./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_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_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/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_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/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_33160af5-be88-45f0-9fe5-e7528a3a7e93/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 c488feb98493d291286969cd9fdbd15fc14c729caece3fe94bd3c70430190936 --- 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 12:05:40,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:05:40,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:05:40,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:05:40,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:05:40,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:05:40,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:05:40,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:05:40,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:05:40,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:05:40,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:05:40,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:05:40,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:05:40,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:05:40,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:05:40,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:05:40,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:05:40,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:05:40,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:05:40,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:05:40,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:05:40,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:05:40,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:05:40,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:05:40,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:05:40,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:05:40,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:05:40,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:05:40,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:05:40,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:05:40,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:05:40,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:05:40,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:05:40,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:05:40,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:05:40,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:05:40,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:05:40,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:05:40,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:05:40,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:05:40,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:05:40,239 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:05:40,285 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:05:40,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:05:40,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:05:40,287 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:05:40,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:05:40,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:05:40,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:05:40,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:05:40,290 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:05:40,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:05:40,292 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:05:40,292 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:05:40,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:05:40,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:05:40,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:05:40,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:05:40,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:05:40,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:05:40,294 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:05:40,294 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:05:40,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:05:40,295 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:05:40,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:05:40,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:05:40,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:05:40,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:05:40,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:05:40,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:05:40,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:05:40,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:05:40,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:05:40,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:05:40,298 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:05:40,298 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:05:40,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:05:40,299 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_33160af5-be88-45f0-9fe5-e7528a3a7e93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c488feb98493d291286969cd9fdbd15fc14c729caece3fe94bd3c70430190936 [2022-11-16 12:05:40,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:05:40,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:05:40,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:05:40,703 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:05:40,705 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:05:40,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-11-16 12:05:40,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/data/ff8fa90c7/49a014c39c514deeadbfa4b11fa2602c/FLAG1552aac49 [2022-11-16 12:05:41,502 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:05:41,503 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-11-16 12:05:41,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/data/ff8fa90c7/49a014c39c514deeadbfa4b11fa2602c/FLAG1552aac49 [2022-11-16 12:05:41,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/data/ff8fa90c7/49a014c39c514deeadbfa4b11fa2602c [2022-11-16 12:05:41,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:05:41,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:05:41,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:05:41,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:05:41,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:05:41,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:05:41" (1/1) ... [2022-11-16 12:05:41,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57360157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:41, skipping insertion in model container [2022-11-16 12:05:41,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:05:41" (1/1) ... [2022-11-16 12:05:41,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:05:41,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:05:42,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:05:42,566 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:05:42,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:05:42,748 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:05:42,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42 WrapperNode [2022-11-16 12:05:42,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:05:42,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:05:42,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:05:42,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:05:42,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (1/1) ... [2022-11-16 12:05:42,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (1/1) ... [2022-11-16 12:05:42,852 INFO L138 Inliner]: procedures = 371, calls = 35, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 233 [2022-11-16 12:05:42,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:05:42,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:05:42,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:05:42,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:05:42,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (1/1) ... [2022-11-16 12:05:42,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (1/1) ... [2022-11-16 12:05:42,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (1/1) ... [2022-11-16 12:05:42,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (1/1) ... [2022-11-16 12:05:42,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (1/1) ... [2022-11-16 12:05:42,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (1/1) ... [2022-11-16 12:05:42,959 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (1/1) ... [2022-11-16 12:05:42,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (1/1) ... [2022-11-16 12:05:42,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:05:42,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:05:42,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:05:42,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:05:42,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (1/1) ... [2022-11-16 12:05:42,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:05:43,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:05:43,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:05:43,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:05:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:05:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:05:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:05:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:05:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:05:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:05:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:05:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:05:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:05:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:05:43,111 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:05:43,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:05:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:05:43,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:05:43,114 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 12:05:43,347 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:05:43,350 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:05:44,104 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:05:44,127 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:05:44,127 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:05:44,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:05:44 BoogieIcfgContainer [2022-11-16 12:05:44,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:05:44,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:05:44,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:05:44,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:05:44,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:05:41" (1/3) ... [2022-11-16 12:05:44,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b911cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:05:44, skipping insertion in model container [2022-11-16 12:05:44,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:05:42" (2/3) ... [2022-11-16 12:05:44,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b911cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:05:44, skipping insertion in model container [2022-11-16 12:05:44,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:05:44" (3/3) ... [2022-11-16 12:05:44,142 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_11-arraylist_nr.i [2022-11-16 12:05:44,153 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:05:44,166 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:05:44,167 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-16 12:05:44,167 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:05:44,317 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:05:44,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 280 transitions, 565 flow [2022-11-16 12:05:44,506 INFO L130 PetriNetUnfolder]: 4/279 cut-off events. [2022-11-16 12:05:44,507 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:05:44,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 279 events. 4/279 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-11-16 12:05:44,516 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 280 transitions, 565 flow [2022-11-16 12:05:44,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 279 transitions, 561 flow [2022-11-16 12:05:44,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:05:44,553 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;@4198c0af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:05:44,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-16 12:05:44,568 INFO L130 PetriNetUnfolder]: 3/54 cut-off events. [2022-11-16 12:05:44,568 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:05:44,568 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:05:44,569 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 12:05:44,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:05:44,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:44,577 INFO L85 PathProgramCache]: Analyzing trace with hash 52702265, now seen corresponding path program 1 times [2022-11-16 12:05:44,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:44,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694326435] [2022-11-16 12:05:44,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:44,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:44,951 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 12:05:44,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:44,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694326435] [2022-11-16 12:05:44,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694326435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:44,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:44,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:05:44,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222703465] [2022-11-16 12:05:44,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:44,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:05:44,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:45,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:05:45,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:05:45,046 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 280 [2022-11-16 12:05:45,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 279 transitions, 561 flow. Second operand has 2 states, 2 states have (on average 276.5) internal successors, (553), 2 states have internal predecessors, (553), 0 states have call successors, (0), 0 states 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 12:05:45,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:05:45,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 280 [2022-11-16 12:05:45,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:05:45,190 INFO L130 PetriNetUnfolder]: 1/276 cut-off events. [2022-11-16 12:05:45,190 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:05:45,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 276 events. 1/276 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 0 based on Foata normal form. 3/258 useless extension candidates. Maximal degree in co-relation 151. Up to 2 conditions per place. [2022-11-16 12:05:45,195 INFO L137 encePairwiseOnDemand]: 277/280 looper letters, 1 selfloop transitions, 0 changer transitions 1/276 dead transitions. [2022-11-16 12:05:45,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 276 transitions, 557 flow [2022-11-16 12:05:45,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:05:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 12:05:45,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 556 transitions. [2022-11-16 12:05:45,222 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9928571428571429 [2022-11-16 12:05:45,223 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 556 transitions. [2022-11-16 12:05:45,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 556 transitions. [2022-11-16 12:05:45,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:05:45,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 556 transitions. [2022-11-16 12:05:45,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 278.0) internal successors, (556), 2 states have internal predecessors, (556), 0 states have call successors, (0), 0 states 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 12:05:45,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:45,254 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:45,257 INFO L175 Difference]: Start difference. First operand has 279 places, 279 transitions, 561 flow. Second operand 2 states and 556 transitions. [2022-11-16 12:05:45,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 276 transitions, 557 flow [2022-11-16 12:05:45,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 276 transitions, 556 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:05:45,276 INFO L231 Difference]: Finished difference. Result has 279 places, 275 transitions, 552 flow [2022-11-16 12:05:45,279 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=552, PETRI_PLACES=279, PETRI_TRANSITIONS=275} [2022-11-16 12:05:45,287 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 0 predicate places. [2022-11-16 12:05:45,288 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 275 transitions, 552 flow [2022-11-16 12:05:45,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 276.5) internal successors, (553), 2 states have internal predecessors, (553), 0 states have call successors, (0), 0 states 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 12:05:45,289 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:05:45,289 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 12:05:45,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:05:45,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:05:45,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:45,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1014316282, now seen corresponding path program 1 times [2022-11-16 12:05:45,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:45,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287078459] [2022-11-16 12:05:45,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:45,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:45,524 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 12:05:45,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:45,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287078459] [2022-11-16 12:05:45,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287078459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:45,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:45,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:05:45,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811461691] [2022-11-16 12:05:45,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:45,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:05:45,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:45,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:05:45,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:05:45,532 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 280 [2022-11-16 12:05:45,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 275 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 12:05:45,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:05:45,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 280 [2022-11-16 12:05:45,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:05:45,697 INFO L130 PetriNetUnfolder]: 1/279 cut-off events. [2022-11-16 12:05:45,699 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:05:45,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 279 events. 1/279 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 107 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 293. Up to 9 conditions per place. [2022-11-16 12:05:45,702 INFO L137 encePairwiseOnDemand]: 277/280 looper letters, 10 selfloop transitions, 2 changer transitions 0/279 dead transitions. [2022-11-16 12:05:45,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 279 transitions, 584 flow [2022-11-16 12:05:45,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:05:45,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:05:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2022-11-16 12:05:45,706 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9761904761904762 [2022-11-16 12:05:45,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2022-11-16 12:05:45,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2022-11-16 12:05:45,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:05:45,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2022-11-16 12:05:45,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states 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 12:05:45,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states 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 12:05:45,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states 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 12:05:45,718 INFO L175 Difference]: Start difference. First operand has 279 places, 275 transitions, 552 flow. Second operand 3 states and 820 transitions. [2022-11-16 12:05:45,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 279 transitions, 584 flow [2022-11-16 12:05:45,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 279 transitions, 584 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:05:45,730 INFO L231 Difference]: Finished difference. Result has 281 places, 276 transitions, 564 flow [2022-11-16 12:05:45,731 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=281, PETRI_TRANSITIONS=276} [2022-11-16 12:05:45,732 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 2 predicate places. [2022-11-16 12:05:45,732 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 276 transitions, 564 flow [2022-11-16 12:05:45,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 12:05:45,733 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:05:45,734 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] [2022-11-16 12:05:45,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:05:45,735 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:05:45,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:45,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1446396541, now seen corresponding path program 1 times [2022-11-16 12:05:45,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:45,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964938237] [2022-11-16 12:05:45,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:45,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:45,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:45,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964938237] [2022-11-16 12:05:45,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964938237] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:05:45,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709287965] [2022-11-16 12:05:45,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:45,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:05:45,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:05:45,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:05:45,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:05:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:46,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:05:46,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:46,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:05:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:46,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709287965] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:05:46,303 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:05:46,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 12:05:46,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449541981] [2022-11-16 12:05:46,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:05:46,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:05:46,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:46,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:05:46,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:05:46,315 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 280 [2022-11-16 12:05:46,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 276 transitions, 564 flow. Second operand has 10 states, 10 states have (on average 270.0) internal successors, (2700), 10 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states 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 12:05:46,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:05:46,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 280 [2022-11-16 12:05:46,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:05:46,506 INFO L130 PetriNetUnfolder]: 1/286 cut-off events. [2022-11-16 12:05:46,506 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:05:46,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 286 events. 1/286 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 2/269 useless extension candidates. Maximal degree in co-relation 314. Up to 6 conditions per place. [2022-11-16 12:05:46,508 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 11 selfloop transitions, 9 changer transitions 0/286 dead transitions. [2022-11-16 12:05:46,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 286 transitions, 626 flow [2022-11-16 12:05:46,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:05:46,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:05:46,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2434 transitions. [2022-11-16 12:05:46,515 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9658730158730159 [2022-11-16 12:05:46,515 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2434 transitions. [2022-11-16 12:05:46,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2434 transitions. [2022-11-16 12:05:46,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:05:46,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2434 transitions. [2022-11-16 12:05:46,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 270.44444444444446) internal successors, (2434), 9 states have internal predecessors, (2434), 0 states have call successors, (0), 0 states 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 12:05:46,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 280.0) internal successors, (2800), 10 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states 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 12:05:46,535 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 280.0) internal successors, (2800), 10 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states 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 12:05:46,535 INFO L175 Difference]: Start difference. First operand has 281 places, 276 transitions, 564 flow. Second operand 9 states and 2434 transitions. [2022-11-16 12:05:46,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 286 transitions, 626 flow [2022-11-16 12:05:46,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 286 transitions, 624 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:05:46,559 INFO L231 Difference]: Finished difference. Result has 291 places, 282 transitions, 612 flow [2022-11-16 12:05:46,560 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=612, PETRI_PLACES=291, PETRI_TRANSITIONS=282} [2022-11-16 12:05:46,561 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 12 predicate places. [2022-11-16 12:05:46,561 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 282 transitions, 612 flow [2022-11-16 12:05:46,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 270.0) internal successors, (2700), 10 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states 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 12:05:46,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:05:46,564 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:46,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:05:46,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:05:46,768 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:05:46,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:46,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1557834781, now seen corresponding path program 2 times [2022-11-16 12:05:46,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:46,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581989214] [2022-11-16 12:05:46,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:46,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:47,407 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 12:05:47,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:47,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581989214] [2022-11-16 12:05:47,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581989214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:47,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:47,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:05:47,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098622871] [2022-11-16 12:05:47,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:47,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:05:47,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:47,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:05:47,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:05:47,413 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 280 [2022-11-16 12:05:47,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 282 transitions, 612 flow. Second operand has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 0 states have call successors, (0), 0 states 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 12:05:47,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:05:47,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 280 [2022-11-16 12:05:47,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:05:48,513 INFO L130 PetriNetUnfolder]: 649/2122 cut-off events. [2022-11-16 12:05:48,514 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 12:05:48,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3573 conditions, 2122 events. 649/2122 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11545 event pairs, 648 based on Foata normal form. 0/1872 useless extension candidates. Maximal degree in co-relation 3566. Up to 1408 conditions per place. [2022-11-16 12:05:48,530 INFO L137 encePairwiseOnDemand]: 268/280 looper letters, 111 selfloop transitions, 10 changer transitions 0/280 dead transitions. [2022-11-16 12:05:48,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 280 transitions, 850 flow [2022-11-16 12:05:48,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:05:48,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:05:48,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1047 transitions. [2022-11-16 12:05:48,534 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6232142857142857 [2022-11-16 12:05:48,535 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1047 transitions. [2022-11-16 12:05:48,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1047 transitions. [2022-11-16 12:05:48,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:05:48,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1047 transitions. [2022-11-16 12:05:48,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.5) internal successors, (1047), 6 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states 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 12:05:48,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:05:48,545 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:05:48,545 INFO L175 Difference]: Start difference. First operand has 291 places, 282 transitions, 612 flow. Second operand 6 states and 1047 transitions. [2022-11-16 12:05:48,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 280 transitions, 850 flow [2022-11-16 12:05:48,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 280 transitions, 844 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-16 12:05:48,554 INFO L231 Difference]: Finished difference. Result has 293 places, 280 transitions, 622 flow [2022-11-16 12:05:48,555 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=622, PETRI_PLACES=293, PETRI_TRANSITIONS=280} [2022-11-16 12:05:48,556 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 14 predicate places. [2022-11-16 12:05:48,556 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 280 transitions, 622 flow [2022-11-16 12:05:48,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 0 states have call successors, (0), 0 states 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 12:05:48,557 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:05:48,557 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:48,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:05:48,558 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:05:48,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:48,559 INFO L85 PathProgramCache]: Analyzing trace with hash -47754392, now seen corresponding path program 1 times [2022-11-16 12:05:48,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:48,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479470856] [2022-11-16 12:05:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:48,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:48,776 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:48,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:48,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479470856] [2022-11-16 12:05:48,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479470856] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:05:48,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978146321] [2022-11-16 12:05:48,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:48,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:05:48,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:05:48,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:05:48,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:05:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:48,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:05:48,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:49,062 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:49,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:05:49,210 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:49,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978146321] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:05:49,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:05:49,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 12:05:49,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662239612] [2022-11-16 12:05:49,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:05:49,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:05:49,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:49,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:05:49,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:05:49,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 280 [2022-11-16 12:05:49,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 280 transitions, 622 flow. Second operand has 18 states, 18 states have (on average 270.22222222222223) internal successors, (4864), 18 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states 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 12:05:49,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:05:49,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 280 [2022-11-16 12:05:49,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:05:49,581 INFO L130 PetriNetUnfolder]: 1/304 cut-off events. [2022-11-16 12:05:49,582 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-16 12:05:49,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 304 events. 1/304 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 104 event pairs, 0 based on Foata normal form. 4/291 useless extension candidates. Maximal degree in co-relation 402. Up to 11 conditions per place. [2022-11-16 12:05:49,584 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 19 selfloop transitions, 21 changer transitions 0/304 dead transitions. [2022-11-16 12:05:49,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 304 transitions, 802 flow [2022-11-16 12:05:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:05:49,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:05:49,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5672 transitions. [2022-11-16 12:05:49,601 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964625850340136 [2022-11-16 12:05:49,601 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5672 transitions. [2022-11-16 12:05:49,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5672 transitions. [2022-11-16 12:05:49,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:05:49,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5672 transitions. [2022-11-16 12:05:49,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 270.0952380952381) internal successors, (5672), 21 states have internal predecessors, (5672), 0 states have call successors, (0), 0 states 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 12:05:49,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 280.0) internal successors, (6160), 22 states have internal predecessors, (6160), 0 states have call successors, (0), 0 states 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 12:05:49,646 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 280.0) internal successors, (6160), 22 states have internal predecessors, (6160), 0 states have call successors, (0), 0 states 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 12:05:49,647 INFO L175 Difference]: Start difference. First operand has 293 places, 280 transitions, 622 flow. Second operand 21 states and 5672 transitions. [2022-11-16 12:05:49,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 304 transitions, 802 flow [2022-11-16 12:05:49,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 304 transitions, 782 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:05:49,659 INFO L231 Difference]: Finished difference. Result has 313 places, 293 transitions, 732 flow [2022-11-16 12:05:49,659 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=732, PETRI_PLACES=313, PETRI_TRANSITIONS=293} [2022-11-16 12:05:49,661 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 34 predicate places. [2022-11-16 12:05:49,661 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 293 transitions, 732 flow [2022-11-16 12:05:49,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 270.22222222222223) internal successors, (4864), 18 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states 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 12:05:49,664 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:05:49,665 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:49,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:05:49,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:05:49,872 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:05:49,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:49,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1805801512, now seen corresponding path program 2 times [2022-11-16 12:05:49,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:49,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590691875] [2022-11-16 12:05:49,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:49,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:50,469 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:50,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:50,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590691875] [2022-11-16 12:05:50,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590691875] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:05:50,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319046010] [2022-11-16 12:05:50,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:05:50,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:05:50,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:05:50,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:05:50,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:05:50,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:05:50,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:05:50,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 12:05:50,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:50,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 12:05:50,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-16 12:05:50,760 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:05:50,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-16 12:05:50,808 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:05:50,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 12:05:50,856 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 12:05:50,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:05:50,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319046010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:50,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:05:50,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-16 12:05:50,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633682553] [2022-11-16 12:05:50,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:50,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:05:50,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:50,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:05:50,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:05:50,866 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 280 [2022-11-16 12:05:50,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 293 transitions, 732 flow. Second operand has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 0 states have call successors, (0), 0 states 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 12:05:50,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:05:50,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 280 [2022-11-16 12:05:50,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:05:51,693 INFO L130 PetriNetUnfolder]: 649/2140 cut-off events. [2022-11-16 12:05:51,693 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-16 12:05:51,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3652 conditions, 2140 events. 649/2140 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11526 event pairs, 648 based on Foata normal form. 0/1892 useless extension candidates. Maximal degree in co-relation 3640. Up to 1406 conditions per place. [2022-11-16 12:05:51,707 INFO L137 encePairwiseOnDemand]: 268/280 looper letters, 109 selfloop transitions, 10 changer transitions 0/291 dead transitions. [2022-11-16 12:05:51,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 291 transitions, 966 flow [2022-11-16 12:05:51,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:05:51,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:05:51,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1045 transitions. [2022-11-16 12:05:51,711 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6220238095238095 [2022-11-16 12:05:51,711 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1045 transitions. [2022-11-16 12:05:51,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1045 transitions. [2022-11-16 12:05:51,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:05:51,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1045 transitions. [2022-11-16 12:05:51,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.16666666666666) internal successors, (1045), 6 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:05:51,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:05:51,718 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:05:51,719 INFO L175 Difference]: Start difference. First operand has 313 places, 293 transitions, 732 flow. Second operand 6 states and 1045 transitions. [2022-11-16 12:05:51,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 291 transitions, 966 flow [2022-11-16 12:05:51,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 291 transitions, 942 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 12:05:51,728 INFO L231 Difference]: Finished difference. Result has 310 places, 291 transitions, 724 flow [2022-11-16 12:05:51,728 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=724, PETRI_PLACES=310, PETRI_TRANSITIONS=291} [2022-11-16 12:05:51,729 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 31 predicate places. [2022-11-16 12:05:51,729 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 291 transitions, 724 flow [2022-11-16 12:05:51,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 0 states have call successors, (0), 0 states 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 12:05:51,730 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:05:51,730 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:51,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:05:51,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:05:51,936 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:05:51,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:51,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1682803570, now seen corresponding path program 1 times [2022-11-16 12:05:51,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:51,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034954162] [2022-11-16 12:05:51,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:51,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:52,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:52,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034954162] [2022-11-16 12:05:52,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034954162] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:05:52,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185422238] [2022-11-16 12:05:52,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:52,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:05:52,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:05:52,512 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:05:52,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:05:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:52,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 12:05:52,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:05:52,846 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:52,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:05:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:05:53,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185422238] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:05:53,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:05:53,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-16 12:05:53,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937215253] [2022-11-16 12:05:53,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:05:53,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 12:05:53,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:53,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 12:05:53,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:05:53,156 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 280 [2022-11-16 12:05:53,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 291 transitions, 724 flow. Second operand has 23 states, 23 states have (on average 270.39130434782606) internal successors, (6219), 23 states have internal predecessors, (6219), 0 states have call successors, (0), 0 states 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 12:05:53,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:05:53,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 280 [2022-11-16 12:05:53,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:05:53,696 INFO L130 PetriNetUnfolder]: 1/317 cut-off events. [2022-11-16 12:05:53,697 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-11-16 12:05:53,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 317 events. 1/317 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 3/305 useless extension candidates. Maximal degree in co-relation 488. Up to 16 conditions per place. [2022-11-16 12:05:53,698 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 25 selfloop transitions, 30 changer transitions 0/317 dead transitions. [2022-11-16 12:05:53,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 317 transitions, 974 flow [2022-11-16 12:05:53,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 12:05:53,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 12:05:53,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8098 transitions. [2022-11-16 12:05:53,716 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964047619047619 [2022-11-16 12:05:53,716 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 8098 transitions. [2022-11-16 12:05:53,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 8098 transitions. [2022-11-16 12:05:53,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:05:53,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 8098 transitions. [2022-11-16 12:05:53,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 269.93333333333334) internal successors, (8098), 30 states have internal predecessors, (8098), 0 states have call successors, (0), 0 states 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 12:05:53,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 280.0) internal successors, (8680), 31 states have internal predecessors, (8680), 0 states have call successors, (0), 0 states 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 12:05:53,763 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 280.0) internal successors, (8680), 31 states have internal predecessors, (8680), 0 states have call successors, (0), 0 states 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 12:05:53,763 INFO L175 Difference]: Start difference. First operand has 310 places, 291 transitions, 724 flow. Second operand 30 states and 8098 transitions. [2022-11-16 12:05:53,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 317 transitions, 974 flow [2022-11-16 12:05:53,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 317 transitions, 954 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:05:53,773 INFO L231 Difference]: Finished difference. Result has 338 places, 301 transitions, 856 flow [2022-11-16 12:05:53,774 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=856, PETRI_PLACES=338, PETRI_TRANSITIONS=301} [2022-11-16 12:05:53,774 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 59 predicate places. [2022-11-16 12:05:53,775 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 301 transitions, 856 flow [2022-11-16 12:05:53,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 270.39130434782606) internal successors, (6219), 23 states have internal predecessors, (6219), 0 states have call successors, (0), 0 states 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 12:05:53,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:05:53,777 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:53,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:05:53,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33160af5-be88-45f0-9fe5-e7528a3a7e93/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:05:53,984 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:05:53,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:53,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1005405797, now seen corresponding path program 2 times [2022-11-16 12:05:53,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:53,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753061888] [2022-11-16 12:05:53,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:53,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:54,619 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:05:54,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:54,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753061888] [2022-11-16 12:05:54,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753061888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:54,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:54,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:05:54,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985115687] [2022-11-16 12:05:54,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:54,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:05:54,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:54,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:05:54,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:05:54,624 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 280 [2022-11-16 12:05:54,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 301 transitions, 856 flow. Second operand has 6 states, 6 states have (on average 158.66666666666666) internal successors, (952), 6 states have internal predecessors, (952), 0 states have call successors, (0), 0 states 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 12:05:54,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:05:54,626 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 280 [2022-11-16 12:05:54,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:05:55,720 INFO L130 PetriNetUnfolder]: 778/2472 cut-off events. [2022-11-16 12:05:55,720 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-11-16 12:05:55,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4308 conditions, 2472 events. 778/2472 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13752 event pairs, 777 based on Foata normal form. 0/2200 useless extension candidates. Maximal degree in co-relation 4292. Up to 1667 conditions per place. [2022-11-16 12:05:55,740 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 112 selfloop transitions, 5 changer transitions 0/300 dead transitions. [2022-11-16 12:05:55,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 300 transitions, 1088 flow [2022-11-16 12:05:55,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:05:55,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:05:55,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1048 transitions. [2022-11-16 12:05:55,747 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6238095238095238 [2022-11-16 12:05:55,747 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1048 transitions. [2022-11-16 12:05:55,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1048 transitions. [2022-11-16 12:05:55,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:05:55,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1048 transitions. [2022-11-16 12:05:55,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states 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 12:05:55,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:05:55,758 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:05:55,758 INFO L175 Difference]: Start difference. First operand has 338 places, 301 transitions, 856 flow. Second operand 6 states and 1048 transitions. [2022-11-16 12:05:55,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 300 transitions, 1088 flow [2022-11-16 12:05:55,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 300 transitions, 1042 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-16 12:05:55,772 INFO L231 Difference]: Finished difference. Result has 324 places, 300 transitions, 818 flow [2022-11-16 12:05:55,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=818, PETRI_PLACES=324, PETRI_TRANSITIONS=300} [2022-11-16 12:05:55,777 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 45 predicate places. [2022-11-16 12:05:55,777 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 300 transitions, 818 flow [2022-11-16 12:05:55,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 158.66666666666666) internal successors, (952), 6 states have internal predecessors, (952), 0 states have call successors, (0), 0 states 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 12:05:55,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:05:55,779 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:55,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:05:55,779 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:05:55,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:55,780 INFO L85 PathProgramCache]: Analyzing trace with hash -325553121, now seen corresponding path program 1 times [2022-11-16 12:05:55,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:55,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089862212] [2022-11-16 12:05:55,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:55,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:56,829 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:05:56,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:56,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089862212] [2022-11-16 12:05:56,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089862212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:56,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:56,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:05:56,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990050992] [2022-11-16 12:05:56,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:56,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:05:56,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:56,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:05:56,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:05:56,833 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 280 [2022-11-16 12:05:56,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 300 transitions, 818 flow. Second operand has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 12:05:56,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:05:56,835 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 280 [2022-11-16 12:05:56,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:05:58,781 INFO L130 PetriNetUnfolder]: 1388/4190 cut-off events. [2022-11-16 12:05:58,782 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-16 12:05:58,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7281 conditions, 4190 events. 1388/4190 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28895 event pairs, 110 based on Foata normal form. 0/3748 useless extension candidates. Maximal degree in co-relation 7264. Up to 1834 conditions per place. [2022-11-16 12:05:58,821 INFO L137 encePairwiseOnDemand]: 252/280 looper letters, 205 selfloop transitions, 74 changer transitions 0/464 dead transitions. [2022-11-16 12:05:58,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 464 transitions, 1704 flow [2022-11-16 12:05:58,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:05:58,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:05:58,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1223 transitions. [2022-11-16 12:05:58,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7279761904761904 [2022-11-16 12:05:58,827 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1223 transitions. [2022-11-16 12:05:58,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1223 transitions. [2022-11-16 12:05:58,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:05:58,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1223 transitions. [2022-11-16 12:05:58,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.83333333333334) internal successors, (1223), 6 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 12:05:58,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:05:58,838 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:05:58,838 INFO L175 Difference]: Start difference. First operand has 324 places, 300 transitions, 818 flow. Second operand 6 states and 1223 transitions. [2022-11-16 12:05:58,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 464 transitions, 1704 flow [2022-11-16 12:05:58,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 464 transitions, 1694 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:05:58,851 INFO L231 Difference]: Finished difference. Result has 328 places, 367 transitions, 1280 flow [2022-11-16 12:05:58,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1280, PETRI_PLACES=328, PETRI_TRANSITIONS=367} [2022-11-16 12:05:58,853 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 49 predicate places. [2022-11-16 12:05:58,853 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 367 transitions, 1280 flow [2022-11-16 12:05:58,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 12:05:58,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:05:58,855 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:58,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:05:58,855 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:05:58,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:58,856 INFO L85 PathProgramCache]: Analyzing trace with hash 934174501, now seen corresponding path program 1 times [2022-11-16 12:05:58,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:58,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986589304] [2022-11-16 12:05:58,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:58,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:05:59,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:59,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986589304] [2022-11-16 12:05:59,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986589304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:59,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:59,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:05:59,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764348162] [2022-11-16 12:05:59,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:59,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:05:59,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:59,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:05:59,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:05:59,847 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 280 [2022-11-16 12:05:59,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 367 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states 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 12:05:59,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:05:59,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 280 [2022-11-16 12:05:59,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:01,359 INFO L130 PetriNetUnfolder]: 1207/4017 cut-off events. [2022-11-16 12:06:01,359 INFO L131 PetriNetUnfolder]: For 1394/1490 co-relation queries the response was YES. [2022-11-16 12:06:01,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8124 conditions, 4017 events. 1207/4017 cut-off events. For 1394/1490 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27465 event pairs, 807 based on Foata normal form. 0/3631 useless extension candidates. Maximal degree in co-relation 8103. Up to 2566 conditions per place. [2022-11-16 12:06:01,398 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 169 selfloop transitions, 5 changer transitions 0/366 dead transitions. [2022-11-16 12:06:01,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 366 transitions, 1626 flow [2022-11-16 12:06:01,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:06:01,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:06:01,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1091 transitions. [2022-11-16 12:06:01,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6494047619047619 [2022-11-16 12:06:01,403 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1091 transitions. [2022-11-16 12:06:01,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1091 transitions. [2022-11-16 12:06:01,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:01,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1091 transitions. [2022-11-16 12:06:01,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states 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 12:06:01,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:01,410 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:01,410 INFO L175 Difference]: Start difference. First operand has 328 places, 367 transitions, 1280 flow. Second operand 6 states and 1091 transitions. [2022-11-16 12:06:01,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 366 transitions, 1626 flow [2022-11-16 12:06:01,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 366 transitions, 1626 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:06:01,423 INFO L231 Difference]: Finished difference. Result has 332 places, 366 transitions, 1288 flow [2022-11-16 12:06:01,425 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=1278, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1288, PETRI_PLACES=332, PETRI_TRANSITIONS=366} [2022-11-16 12:06:01,426 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 53 predicate places. [2022-11-16 12:06:01,426 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 366 transitions, 1288 flow [2022-11-16 12:06:01,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states 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 12:06:01,427 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:01,427 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:01,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:06:01,427 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:06:01,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:01,428 INFO L85 PathProgramCache]: Analyzing trace with hash 450903764, now seen corresponding path program 1 times [2022-11-16 12:06:01,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:01,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778247143] [2022-11-16 12:06:01,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:01,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:06:02,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:02,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778247143] [2022-11-16 12:06:02,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778247143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:02,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:02,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:06:02,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565493037] [2022-11-16 12:06:02,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:02,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:06:02,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:02,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:06:02,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:06:02,128 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 280 [2022-11-16 12:06:02,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 366 transitions, 1288 flow. Second operand has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 12:06:02,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:02,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 280 [2022-11-16 12:06:02,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:03,324 INFO L130 PetriNetUnfolder]: 1207/4016 cut-off events. [2022-11-16 12:06:03,324 INFO L131 PetriNetUnfolder]: For 1394/1490 co-relation queries the response was YES. [2022-11-16 12:06:03,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8130 conditions, 4016 events. 1207/4016 cut-off events. For 1394/1490 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27444 event pairs, 807 based on Foata normal form. 0/3631 useless extension candidates. Maximal degree in co-relation 8108. Up to 2568 conditions per place. [2022-11-16 12:06:03,375 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 170 selfloop transitions, 5 changer transitions 0/365 dead transitions. [2022-11-16 12:06:03,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 365 transitions, 1636 flow [2022-11-16 12:06:03,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:06:03,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:06:03,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1080 transitions. [2022-11-16 12:06:03,379 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2022-11-16 12:06:03,379 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1080 transitions. [2022-11-16 12:06:03,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1080 transitions. [2022-11-16 12:06:03,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:03,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1080 transitions. [2022-11-16 12:06:03,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:06:03,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:03,389 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:03,389 INFO L175 Difference]: Start difference. First operand has 332 places, 366 transitions, 1288 flow. Second operand 6 states and 1080 transitions. [2022-11-16 12:06:03,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 365 transitions, 1636 flow [2022-11-16 12:06:03,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 365 transitions, 1626 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:06:03,403 INFO L231 Difference]: Finished difference. Result has 331 places, 365 transitions, 1286 flow [2022-11-16 12:06:03,404 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=1276, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1286, PETRI_PLACES=331, PETRI_TRANSITIONS=365} [2022-11-16 12:06:03,405 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 52 predicate places. [2022-11-16 12:06:03,405 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 365 transitions, 1286 flow [2022-11-16 12:06:03,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 12:06:03,406 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:03,406 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:03,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:06:03,406 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:06:03,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:03,407 INFO L85 PathProgramCache]: Analyzing trace with hash 518620431, now seen corresponding path program 1 times [2022-11-16 12:06:03,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:03,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794669662] [2022-11-16 12:06:03,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:03,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:04,120 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:06:04,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:04,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794669662] [2022-11-16 12:06:04,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794669662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:04,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:04,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:06:04,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234631651] [2022-11-16 12:06:04,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:04,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:06:04,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:04,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:06:04,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:06:04,126 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 280 [2022-11-16 12:06:04,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 365 transitions, 1286 flow. Second operand has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states 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 12:06:04,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:04,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 280 [2022-11-16 12:06:04,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:05,245 INFO L130 PetriNetUnfolder]: 1207/4015 cut-off events. [2022-11-16 12:06:05,245 INFO L131 PetriNetUnfolder]: For 1397/1493 co-relation queries the response was YES. [2022-11-16 12:06:05,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8128 conditions, 4015 events. 1207/4015 cut-off events. For 1397/1493 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27466 event pairs, 807 based on Foata normal form. 0/3631 useless extension candidates. Maximal degree in co-relation 8106. Up to 2567 conditions per place. [2022-11-16 12:06:05,284 INFO L137 encePairwiseOnDemand]: 274/280 looper letters, 169 selfloop transitions, 5 changer transitions 0/364 dead transitions. [2022-11-16 12:06:05,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 364 transitions, 1632 flow [2022-11-16 12:06:05,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:06:05,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:06:05,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1079 transitions. [2022-11-16 12:06:05,291 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6422619047619048 [2022-11-16 12:06:05,291 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1079 transitions. [2022-11-16 12:06:05,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1079 transitions. [2022-11-16 12:06:05,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:05,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1079 transitions. [2022-11-16 12:06:05,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states 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 12:06:05,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:05,303 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:05,304 INFO L175 Difference]: Start difference. First operand has 331 places, 365 transitions, 1286 flow. Second operand 6 states and 1079 transitions. [2022-11-16 12:06:05,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 364 transitions, 1632 flow [2022-11-16 12:06:05,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 364 transitions, 1622 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:06:05,320 INFO L231 Difference]: Finished difference. Result has 330 places, 364 transitions, 1284 flow [2022-11-16 12:06:05,321 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=1274, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1284, PETRI_PLACES=330, PETRI_TRANSITIONS=364} [2022-11-16 12:06:05,322 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 51 predicate places. [2022-11-16 12:06:05,322 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 364 transitions, 1284 flow [2022-11-16 12:06:05,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states 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 12:06:05,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:05,323 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:05,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:06:05,324 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:06:05,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:05,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1341513517, now seen corresponding path program 1 times [2022-11-16 12:06:05,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:05,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941848778] [2022-11-16 12:06:05,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:05,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:06:06,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:06,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941848778] [2022-11-16 12:06:06,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941848778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:06,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:06,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:06:06,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169096560] [2022-11-16 12:06:06,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:06,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:06:06,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:06,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:06:06,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:06:06,149 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 280 [2022-11-16 12:06:06,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 364 transitions, 1284 flow. Second operand has 6 states, 6 states have (on average 173.83333333333334) internal successors, (1043), 6 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 12:06:06,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:06,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 280 [2022-11-16 12:06:06,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:08,138 INFO L130 PetriNetUnfolder]: 1524/4641 cut-off events. [2022-11-16 12:06:08,138 INFO L131 PetriNetUnfolder]: For 1532/1644 co-relation queries the response was YES. [2022-11-16 12:06:08,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9545 conditions, 4641 events. 1524/4641 cut-off events. For 1532/1644 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 32064 event pairs, 654 based on Foata normal form. 16/4255 useless extension candidates. Maximal degree in co-relation 9523. Up to 2609 conditions per place. [2022-11-16 12:06:08,192 INFO L137 encePairwiseOnDemand]: 257/280 looper letters, 251 selfloop transitions, 130 changer transitions 0/573 dead transitions. [2022-11-16 12:06:08,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 573 transitions, 2840 flow [2022-11-16 12:06:08,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:06:08,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:06:08,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1238 transitions. [2022-11-16 12:06:08,195 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.736904761904762 [2022-11-16 12:06:08,195 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1238 transitions. [2022-11-16 12:06:08,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1238 transitions. [2022-11-16 12:06:08,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:08,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1238 transitions. [2022-11-16 12:06:08,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.33333333333334) internal successors, (1238), 6 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states 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 12:06:08,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:08,203 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:08,203 INFO L175 Difference]: Start difference. First operand has 330 places, 364 transitions, 1284 flow. Second operand 6 states and 1238 transitions. [2022-11-16 12:06:08,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 573 transitions, 2840 flow [2022-11-16 12:06:08,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 573 transitions, 2830 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:06:08,224 INFO L231 Difference]: Finished difference. Result has 335 places, 493 transitions, 2502 flow [2022-11-16 12:06:08,225 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=1274, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2502, PETRI_PLACES=335, PETRI_TRANSITIONS=493} [2022-11-16 12:06:08,226 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 56 predicate places. [2022-11-16 12:06:08,226 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 493 transitions, 2502 flow [2022-11-16 12:06:08,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.83333333333334) internal successors, (1043), 6 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states 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 12:06:08,227 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:08,227 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:08,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:06:08,228 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:06:08,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:08,229 INFO L85 PathProgramCache]: Analyzing trace with hash -289697930, now seen corresponding path program 1 times [2022-11-16 12:06:08,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:08,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27714232] [2022-11-16 12:06:08,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:08,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:09,096 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:06:09,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:09,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27714232] [2022-11-16 12:06:09,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27714232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:09,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:09,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:06:09,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609733561] [2022-11-16 12:06:09,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:09,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:06:09,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:09,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:06:09,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:06:09,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 280 [2022-11-16 12:06:09,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 493 transitions, 2502 flow. Second operand has 6 states, 6 states have (on average 174.83333333333334) internal successors, (1049), 6 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states 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 12:06:09,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:09,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 280 [2022-11-16 12:06:09,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:11,576 INFO L130 PetriNetUnfolder]: 1637/5418 cut-off events. [2022-11-16 12:06:11,577 INFO L131 PetriNetUnfolder]: For 3912/4153 co-relation queries the response was YES. [2022-11-16 12:06:11,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12546 conditions, 5418 events. 1637/5418 cut-off events. For 3912/4153 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40657 event pairs, 523 based on Foata normal form. 0/5057 useless extension candidates. Maximal degree in co-relation 12520. Up to 2869 conditions per place. [2022-11-16 12:06:11,630 INFO L137 encePairwiseOnDemand]: 258/280 looper letters, 375 selfloop transitions, 129 changer transitions 5/701 dead transitions. [2022-11-16 12:06:11,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 701 transitions, 4558 flow [2022-11-16 12:06:11,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:06:11,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:06:11,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1237 transitions. [2022-11-16 12:06:11,635 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7363095238095239 [2022-11-16 12:06:11,636 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1237 transitions. [2022-11-16 12:06:11,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1237 transitions. [2022-11-16 12:06:11,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:11,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1237 transitions. [2022-11-16 12:06:11,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.16666666666666) internal successors, (1237), 6 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states 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 12:06:11,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:11,643 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:11,643 INFO L175 Difference]: Start difference. First operand has 335 places, 493 transitions, 2502 flow. Second operand 6 states and 1237 transitions. [2022-11-16 12:06:11,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 701 transitions, 4558 flow [2022-11-16 12:06:11,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 701 transitions, 4558 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:06:11,674 INFO L231 Difference]: Finished difference. Result has 345 places, 620 transitions, 3968 flow [2022-11-16 12:06:11,675 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=2502, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3968, PETRI_PLACES=345, PETRI_TRANSITIONS=620} [2022-11-16 12:06:11,676 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 66 predicate places. [2022-11-16 12:06:11,676 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 620 transitions, 3968 flow [2022-11-16 12:06:11,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.83333333333334) internal successors, (1049), 6 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states 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 12:06:11,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:11,677 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:11,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:06:11,677 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:06:11,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:11,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1844961197, now seen corresponding path program 1 times [2022-11-16 12:06:11,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:11,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681795719] [2022-11-16 12:06:11,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:11,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:12,600 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:06:12,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:12,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681795719] [2022-11-16 12:06:12,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681795719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:12,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:12,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:06:12,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662822373] [2022-11-16 12:06:12,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:12,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:06:12,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:12,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:06:12,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:06:12,606 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 280 [2022-11-16 12:06:12,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 620 transitions, 3968 flow. Second operand has 6 states, 6 states have (on average 170.16666666666666) internal successors, (1021), 6 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states 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 12:06:12,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:12,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 280 [2022-11-16 12:06:12,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:14,922 INFO L130 PetriNetUnfolder]: 1747/5576 cut-off events. [2022-11-16 12:06:14,923 INFO L131 PetriNetUnfolder]: For 5717/5745 co-relation queries the response was YES. [2022-11-16 12:06:14,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14913 conditions, 5576 events. 1747/5576 cut-off events. For 5717/5745 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 40881 event pairs, 657 based on Foata normal form. 0/5272 useless extension candidates. Maximal degree in co-relation 14882. Up to 3519 conditions per place. [2022-11-16 12:06:14,988 INFO L137 encePairwiseOnDemand]: 261/280 looper letters, 445 selfloop transitions, 84 changer transitions 0/718 dead transitions. [2022-11-16 12:06:14,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 718 transitions, 5540 flow [2022-11-16 12:06:14,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:06:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:06:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1151 transitions. [2022-11-16 12:06:14,992 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6851190476190476 [2022-11-16 12:06:14,992 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1151 transitions. [2022-11-16 12:06:14,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1151 transitions. [2022-11-16 12:06:14,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:14,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1151 transitions. [2022-11-16 12:06:14,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.83333333333334) internal successors, (1151), 6 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states 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 12:06:14,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:14,999 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 280.0) internal successors, (1960), 7 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states 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 12:06:15,000 INFO L175 Difference]: Start difference. First operand has 345 places, 620 transitions, 3968 flow. Second operand 6 states and 1151 transitions. [2022-11-16 12:06:15,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 718 transitions, 5540 flow [2022-11-16 12:06:15,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 718 transitions, 5286 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-16 12:06:15,049 INFO L231 Difference]: Finished difference. Result has 354 places, 691 transitions, 4504 flow [2022-11-16 12:06:15,050 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=3720, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4504, PETRI_PLACES=354, PETRI_TRANSITIONS=691} [2022-11-16 12:06:15,050 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 75 predicate places. [2022-11-16 12:06:15,051 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 691 transitions, 4504 flow [2022-11-16 12:06:15,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.16666666666666) internal successors, (1021), 6 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states 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 12:06:15,052 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:15,052 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:15,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:06:15,052 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:06:15,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:15,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1687157928, now seen corresponding path program 1 times [2022-11-16 12:06:15,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:15,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770363945] [2022-11-16 12:06:15,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:15,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:17,141 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:06:17,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:17,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770363945] [2022-11-16 12:06:17,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770363945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:17,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:17,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 12:06:17,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788887784] [2022-11-16 12:06:17,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:17,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 12:06:17,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:17,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 12:06:17,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:06:17,146 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 280 [2022-11-16 12:06:17,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 691 transitions, 4504 flow. Second operand has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states 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 12:06:17,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:17,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 280 [2022-11-16 12:06:17,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:21,767 INFO L130 PetriNetUnfolder]: 2387/6866 cut-off events. [2022-11-16 12:06:21,767 INFO L131 PetriNetUnfolder]: For 8611/8688 co-relation queries the response was YES. [2022-11-16 12:06:21,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20539 conditions, 6866 events. 2387/6866 cut-off events. For 8611/8688 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 51931 event pairs, 393 based on Foata normal form. 79/6634 useless extension candidates. Maximal degree in co-relation 20503. Up to 2770 conditions per place. [2022-11-16 12:06:21,847 INFO L137 encePairwiseOnDemand]: 253/280 looper letters, 688 selfloop transitions, 179 changer transitions 6/1036 dead transitions. [2022-11-16 12:06:21,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1036 transitions, 8170 flow [2022-11-16 12:06:21,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:06:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 12:06:21,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3656 transitions. [2022-11-16 12:06:21,854 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.544047619047619 [2022-11-16 12:06:21,855 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3656 transitions. [2022-11-16 12:06:21,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3656 transitions. [2022-11-16 12:06:21,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:21,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3656 transitions. [2022-11-16 12:06:21,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 152.33333333333334) internal successors, (3656), 24 states have internal predecessors, (3656), 0 states have call successors, (0), 0 states 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 12:06:21,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 280.0) internal successors, (7000), 25 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states 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 12:06:21,878 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 280.0) internal successors, (7000), 25 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states 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 12:06:21,878 INFO L175 Difference]: Start difference. First operand has 354 places, 691 transitions, 4504 flow. Second operand 24 states and 3656 transitions. [2022-11-16 12:06:21,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 1036 transitions, 8170 flow [2022-11-16 12:06:21,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 1036 transitions, 8098 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-16 12:06:21,989 INFO L231 Difference]: Finished difference. Result has 386 places, 747 transitions, 5496 flow [2022-11-16 12:06:21,990 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=4450, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5496, PETRI_PLACES=386, PETRI_TRANSITIONS=747} [2022-11-16 12:06:21,990 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 107 predicate places. [2022-11-16 12:06:21,991 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 747 transitions, 5496 flow [2022-11-16 12:06:21,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states 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 12:06:21,992 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:21,993 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:21,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:06:21,993 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:06:21,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:21,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1567649258, now seen corresponding path program 2 times [2022-11-16 12:06:21,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:21,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584012717] [2022-11-16 12:06:21,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:21,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:24,081 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:06:24,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:24,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584012717] [2022-11-16 12:06:24,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584012717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:24,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:24,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 12:06:24,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3941567] [2022-11-16 12:06:24,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:24,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 12:06:24,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:24,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 12:06:24,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:06:24,085 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 280 [2022-11-16 12:06:24,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 747 transitions, 5496 flow. Second operand has 16 states, 16 states have (on average 133.375) internal successors, (2134), 16 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states 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 12:06:24,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:24,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 280 [2022-11-16 12:06:24,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:30,313 INFO L130 PetriNetUnfolder]: 3660/10641 cut-off events. [2022-11-16 12:06:30,313 INFO L131 PetriNetUnfolder]: For 18133/18244 co-relation queries the response was YES. [2022-11-16 12:06:30,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33222 conditions, 10641 events. 3660/10641 cut-off events. For 18133/18244 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 92098 event pairs, 980 based on Foata normal form. 111/10289 useless extension candidates. Maximal degree in co-relation 33176. Up to 3371 conditions per place. [2022-11-16 12:06:30,443 INFO L137 encePairwiseOnDemand]: 239/280 looper letters, 859 selfloop transitions, 287 changer transitions 6/1309 dead transitions. [2022-11-16 12:06:30,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 1309 transitions, 11505 flow [2022-11-16 12:06:30,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:06:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 12:06:30,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2954 transitions. [2022-11-16 12:06:30,451 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5552631578947368 [2022-11-16 12:06:30,451 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2954 transitions. [2022-11-16 12:06:30,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2954 transitions. [2022-11-16 12:06:30,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:30,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2954 transitions. [2022-11-16 12:06:30,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 155.47368421052633) internal successors, (2954), 19 states have internal predecessors, (2954), 0 states have call successors, (0), 0 states 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 12:06:30,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 280.0) internal successors, (5600), 20 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states 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 12:06:30,474 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 280.0) internal successors, (5600), 20 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states 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 12:06:30,475 INFO L175 Difference]: Start difference. First operand has 386 places, 747 transitions, 5496 flow. Second operand 19 states and 2954 transitions. [2022-11-16 12:06:30,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 1309 transitions, 11505 flow [2022-11-16 12:06:30,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 1309 transitions, 11446 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-16 12:06:30,718 INFO L231 Difference]: Finished difference. Result has 407 places, 864 transitions, 7913 flow [2022-11-16 12:06:30,720 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=5462, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=747, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=482, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7913, PETRI_PLACES=407, PETRI_TRANSITIONS=864} [2022-11-16 12:06:30,720 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 128 predicate places. [2022-11-16 12:06:30,721 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 864 transitions, 7913 flow [2022-11-16 12:06:30,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 133.375) internal successors, (2134), 16 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states 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 12:06:30,722 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:30,722 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:30,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:06:30,723 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:06:30,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:30,723 INFO L85 PathProgramCache]: Analyzing trace with hash -825766224, now seen corresponding path program 3 times [2022-11-16 12:06:30,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:30,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464660640] [2022-11-16 12:06:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:30,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:32,651 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:06:32,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:32,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464660640] [2022-11-16 12:06:32,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464660640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:32,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:32,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 12:06:32,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703035119] [2022-11-16 12:06:32,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:32,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 12:06:32,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:32,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 12:06:32,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:06:32,656 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 280 [2022-11-16 12:06:32,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 864 transitions, 7913 flow. Second operand has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states 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 12:06:32,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:32,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 280 [2022-11-16 12:06:32,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:40,515 INFO L130 PetriNetUnfolder]: 4975/14490 cut-off events. [2022-11-16 12:06:40,515 INFO L131 PetriNetUnfolder]: For 33198/33330 co-relation queries the response was YES. [2022-11-16 12:06:40,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47145 conditions, 14490 events. 4975/14490 cut-off events. For 33198/33330 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 135700 event pairs, 1557 based on Foata normal form. 129/14011 useless extension candidates. Maximal degree in co-relation 47090. Up to 4754 conditions per place. [2022-11-16 12:06:40,694 INFO L137 encePairwiseOnDemand]: 242/280 looper letters, 966 selfloop transitions, 328 changer transitions 6/1463 dead transitions. [2022-11-16 12:06:40,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 1463 transitions, 14894 flow [2022-11-16 12:06:40,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:06:40,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:06:40,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3229 transitions. [2022-11-16 12:06:40,702 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5766071428571429 [2022-11-16 12:06:40,702 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3229 transitions. [2022-11-16 12:06:40,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3229 transitions. [2022-11-16 12:06:40,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:40,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3229 transitions. [2022-11-16 12:06:40,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 161.45) internal successors, (3229), 20 states have internal predecessors, (3229), 0 states have call successors, (0), 0 states 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 12:06:40,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 280.0) internal successors, (5880), 21 states have internal predecessors, (5880), 0 states have call successors, (0), 0 states 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 12:06:40,723 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 280.0) internal successors, (5880), 21 states have internal predecessors, (5880), 0 states have call successors, (0), 0 states 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 12:06:40,724 INFO L175 Difference]: Start difference. First operand has 407 places, 864 transitions, 7913 flow. Second operand 20 states and 3229 transitions. [2022-11-16 12:06:40,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 1463 transitions, 14894 flow [2022-11-16 12:06:40,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1463 transitions, 14761 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-11-16 12:06:40,983 INFO L231 Difference]: Finished difference. Result has 430 places, 993 transitions, 10986 flow [2022-11-16 12:06:40,984 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=7794, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=864, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10986, PETRI_PLACES=430, PETRI_TRANSITIONS=993} [2022-11-16 12:06:40,985 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 151 predicate places. [2022-11-16 12:06:40,985 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 993 transitions, 10986 flow [2022-11-16 12:06:40,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states 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 12:06:40,986 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:40,987 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:40,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:06:40,987 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:06:40,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:40,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1500151882, now seen corresponding path program 4 times [2022-11-16 12:06:40,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:40,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851014564] [2022-11-16 12:06:40,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:40,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:06:43,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:43,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851014564] [2022-11-16 12:06:43,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851014564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:43,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:43,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 12:06:43,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949506725] [2022-11-16 12:06:43,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:43,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 12:06:43,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:43,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 12:06:43,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:06:43,190 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 280 [2022-11-16 12:06:43,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 993 transitions, 10986 flow. Second operand has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states 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 12:06:43,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:43,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 280 [2022-11-16 12:06:43,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:06:54,401 INFO L130 PetriNetUnfolder]: 6423/18547 cut-off events. [2022-11-16 12:06:54,401 INFO L131 PetriNetUnfolder]: For 55731/55968 co-relation queries the response was YES. [2022-11-16 12:06:54,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63340 conditions, 18547 events. 6423/18547 cut-off events. For 55731/55968 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 183777 event pairs, 1481 based on Foata normal form. 153/17934 useless extension candidates. Maximal degree in co-relation 63272. Up to 7109 conditions per place. [2022-11-16 12:06:54,744 INFO L137 encePairwiseOnDemand]: 243/280 looper letters, 1082 selfloop transitions, 390 changer transitions 5/1640 dead transitions. [2022-11-16 12:06:54,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 1640 transitions, 19549 flow [2022-11-16 12:06:54,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:06:54,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:06:54,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3358 transitions. [2022-11-16 12:06:54,751 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5710884353741497 [2022-11-16 12:06:54,751 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3358 transitions. [2022-11-16 12:06:54,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3358 transitions. [2022-11-16 12:06:54,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:06:54,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3358 transitions. [2022-11-16 12:06:54,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 159.9047619047619) internal successors, (3358), 21 states have internal predecessors, (3358), 0 states have call successors, (0), 0 states 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 12:06:54,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 280.0) internal successors, (6160), 22 states have internal predecessors, (6160), 0 states have call successors, (0), 0 states 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 12:06:54,771 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 280.0) internal successors, (6160), 22 states have internal predecessors, (6160), 0 states have call successors, (0), 0 states 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 12:06:54,771 INFO L175 Difference]: Start difference. First operand has 430 places, 993 transitions, 10986 flow. Second operand 21 states and 3358 transitions. [2022-11-16 12:06:54,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 1640 transitions, 19549 flow [2022-11-16 12:06:55,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1640 transitions, 19395 flow, removed 26 selfloop flow, removed 6 redundant places. [2022-11-16 12:06:55,217 INFO L231 Difference]: Finished difference. Result has 458 places, 1152 transitions, 14962 flow [2022-11-16 12:06:55,218 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=10854, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=14962, PETRI_PLACES=458, PETRI_TRANSITIONS=1152} [2022-11-16 12:06:55,219 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 179 predicate places. [2022-11-16 12:06:55,219 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 1152 transitions, 14962 flow [2022-11-16 12:06:55,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states 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 12:06:55,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:06:55,220 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:55,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:06:55,221 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:06:55,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:55,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1323830916, now seen corresponding path program 5 times [2022-11-16 12:06:55,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:55,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954283183] [2022-11-16 12:06:55,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:55,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:57,368 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:06:57,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:57,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954283183] [2022-11-16 12:06:57,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954283183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:57,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:57,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 12:06:57,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134603282] [2022-11-16 12:06:57,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:57,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 12:06:57,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:57,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 12:06:57,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:06:57,373 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 280 [2022-11-16 12:06:57,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 1152 transitions, 14962 flow. Second operand has 16 states, 16 states have (on average 133.375) internal successors, (2134), 16 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states 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 12:06:57,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:06:57,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 280 [2022-11-16 12:06:57,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:11,441 INFO L130 PetriNetUnfolder]: 7944/22823 cut-off events. [2022-11-16 12:07:11,441 INFO L131 PetriNetUnfolder]: For 88711/89046 co-relation queries the response was YES. [2022-11-16 12:07:11,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81458 conditions, 22823 events. 7944/22823 cut-off events. For 88711/89046 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 235803 event pairs, 1851 based on Foata normal form. 184/22065 useless extension candidates. Maximal degree in co-relation 81376. Up to 9486 conditions per place. [2022-11-16 12:07:11,854 INFO L137 encePairwiseOnDemand]: 241/280 looper letters, 1205 selfloop transitions, 441 changer transitions 4/1807 dead transitions. [2022-11-16 12:07:11,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 1807 transitions, 24339 flow [2022-11-16 12:07:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:07:11,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 12:07:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3613 transitions. [2022-11-16 12:07:11,864 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5376488095238096 [2022-11-16 12:07:11,864 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3613 transitions. [2022-11-16 12:07:11,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3613 transitions. [2022-11-16 12:07:11,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:11,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3613 transitions. [2022-11-16 12:07:11,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 150.54166666666666) internal successors, (3613), 24 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states 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 12:07:11,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 280.0) internal successors, (7000), 25 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states 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 12:07:11,888 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 280.0) internal successors, (7000), 25 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states 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 12:07:11,888 INFO L175 Difference]: Start difference. First operand has 458 places, 1152 transitions, 14962 flow. Second operand 24 states and 3613 transitions. [2022-11-16 12:07:11,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 1807 transitions, 24339 flow [2022-11-16 12:07:12,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 1807 transitions, 24020 flow, removed 120 selfloop flow, removed 5 redundant places. [2022-11-16 12:07:12,742 INFO L231 Difference]: Finished difference. Result has 492 places, 1307 transitions, 19230 flow [2022-11-16 12:07:12,743 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=14715, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=738, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=19230, PETRI_PLACES=492, PETRI_TRANSITIONS=1307} [2022-11-16 12:07:12,744 INFO L288 CegarLoopForPetriNet]: 279 programPoint places, 213 predicate places. [2022-11-16 12:07:12,744 INFO L495 AbstractCegarLoop]: Abstraction has has 492 places, 1307 transitions, 19230 flow [2022-11-16 12:07:12,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 133.375) internal successors, (2134), 16 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states 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 12:07:12,745 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:12,745 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:12,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:07:12,746 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-16 12:07:12,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:12,746 INFO L85 PathProgramCache]: Analyzing trace with hash 224435444, now seen corresponding path program 6 times [2022-11-16 12:07:12,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:12,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293341008] [2022-11-16 12:07:12,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:12,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:07:14,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:14,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293341008] [2022-11-16 12:07:14,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293341008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:14,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:14,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 12:07:14,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107083343] [2022-11-16 12:07:14,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:14,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 12:07:14,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:14,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 12:07:14,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:07:14,688 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 280 [2022-11-16 12:07:14,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 1307 transitions, 19230 flow. Second operand has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states 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 12:07:14,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:14,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 280 [2022-11-16 12:07:14,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:37,130 INFO L130 PetriNetUnfolder]: 12636/36356 cut-off events. [2022-11-16 12:07:37,130 INFO L131 PetriNetUnfolder]: For 157958/158401 co-relation queries the response was YES. [2022-11-16 12:07:37,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129424 conditions, 36356 events. 12636/36356 cut-off events. For 157958/158401 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 412711 event pairs, 3632 based on Foata normal form. 315/35174 useless extension candidates. Maximal degree in co-relation 129326. Up to 11468 conditions per place. [2022-11-16 12:07:37,896 INFO L137 encePairwiseOnDemand]: 245/280 looper letters, 1005 selfloop transitions, 733 changer transitions 3/1904 dead transitions. [2022-11-16 12:07:37,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 1904 transitions, 30203 flow [2022-11-16 12:07:37,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:07:37,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:07:37,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2807 transitions. [2022-11-16 12:07:37,902 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5569444444444445 [2022-11-16 12:07:37,902 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2807 transitions. [2022-11-16 12:07:37,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2807 transitions. [2022-11-16 12:07:37,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:37,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2807 transitions. [2022-11-16 12:07:37,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 155.94444444444446) internal successors, (2807), 18 states have internal predecessors, (2807), 0 states have call successors, (0), 0 states 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 12:07:37,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 280.0) internal successors, (5320), 19 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states 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 12:07:37,916 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 280.0) internal successors, (5320), 19 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states 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 12:07:37,917 INFO L175 Difference]: Start difference. First operand has 492 places, 1307 transitions, 19230 flow. Second operand 18 states and 2807 transitions. [2022-11-16 12:07:37,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 1904 transitions, 30203 flow