./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8 --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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- 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-e04fb08 [2022-11-16 12:21:43,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:21:43,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:21:43,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:21:43,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:21:43,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:21:43,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:21:43,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:21:43,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:21:43,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:21:43,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:21:43,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:21:43,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:21:43,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:21:43,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:21:43,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:21:43,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:21:43,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:21:43,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:21:43,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:21:43,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:21:43,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:21:43,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:21:43,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:21:43,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:21:43,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:21:43,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:21:43,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:21:43,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:21:43,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:21:43,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:21:43,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:21:43,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:21:43,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:21:43,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:21:43,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:21:43,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:21:43,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:21:43,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:21:43,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:21:43,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:21:43,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:21:43,310 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:21:43,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:21:43,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:21:43,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:21:43,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:21:43,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:21:43,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:21:43,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:21:43,314 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:21:43,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:21:43,314 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:21:43,314 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:21:43,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:21:43,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:21:43,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:21:43,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:21:43,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:21:43,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:21:43,316 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:21:43,316 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:21:43,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:21:43,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:21:43,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:21:43,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:21:43,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:21:43,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:21:43,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:21:43,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:21:43,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:21:43,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:21:43,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:21:43,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:21:43,320 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:21:43,320 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:21:43,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:21:43,320 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_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2022-11-16 12:21:43,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:21:43,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:21:43,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:21:43,716 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:21:43,718 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:21:43,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-16 12:21:43,839 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/data/68356c79a/fa2f2cb35dfe40239148eb20541f7e86/FLAG2596deba5 [2022-11-16 12:21:44,532 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:21:44,532 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-16 12:21:44,565 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/data/68356c79a/fa2f2cb35dfe40239148eb20541f7e86/FLAG2596deba5 [2022-11-16 12:21:44,824 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/data/68356c79a/fa2f2cb35dfe40239148eb20541f7e86 [2022-11-16 12:21:44,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:21:44,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:21:44,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:21:44,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:21:44,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:21:44,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:44" (1/1) ... [2022-11-16 12:21:44,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d76d7d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:44, skipping insertion in model container [2022-11-16 12:21:44,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:44" (1/1) ... [2022-11-16 12:21:44,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:21:44,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:21:45,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:21:45,526 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:21:45,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:21:45,672 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:21:45,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45 WrapperNode [2022-11-16 12:21:45,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:21:45,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:21:45,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:21:45,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:21:45,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2022-11-16 12:21:45,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2022-11-16 12:21:45,775 INFO L138 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-11-16 12:21:45,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:21:45,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:21:45,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:21:45,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:21:45,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2022-11-16 12:21:45,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2022-11-16 12:21:45,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2022-11-16 12:21:45,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2022-11-16 12:21:45,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2022-11-16 12:21:45,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2022-11-16 12:21:45,833 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2022-11-16 12:21:45,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2022-11-16 12:21:45,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:21:45,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:21:45,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:21:45,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:21:45,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (1/1) ... [2022-11-16 12:21:45,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:21:45,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:21:45,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:21:45,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534afc0b-3b29-48f2-9ceb-59e8881cce2f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:21:45,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:21:45,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:21:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:21:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:21:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:21:45,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:21:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:21:45,966 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:21:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:21:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:21:45,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:21:45,970 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:21:46,225 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:21:46,228 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:21:46,585 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:21:46,600 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:21:46,610 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:21:46,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:46 BoogieIcfgContainer [2022-11-16 12:21:46,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:21:46,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:21:46,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:21:46,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:21:46,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:21:44" (1/3) ... [2022-11-16 12:21:46,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c6dc82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:46, skipping insertion in model container [2022-11-16 12:21:46,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:45" (2/3) ... [2022-11-16 12:21:46,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c6dc82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:46, skipping insertion in model container [2022-11-16 12:21:46,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:46" (3/3) ... [2022-11-16 12:21:46,629 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2022-11-16 12:21:46,642 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:21:46,656 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:21:46,656 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-16 12:21:46,656 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:21:46,790 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 12:21:46,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 106 transitions, 220 flow [2022-11-16 12:21:46,935 INFO L130 PetriNetUnfolder]: 0/105 cut-off events. [2022-11-16 12:21:46,936 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:21:46,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 0/105 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-16 12:21:46,940 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 106 transitions, 220 flow [2022-11-16 12:21:46,945 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 97 transitions, 197 flow [2022-11-16 12:21:46,959 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:21:46,966 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;@c1fbf9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:21:46,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 12:21:47,003 INFO L130 PetriNetUnfolder]: 0/59 cut-off events. [2022-11-16 12:21:47,008 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:21:47,008 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:47,009 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] [2022-11-16 12:21:47,010 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:21:47,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:47,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1787115312, now seen corresponding path program 1 times [2022-11-16 12:21:47,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:47,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352257522] [2022-11-16 12:21:47,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:47,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:48,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:48,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352257522] [2022-11-16 12:21:48,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352257522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:48,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:48,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:21:48,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126575974] [2022-11-16 12:21:48,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:48,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:21:48,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:48,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:21:48,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:21:48,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 106 [2022-11-16 12:21:48,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 197 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:48,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:48,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 106 [2022-11-16 12:21:48,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:49,084 INFO L130 PetriNetUnfolder]: 347/961 cut-off events. [2022-11-16 12:21:49,085 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:21:49,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1701 conditions, 961 events. 347/961 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5361 event pairs, 170 based on Foata normal form. 0/861 useless extension candidates. Maximal degree in co-relation 1662. Up to 526 conditions per place. [2022-11-16 12:21:49,104 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 91 selfloop transitions, 22 changer transitions 0/175 dead transitions. [2022-11-16 12:21:49,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 175 transitions, 579 flow [2022-11-16 12:21:49,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:21:49,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2022-11-16 12:21:49,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.839622641509434 [2022-11-16 12:21:49,140 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 534 transitions. [2022-11-16 12:21:49,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 534 transitions. [2022-11-16 12:21:49,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:49,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 534 transitions. [2022-11-16 12:21:49,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:49,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:49,167 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:49,169 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 197 flow. Second operand 6 states and 534 transitions. [2022-11-16 12:21:49,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 175 transitions, 579 flow [2022-11-16 12:21:49,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 175 transitions, 578 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:21:49,188 INFO L231 Difference]: Finished difference. Result has 110 places, 118 transitions, 346 flow [2022-11-16 12:21:49,190 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=110, PETRI_TRANSITIONS=118} [2022-11-16 12:21:49,197 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 9 predicate places. [2022-11-16 12:21:49,197 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 118 transitions, 346 flow [2022-11-16 12:21:49,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:49,199 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:49,200 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:49,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:21:49,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:21:49,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:49,204 INFO L85 PathProgramCache]: Analyzing trace with hash -721825185, now seen corresponding path program 1 times [2022-11-16 12:21:49,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:49,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037230808] [2022-11-16 12:21:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:49,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:49,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:49,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:49,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037230808] [2022-11-16 12:21:49,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037230808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:49,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:49,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:21:49,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909342191] [2022-11-16 12:21:49,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:49,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:21:49,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:49,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:21:49,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:21:49,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 106 [2022-11-16 12:21:49,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 118 transitions, 346 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:49,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:49,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 106 [2022-11-16 12:21:49,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:50,263 INFO L130 PetriNetUnfolder]: 332/958 cut-off events. [2022-11-16 12:21:50,263 INFO L131 PetriNetUnfolder]: For 394/400 co-relation queries the response was YES. [2022-11-16 12:21:50,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 958 events. 332/958 cut-off events. For 394/400 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5421 event pairs, 155 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 2052. Up to 591 conditions per place. [2022-11-16 12:21:50,277 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 80 selfloop transitions, 26 changer transitions 0/168 dead transitions. [2022-11-16 12:21:50,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 168 transitions, 748 flow [2022-11-16 12:21:50,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:50,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:21:50,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2022-11-16 12:21:50,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7955974842767296 [2022-11-16 12:21:50,281 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 506 transitions. [2022-11-16 12:21:50,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 506 transitions. [2022-11-16 12:21:50,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:50,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 506 transitions. [2022-11-16 12:21:50,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:50,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:50,285 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:50,286 INFO L175 Difference]: Start difference. First operand has 110 places, 118 transitions, 346 flow. Second operand 6 states and 506 transitions. [2022-11-16 12:21:50,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 168 transitions, 748 flow [2022-11-16 12:21:50,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 168 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:21:50,298 INFO L231 Difference]: Finished difference. Result has 120 places, 139 transitions, 530 flow [2022-11-16 12:21:50,299 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=530, PETRI_PLACES=120, PETRI_TRANSITIONS=139} [2022-11-16 12:21:50,300 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 19 predicate places. [2022-11-16 12:21:50,300 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 139 transitions, 530 flow [2022-11-16 12:21:50,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:50,301 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:50,301 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] [2022-11-16 12:21:50,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:21:50,302 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:21:50,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:50,305 INFO L85 PathProgramCache]: Analyzing trace with hash -802532585, now seen corresponding path program 1 times [2022-11-16 12:21:50,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:50,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839726274] [2022-11-16 12:21:50,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:50,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:50,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:50,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839726274] [2022-11-16 12:21:50,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839726274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:50,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:50,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:21:50,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322537958] [2022-11-16 12:21:50,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:50,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:21:50,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:50,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:21:50,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:21:50,695 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 106 [2022-11-16 12:21:50,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 139 transitions, 530 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:50,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:50,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 106 [2022-11-16 12:21:50,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:51,287 INFO L130 PetriNetUnfolder]: 502/1324 cut-off events. [2022-11-16 12:21:51,287 INFO L131 PetriNetUnfolder]: For 780/786 co-relation queries the response was YES. [2022-11-16 12:21:51,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3293 conditions, 1324 events. 502/1324 cut-off events. For 780/786 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7785 event pairs, 196 based on Foata normal form. 0/1229 useless extension candidates. Maximal degree in co-relation 3245. Up to 895 conditions per place. [2022-11-16 12:21:51,300 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 94 selfloop transitions, 69 changer transitions 4/227 dead transitions. [2022-11-16 12:21:51,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 227 transitions, 1200 flow [2022-11-16 12:21:51,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:51,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:21:51,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 523 transitions. [2022-11-16 12:21:51,303 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8223270440251572 [2022-11-16 12:21:51,303 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 523 transitions. [2022-11-16 12:21:51,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 523 transitions. [2022-11-16 12:21:51,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:51,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 523 transitions. [2022-11-16 12:21:51,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:51,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:51,308 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:51,309 INFO L175 Difference]: Start difference. First operand has 120 places, 139 transitions, 530 flow. Second operand 6 states and 523 transitions. [2022-11-16 12:21:51,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 227 transitions, 1200 flow [2022-11-16 12:21:51,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 227 transitions, 1200 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:21:51,329 INFO L231 Difference]: Finished difference. Result has 130 places, 202 transitions, 1116 flow [2022-11-16 12:21:51,329 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1116, PETRI_PLACES=130, PETRI_TRANSITIONS=202} [2022-11-16 12:21:51,332 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 29 predicate places. [2022-11-16 12:21:51,333 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 202 transitions, 1116 flow [2022-11-16 12:21:51,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:51,334 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:51,334 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] [2022-11-16 12:21:51,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:21:51,334 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:21:51,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:51,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1371415012, now seen corresponding path program 1 times [2022-11-16 12:21:51,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:51,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165022924] [2022-11-16 12:21:51,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:51,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:51,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:51,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:51,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165022924] [2022-11-16 12:21:51,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165022924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:51,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:51,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:21:51,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366732055] [2022-11-16 12:21:51,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:51,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:21:51,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:51,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:21:51,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:21:51,706 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 106 [2022-11-16 12:21:51,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 202 transitions, 1116 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:51,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:51,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 106 [2022-11-16 12:21:51,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:52,292 INFO L130 PetriNetUnfolder]: 545/1421 cut-off events. [2022-11-16 12:21:52,292 INFO L131 PetriNetUnfolder]: For 1828/1839 co-relation queries the response was YES. [2022-11-16 12:21:52,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4543 conditions, 1421 events. 545/1421 cut-off events. For 1828/1839 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 8599 event pairs, 155 based on Foata normal form. 0/1367 useless extension candidates. Maximal degree in co-relation 4490. Up to 995 conditions per place. [2022-11-16 12:21:52,306 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 145 selfloop transitions, 67 changer transitions 0/273 dead transitions. [2022-11-16 12:21:52,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 273 transitions, 1958 flow [2022-11-16 12:21:52,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:52,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:21:52,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2022-11-16 12:21:52,309 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7845911949685535 [2022-11-16 12:21:52,309 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2022-11-16 12:21:52,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2022-11-16 12:21:52,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:52,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2022-11-16 12:21:52,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:52,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:52,317 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:52,321 INFO L175 Difference]: Start difference. First operand has 130 places, 202 transitions, 1116 flow. Second operand 6 states and 499 transitions. [2022-11-16 12:21:52,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 273 transitions, 1958 flow [2022-11-16 12:21:52,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 273 transitions, 1894 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-16 12:21:52,349 INFO L231 Difference]: Finished difference. Result has 140 places, 255 transitions, 1704 flow [2022-11-16 12:21:52,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1704, PETRI_PLACES=140, PETRI_TRANSITIONS=255} [2022-11-16 12:21:52,351 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 39 predicate places. [2022-11-16 12:21:52,352 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 255 transitions, 1704 flow [2022-11-16 12:21:52,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:52,352 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:52,356 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] [2022-11-16 12:21:52,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:21:52,357 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:21:52,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:52,358 INFO L85 PathProgramCache]: Analyzing trace with hash -818792055, now seen corresponding path program 1 times [2022-11-16 12:21:52,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:52,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025163946] [2022-11-16 12:21:52,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:52,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:53,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:53,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025163946] [2022-11-16 12:21:53,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025163946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:53,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:53,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:21:53,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229480581] [2022-11-16 12:21:53,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:53,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:21:53,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:53,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:21:53,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:21:53,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:21:53,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 255 transitions, 1704 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:53,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:53,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:21:53,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:55,144 INFO L130 PetriNetUnfolder]: 1216/3141 cut-off events. [2022-11-16 12:21:55,145 INFO L131 PetriNetUnfolder]: For 6121/6127 co-relation queries the response was YES. [2022-11-16 12:21:55,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11141 conditions, 3141 events. 1216/3141 cut-off events. For 6121/6127 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 22357 event pairs, 152 based on Foata normal form. 11/3084 useless extension candidates. Maximal degree in co-relation 11079. Up to 1123 conditions per place. [2022-11-16 12:21:55,176 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 455 selfloop transitions, 70 changer transitions 2/581 dead transitions. [2022-11-16 12:21:55,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 581 transitions, 5158 flow [2022-11-16 12:21:55,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:21:55,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:21:55,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1105 transitions. [2022-11-16 12:21:55,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6949685534591195 [2022-11-16 12:21:55,181 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1105 transitions. [2022-11-16 12:21:55,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1105 transitions. [2022-11-16 12:21:55,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:55,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1105 transitions. [2022-11-16 12:21:55,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.66666666666667) internal successors, (1105), 15 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:55,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:55,192 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:55,192 INFO L175 Difference]: Start difference. First operand has 140 places, 255 transitions, 1704 flow. Second operand 15 states and 1105 transitions. [2022-11-16 12:21:55,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 581 transitions, 5158 flow [2022-11-16 12:21:55,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 581 transitions, 5010 flow, removed 74 selfloop flow, removed 0 redundant places. [2022-11-16 12:21:55,267 INFO L231 Difference]: Finished difference. Result has 162 places, 312 transitions, 2484 flow [2022-11-16 12:21:55,268 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1630, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2484, PETRI_PLACES=162, PETRI_TRANSITIONS=312} [2022-11-16 12:21:55,271 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 61 predicate places. [2022-11-16 12:21:55,271 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 312 transitions, 2484 flow [2022-11-16 12:21:55,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:55,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:55,272 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] [2022-11-16 12:21:55,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:21:55,273 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:21:55,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:55,274 INFO L85 PathProgramCache]: Analyzing trace with hash 785038075, now seen corresponding path program 2 times [2022-11-16 12:21:55,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:55,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111193840] [2022-11-16 12:21:55,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:55,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:56,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:56,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:56,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111193840] [2022-11-16 12:21:56,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111193840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:56,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:56,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:21:56,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396876108] [2022-11-16 12:21:56,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:56,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:21:56,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:56,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:21:56,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:21:56,291 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:21:56,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 312 transitions, 2484 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:56,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:56,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:21:56,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:58,192 INFO L130 PetriNetUnfolder]: 1266/3256 cut-off events. [2022-11-16 12:21:58,192 INFO L131 PetriNetUnfolder]: For 8605/8623 co-relation queries the response was YES. [2022-11-16 12:21:58,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12343 conditions, 3256 events. 1266/3256 cut-off events. For 8605/8623 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 23485 event pairs, 187 based on Foata normal form. 5/3190 useless extension candidates. Maximal degree in co-relation 12270. Up to 1998 conditions per place. [2022-11-16 12:21:58,238 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 282 selfloop transitions, 95 changer transitions 0/431 dead transitions. [2022-11-16 12:21:58,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 431 transitions, 4124 flow [2022-11-16 12:21:58,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:21:58,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:21:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 886 transitions. [2022-11-16 12:21:58,243 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6965408805031447 [2022-11-16 12:21:58,243 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 886 transitions. [2022-11-16 12:21:58,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 886 transitions. [2022-11-16 12:21:58,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:58,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 886 transitions. [2022-11-16 12:21:58,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 73.83333333333333) internal successors, (886), 12 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:58,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:58,252 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:58,252 INFO L175 Difference]: Start difference. First operand has 162 places, 312 transitions, 2484 flow. Second operand 12 states and 886 transitions. [2022-11-16 12:21:58,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 431 transitions, 4124 flow [2022-11-16 12:21:58,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 431 transitions, 4109 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-16 12:21:58,381 INFO L231 Difference]: Finished difference. Result has 175 places, 336 transitions, 3175 flow [2022-11-16 12:21:58,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2473, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3175, PETRI_PLACES=175, PETRI_TRANSITIONS=336} [2022-11-16 12:21:58,384 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 74 predicate places. [2022-11-16 12:21:58,385 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 336 transitions, 3175 flow [2022-11-16 12:21:58,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:58,386 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:58,386 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] [2022-11-16 12:21:58,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:21:58,387 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:21:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:58,388 INFO L85 PathProgramCache]: Analyzing trace with hash -321174779, now seen corresponding path program 1 times [2022-11-16 12:21:58,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:58,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62625404] [2022-11-16 12:21:58,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:58,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:59,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:21:59,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:59,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62625404] [2022-11-16 12:21:59,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62625404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:59,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:59,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:21:59,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734014840] [2022-11-16 12:21:59,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:59,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:21:59,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:59,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:21:59,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:21:59,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:21:59,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 336 transitions, 3175 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:59,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:59,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:21:59,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:22:02,158 INFO L130 PetriNetUnfolder]: 1954/5075 cut-off events. [2022-11-16 12:22:02,161 INFO L131 PetriNetUnfolder]: For 17556/17573 co-relation queries the response was YES. [2022-11-16 12:22:02,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19812 conditions, 5075 events. 1954/5075 cut-off events. For 17556/17573 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 40836 event pairs, 222 based on Foata normal form. 13/4983 useless extension candidates. Maximal degree in co-relation 19734. Up to 1264 conditions per place. [2022-11-16 12:22:02,249 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 695 selfloop transitions, 107 changer transitions 7/863 dead transitions. [2022-11-16 12:22:02,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 863 transitions, 9124 flow [2022-11-16 12:22:02,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:22:02,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 12:22:02,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1138 transitions. [2022-11-16 12:22:02,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7668463611859838 [2022-11-16 12:22:02,255 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1138 transitions. [2022-11-16 12:22:02,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1138 transitions. [2022-11-16 12:22:02,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:22:02,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1138 transitions. [2022-11-16 12:22:02,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 81.28571428571429) internal successors, (1138), 14 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:02,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:02,264 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:02,265 INFO L175 Difference]: Start difference. First operand has 175 places, 336 transitions, 3175 flow. Second operand 14 states and 1138 transitions. [2022-11-16 12:22:02,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 863 transitions, 9124 flow [2022-11-16 12:22:02,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 863 transitions, 8953 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-11-16 12:22:02,408 INFO L231 Difference]: Finished difference. Result has 191 places, 428 transitions, 4700 flow [2022-11-16 12:22:02,408 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=3113, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4700, PETRI_PLACES=191, PETRI_TRANSITIONS=428} [2022-11-16 12:22:02,409 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 90 predicate places. [2022-11-16 12:22:02,409 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 428 transitions, 4700 flow [2022-11-16 12:22:02,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:02,410 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:22:02,411 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] [2022-11-16 12:22:02,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:22:02,411 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:22:02,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:02,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1552984403, now seen corresponding path program 3 times [2022-11-16 12:22:02,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:02,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830653006] [2022-11-16 12:22:02,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:02,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:03,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:03,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830653006] [2022-11-16 12:22:03,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830653006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:03,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:03,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:22:03,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187578062] [2022-11-16 12:22:03,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:03,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:22:03,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:03,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:22:03,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:22:03,152 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:22:03,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 428 transitions, 4700 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:03,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:22:03,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:22:03,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:22:05,784 INFO L130 PetriNetUnfolder]: 2044/5251 cut-off events. [2022-11-16 12:22:05,784 INFO L131 PetriNetUnfolder]: For 23982/24012 co-relation queries the response was YES. [2022-11-16 12:22:05,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22125 conditions, 5251 events. 2044/5251 cut-off events. For 23982/24012 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 42563 event pairs, 321 based on Foata normal form. 13/5150 useless extension candidates. Maximal degree in co-relation 22037. Up to 3165 conditions per place. [2022-11-16 12:22:05,869 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 413 selfloop transitions, 146 changer transitions 0/613 dead transitions. [2022-11-16 12:22:05,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 613 transitions, 7639 flow [2022-11-16 12:22:05,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:22:05,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 12:22:05,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1023 transitions. [2022-11-16 12:22:05,875 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6893530997304582 [2022-11-16 12:22:05,875 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1023 transitions. [2022-11-16 12:22:05,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1023 transitions. [2022-11-16 12:22:05,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:22:05,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1023 transitions. [2022-11-16 12:22:05,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.07142857142857) internal successors, (1023), 14 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:05,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:05,885 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:05,885 INFO L175 Difference]: Start difference. First operand has 191 places, 428 transitions, 4700 flow. Second operand 14 states and 1023 transitions. [2022-11-16 12:22:05,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 613 transitions, 7639 flow [2022-11-16 12:22:06,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 613 transitions, 7609 flow, removed 9 selfloop flow, removed 3 redundant places. [2022-11-16 12:22:06,110 INFO L231 Difference]: Finished difference. Result has 208 places, 465 transitions, 5885 flow [2022-11-16 12:22:06,111 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4685, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5885, PETRI_PLACES=208, PETRI_TRANSITIONS=465} [2022-11-16 12:22:06,114 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 107 predicate places. [2022-11-16 12:22:06,114 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 465 transitions, 5885 flow [2022-11-16 12:22:06,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:06,115 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:22:06,115 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] [2022-11-16 12:22:06,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:22:06,116 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:22:06,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:06,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1044746357, now seen corresponding path program 2 times [2022-11-16 12:22:06,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:06,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649404821] [2022-11-16 12:22:06,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:06,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:06,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:06,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:06,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649404821] [2022-11-16 12:22:06,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649404821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:06,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:06,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:22:06,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682464789] [2022-11-16 12:22:06,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:06,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:22:06,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:06,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:22:06,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:22:06,834 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:22:06,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 465 transitions, 5885 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:06,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:22:06,835 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:22:06,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:22:09,693 INFO L130 PetriNetUnfolder]: 2164/5599 cut-off events. [2022-11-16 12:22:09,693 INFO L131 PetriNetUnfolder]: For 32518/32538 co-relation queries the response was YES. [2022-11-16 12:22:09,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24583 conditions, 5599 events. 2164/5599 cut-off events. For 32518/32538 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 45899 event pairs, 296 based on Foata normal form. 23/5511 useless extension candidates. Maximal degree in co-relation 24488. Up to 1436 conditions per place. [2022-11-16 12:22:09,771 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 757 selfloop transitions, 134 changer transitions 8/953 dead transitions. [2022-11-16 12:22:09,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 953 transitions, 11900 flow [2022-11-16 12:22:09,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:22:09,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:22:09,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1218 transitions. [2022-11-16 12:22:09,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7660377358490567 [2022-11-16 12:22:09,776 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1218 transitions. [2022-11-16 12:22:09,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1218 transitions. [2022-11-16 12:22:09,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:22:09,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1218 transitions. [2022-11-16 12:22:09,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.2) internal successors, (1218), 15 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:09,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:09,787 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:09,788 INFO L175 Difference]: Start difference. First operand has 208 places, 465 transitions, 5885 flow. Second operand 15 states and 1218 transitions. [2022-11-16 12:22:09,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 953 transitions, 11900 flow [2022-11-16 12:22:10,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 953 transitions, 11712 flow, removed 32 selfloop flow, removed 6 redundant places. [2022-11-16 12:22:10,046 INFO L231 Difference]: Finished difference. Result has 221 places, 496 transitions, 6721 flow [2022-11-16 12:22:10,047 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=5784, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6721, PETRI_PLACES=221, PETRI_TRANSITIONS=496} [2022-11-16 12:22:10,048 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 120 predicate places. [2022-11-16 12:22:10,048 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 496 transitions, 6721 flow [2022-11-16 12:22:10,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:10,049 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:22:10,049 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] [2022-11-16 12:22:10,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:22:10,050 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:22:10,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:10,051 INFO L85 PathProgramCache]: Analyzing trace with hash 634827701, now seen corresponding path program 4 times [2022-11-16 12:22:10,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:10,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400583506] [2022-11-16 12:22:10,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:10,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:10,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:10,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400583506] [2022-11-16 12:22:10,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400583506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:10,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:10,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:22:10,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209960458] [2022-11-16 12:22:10,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:10,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:22:10,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:10,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:22:10,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:22:10,859 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:22:10,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 496 transitions, 6721 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:10,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:22:10,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:22:10,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:22:13,820 INFO L130 PetriNetUnfolder]: 2313/5907 cut-off events. [2022-11-16 12:22:13,821 INFO L131 PetriNetUnfolder]: For 41560/41594 co-relation queries the response was YES. [2022-11-16 12:22:13,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27375 conditions, 5907 events. 2313/5907 cut-off events. For 41560/41594 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 49064 event pairs, 365 based on Foata normal form. 15/5799 useless extension candidates. Maximal degree in co-relation 27275. Up to 3397 conditions per place. [2022-11-16 12:22:13,900 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 469 selfloop transitions, 183 changer transitions 0/706 dead transitions. [2022-11-16 12:22:13,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 706 transitions, 10421 flow [2022-11-16 12:22:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:22:13,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 12:22:13,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1026 transitions. [2022-11-16 12:22:13,904 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6913746630727763 [2022-11-16 12:22:13,905 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1026 transitions. [2022-11-16 12:22:13,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1026 transitions. [2022-11-16 12:22:13,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:22:13,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1026 transitions. [2022-11-16 12:22:13,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.28571428571429) internal successors, (1026), 14 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:13,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:13,913 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:13,914 INFO L175 Difference]: Start difference. First operand has 221 places, 496 transitions, 6721 flow. Second operand 14 states and 1026 transitions. [2022-11-16 12:22:13,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 706 transitions, 10421 flow [2022-11-16 12:22:14,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 706 transitions, 10233 flow, removed 16 selfloop flow, removed 8 redundant places. [2022-11-16 12:22:14,204 INFO L231 Difference]: Finished difference. Result has 233 places, 546 transitions, 8119 flow [2022-11-16 12:22:14,206 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=6601, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8119, PETRI_PLACES=233, PETRI_TRANSITIONS=546} [2022-11-16 12:22:14,207 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 132 predicate places. [2022-11-16 12:22:14,207 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 546 transitions, 8119 flow [2022-11-16 12:22:14,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:14,208 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:22:14,209 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] [2022-11-16 12:22:14,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:22:14,209 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:22:14,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:14,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1793416745, now seen corresponding path program 3 times [2022-11-16 12:22:14,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:14,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029105424] [2022-11-16 12:22:14,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:14,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:14,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:14,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:14,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029105424] [2022-11-16 12:22:14,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029105424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:14,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:14,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:22:14,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226883176] [2022-11-16 12:22:14,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:14,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:22:14,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:14,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:22:14,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:22:14,841 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:22:14,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 546 transitions, 8119 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:14,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:22:14,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:22:14,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:22:18,092 INFO L130 PetriNetUnfolder]: 2460/6333 cut-off events. [2022-11-16 12:22:18,092 INFO L131 PetriNetUnfolder]: For 51119/51143 co-relation queries the response was YES. [2022-11-16 12:22:18,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30249 conditions, 6333 events. 2460/6333 cut-off events. For 51119/51143 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 53357 event pairs, 345 based on Foata normal form. 25/6235 useless extension candidates. Maximal degree in co-relation 30142. Up to 1719 conditions per place. [2022-11-16 12:22:18,167 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 833 selfloop transitions, 168 changer transitions 8/1063 dead transitions. [2022-11-16 12:22:18,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 1063 transitions, 15105 flow [2022-11-16 12:22:18,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:22:18,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:22:18,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1220 transitions. [2022-11-16 12:22:18,174 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2022-11-16 12:22:18,174 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1220 transitions. [2022-11-16 12:22:18,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1220 transitions. [2022-11-16 12:22:18,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:22:18,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1220 transitions. [2022-11-16 12:22:18,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.33333333333333) internal successors, (1220), 15 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:18,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:18,183 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:18,183 INFO L175 Difference]: Start difference. First operand has 233 places, 546 transitions, 8119 flow. Second operand 15 states and 1220 transitions. [2022-11-16 12:22:18,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 1063 transitions, 15105 flow [2022-11-16 12:22:18,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1063 transitions, 14893 flow, removed 66 selfloop flow, removed 5 redundant places. [2022-11-16 12:22:18,526 INFO L231 Difference]: Finished difference. Result has 248 places, 591 transitions, 9391 flow [2022-11-16 12:22:18,527 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7999, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9391, PETRI_PLACES=248, PETRI_TRANSITIONS=591} [2022-11-16 12:22:18,528 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 147 predicate places. [2022-11-16 12:22:18,528 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 591 transitions, 9391 flow [2022-11-16 12:22:18,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:18,529 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:22:18,529 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] [2022-11-16 12:22:18,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:22:18,530 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:22:18,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:18,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1825936771, now seen corresponding path program 5 times [2022-11-16 12:22:18,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:18,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110118624] [2022-11-16 12:22:18,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:18,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:19,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:19,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:19,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110118624] [2022-11-16 12:22:19,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110118624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:19,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:19,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:22:19,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071458358] [2022-11-16 12:22:19,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:19,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:22:19,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:19,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:22:19,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:22:19,091 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:22:19,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 591 transitions, 9391 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:19,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:22:19,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:22:19,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:22:22,382 INFO L130 PetriNetUnfolder]: 2648/6739 cut-off events. [2022-11-16 12:22:22,382 INFO L131 PetriNetUnfolder]: For 64389/64427 co-relation queries the response was YES. [2022-11-16 12:22:22,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34031 conditions, 6739 events. 2648/6739 cut-off events. For 64389/64427 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 57472 event pairs, 442 based on Foata normal form. 17/6622 useless extension candidates. Maximal degree in co-relation 33918. Up to 3666 conditions per place. [2022-11-16 12:22:22,511 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 542 selfloop transitions, 220 changer transitions 0/816 dead transitions. [2022-11-16 12:22:22,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 816 transitions, 13642 flow [2022-11-16 12:22:22,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:22:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 12:22:22,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1026 transitions. [2022-11-16 12:22:22,515 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6913746630727763 [2022-11-16 12:22:22,516 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1026 transitions. [2022-11-16 12:22:22,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1026 transitions. [2022-11-16 12:22:22,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:22:22,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1026 transitions. [2022-11-16 12:22:22,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.28571428571429) internal successors, (1026), 14 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:22,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:22,523 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:22,524 INFO L175 Difference]: Start difference. First operand has 248 places, 591 transitions, 9391 flow. Second operand 14 states and 1026 transitions. [2022-11-16 12:22:22,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 816 transitions, 13642 flow [2022-11-16 12:22:23,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 816 transitions, 13383 flow, removed 33 selfloop flow, removed 8 redundant places. [2022-11-16 12:22:23,023 INFO L231 Difference]: Finished difference. Result has 261 places, 644 transitions, 11008 flow [2022-11-16 12:22:23,024 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9226, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11008, PETRI_PLACES=261, PETRI_TRANSITIONS=644} [2022-11-16 12:22:23,025 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 160 predicate places. [2022-11-16 12:22:23,025 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 644 transitions, 11008 flow [2022-11-16 12:22:23,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:23,026 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:22:23,026 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] [2022-11-16 12:22:23,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:22:23,026 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:22:23,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:23,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1941510385, now seen corresponding path program 4 times [2022-11-16 12:22:23,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:23,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564619751] [2022-11-16 12:22:23,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:23,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:23,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:23,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564619751] [2022-11-16 12:22:23,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564619751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:23,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:23,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:22:23,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058256749] [2022-11-16 12:22:23,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:23,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:22:23,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:23,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:22:23,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:22:23,655 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:22:23,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 644 transitions, 11008 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:23,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:22:23,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:22:23,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:22:27,381 INFO L130 PetriNetUnfolder]: 2821/7181 cut-off events. [2022-11-16 12:22:27,382 INFO L131 PetriNetUnfolder]: For 78907/78935 co-relation queries the response was YES. [2022-11-16 12:22:27,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37614 conditions, 7181 events. 2821/7181 cut-off events. For 78907/78935 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 61953 event pairs, 487 based on Foata normal form. 27/7071 useless extension candidates. Maximal degree in co-relation 37493. Up to 2074 conditions per place. [2022-11-16 12:22:27,651 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 917 selfloop transitions, 197 changer transitions 6/1174 dead transitions. [2022-11-16 12:22:27,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 1174 transitions, 18850 flow [2022-11-16 12:22:27,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:22:27,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:22:27,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1220 transitions. [2022-11-16 12:22:27,655 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2022-11-16 12:22:27,655 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1220 transitions. [2022-11-16 12:22:27,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1220 transitions. [2022-11-16 12:22:27,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:22:27,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1220 transitions. [2022-11-16 12:22:27,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.33333333333333) internal successors, (1220), 15 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:27,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:27,672 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:27,673 INFO L175 Difference]: Start difference. First operand has 261 places, 644 transitions, 11008 flow. Second operand 15 states and 1220 transitions. [2022-11-16 12:22:27,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 1174 transitions, 18850 flow [2022-11-16 12:22:28,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 1174 transitions, 18726 flow, removed 50 selfloop flow, removed 4 redundant places. [2022-11-16 12:22:28,076 INFO L231 Difference]: Finished difference. Result has 278 places, 691 transitions, 12582 flow [2022-11-16 12:22:28,076 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=10900, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12582, PETRI_PLACES=278, PETRI_TRANSITIONS=691} [2022-11-16 12:22:28,077 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 177 predicate places. [2022-11-16 12:22:28,077 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 691 transitions, 12582 flow [2022-11-16 12:22:28,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:28,078 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:22:28,078 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] [2022-11-16 12:22:28,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:22:28,078 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:22:28,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:28,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2147339439, now seen corresponding path program 6 times [2022-11-16 12:22:28,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:28,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593245338] [2022-11-16 12:22:28,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:28,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:28,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:28,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593245338] [2022-11-16 12:22:28,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593245338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:28,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:28,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:22:28,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154155970] [2022-11-16 12:22:28,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:28,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:22:28,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:28,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:22:28,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:22:28,518 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:22:28,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 691 transitions, 12582 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:28,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:22:28,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:22:28,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:22:32,497 INFO L130 PetriNetUnfolder]: 3471/8836 cut-off events. [2022-11-16 12:22:32,497 INFO L131 PetriNetUnfolder]: For 103336/103357 co-relation queries the response was YES. [2022-11-16 12:22:32,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47148 conditions, 8836 events. 3471/8836 cut-off events. For 103336/103357 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 79487 event pairs, 656 based on Foata normal form. 11/8669 useless extension candidates. Maximal degree in co-relation 47020. Up to 4267 conditions per place. [2022-11-16 12:22:32,637 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 796 selfloop transitions, 213 changer transitions 1/1064 dead transitions. [2022-11-16 12:22:32,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 1064 transitions, 19008 flow [2022-11-16 12:22:32,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:22:32,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 12:22:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1046 transitions. [2022-11-16 12:22:32,645 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7048517520215634 [2022-11-16 12:22:32,646 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1046 transitions. [2022-11-16 12:22:32,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1046 transitions. [2022-11-16 12:22:32,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:22:32,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1046 transitions. [2022-11-16 12:22:32,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 74.71428571428571) internal successors, (1046), 14 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:32,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:32,664 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:32,672 INFO L175 Difference]: Start difference. First operand has 278 places, 691 transitions, 12582 flow. Second operand 14 states and 1046 transitions. [2022-11-16 12:22:32,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 1064 transitions, 19008 flow [2022-11-16 12:22:33,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1064 transitions, 18757 flow, removed 20 selfloop flow, removed 7 redundant places. [2022-11-16 12:22:33,287 INFO L231 Difference]: Finished difference. Result has 293 places, 748 transitions, 14495 flow [2022-11-16 12:22:33,288 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=12410, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14495, PETRI_PLACES=293, PETRI_TRANSITIONS=748} [2022-11-16 12:22:33,288 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 192 predicate places. [2022-11-16 12:22:33,289 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 748 transitions, 14495 flow [2022-11-16 12:22:33,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:33,290 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:22:33,290 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] [2022-11-16 12:22:33,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:22:33,290 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:22:33,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:33,291 INFO L85 PathProgramCache]: Analyzing trace with hash -946221503, now seen corresponding path program 5 times [2022-11-16 12:22:33,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:33,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923770892] [2022-11-16 12:22:33,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:33,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:33,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:33,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:33,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923770892] [2022-11-16 12:22:33,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923770892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:33,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:33,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:22:33,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442044727] [2022-11-16 12:22:33,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:33,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:22:33,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:33,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:22:33,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:22:33,702 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:22:33,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 748 transitions, 14495 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:33,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:22:33,703 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:22:33,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:22:39,344 INFO L130 PetriNetUnfolder]: 4007/10212 cut-off events. [2022-11-16 12:22:39,344 INFO L131 PetriNetUnfolder]: For 136274/136312 co-relation queries the response was YES. [2022-11-16 12:22:39,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56240 conditions, 10212 events. 4007/10212 cut-off events. For 136274/136312 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 94811 event pairs, 729 based on Foata normal form. 31/10040 useless extension candidates. Maximal degree in co-relation 56103. Up to 3277 conditions per place. [2022-11-16 12:22:39,788 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1155 selfloop transitions, 205 changer transitions 2/1416 dead transitions. [2022-11-16 12:22:39,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1416 transitions, 25348 flow [2022-11-16 12:22:39,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:22:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:22:39,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1223 transitions. [2022-11-16 12:22:39,796 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.769182389937107 [2022-11-16 12:22:39,796 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1223 transitions. [2022-11-16 12:22:39,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1223 transitions. [2022-11-16 12:22:39,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:22:39,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1223 transitions. [2022-11-16 12:22:39,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.53333333333333) internal successors, (1223), 15 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:39,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:39,805 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:39,805 INFO L175 Difference]: Start difference. First operand has 293 places, 748 transitions, 14495 flow. Second operand 15 states and 1223 transitions. [2022-11-16 12:22:39,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1416 transitions, 25348 flow [2022-11-16 12:22:40,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 1416 transitions, 25164 flow, removed 80 selfloop flow, removed 4 redundant places. [2022-11-16 12:22:40,841 INFO L231 Difference]: Finished difference. Result has 310 places, 799 transitions, 16172 flow [2022-11-16 12:22:40,842 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=14334, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16172, PETRI_PLACES=310, PETRI_TRANSITIONS=799} [2022-11-16 12:22:40,843 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 209 predicate places. [2022-11-16 12:22:40,843 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 799 transitions, 16172 flow [2022-11-16 12:22:40,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:40,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:22:40,844 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] [2022-11-16 12:22:40,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:22:40,844 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:22:40,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:40,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1785061653, now seen corresponding path program 7 times [2022-11-16 12:22:40,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:40,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478021768] [2022-11-16 12:22:40,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:40,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:41,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:41,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:41,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478021768] [2022-11-16 12:22:41,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478021768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:41,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:41,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:22:41,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249383878] [2022-11-16 12:22:41,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:41,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:22:41,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:41,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:22:41,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:22:41,390 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:22:41,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 799 transitions, 16172 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:41,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:22:41,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:22:41,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:22:47,331 INFO L130 PetriNetUnfolder]: 4551/11563 cut-off events. [2022-11-16 12:22:47,331 INFO L131 PetriNetUnfolder]: For 163027/163048 co-relation queries the response was YES. [2022-11-16 12:22:47,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64816 conditions, 11563 events. 4551/11563 cut-off events. For 163027/163048 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 109519 event pairs, 921 based on Foata normal form. 11/11327 useless extension candidates. Maximal degree in co-relation 64672. Up to 4251 conditions per place. [2022-11-16 12:22:47,493 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1006 selfloop transitions, 252 changer transitions 1/1313 dead transitions. [2022-11-16 12:22:47,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 1313 transitions, 24969 flow [2022-11-16 12:22:47,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:22:47,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:22:47,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1139 transitions. [2022-11-16 12:22:47,495 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7163522012578616 [2022-11-16 12:22:47,495 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1139 transitions. [2022-11-16 12:22:47,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1139 transitions. [2022-11-16 12:22:47,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:22:47,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1139 transitions. [2022-11-16 12:22:47,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.93333333333334) internal successors, (1139), 15 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:47,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:47,503 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:47,503 INFO L175 Difference]: Start difference. First operand has 310 places, 799 transitions, 16172 flow. Second operand 15 states and 1139 transitions. [2022-11-16 12:22:47,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 1313 transitions, 24969 flow [2022-11-16 12:22:48,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 1313 transitions, 24689 flow, removed 41 selfloop flow, removed 7 redundant places. [2022-11-16 12:22:48,733 INFO L231 Difference]: Finished difference. Result has 326 places, 868 transitions, 18706 flow [2022-11-16 12:22:48,734 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=15958, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=799, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18706, PETRI_PLACES=326, PETRI_TRANSITIONS=868} [2022-11-16 12:22:48,735 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 225 predicate places. [2022-11-16 12:22:48,735 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 868 transitions, 18706 flow [2022-11-16 12:22:48,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:48,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:22:48,736 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] [2022-11-16 12:22:48,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:22:48,737 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:22:48,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:48,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1928416905, now seen corresponding path program 6 times [2022-11-16 12:22:48,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:48,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305436596] [2022-11-16 12:22:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:48,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:49,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:49,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305436596] [2022-11-16 12:22:49,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305436596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:49,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:49,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:22:49,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310139186] [2022-11-16 12:22:49,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:49,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:22:49,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:49,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:22:49,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:22:49,322 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:22:49,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 868 transitions, 18706 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:49,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:22:49,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:22:49,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:22:56,587 INFO L130 PetriNetUnfolder]: 4534/11505 cut-off events. [2022-11-16 12:22:56,587 INFO L131 PetriNetUnfolder]: For 183420/183463 co-relation queries the response was YES. [2022-11-16 12:22:56,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66167 conditions, 11505 events. 4534/11505 cut-off events. For 183420/183463 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 109277 event pairs, 904 based on Foata normal form. 31/11294 useless extension candidates. Maximal degree in co-relation 66014. Up to 4270 conditions per place. [2022-11-16 12:22:56,793 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1111 selfloop transitions, 220 changer transitions 4/1389 dead transitions. [2022-11-16 12:22:56,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 1389 transitions, 27849 flow [2022-11-16 12:22:56,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:22:56,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:22:56,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1175 transitions. [2022-11-16 12:22:56,795 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7389937106918238 [2022-11-16 12:22:56,795 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1175 transitions. [2022-11-16 12:22:56,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1175 transitions. [2022-11-16 12:22:56,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:22:56,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1175 transitions. [2022-11-16 12:22:56,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.33333333333333) internal successors, (1175), 15 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:56,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:56,801 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:56,801 INFO L175 Difference]: Start difference. First operand has 326 places, 868 transitions, 18706 flow. Second operand 15 states and 1175 transitions. [2022-11-16 12:22:56,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 1389 transitions, 27849 flow [2022-11-16 12:22:58,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 1389 transitions, 27553 flow, removed 144 selfloop flow, removed 3 redundant places. [2022-11-16 12:22:58,297 INFO L231 Difference]: Finished difference. Result has 345 places, 902 transitions, 19910 flow [2022-11-16 12:22:58,298 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=18450, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19910, PETRI_PLACES=345, PETRI_TRANSITIONS=902} [2022-11-16 12:22:58,299 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 244 predicate places. [2022-11-16 12:22:58,299 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 902 transitions, 19910 flow [2022-11-16 12:22:58,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:58,300 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:22:58,300 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] [2022-11-16 12:22:58,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:22:58,301 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:22:58,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:58,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1819060442, now seen corresponding path program 1 times [2022-11-16 12:22:58,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:58,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006560463] [2022-11-16 12:22:58,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:58,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:58,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:58,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006560463] [2022-11-16 12:22:58,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006560463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:58,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:58,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:22:58,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031889610] [2022-11-16 12:22:58,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:58,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:22:58,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:58,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:22:58,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:22:58,791 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-16 12:22:58,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 902 transitions, 19910 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:58,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:22:58,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-16 12:22:58,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:07,148 INFO L130 PetriNetUnfolder]: 5123/12486 cut-off events. [2022-11-16 12:23:07,148 INFO L131 PetriNetUnfolder]: For 203877/203892 co-relation queries the response was YES. [2022-11-16 12:23:07,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72586 conditions, 12486 events. 5123/12486 cut-off events. For 203877/203892 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 116762 event pairs, 1521 based on Foata normal form. 13/12213 useless extension candidates. Maximal degree in co-relation 72425. Up to 4958 conditions per place. [2022-11-16 12:23:07,463 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1016 selfloop transitions, 258 changer transitions 7/1332 dead transitions. [2022-11-16 12:23:07,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1332 transitions, 27465 flow [2022-11-16 12:23:07,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:23:07,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 12:23:07,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1111 transitions. [2022-11-16 12:23:07,466 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7486522911051213 [2022-11-16 12:23:07,467 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1111 transitions. [2022-11-16 12:23:07,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1111 transitions. [2022-11-16 12:23:07,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:07,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1111 transitions. [2022-11-16 12:23:07,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.35714285714286) internal successors, (1111), 14 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:07,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:07,473 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:07,474 INFO L175 Difference]: Start difference. First operand has 345 places, 902 transitions, 19910 flow. Second operand 14 states and 1111 transitions. [2022-11-16 12:23:07,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1332 transitions, 27465 flow [2022-11-16 12:23:09,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 1332 transitions, 27147 flow, removed 95 selfloop flow, removed 6 redundant places. [2022-11-16 12:23:09,525 INFO L231 Difference]: Finished difference. Result has 361 places, 1044 transitions, 22610 flow [2022-11-16 12:23:09,526 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=19593, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22610, PETRI_PLACES=361, PETRI_TRANSITIONS=1044} [2022-11-16 12:23:09,527 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 260 predicate places. [2022-11-16 12:23:09,527 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 1044 transitions, 22610 flow [2022-11-16 12:23:09,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:09,528 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:09,528 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] [2022-11-16 12:23:09,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:23:09,528 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:23:09,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:09,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1048791595, now seen corresponding path program 8 times [2022-11-16 12:23:09,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:09,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834675519] [2022-11-16 12:23:09,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:09,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:10,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:10,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:10,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834675519] [2022-11-16 12:23:10,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834675519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:10,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:10,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:23:10,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330328647] [2022-11-16 12:23:10,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:10,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:23:10,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:10,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:23:10,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:23:10,132 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-16 12:23:10,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 1044 transitions, 22610 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:10,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:10,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-16 12:23:10,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:18,086 INFO L130 PetriNetUnfolder]: 4562/11530 cut-off events. [2022-11-16 12:23:18,086 INFO L131 PetriNetUnfolder]: For 204405/204455 co-relation queries the response was YES. [2022-11-16 12:23:18,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70501 conditions, 11530 events. 4562/11530 cut-off events. For 204405/204455 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 109107 event pairs, 972 based on Foata normal form. 22/11299 useless extension candidates. Maximal degree in co-relation 70332. Up to 4153 conditions per place. [2022-11-16 12:23:18,345 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1189 selfloop transitions, 278 changer transitions 0/1525 dead transitions. [2022-11-16 12:23:18,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1525 transitions, 31733 flow [2022-11-16 12:23:18,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:23:18,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 12:23:18,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1233 transitions. [2022-11-16 12:23:18,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7270047169811321 [2022-11-16 12:23:18,348 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1233 transitions. [2022-11-16 12:23:18,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1233 transitions. [2022-11-16 12:23:18,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:18,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1233 transitions. [2022-11-16 12:23:18,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 77.0625) internal successors, (1233), 16 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,356 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,357 INFO L175 Difference]: Start difference. First operand has 361 places, 1044 transitions, 22610 flow. Second operand 16 states and 1233 transitions. [2022-11-16 12:23:18,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1525 transitions, 31733 flow [2022-11-16 12:23:20,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 1525 transitions, 31375 flow, removed 173 selfloop flow, removed 3 redundant places. [2022-11-16 12:23:20,452 INFO L231 Difference]: Finished difference. Result has 380 places, 1093 transitions, 24455 flow [2022-11-16 12:23:20,453 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=22414, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1044, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=24455, PETRI_PLACES=380, PETRI_TRANSITIONS=1093} [2022-11-16 12:23:20,454 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 279 predicate places. [2022-11-16 12:23:20,454 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 1093 transitions, 24455 flow [2022-11-16 12:23:20,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:20,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:20,455 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] [2022-11-16 12:23:20,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:23:20,456 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:23:20,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:20,457 INFO L85 PathProgramCache]: Analyzing trace with hash 67520552, now seen corresponding path program 2 times [2022-11-16 12:23:20,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:20,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026136247] [2022-11-16 12:23:20,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:20,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:21,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:21,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026136247] [2022-11-16 12:23:21,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026136247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:21,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:21,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:23:21,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646779598] [2022-11-16 12:23:21,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:21,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:23:21,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:21,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:23:21,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:23:21,038 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-16 12:23:21,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1093 transitions, 24455 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:21,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:21,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-16 12:23:21,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:30,568 INFO L130 PetriNetUnfolder]: 5193/12668 cut-off events. [2022-11-16 12:23:30,569 INFO L131 PetriNetUnfolder]: For 233856/233895 co-relation queries the response was YES. [2022-11-16 12:23:30,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77831 conditions, 12668 events. 5193/12668 cut-off events. For 233856/233895 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 118872 event pairs, 1541 based on Foata normal form. 27/12409 useless extension candidates. Maximal degree in co-relation 77655. Up to 4958 conditions per place. [2022-11-16 12:23:31,108 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1076 selfloop transitions, 305 changer transitions 7/1439 dead transitions. [2022-11-16 12:23:31,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 1439 transitions, 31453 flow [2022-11-16 12:23:31,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:23:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:23:31,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1184 transitions. [2022-11-16 12:23:31,113 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7446540880503144 [2022-11-16 12:23:31,113 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1184 transitions. [2022-11-16 12:23:31,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1184 transitions. [2022-11-16 12:23:31,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:31,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1184 transitions. [2022-11-16 12:23:31,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.93333333333334) internal successors, (1184), 15 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:31,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:31,122 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:31,122 INFO L175 Difference]: Start difference. First operand has 380 places, 1093 transitions, 24455 flow. Second operand 15 states and 1184 transitions. [2022-11-16 12:23:31,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 1439 transitions, 31453 flow [2022-11-16 12:23:33,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 1439 transitions, 31171 flow, removed 138 selfloop flow, removed 3 redundant places. [2022-11-16 12:23:33,545 INFO L231 Difference]: Finished difference. Result has 396 places, 1127 transitions, 25766 flow [2022-11-16 12:23:33,545 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=24285, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1093, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=271, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=792, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25766, PETRI_PLACES=396, PETRI_TRANSITIONS=1127} [2022-11-16 12:23:33,546 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 295 predicate places. [2022-11-16 12:23:33,547 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 1127 transitions, 25766 flow [2022-11-16 12:23:33,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:33,547 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:33,547 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] [2022-11-16 12:23:33,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:23:33,548 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:23:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:33,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1282196086, now seen corresponding path program 3 times [2022-11-16 12:23:33,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:33,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434848265] [2022-11-16 12:23:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:33,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:34,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:34,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434848265] [2022-11-16 12:23:34,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434848265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:34,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:34,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:23:34,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770645398] [2022-11-16 12:23:34,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:34,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:23:34,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:34,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:23:34,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:23:34,132 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-16 12:23:34,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 1127 transitions, 25766 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:34,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:34,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-16 12:23:34,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:42,664 INFO L130 PetriNetUnfolder]: 5283/12830 cut-off events. [2022-11-16 12:23:42,664 INFO L131 PetriNetUnfolder]: For 243598/243663 co-relation queries the response was YES. [2022-11-16 12:23:42,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81209 conditions, 12830 events. 5283/12830 cut-off events. For 243598/243663 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 120522 event pairs, 1568 based on Foata normal form. 33/12576 useless extension candidates. Maximal degree in co-relation 81027. Up to 4958 conditions per place. [2022-11-16 12:23:42,945 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1293 selfloop transitions, 272 changer transitions 8/1624 dead transitions. [2022-11-16 12:23:42,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 1624 transitions, 34990 flow [2022-11-16 12:23:42,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:23:42,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:23:42,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1199 transitions. [2022-11-16 12:23:42,949 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7540880503144655 [2022-11-16 12:23:42,949 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1199 transitions. [2022-11-16 12:23:42,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1199 transitions. [2022-11-16 12:23:42,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:42,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1199 transitions. [2022-11-16 12:23:42,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.93333333333334) internal successors, (1199), 15 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:42,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:42,956 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:42,956 INFO L175 Difference]: Start difference. First operand has 396 places, 1127 transitions, 25766 flow. Second operand 15 states and 1199 transitions. [2022-11-16 12:23:42,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 1624 transitions, 34990 flow [2022-11-16 12:23:45,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 1624 transitions, 34848 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-11-16 12:23:45,320 INFO L231 Difference]: Finished difference. Result has 409 places, 1208 transitions, 27723 flow [2022-11-16 12:23:45,320 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=25624, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=866, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27723, PETRI_PLACES=409, PETRI_TRANSITIONS=1208} [2022-11-16 12:23:45,321 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 308 predicate places. [2022-11-16 12:23:45,321 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 1208 transitions, 27723 flow [2022-11-16 12:23:45,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:45,322 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:45,322 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] [2022-11-16 12:23:45,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:23:45,322 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:23:45,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:45,323 INFO L85 PathProgramCache]: Analyzing trace with hash 909472264, now seen corresponding path program 4 times [2022-11-16 12:23:45,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:45,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263927827] [2022-11-16 12:23:45,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:45,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:45,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:45,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:45,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263927827] [2022-11-16 12:23:45,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263927827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:45,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:45,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:23:45,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656038303] [2022-11-16 12:23:45,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:45,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:23:45,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:45,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:23:45,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:23:45,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-16 12:23:45,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 1208 transitions, 27723 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:45,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:45,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-16 12:23:45,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:55,619 INFO L130 PetriNetUnfolder]: 5389/13099 cut-off events. [2022-11-16 12:23:55,619 INFO L131 PetriNetUnfolder]: For 268573/268653 co-relation queries the response was YES. [2022-11-16 12:23:55,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86198 conditions, 13099 events. 5389/13099 cut-off events. For 268573/268653 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 123671 event pairs, 1611 based on Foata normal form. 35/12846 useless extension candidates. Maximal degree in co-relation 86011. Up to 4958 conditions per place. [2022-11-16 12:23:55,948 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1172 selfloop transitions, 375 changer transitions 6/1604 dead transitions. [2022-11-16 12:23:55,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 1604 transitions, 36127 flow [2022-11-16 12:23:55,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:23:55,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:23:55,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1180 transitions. [2022-11-16 12:23:55,951 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7421383647798742 [2022-11-16 12:23:55,951 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1180 transitions. [2022-11-16 12:23:55,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1180 transitions. [2022-11-16 12:23:55,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:55,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1180 transitions. [2022-11-16 12:23:55,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.66666666666667) internal successors, (1180), 15 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:55,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:55,956 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:55,957 INFO L175 Difference]: Start difference. First operand has 409 places, 1208 transitions, 27723 flow. Second operand 15 states and 1180 transitions. [2022-11-16 12:23:55,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 1604 transitions, 36127 flow [2022-11-16 12:23:59,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 1604 transitions, 35674 flow, removed 61 selfloop flow, removed 10 redundant places. [2022-11-16 12:23:59,211 INFO L231 Difference]: Finished difference. Result has 419 places, 1271 transitions, 29805 flow [2022-11-16 12:23:59,211 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=27304, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=322, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=851, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=29805, PETRI_PLACES=419, PETRI_TRANSITIONS=1271} [2022-11-16 12:23:59,212 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 318 predicate places. [2022-11-16 12:23:59,212 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 1271 transitions, 29805 flow [2022-11-16 12:23:59,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:59,212 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:59,212 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] [2022-11-16 12:23:59,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:23:59,213 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:23:59,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:59,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1828708101, now seen corresponding path program 1 times [2022-11-16 12:23:59,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:59,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924991760] [2022-11-16 12:23:59,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:59,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:59,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:59,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:59,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924991760] [2022-11-16 12:23:59,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924991760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:59,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:59,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:23:59,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825123776] [2022-11-16 12:23:59,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:59,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:23:59,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:59,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:23:59,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:23:59,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-16 12:23:59,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 1271 transitions, 29805 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:59,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:59,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-16 12:23:59,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:24:08,569 INFO L130 PetriNetUnfolder]: 5164/12710 cut-off events. [2022-11-16 12:24:08,570 INFO L131 PetriNetUnfolder]: For 283797/283897 co-relation queries the response was YES. [2022-11-16 12:24:08,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86295 conditions, 12710 events. 5164/12710 cut-off events. For 283797/283897 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 120439 event pairs, 1458 based on Foata normal form. 65/12531 useless extension candidates. Maximal degree in co-relation 86104. Up to 5048 conditions per place. [2022-11-16 12:24:08,915 INFO L137 encePairwiseOnDemand]: 85/106 looper letters, 1503 selfloop transitions, 201 changer transitions 0/1765 dead transitions. [2022-11-16 12:24:08,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 1765 transitions, 40700 flow [2022-11-16 12:24:08,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:24:08,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 12:24:08,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1209 transitions. [2022-11-16 12:24:08,918 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7128537735849056 [2022-11-16 12:24:08,918 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1209 transitions. [2022-11-16 12:24:08,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1209 transitions. [2022-11-16 12:24:08,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:24:08,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1209 transitions. [2022-11-16 12:24:08,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 75.5625) internal successors, (1209), 16 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:08,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:08,922 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:08,922 INFO L175 Difference]: Start difference. First operand has 419 places, 1271 transitions, 29805 flow. Second operand 16 states and 1209 transitions. [2022-11-16 12:24:08,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 1765 transitions, 40700 flow [2022-11-16 12:24:11,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 1765 transitions, 40160 flow, removed 94 selfloop flow, removed 8 redundant places. [2022-11-16 12:24:11,728 INFO L231 Difference]: Finished difference. Result has 433 places, 1348 transitions, 31253 flow [2022-11-16 12:24:11,729 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=29352, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1098, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=31253, PETRI_PLACES=433, PETRI_TRANSITIONS=1348} [2022-11-16 12:24:11,729 INFO L288 CegarLoopForPetriNet]: 101 programPoint places, 332 predicate places. [2022-11-16 12:24:11,730 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 1348 transitions, 31253 flow [2022-11-16 12:24:11,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:11,730 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:24:11,730 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] [2022-11-16 12:24:11,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:24:11,730 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 12:24:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:11,731 INFO L85 PathProgramCache]: Analyzing trace with hash -288094266, now seen corresponding path program 5 times [2022-11-16 12:24:11,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:24:11,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361639919] [2022-11-16 12:24:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:24:11,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:24:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:12,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:24:12,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:24:12,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361639919] [2022-11-16 12:24:12,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361639919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:24:12,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:24:12,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:24:12,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932498438] [2022-11-16 12:24:12,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:12,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:24:12,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:24:12,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:24:12,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:24:12,254 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-16 12:24:12,254 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1348 transitions, 31253 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:12,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:24:12,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-16 12:24:12,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand