIONS=256} [2022-11-21 16:20:59,570 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -30 predicate places. [2022-11-21 16:20:59,570 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 256 transitions, 525 flow [2022-11-21 16:20:59,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 262.8333333333333) internal successors, (1577), 6 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:59,571 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:20:59,571 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:59,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:20:59,572 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:20:59,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:59,572 INFO L85 PathProgramCache]: Analyzing trace with hash 767538415, now seen corresponding path program 1 times [2022-11-21 16:20:59,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:59,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783206941] [2022-11-21 16:20:59,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:59,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:59,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:59,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:59,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783206941] [2022-11-21 16:20:59,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783206941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:59,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:59,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:20:59,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096114214] [2022-11-21 16:20:59,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:59,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:20:59,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:59,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:20:59,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:20:59,629 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 319 [2022-11-21 16:20:59,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 256 transitions, 525 flow. Second operand has 3 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:59,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:20:59,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 319 [2022-11-21 16:20:59,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:20:59,771 INFO L130 PetriNetUnfolder]: 43/679 cut-off events. [2022-11-21 16:20:59,771 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-21 16:20:59,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 679 events. 43/679 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2671 event pairs, 4 based on Foata normal form. 0/614 useless extension candidates. Maximal degree in co-relation 710. Up to 50 conditions per place. [2022-11-21 16:20:59,777 INFO L137 encePairwiseOnDemand]: 314/319 looper letters, 13 selfloop transitions, 2 changer transitions 0/257 dead transitions. [2022-11-21 16:20:59,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 257 transitions, 559 flow [2022-11-21 16:20:59,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:20:59,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:20:59,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 891 transitions. [2022-11-21 16:20:59,781 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9310344827586207 [2022-11-21 16:20:59,781 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 891 transitions. [2022-11-21 16:20:59,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 891 transitions. [2022-11-21 16:20:59,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:20:59,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 891 transitions. [2022-11-21 16:20:59,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:59,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:59,788 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:59,788 INFO L175 Difference]: Start difference. First operand has 260 places, 256 transitions, 525 flow. Second operand 3 states and 891 transitions. [2022-11-21 16:20:59,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 257 transitions, 559 flow [2022-11-21 16:20:59,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 257 transitions, 552 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:20:59,795 INFO L231 Difference]: Finished difference. Result has 256 places, 255 transitions, 526 flow [2022-11-21 16:20:59,796 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=256, PETRI_TRANSITIONS=255} [2022-11-21 16:20:59,796 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -34 predicate places. [2022-11-21 16:20:59,797 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 255 transitions, 526 flow [2022-11-21 16:20:59,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:59,798 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:20:59,798 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:20:59,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:20:59,799 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:20:59,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:59,799 INFO L85 PathProgramCache]: Analyzing trace with hash 309449621, now seen corresponding path program 1 times [2022-11-21 16:20:59,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:59,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213845152] [2022-11-21 16:20:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:59,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:20:59,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:20:59,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:20:59,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213845152] [2022-11-21 16:20:59,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213845152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:20:59,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:20:59,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:20:59,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346559681] [2022-11-21 16:20:59,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:20:59,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:20:59,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:20:59,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:20:59,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:20:59,935 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 319 [2022-11-21 16:20:59,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 255 transitions, 526 flow. Second operand has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:59,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:20:59,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 319 [2022-11-21 16:20:59,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:21:00,239 INFO L130 PetriNetUnfolder]: 57/1028 cut-off events. [2022-11-21 16:21:00,240 INFO L131 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-11-21 16:21:00,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1172 conditions, 1028 events. 57/1028 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4859 event pairs, 11 based on Foata normal form. 1/936 useless extension candidates. Maximal degree in co-relation 1134. Up to 42 conditions per place. [2022-11-21 16:21:00,247 INFO L137 encePairwiseOnDemand]: 313/319 looper letters, 29 selfloop transitions, 6 changer transitions 0/272 dead transitions. [2022-11-21 16:21:00,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 272 transitions, 634 flow [2022-11-21 16:21:00,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:21:00,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:21:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1471 transitions. [2022-11-21 16:21:00,252 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9222570532915361 [2022-11-21 16:21:00,252 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1471 transitions. [2022-11-21 16:21:00,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1471 transitions. [2022-11-21 16:21:00,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:21:00,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1471 transitions. [2022-11-21 16:21:00,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 294.2) internal successors, (1471), 5 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:00,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:00,264 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:00,264 INFO L175 Difference]: Start difference. First operand has 256 places, 255 transitions, 526 flow. Second operand 5 states and 1471 transitions. [2022-11-21 16:21:00,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 272 transitions, 634 flow [2022-11-21 16:21:00,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 272 transitions, 634 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:21:00,271 INFO L231 Difference]: Finished difference. Result has 263 places, 259 transitions, 564 flow [2022-11-21 16:21:00,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=564, PETRI_PLACES=263, PETRI_TRANSITIONS=259} [2022-11-21 16:21:00,272 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -27 predicate places. [2022-11-21 16:21:00,272 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 259 transitions, 564 flow [2022-11-21 16:21:00,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:00,274 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:21:00,274 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:00,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:21:00,275 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:21:00,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:00,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1010193150, now seen corresponding path program 1 times [2022-11-21 16:21:00,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:00,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570964363] [2022-11-21 16:21:00,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:00,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:00,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:00,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570964363] [2022-11-21 16:21:00,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570964363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:00,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:00,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:21:00,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685959582] [2022-11-21 16:21:00,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:00,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:21:00,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:00,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:21:00,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:21:00,774 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 319 [2022-11-21 16:21:00,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 259 transitions, 564 flow. Second operand has 6 states, 6 states have (on average 263.8333333333333) internal successors, (1583), 6 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:00,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:21:00,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 319 [2022-11-21 16:21:00,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:21:03,530 INFO L130 PetriNetUnfolder]: 2314/10952 cut-off events. [2022-11-21 16:21:03,530 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-11-21 16:21:03,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14877 conditions, 10952 events. 2314/10952 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 109693 event pairs, 1848 based on Foata normal form. 0/9767 useless extension candidates. Maximal degree in co-relation 14833. Up to 3099 conditions per place. [2022-11-21 16:21:03,610 INFO L137 encePairwiseOnDemand]: 314/319 looper letters, 84 selfloop transitions, 4 changer transitions 0/306 dead transitions. [2022-11-21 16:21:03,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 306 transitions, 834 flow [2022-11-21 16:21:03,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:21:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:21:03,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1655 transitions. [2022-11-21 16:21:03,616 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8646812957157785 [2022-11-21 16:21:03,616 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1655 transitions. [2022-11-21 16:21:03,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1655 transitions. [2022-11-21 16:21:03,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:21:03,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1655 transitions. [2022-11-21 16:21:03,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 275.8333333333333) internal successors, (1655), 6 states have internal predecessors, (1655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:03,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:03,626 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:03,626 INFO L175 Difference]: Start difference. First operand has 263 places, 259 transitions, 564 flow. Second operand 6 states and 1655 transitions. [2022-11-21 16:21:03,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 306 transitions, 834 flow [2022-11-21 16:21:03,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 306 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:21:03,636 INFO L231 Difference]: Finished difference. Result has 267 places, 258 transitions, 570 flow [2022-11-21 16:21:03,637 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=267, PETRI_TRANSITIONS=258} [2022-11-21 16:21:03,638 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -23 predicate places. [2022-11-21 16:21:03,638 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 258 transitions, 570 flow [2022-11-21 16:21:03,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.8333333333333) internal successors, (1583), 6 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:03,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:21:03,640 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:03,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:21:03,640 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:21:03,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:03,641 INFO L85 PathProgramCache]: Analyzing trace with hash 885750741, now seen corresponding path program 1 times [2022-11-21 16:21:03,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:03,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296408987] [2022-11-21 16:21:03,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:03,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:04,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:04,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296408987] [2022-11-21 16:21:04,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296408987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:04,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:04,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:21:04,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44691195] [2022-11-21 16:21:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:04,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:21:04,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:04,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:21:04,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:21:04,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 319 [2022-11-21 16:21:04,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 258 transitions, 570 flow. Second operand has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:04,204 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:21:04,204 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 319 [2022-11-21 16:21:04,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:21:06,758 INFO L130 PetriNetUnfolder]: 3486/10634 cut-off events. [2022-11-21 16:21:06,758 INFO L131 PetriNetUnfolder]: For 1138/1138 co-relation queries the response was YES. [2022-11-21 16:21:06,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17266 conditions, 10634 events. 3486/10634 cut-off events. For 1138/1138 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 95310 event pairs, 1417 based on Foata normal form. 0/9613 useless extension candidates. Maximal degree in co-relation 17221. Up to 2642 conditions per place. [2022-11-21 16:21:06,831 INFO L137 encePairwiseOnDemand]: 313/319 looper letters, 121 selfloop transitions, 6 changer transitions 0/337 dead transitions. [2022-11-21 16:21:06,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 337 transitions, 990 flow [2022-11-21 16:21:06,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:21:06,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:21:06,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1667 transitions. [2022-11-21 16:21:06,836 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8709508881922675 [2022-11-21 16:21:06,836 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1667 transitions. [2022-11-21 16:21:06,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1667 transitions. [2022-11-21 16:21:06,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:21:06,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1667 transitions. [2022-11-21 16:21:06,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 277.8333333333333) internal successors, (1667), 6 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:06,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:06,846 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:06,846 INFO L175 Difference]: Start difference. First operand has 267 places, 258 transitions, 570 flow. Second operand 6 states and 1667 transitions. [2022-11-21 16:21:06,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 337 transitions, 990 flow [2022-11-21 16:21:06,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 337 transitions, 983 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:21:06,854 INFO L231 Difference]: Finished difference. Result has 267 places, 257 transitions, 573 flow [2022-11-21 16:21:06,855 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=573, PETRI_PLACES=267, PETRI_TRANSITIONS=257} [2022-11-21 16:21:06,855 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -23 predicate places. [2022-11-21 16:21:06,856 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 257 transitions, 573 flow [2022-11-21 16:21:06,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:06,857 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:21:06,857 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:06,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:21:06,857 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:21:06,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:06,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1205791438, now seen corresponding path program 1 times [2022-11-21 16:21:06,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:06,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273428404] [2022-11-21 16:21:06,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:06,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:06,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:06,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273428404] [2022-11-21 16:21:06,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273428404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:06,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:06,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:21:06,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957646395] [2022-11-21 16:21:06,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:06,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:21:06,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:06,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:21:06,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:21:06,977 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 319 [2022-11-21 16:21:06,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 257 transitions, 573 flow. Second operand has 4 states, 4 states have (on average 280.25) internal successors, (1121), 4 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:06,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:21:06,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 319 [2022-11-21 16:21:06,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:21:07,215 INFO L130 PetriNetUnfolder]: 90/814 cut-off events. [2022-11-21 16:21:07,216 INFO L131 PetriNetUnfolder]: For 78/79 co-relation queries the response was YES. [2022-11-21 16:21:07,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1120 conditions, 814 events. 90/814 cut-off events. For 78/79 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4789 event pairs, 22 based on Foata normal form. 0/749 useless extension candidates. Maximal degree in co-relation 1076. Up to 163 conditions per place. [2022-11-21 16:21:07,222 INFO L137 encePairwiseOnDemand]: 313/319 looper letters, 38 selfloop transitions, 6 changer transitions 0/273 dead transitions. [2022-11-21 16:21:07,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 273 transitions, 696 flow [2022-11-21 16:21:07,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:21:07,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:21:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1430 transitions. [2022-11-21 16:21:07,228 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.896551724137931 [2022-11-21 16:21:07,228 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1430 transitions. [2022-11-21 16:21:07,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1430 transitions. [2022-11-21 16:21:07,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:21:07,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1430 transitions. [2022-11-21 16:21:07,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 286.0) internal successors, (1430), 5 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:07,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:07,238 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 319.0) internal successors, (1914), 6 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:07,238 INFO L175 Difference]: Start difference. First operand has 267 places, 257 transitions, 573 flow. Second operand 5 states and 1430 transitions. [2022-11-21 16:21:07,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 273 transitions, 696 flow [2022-11-21 16:21:07,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 273 transitions, 684 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:21:07,245 INFO L231 Difference]: Finished difference. Result has 269 places, 261 transitions, 599 flow [2022-11-21 16:21:07,246 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=599, PETRI_PLACES=269, PETRI_TRANSITIONS=261} [2022-11-21 16:21:07,247 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -21 predicate places. [2022-11-21 16:21:07,247 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 261 transitions, 599 flow [2022-11-21 16:21:07,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 280.25) internal successors, (1121), 4 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:07,248 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:21:07,248 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:07,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:21:07,249 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:21:07,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:07,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1447108392, now seen corresponding path program 1 times [2022-11-21 16:21:07,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:07,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272904338] [2022-11-21 16:21:07,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:07,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:07,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:07,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:07,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272904338] [2022-11-21 16:21:07,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272904338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:07,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:07,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:21:07,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960694703] [2022-11-21 16:21:07,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:07,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:21:07,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:07,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:21:07,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:21:07,405 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 319 [2022-11-21 16:21:07,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 261 transitions, 599 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:07,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:21:07,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 319 [2022-11-21 16:21:07,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:21:07,582 INFO L130 PetriNetUnfolder]: 34/610 cut-off events. [2022-11-21 16:21:07,582 INFO L131 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2022-11-21 16:21:07,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 610 events. 34/610 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1783 event pairs, 16 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 723. Up to 47 conditions per place. [2022-11-21 16:21:07,589 INFO L137 encePairwiseOnDemand]: 316/319 looper letters, 12 selfloop transitions, 2 changer transitions 0/261 dead transitions. [2022-11-21 16:21:07,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 261 transitions, 628 flow [2022-11-21 16:21:07,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:21:07,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:21:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2022-11-21 16:21:07,593 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9122257053291536 [2022-11-21 16:21:07,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 873 transitions. [2022-11-21 16:21:07,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 873 transitions. [2022-11-21 16:21:07,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:21:07,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 873 transitions. [2022-11-21 16:21:07,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:07,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:07,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:07,602 INFO L175 Difference]: Start difference. First operand has 269 places, 261 transitions, 599 flow. Second operand 3 states and 873 transitions. [2022-11-21 16:21:07,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 261 transitions, 628 flow [2022-11-21 16:21:07,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 261 transitions, 628 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:21:07,611 INFO L231 Difference]: Finished difference. Result has 270 places, 260 transitions, 601 flow [2022-11-21 16:21:07,613 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=601, PETRI_PLACES=270, PETRI_TRANSITIONS=260} [2022-11-21 16:21:07,615 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -20 predicate places. [2022-11-21 16:21:07,615 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 260 transitions, 601 flow [2022-11-21 16:21:07,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:07,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:21:07,617 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:07,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:21:07,617 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:21:07,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:07,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1099430130, now seen corresponding path program 1 times [2022-11-21 16:21:07,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:07,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361326377] [2022-11-21 16:21:07,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:07,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:08,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:08,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361326377] [2022-11-21 16:21:08,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361326377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:08,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:08,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:21:08,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501038849] [2022-11-21 16:21:08,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:08,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:21:08,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:08,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:21:08,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:21:08,254 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 319 [2022-11-21 16:21:08,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 260 transitions, 601 flow. Second operand has 6 states, 6 states have (on average 256.1666666666667) internal successors, (1537), 6 states have internal predecessors, (1537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:08,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:21:08,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 319 [2022-11-21 16:21:08,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:21:11,273 INFO L130 PetriNetUnfolder]: 4128/13823 cut-off events. [2022-11-21 16:21:11,274 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2022-11-21 16:21:11,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22254 conditions, 13823 events. 4128/13823 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 130693 event pairs, 1472 based on Foata normal form. 0/13029 useless extension candidates. Maximal degree in co-relation 22204. Up to 2712 conditions per place. [2022-11-21 16:21:11,377 INFO L137 encePairwiseOnDemand]: 307/319 looper letters, 105 selfloop transitions, 11 changer transitions 0/326 dead transitions. [2022-11-21 16:21:11,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 326 transitions, 977 flow [2022-11-21 16:21:11,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:21:11,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:21:11,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1639 transitions. [2022-11-21 16:21:11,384 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8563218390804598 [2022-11-21 16:21:11,384 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1639 transitions. [2022-11-21 16:21:11,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1639 transitions. [2022-11-21 16:21:11,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:21:11,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1639 transitions. [2022-11-21 16:21:11,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 273.1666666666667) internal successors, (1639), 6 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:11,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:11,397 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 319.0) internal successors, (2233), 7 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:11,398 INFO L175 Difference]: Start difference. First operand has 270 places, 260 transitions, 601 flow. Second operand 6 states and 1639 transitions. [2022-11-21 16:21:11,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 326 transitions, 977 flow [2022-11-21 16:21:11,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 326 transitions, 973 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:21:11,410 INFO L231 Difference]: Finished difference. Result has 271 places, 258 transitions, 615 flow [2022-11-21 16:21:11,411 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=615, PETRI_PLACES=271, PETRI_TRANSITIONS=258} [2022-11-21 16:21:11,412 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -19 predicate places. [2022-11-21 16:21:11,413 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 258 transitions, 615 flow [2022-11-21 16:21:11,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 256.1666666666667) internal successors, (1537), 6 states have internal predecessors, (1537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:11,414 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:21:11,415 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:11,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:21:11,415 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:21:11,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:11,416 INFO L85 PathProgramCache]: Analyzing trace with hash 661292305, now seen corresponding path program 1 times [2022-11-21 16:21:11,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:11,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088394743] [2022-11-21 16:21:11,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:11,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:11,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:11,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088394743] [2022-11-21 16:21:11,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088394743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:11,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:11,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:21:11,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144150295] [2022-11-21 16:21:11,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:11,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:21:11,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:11,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:21:11,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:21:11,594 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 319 [2022-11-21 16:21:11,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 258 transitions, 615 flow. Second operand has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:11,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:21:11,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 319 [2022-11-21 16:21:11,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:21:11,786 INFO L130 PetriNetUnfolder]: 72/779 cut-off events. [2022-11-21 16:21:11,786 INFO L131 PetriNetUnfolder]: For 89/90 co-relation queries the response was YES. [2022-11-21 16:21:11,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 779 events. 72/779 cut-off events. For 89/90 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4193 event pairs, 48 based on Foata normal form. 0/738 useless extension candidates. Maximal degree in co-relation 1085. Up to 158 conditions per place. [2022-11-21 16:21:11,793 INFO L137 encePairwiseOnDemand]: 316/319 looper letters, 21 selfloop transitions, 2 changer transitions 0/258 dead transitions. [2022-11-21 16:21:11,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 258 transitions, 662 flow [2022-11-21 16:21:11,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:21:11,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:21:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 846 transitions. [2022-11-21 16:21:11,796 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8840125391849529 [2022-11-21 16:21:11,797 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 846 transitions. [2022-11-21 16:21:11,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 846 transitions. [2022-11-21 16:21:11,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:21:11,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 846 transitions. [2022-11-21 16:21:11,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:11,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:11,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:11,803 INFO L175 Difference]: Start difference. First operand has 271 places, 258 transitions, 615 flow. Second operand 3 states and 846 transitions. [2022-11-21 16:21:11,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 258 transitions, 662 flow [2022-11-21 16:21:11,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 258 transitions, 640 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:21:11,810 INFO L231 Difference]: Finished difference. Result has 267 places, 257 transitions, 595 flow [2022-11-21 16:21:11,811 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=595, PETRI_PLACES=267, PETRI_TRANSITIONS=257} [2022-11-21 16:21:11,811 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -23 predicate places. [2022-11-21 16:21:11,812 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 257 transitions, 595 flow [2022-11-21 16:21:11,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:11,812 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:21:11,813 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:11,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:21:11,813 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-21 16:21:11,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:21:11,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1991640856, now seen corresponding path program 1 times [2022-11-21 16:21:11,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:21:11,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329834139] [2022-11-21 16:21:11,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:21:11,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:21:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:21:11,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:21:11,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:21:11,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329834139] [2022-11-21 16:21:11,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329834139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:21:11,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:21:11,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:21:11,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398318796] [2022-11-21 16:21:11,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:21:11,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:21:11,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:21:11,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:21:11,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:21:11,884 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 319 [2022-11-21 16:21:11,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 257 transitions, 595 flow. Second operand has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:11,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:21:11,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 319 [2022-11-21 16:21:11,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:21:12,051 INFO L130 PetriNetUnfolder]: 70/772 cut-off events. [2022-11-21 16:21:12,051 INFO L131 PetriNetUnfolder]: For 77/78 co-relation queries the response was YES. [2022-11-21 16:21:12,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1054 conditions, 772 events. 70/772 cut-off events. For 77/78 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4059 event pairs, 46 based on Foata normal form. 0/736 useless extension candidates. Maximal degree in co-relation 1006. Up to 151 conditions per place. [2022-11-21 16:21:12,055 INFO L137 encePairwiseOnDemand]: 316/319 looper letters, 0 selfloop transitions, 0 changer transitions 257/257 dead transitions. [2022-11-21 16:21:12,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 257 transitions, 640 flow [2022-11-21 16:21:12,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:21:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:21:12,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 845 transitions. [2022-11-21 16:21:12,059 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8829676071055381 [2022-11-21 16:21:12,059 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 845 transitions. [2022-11-21 16:21:12,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 845 transitions. [2022-11-21 16:21:12,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:21:12,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 845 transitions. [2022-11-21 16:21:12,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 281.6666666666667) internal successors, (845), 3 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:12,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:12,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:12,065 INFO L175 Difference]: Start difference. First operand has 267 places, 257 transitions, 595 flow. Second operand 3 states and 845 transitions. [2022-11-21 16:21:12,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 257 transitions, 640 flow [2022-11-21 16:21:12,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 257 transitions, 636 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:21:12,070 INFO L231 Difference]: Finished difference. Result has 266 places, 0 transitions, 0 flow [2022-11-21 16:21:12,071 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=319, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=266, PETRI_TRANSITIONS=0} [2022-11-21 16:21:12,071 INFO L288 CegarLoopForPetriNet]: 290 programPoint places, -24 predicate places. [2022-11-21 16:21:12,071 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 0 transitions, 0 flow [2022-11-21 16:21:12,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:21:12,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (58 of 59 remaining) [2022-11-21 16:21:12,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (57 of 59 remaining) [2022-11-21 16:21:12,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (56 of 59 remaining) [2022-11-21 16:21:12,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (55 of 59 remaining) [2022-11-21 16:21:12,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (54 of 59 remaining) [2022-11-21 16:21:12,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (53 of 59 remaining) [2022-11-21 16:21:12,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (52 of 59 remaining) [2022-11-21 16:21:12,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (51 of 59 remaining) [2022-11-21 16:21:12,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (50 of 59 remaining) [2022-11-21 16:21:12,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (49 of 59 remaining) [2022-11-21 16:21:12,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (48 of 59 remaining) [2022-11-21 16:21:12,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (47 of 59 remaining) [2022-11-21 16:21:12,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (46 of 59 remaining) [2022-11-21 16:21:12,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (45 of 59 remaining) [2022-11-21 16:21:12,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (44 of 59 remaining) [2022-11-21 16:21:12,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (43 of 59 remaining) [2022-11-21 16:21:12,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (42 of 59 remaining) [2022-11-21 16:21:12,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (41 of 59 remaining) [2022-11-21 16:21:12,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (40 of 59 remaining) [2022-11-21 16:21:12,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (39 of 59 remaining) [2022-11-21 16:21:12,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (38 of 59 remaining) [2022-11-21 16:21:12,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (37 of 59 remaining) [2022-11-21 16:21:12,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (36 of 59 remaining) [2022-11-21 16:21:12,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 59 remaining) [2022-11-21 16:21:12,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 59 remaining) [2022-11-21 16:21:12,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 59 remaining) [2022-11-21 16:21:12,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 59 remaining) [2022-11-21 16:21:12,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 59 remaining) [2022-11-21 16:21:12,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 59 remaining) [2022-11-21 16:21:12,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 59 remaining) [2022-11-21 16:21:12,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 59 remaining) [2022-11-21 16:21:12,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 59 remaining) [2022-11-21 16:21:12,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 59 remaining) [2022-11-21 16:21:12,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 59 remaining) [2022-11-21 16:21:12,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 59 remaining) [2022-11-21 16:21:12,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 59 remaining) [2022-11-21 16:21:12,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (22 of 59 remaining) [2022-11-21 16:21:12,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (21 of 59 remaining) [2022-11-21 16:21:12,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (20 of 59 remaining) [2022-11-21 16:21:12,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (19 of 59 remaining) [2022-11-21 16:21:12,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (18 of 59 remaining) [2022-11-21 16:21:12,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (17 of 59 remaining) [2022-11-21 16:21:12,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (16 of 59 remaining) [2022-11-21 16:21:12,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (15 of 59 remaining) [2022-11-21 16:21:12,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 59 remaining) [2022-11-21 16:21:12,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 59 remaining) [2022-11-21 16:21:12,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 59 remaining) [2022-11-21 16:21:12,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 59 remaining) [2022-11-21 16:21:12,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 59 remaining) [2022-11-21 16:21:12,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (9 of 59 remaining) [2022-11-21 16:21:12,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (8 of 59 remaining) [2022-11-21 16:21:12,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (7 of 59 remaining) [2022-11-21 16:21:12,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 59 remaining) [2022-11-21 16:21:12,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (5 of 59 remaining) [2022-11-21 16:21:12,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (4 of 59 remaining) [2022-11-21 16:21:12,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (3 of 59 remaining) [2022-11-21 16:21:12,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (2 of 59 remaining) [2022-11-21 16:21:12,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (1 of 59 remaining) [2022-11-21 16:21:12,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (0 of 59 remaining) [2022-11-21 16:21:12,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:21:12,089 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:21:12,097 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:21:12,097 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:21:12,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:21:12 BasicIcfg [2022-11-21 16:21:12,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:21:12,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:21:12,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:21:12,105 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:21:12,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:51" (3/4) ... [2022-11-21 16:21:12,109 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:21:12,117 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-21 16:21:12,117 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-21 16:21:12,125 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-21 16:21:12,125 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:21:12,126 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:21:12,126 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:21:12,203 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:21:12,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:21:12,205 INFO L158 Benchmark]: Toolchain (without parser) took 22169.25ms. Allocated memory was 130.0MB in the beginning and 4.7GB in the end (delta: 4.6GB). Free memory was 89.2MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 541.2MB. Max. memory is 16.1GB. [2022-11-21 16:21:12,205 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 130.0MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:21:12,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.00ms. Allocated memory is still 130.0MB. Free memory was 89.2MB in the beginning and 77.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:21:12,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.63ms. Allocated memory is still 130.0MB. Free memory was 77.0MB in the beginning and 74.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:21:12,206 INFO L158 Benchmark]: Boogie Preprocessor took 51.71ms. Allocated memory is still 130.0MB. Free memory was 74.6MB in the beginning and 72.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:21:12,207 INFO L158 Benchmark]: RCFGBuilder took 1084.87ms. Allocated memory is still 130.0MB. Free memory was 72.0MB in the beginning and 47.3MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 16:21:12,207 INFO L158 Benchmark]: TraceAbstraction took 20506.04ms. Allocated memory was 130.0MB in the beginning and 4.7GB in the end (delta: 4.6GB). Free memory was 46.6MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 497.2MB. Max. memory is 16.1GB. [2022-11-21 16:21:12,208 INFO L158 Benchmark]: Witness Printer took 98.91ms. Allocated memory is still 4.7GB. Free memory was 4.2GB in the beginning and 4.2GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:21:12,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 130.0MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.00ms. Allocated memory is still 130.0MB. Free memory was 89.2MB in the beginning and 77.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.63ms. Allocated memory is still 130.0MB. Free memory was 77.0MB in the beginning and 74.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.71ms. Allocated memory is still 130.0MB. Free memory was 74.6MB in the beginning and 72.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1084.87ms. Allocated memory is still 130.0MB. Free memory was 72.0MB in the beginning and 47.3MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 20506.04ms. Allocated memory was 130.0MB in the beginning and 4.7GB in the end (delta: 4.6GB). Free memory was 46.6MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 497.2MB. Max. memory is 16.1GB. * Witness Printer took 98.91ms. Allocated memory is still 4.7GB. Free memory was 4.2GB in the beginning and 4.2GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 450 locations, 59 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: 20.2s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 342 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 252 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1229 IncrementalHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 252 mSolverCounterUnsat, 320 mSDtfsCounter, 1229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=615occurred in iteration=16, InterpolantAutomatonStates: 73, 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, 3.8s InterpolantComputationTime, 1668 NumberOfCodeBlocks, 1668 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1650 ConstructedInterpolants, 0 QuantifiedInterpolants, 2517 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 34 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:21:12,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3c37f5-2031-4bba-ba5a-8bdef592dc9e/bin/uautomizer-vX5HgA9Q3a/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