./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro --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 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:34:04,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:34:04,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:34:04,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:34:04,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:34:04,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:34:04,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:34:04,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:34:04,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:34:04,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:34:04,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:34:04,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:34:04,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:34:04,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:34:04,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:34:04,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:34:04,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:34:04,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:34:04,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:34:04,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:34:04,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:34:04,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:34:04,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:34:04,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:34:04,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:34:04,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:34:04,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:34:04,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:34:04,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:34:04,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:34:04,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:34:04,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:34:04,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:34:04,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:34:04,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:34:04,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:34:04,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:34:04,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:34:04,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:34:04,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:34:04,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:34:04,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:34:04,369 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:34:04,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:34:04,370 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:34:04,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:34:04,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:34:04,371 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:34:04,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:34:04,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:34:04,372 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:34:04,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:34:04,373 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:34:04,373 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:34:04,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:34:04,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:34:04,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:34:04,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:34:04,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:34:04,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:34:04,374 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:34:04,375 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:34:04,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:34:04,375 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:34:04,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:34:04,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:34:04,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:34:04,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:34:04,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:34:04,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:34:04,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:34:04,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:34:04,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:34:04,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:34:04,378 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:34:04,378 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:34:04,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:34:04,379 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_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 [2022-11-18 19:34:04,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:34:04,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:34:04,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:34:04,748 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:34:04,749 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:34:04,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-18 19:34:04,815 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/data/a47e9c244/b8f787351814463cbb3297036cc792ad/FLAG2c28075b2 [2022-11-18 19:34:05,287 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:34:05,288 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-18 19:34:05,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/data/a47e9c244/b8f787351814463cbb3297036cc792ad/FLAG2c28075b2 [2022-11-18 19:34:05,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/data/a47e9c244/b8f787351814463cbb3297036cc792ad [2022-11-18 19:34:05,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:34:05,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:34:05,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:34:05,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:34:05,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:34:05,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:34:05" (1/1) ... [2022-11-18 19:34:05,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e5681d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:05, skipping insertion in model container [2022-11-18 19:34:05,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:34:05" (1/1) ... [2022-11-18 19:34:05,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:34:05,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:34:06,001 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-18 19:34:06,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:34:06,032 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:34:06,102 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-18 19:34:06,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:34:06,132 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:34:06,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06 WrapperNode [2022-11-18 19:34:06,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:34:06,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:34:06,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:34:06,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:34:06,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (1/1) ... [2022-11-18 19:34:06,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (1/1) ... [2022-11-18 19:34:06,212 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 348 [2022-11-18 19:34:06,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:34:06,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:34:06,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:34:06,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:34:06,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (1/1) ... [2022-11-18 19:34:06,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (1/1) ... [2022-11-18 19:34:06,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (1/1) ... [2022-11-18 19:34:06,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (1/1) ... [2022-11-18 19:34:06,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (1/1) ... [2022-11-18 19:34:06,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (1/1) ... [2022-11-18 19:34:06,266 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (1/1) ... [2022-11-18 19:34:06,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (1/1) ... [2022-11-18 19:34:06,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:34:06,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:34:06,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:34:06,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:34:06,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (1/1) ... [2022-11-18 19:34:06,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:34:06,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:06,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:06,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f213818-9856-46fe-a332-39d9d10dcc21/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:34:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:34:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:34:06,390 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:34:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:34:06,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:34:06,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 19:34:06,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 19:34:06,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:34:06,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:34:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:34:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:34:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:34:06,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:34:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:34:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:34:06,395 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:34:06,586 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:34:06,588 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:34:07,610 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:34:07,626 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:34:07,627 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 19:34:07,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:34:07 BoogieIcfgContainer [2022-11-18 19:34:07,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:34:07,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:34:07,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:34:07,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:34:07,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:34:05" (1/3) ... [2022-11-18 19:34:07,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248a6fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:34:07, skipping insertion in model container [2022-11-18 19:34:07,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:06" (2/3) ... [2022-11-18 19:34:07,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248a6fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:34:07, skipping insertion in model container [2022-11-18 19:34:07,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:34:07" (3/3) ... [2022-11-18 19:34:07,644 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2022-11-18 19:34:07,653 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:34:07,665 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:34:07,665 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2022-11-18 19:34:07,665 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:34:07,895 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 19:34:07,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 621 places, 644 transitions, 1312 flow [2022-11-18 19:34:08,246 INFO L130 PetriNetUnfolder]: 33/641 cut-off events. [2022-11-18 19:34:08,247 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 19:34:08,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 641 events. 33/641 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1327 event pairs, 0 based on Foata normal form. 0/527 useless extension candidates. Maximal degree in co-relation 364. Up to 3 conditions per place. [2022-11-18 19:34:08,261 INFO L82 GeneralOperation]: Start removeDead. Operand has 621 places, 644 transitions, 1312 flow [2022-11-18 19:34:08,277 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 593 places, 613 transitions, 1244 flow [2022-11-18 19:34:08,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:34:08,305 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;@176f508a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:34:08,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 120 error locations. [2022-11-18 19:34:08,310 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-18 19:34:08,310 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:34:08,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:08,311 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] [2022-11-18 19:34:08,312 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:08,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:08,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1418968212, now seen corresponding path program 1 times [2022-11-18 19:34:08,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:08,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782312026] [2022-11-18 19:34:08,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:08,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:08,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:08,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782312026] [2022-11-18 19:34:08,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782312026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:08,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:08,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:08,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630294549] [2022-11-18 19:34:08,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:08,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:08,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:08,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:08,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:08,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 644 [2022-11-18 19:34:08,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 613 transitions, 1244 flow. Second operand has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:08,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:08,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 644 [2022-11-18 19:34:08,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:09,158 INFO L130 PetriNetUnfolder]: 61/1128 cut-off events. [2022-11-18 19:34:09,158 INFO L131 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2022-11-18 19:34:09,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 1128 events. 61/1128 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5120 event pairs, 21 based on Foata normal form. 47/946 useless extension candidates. Maximal degree in co-relation 668. Up to 67 conditions per place. [2022-11-18 19:34:09,179 INFO L137 encePairwiseOnDemand]: 627/644 looper letters, 24 selfloop transitions, 2 changer transitions 8/598 dead transitions. [2022-11-18 19:34:09,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 598 transitions, 1266 flow [2022-11-18 19:34:09,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:09,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1844 transitions. [2022-11-18 19:34:09,206 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544513457556936 [2022-11-18 19:34:09,207 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1844 transitions. [2022-11-18 19:34:09,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1844 transitions. [2022-11-18 19:34:09,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:09,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1844 transitions. [2022-11-18 19:34:09,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 614.6666666666666) internal successors, (1844), 3 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:09,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:09,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:09,239 INFO L175 Difference]: Start difference. First operand has 593 places, 613 transitions, 1244 flow. Second operand 3 states and 1844 transitions. [2022-11-18 19:34:09,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 598 transitions, 1266 flow [2022-11-18 19:34:09,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 598 transitions, 1254 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 19:34:09,263 INFO L231 Difference]: Finished difference. Result has 588 places, 590 transitions, 1190 flow [2022-11-18 19:34:09,265 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=596, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1190, PETRI_PLACES=588, PETRI_TRANSITIONS=590} [2022-11-18 19:34:09,273 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -5 predicate places. [2022-11-18 19:34:09,274 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 590 transitions, 1190 flow [2022-11-18 19:34:09,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:09,275 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:09,276 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] [2022-11-18 19:34:09,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:34:09,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:09,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:09,277 INFO L85 PathProgramCache]: Analyzing trace with hash 861718606, now seen corresponding path program 1 times [2022-11-18 19:34:09,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:09,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750530468] [2022-11-18 19:34:09,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:09,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:09,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:09,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750530468] [2022-11-18 19:34:09,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750530468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:09,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:09,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:09,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516347993] [2022-11-18 19:34:09,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:09,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:09,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:09,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:09,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:09,385 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 644 [2022-11-18 19:34:09,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 590 transitions, 1190 flow. Second operand has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:09,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:09,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 644 [2022-11-18 19:34:09,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:09,748 INFO L130 PetriNetUnfolder]: 90/1380 cut-off events. [2022-11-18 19:34:09,748 INFO L131 PetriNetUnfolder]: For 10/21 co-relation queries the response was YES. [2022-11-18 19:34:09,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1505 conditions, 1380 events. 90/1380 cut-off events. For 10/21 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7915 event pairs, 39 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1468. Up to 98 conditions per place. [2022-11-18 19:34:09,772 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 24 selfloop transitions, 2 changer transitions 0/589 dead transitions. [2022-11-18 19:34:09,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 589 transitions, 1240 flow [2022-11-18 19:34:09,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:09,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:09,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1830 transitions. [2022-11-18 19:34:09,778 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9472049689440993 [2022-11-18 19:34:09,779 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1830 transitions. [2022-11-18 19:34:09,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1830 transitions. [2022-11-18 19:34:09,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:09,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1830 transitions. [2022-11-18 19:34:09,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.0) internal successors, (1830), 3 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:09,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:09,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:09,790 INFO L175 Difference]: Start difference. First operand has 588 places, 590 transitions, 1190 flow. Second operand 3 states and 1830 transitions. [2022-11-18 19:34:09,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 589 transitions, 1240 flow [2022-11-18 19:34:09,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 589 transitions, 1236 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:34:09,803 INFO L231 Difference]: Finished difference. Result has 579 places, 589 transitions, 1188 flow [2022-11-18 19:34:09,804 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1184, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1188, PETRI_PLACES=579, PETRI_TRANSITIONS=589} [2022-11-18 19:34:09,804 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -14 predicate places. [2022-11-18 19:34:09,805 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 589 transitions, 1188 flow [2022-11-18 19:34:09,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:09,806 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:09,806 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] [2022-11-18 19:34:09,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:34:09,807 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:09,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:09,807 INFO L85 PathProgramCache]: Analyzing trace with hash 132271975, now seen corresponding path program 1 times [2022-11-18 19:34:09,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:09,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537000289] [2022-11-18 19:34:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:09,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:09,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:09,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537000289] [2022-11-18 19:34:09,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537000289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:09,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:09,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:09,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770499414] [2022-11-18 19:34:09,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:09,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:09,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:09,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:09,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:09,918 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 644 [2022-11-18 19:34:09,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 589 transitions, 1188 flow. Second operand has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:09,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:09,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 644 [2022-11-18 19:34:09,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:10,251 INFO L130 PetriNetUnfolder]: 83/1281 cut-off events. [2022-11-18 19:34:10,251 INFO L131 PetriNetUnfolder]: For 26/30 co-relation queries the response was YES. [2022-11-18 19:34:10,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 1281 events. 83/1281 cut-off events. For 26/30 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6604 event pairs, 39 based on Foata normal form. 0/1042 useless extension candidates. Maximal degree in co-relation 1348. Up to 99 conditions per place. [2022-11-18 19:34:10,281 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 24 selfloop transitions, 2 changer transitions 0/588 dead transitions. [2022-11-18 19:34:10,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 588 transitions, 1238 flow [2022-11-18 19:34:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:10,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1830 transitions. [2022-11-18 19:34:10,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9472049689440993 [2022-11-18 19:34:10,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1830 transitions. [2022-11-18 19:34:10,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1830 transitions. [2022-11-18 19:34:10,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:10,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1830 transitions. [2022-11-18 19:34:10,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.0) internal successors, (1830), 3 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:10,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:10,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:10,298 INFO L175 Difference]: Start difference. First operand has 579 places, 589 transitions, 1188 flow. Second operand 3 states and 1830 transitions. [2022-11-18 19:34:10,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 588 transitions, 1238 flow [2022-11-18 19:34:10,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 588 transitions, 1234 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:34:10,314 INFO L231 Difference]: Finished difference. Result has 578 places, 588 transitions, 1186 flow [2022-11-18 19:34:10,315 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=576, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1186, PETRI_PLACES=578, PETRI_TRANSITIONS=588} [2022-11-18 19:34:10,317 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -15 predicate places. [2022-11-18 19:34:10,317 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 588 transitions, 1186 flow [2022-11-18 19:34:10,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:10,319 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:10,319 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] [2022-11-18 19:34:10,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:34:10,319 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:10,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:10,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1473296039, now seen corresponding path program 1 times [2022-11-18 19:34:10,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:10,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786141566] [2022-11-18 19:34:10,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:10,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:10,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:10,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786141566] [2022-11-18 19:34:10,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786141566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:10,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:10,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:10,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531927730] [2022-11-18 19:34:10,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:10,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:10,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:10,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:10,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:10,431 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-18 19:34:10,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 588 transitions, 1186 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:10,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:10,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-18 19:34:10,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:10,713 INFO L130 PetriNetUnfolder]: 49/1036 cut-off events. [2022-11-18 19:34:10,713 INFO L131 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2022-11-18 19:34:10,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1090 conditions, 1036 events. 49/1036 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4356 event pairs, 12 based on Foata normal form. 0/849 useless extension candidates. Maximal degree in co-relation 1038. Up to 40 conditions per place. [2022-11-18 19:34:10,729 INFO L137 encePairwiseOnDemand]: 638/644 looper letters, 17 selfloop transitions, 1 changer transitions 0/583 dead transitions. [2022-11-18 19:34:10,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 583 transitions, 1212 flow [2022-11-18 19:34:10,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:10,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:10,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1835 transitions. [2022-11-18 19:34:10,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497929606625258 [2022-11-18 19:34:10,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1835 transitions. [2022-11-18 19:34:10,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1835 transitions. [2022-11-18 19:34:10,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:10,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1835 transitions. [2022-11-18 19:34:10,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:10,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:10,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:10,748 INFO L175 Difference]: Start difference. First operand has 578 places, 588 transitions, 1186 flow. Second operand 3 states and 1835 transitions. [2022-11-18 19:34:10,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 583 transitions, 1212 flow [2022-11-18 19:34:10,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 583 transitions, 1208 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:34:10,761 INFO L231 Difference]: Finished difference. Result has 573 places, 583 transitions, 1174 flow [2022-11-18 19:34:10,762 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1172, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1174, PETRI_PLACES=573, PETRI_TRANSITIONS=583} [2022-11-18 19:34:10,763 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -20 predicate places. [2022-11-18 19:34:10,763 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 583 transitions, 1174 flow [2022-11-18 19:34:10,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:10,764 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:10,765 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:10,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:34:10,765 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:10,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:10,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1043330331, now seen corresponding path program 1 times [2022-11-18 19:34:10,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:10,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005727765] [2022-11-18 19:34:10,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:10,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:10,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:10,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005727765] [2022-11-18 19:34:10,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005727765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:10,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:10,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:10,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463328930] [2022-11-18 19:34:10,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:10,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:10,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:10,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:10,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:10,848 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-18 19:34:10,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 583 transitions, 1174 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:10,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:10,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-18 19:34:10,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:11,143 INFO L130 PetriNetUnfolder]: 55/1079 cut-off events. [2022-11-18 19:34:11,143 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 19:34:11,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1162 conditions, 1079 events. 55/1079 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4881 event pairs, 21 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 1111. Up to 69 conditions per place. [2022-11-18 19:34:11,161 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 21 selfloop transitions, 2 changer transitions 0/582 dead transitions. [2022-11-18 19:34:11,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 582 transitions, 1218 flow [2022-11-18 19:34:11,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:11,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1836 transitions. [2022-11-18 19:34:11,166 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503105590062112 [2022-11-18 19:34:11,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1836 transitions. [2022-11-18 19:34:11,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1836 transitions. [2022-11-18 19:34:11,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:11,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1836 transitions. [2022-11-18 19:34:11,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.0) internal successors, (1836), 3 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:11,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:11,177 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:11,177 INFO L175 Difference]: Start difference. First operand has 573 places, 583 transitions, 1174 flow. Second operand 3 states and 1836 transitions. [2022-11-18 19:34:11,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 582 transitions, 1218 flow [2022-11-18 19:34:11,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 582 transitions, 1217 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:34:11,188 INFO L231 Difference]: Finished difference. Result has 573 places, 582 transitions, 1175 flow [2022-11-18 19:34:11,189 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1171, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1175, PETRI_PLACES=573, PETRI_TRANSITIONS=582} [2022-11-18 19:34:11,190 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -20 predicate places. [2022-11-18 19:34:11,190 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 582 transitions, 1175 flow [2022-11-18 19:34:11,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:11,191 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:11,191 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:11,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:34:11,192 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:11,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:11,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1405162842, now seen corresponding path program 1 times [2022-11-18 19:34:11,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:11,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975205155] [2022-11-18 19:34:11,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:11,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:11,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:11,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:11,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975205155] [2022-11-18 19:34:11,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975205155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:11,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:11,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:34:11,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47938405] [2022-11-18 19:34:11,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:11,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:34:11,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:11,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:34:11,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:34:11,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 644 [2022-11-18 19:34:11,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 582 transitions, 1175 flow. Second operand has 6 states, 6 states have (on average 482.8333333333333) internal successors, (2897), 6 states have internal predecessors, (2897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:11,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:11,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 644 [2022-11-18 19:34:11,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:31,901 INFO L130 PetriNetUnfolder]: 45454/109850 cut-off events. [2022-11-18 19:34:31,901 INFO L131 PetriNetUnfolder]: For 351/407 co-relation queries the response was YES. [2022-11-18 19:34:32,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170125 conditions, 109850 events. 45454/109850 cut-off events. For 351/407 co-relation queries the response was YES. Maximal size of possible extension queue 3212. Compared 1414452 event pairs, 42984 based on Foata normal form. 0/89767 useless extension candidates. Maximal degree in co-relation 170075. Up to 60072 conditions per place. [2022-11-18 19:34:33,187 INFO L137 encePairwiseOnDemand]: 626/644 looper letters, 128 selfloop transitions, 15 changer transitions 0/579 dead transitions. [2022-11-18 19:34:33,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 579 transitions, 1455 flow [2022-11-18 19:34:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:34:33,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:34:33,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3032 transitions. [2022-11-18 19:34:33,195 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7846790890269151 [2022-11-18 19:34:33,196 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3032 transitions. [2022-11-18 19:34:33,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3032 transitions. [2022-11-18 19:34:33,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:33,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3032 transitions. [2022-11-18 19:34:33,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 505.3333333333333) internal successors, (3032), 6 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 644.0) internal successors, (4508), 7 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,234 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 644.0) internal successors, (4508), 7 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,235 INFO L175 Difference]: Start difference. First operand has 573 places, 582 transitions, 1175 flow. Second operand 6 states and 3032 transitions. [2022-11-18 19:34:33,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 579 transitions, 1455 flow [2022-11-18 19:34:33,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 579 transitions, 1451 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:34:33,250 INFO L231 Difference]: Finished difference. Result has 573 places, 579 transitions, 1195 flow [2022-11-18 19:34:33,251 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1165, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1195, PETRI_PLACES=573, PETRI_TRANSITIONS=579} [2022-11-18 19:34:33,254 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -20 predicate places. [2022-11-18 19:34:33,254 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 579 transitions, 1195 flow [2022-11-18 19:34:33,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 482.8333333333333) internal successors, (2897), 6 states have internal predecessors, (2897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,255 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:33,256 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:33,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:34:33,256 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:33,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:33,258 INFO L85 PathProgramCache]: Analyzing trace with hash 244814682, now seen corresponding path program 1 times [2022-11-18 19:34:33,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:33,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711753001] [2022-11-18 19:34:33,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:33,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:33,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:33,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:33,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711753001] [2022-11-18 19:34:33,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711753001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:33,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:33,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:33,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442666505] [2022-11-18 19:34:33,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:33,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:33,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:33,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:33,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:33,352 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-18 19:34:33,354 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 579 transitions, 1195 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:33,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-18 19:34:33,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:33,673 INFO L130 PetriNetUnfolder]: 66/1230 cut-off events. [2022-11-18 19:34:33,673 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-11-18 19:34:33,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1319 conditions, 1230 events. 66/1230 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6481 event pairs, 20 based on Foata normal form. 0/1013 useless extension candidates. Maximal degree in co-relation 1271. Up to 55 conditions per place. [2022-11-18 19:34:33,695 INFO L137 encePairwiseOnDemand]: 638/644 looper letters, 17 selfloop transitions, 1 changer transitions 0/574 dead transitions. [2022-11-18 19:34:33,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 574 transitions, 1221 flow [2022-11-18 19:34:33,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1835 transitions. [2022-11-18 19:34:33,701 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497929606625258 [2022-11-18 19:34:33,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1835 transitions. [2022-11-18 19:34:33,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1835 transitions. [2022-11-18 19:34:33,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:33,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1835 transitions. [2022-11-18 19:34:33,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,713 INFO L175 Difference]: Start difference. First operand has 573 places, 579 transitions, 1195 flow. Second operand 3 states and 1835 transitions. [2022-11-18 19:34:33,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 574 transitions, 1221 flow [2022-11-18 19:34:33,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 574 transitions, 1191 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:34:33,726 INFO L231 Difference]: Finished difference. Result has 565 places, 574 transitions, 1157 flow [2022-11-18 19:34:33,727 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1155, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1157, PETRI_PLACES=565, PETRI_TRANSITIONS=574} [2022-11-18 19:34:33,728 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -28 predicate places. [2022-11-18 19:34:33,728 INFO L495 AbstractCegarLoop]: Abstraction has has 565 places, 574 transitions, 1157 flow [2022-11-18 19:34:33,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,729 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:33,730 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:33,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:34:33,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:33,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:33,731 INFO L85 PathProgramCache]: Analyzing trace with hash 707788467, now seen corresponding path program 1 times [2022-11-18 19:34:33,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:33,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750459544] [2022-11-18 19:34:33,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:33,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:33,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:33,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:33,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750459544] [2022-11-18 19:34:33,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750459544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:33,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:33,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:33,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041896751] [2022-11-18 19:34:33,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:33,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:33,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:33,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:33,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:33,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-18 19:34:33,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 574 transitions, 1157 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:33,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-18 19:34:33,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:34,106 INFO L130 PetriNetUnfolder]: 83/1298 cut-off events. [2022-11-18 19:34:34,106 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-18 19:34:34,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 1298 events. 83/1298 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7143 event pairs, 39 based on Foata normal form. 0/1066 useless extension candidates. Maximal degree in co-relation 1370. Up to 96 conditions per place. [2022-11-18 19:34:34,124 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 21 selfloop transitions, 2 changer transitions 0/573 dead transitions. [2022-11-18 19:34:34,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 573 transitions, 1201 flow [2022-11-18 19:34:34,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:34,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1836 transitions. [2022-11-18 19:34:34,131 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503105590062112 [2022-11-18 19:34:34,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1836 transitions. [2022-11-18 19:34:34,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1836 transitions. [2022-11-18 19:34:34,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:34,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1836 transitions. [2022-11-18 19:34:34,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.0) internal successors, (1836), 3 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,146 INFO L175 Difference]: Start difference. First operand has 565 places, 574 transitions, 1157 flow. Second operand 3 states and 1836 transitions. [2022-11-18 19:34:34,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 573 transitions, 1201 flow [2022-11-18 19:34:34,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 573 transitions, 1200 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:34:34,159 INFO L231 Difference]: Finished difference. Result has 565 places, 573 transitions, 1158 flow [2022-11-18 19:34:34,160 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1158, PETRI_PLACES=565, PETRI_TRANSITIONS=573} [2022-11-18 19:34:34,163 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -28 predicate places. [2022-11-18 19:34:34,163 INFO L495 AbstractCegarLoop]: Abstraction has has 565 places, 573 transitions, 1158 flow [2022-11-18 19:34:34,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:34,164 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:34,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:34:34,165 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:34,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:34,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2111893535, now seen corresponding path program 1 times [2022-11-18 19:34:34,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:34,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290510688] [2022-11-18 19:34:34,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:34,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:34,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:34,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290510688] [2022-11-18 19:34:34,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290510688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:34,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:34,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:34,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293406739] [2022-11-18 19:34:34,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:34,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:34,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:34,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:34,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:34,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-18 19:34:34,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 573 transitions, 1158 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:34,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-18 19:34:34,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:34,599 INFO L130 PetriNetUnfolder]: 59/1118 cut-off events. [2022-11-18 19:34:34,599 INFO L131 PetriNetUnfolder]: For 17/19 co-relation queries the response was YES. [2022-11-18 19:34:34,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 1118 events. 59/1118 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5183 event pairs, 20 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 1136. Up to 56 conditions per place. [2022-11-18 19:34:34,617 INFO L137 encePairwiseOnDemand]: 638/644 looper letters, 17 selfloop transitions, 1 changer transitions 0/568 dead transitions. [2022-11-18 19:34:34,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 568 transitions, 1184 flow [2022-11-18 19:34:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:34,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:34,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1835 transitions. [2022-11-18 19:34:34,621 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497929606625258 [2022-11-18 19:34:34,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1835 transitions. [2022-11-18 19:34:34,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1835 transitions. [2022-11-18 19:34:34,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:34,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1835 transitions. [2022-11-18 19:34:34,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,632 INFO L175 Difference]: Start difference. First operand has 565 places, 573 transitions, 1158 flow. Second operand 3 states and 1835 transitions. [2022-11-18 19:34:34,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 568 transitions, 1184 flow [2022-11-18 19:34:34,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 568 transitions, 1180 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:34:34,640 INFO L231 Difference]: Finished difference. Result has 560 places, 568 transitions, 1146 flow [2022-11-18 19:34:34,642 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1146, PETRI_PLACES=560, PETRI_TRANSITIONS=568} [2022-11-18 19:34:34,642 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -33 predicate places. [2022-11-18 19:34:34,643 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 568 transitions, 1146 flow [2022-11-18 19:34:34,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,644 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:34,644 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:34,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:34:34,644 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:34,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:34,645 INFO L85 PathProgramCache]: Analyzing trace with hash -911574077, now seen corresponding path program 1 times [2022-11-18 19:34:34,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:34,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541193934] [2022-11-18 19:34:34,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:34,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:34,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:34,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:34,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541193934] [2022-11-18 19:34:34,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541193934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:34,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:34,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:34,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812794320] [2022-11-18 19:34:34,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:34,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:34,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:34,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:34,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:34,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-18 19:34:34,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 568 transitions, 1146 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:34,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-18 19:34:34,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:34,911 INFO L130 PetriNetUnfolder]: 74/1061 cut-off events. [2022-11-18 19:34:34,911 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-18 19:34:34,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 1061 events. 74/1061 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4883 event pairs, 39 based on Foata normal form. 0/892 useless extension candidates. Maximal degree in co-relation 1119. Up to 96 conditions per place. [2022-11-18 19:34:34,924 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 21 selfloop transitions, 2 changer transitions 0/567 dead transitions. [2022-11-18 19:34:34,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 567 transitions, 1190 flow [2022-11-18 19:34:34,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:34,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1836 transitions. [2022-11-18 19:34:34,929 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503105590062112 [2022-11-18 19:34:34,929 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1836 transitions. [2022-11-18 19:34:34,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1836 transitions. [2022-11-18 19:34:34,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:34,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1836 transitions. [2022-11-18 19:34:34,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.0) internal successors, (1836), 3 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,939 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,939 INFO L175 Difference]: Start difference. First operand has 560 places, 568 transitions, 1146 flow. Second operand 3 states and 1836 transitions. [2022-11-18 19:34:34,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 567 transitions, 1190 flow [2022-11-18 19:34:34,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 567 transitions, 1189 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:34:34,948 INFO L231 Difference]: Finished difference. Result has 560 places, 567 transitions, 1147 flow [2022-11-18 19:34:34,950 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1143, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1147, PETRI_PLACES=560, PETRI_TRANSITIONS=567} [2022-11-18 19:34:34,951 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -33 predicate places. [2022-11-18 19:34:34,951 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 567 transitions, 1147 flow [2022-11-18 19:34:34,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:34,952 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:34,952 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:34,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:34:34,953 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:34,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:34,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1236871821, now seen corresponding path program 1 times [2022-11-18 19:34:34,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:34,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963845279] [2022-11-18 19:34:34,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:34,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:35,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:35,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963845279] [2022-11-18 19:34:35,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963845279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:35,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:35,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:35,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761927396] [2022-11-18 19:34:35,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:35,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:35,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:35,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:35,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:35,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 644 [2022-11-18 19:34:35,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 567 transitions, 1147 flow. Second operand has 3 states, 3 states have (on average 593.0) internal successors, (1779), 3 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:35,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 644 [2022-11-18 19:34:35,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:35,163 INFO L130 PetriNetUnfolder]: 48/700 cut-off events. [2022-11-18 19:34:35,164 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 19:34:35,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 700 events. 48/700 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2194 event pairs, 6 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 766. Up to 61 conditions per place. [2022-11-18 19:34:35,171 INFO L137 encePairwiseOnDemand]: 633/644 looper letters, 27 selfloop transitions, 2 changer transitions 0/560 dead transitions. [2022-11-18 19:34:35,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 560 transitions, 1193 flow [2022-11-18 19:34:35,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:35,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:35,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1814 transitions. [2022-11-18 19:34:35,175 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9389233954451346 [2022-11-18 19:34:35,176 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1814 transitions. [2022-11-18 19:34:35,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1814 transitions. [2022-11-18 19:34:35,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:35,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1814 transitions. [2022-11-18 19:34:35,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.6666666666666) internal successors, (1814), 3 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,185 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,185 INFO L175 Difference]: Start difference. First operand has 560 places, 567 transitions, 1147 flow. Second operand 3 states and 1814 transitions. [2022-11-18 19:34:35,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 560 transitions, 1193 flow [2022-11-18 19:34:35,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 560 transitions, 1189 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:34:35,199 INFO L231 Difference]: Finished difference. Result has 551 places, 558 transitions, 1129 flow [2022-11-18 19:34:35,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1129, PETRI_PLACES=551, PETRI_TRANSITIONS=558} [2022-11-18 19:34:35,200 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -42 predicate places. [2022-11-18 19:34:35,200 INFO L495 AbstractCegarLoop]: Abstraction has has 551 places, 558 transitions, 1129 flow [2022-11-18 19:34:35,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.0) internal successors, (1779), 3 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:35,201 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:35,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:34:35,202 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:35,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:35,202 INFO L85 PathProgramCache]: Analyzing trace with hash -642911240, now seen corresponding path program 1 times [2022-11-18 19:34:35,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:35,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607017201] [2022-11-18 19:34:35,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:35,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:35,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:35,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:35,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607017201] [2022-11-18 19:34:35,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607017201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:35,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:35,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:35,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606952311] [2022-11-18 19:34:35,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:35,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:35,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:35,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:35,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:35,272 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 644 [2022-11-18 19:34:35,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 558 transitions, 1129 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:35,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 644 [2022-11-18 19:34:35,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:35,440 INFO L130 PetriNetUnfolder]: 51/779 cut-off events. [2022-11-18 19:34:35,441 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-18 19:34:35,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 882 conditions, 779 events. 51/779 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2844 event pairs, 20 based on Foata normal form. 0/689 useless extension candidates. Maximal degree in co-relation 832. Up to 60 conditions per place. [2022-11-18 19:34:35,451 INFO L137 encePairwiseOnDemand]: 633/644 looper letters, 27 selfloop transitions, 2 changer transitions 0/551 dead transitions. [2022-11-18 19:34:35,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 551 transitions, 1175 flow [2022-11-18 19:34:35,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:35,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1814 transitions. [2022-11-18 19:34:35,455 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9389233954451346 [2022-11-18 19:34:35,456 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1814 transitions. [2022-11-18 19:34:35,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1814 transitions. [2022-11-18 19:34:35,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:35,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1814 transitions. [2022-11-18 19:34:35,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.6666666666666) internal successors, (1814), 3 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,464 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,465 INFO L175 Difference]: Start difference. First operand has 551 places, 558 transitions, 1129 flow. Second operand 3 states and 1814 transitions. [2022-11-18 19:34:35,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 551 transitions, 1175 flow [2022-11-18 19:34:35,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 551 transitions, 1171 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:34:35,475 INFO L231 Difference]: Finished difference. Result has 542 places, 549 transitions, 1111 flow [2022-11-18 19:34:35,476 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1111, PETRI_PLACES=542, PETRI_TRANSITIONS=549} [2022-11-18 19:34:35,477 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -51 predicate places. [2022-11-18 19:34:35,477 INFO L495 AbstractCegarLoop]: Abstraction has has 542 places, 549 transitions, 1111 flow [2022-11-18 19:34:35,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:35,478 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:35,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:34:35,479 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:35,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:35,479 INFO L85 PathProgramCache]: Analyzing trace with hash -965931463, now seen corresponding path program 1 times [2022-11-18 19:34:35,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:35,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506139753] [2022-11-18 19:34:35,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:35,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:35,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:35,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506139753] [2022-11-18 19:34:35,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506139753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:35,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:35,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:34:35,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107156983] [2022-11-18 19:34:35,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:35,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:35,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:35,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:35,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:35,556 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 644 [2022-11-18 19:34:35,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 549 transitions, 1111 flow. Second operand has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:35,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 644 [2022-11-18 19:34:35,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:35,674 INFO L130 PetriNetUnfolder]: 38/676 cut-off events. [2022-11-18 19:34:35,674 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 19:34:35,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 676 events. 38/676 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1906 event pairs, 12 based on Foata normal form. 0/605 useless extension candidates. Maximal degree in co-relation 702. Up to 37 conditions per place. [2022-11-18 19:34:35,681 INFO L137 encePairwiseOnDemand]: 640/644 looper letters, 14 selfloop transitions, 3 changer transitions 0/552 dead transitions. [2022-11-18 19:34:35,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 552 transitions, 1153 flow [2022-11-18 19:34:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:35,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:35,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1860 transitions. [2022-11-18 19:34:35,686 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9627329192546584 [2022-11-18 19:34:35,686 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1860 transitions. [2022-11-18 19:34:35,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1860 transitions. [2022-11-18 19:34:35,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:35,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1860 transitions. [2022-11-18 19:34:35,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,696 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,697 INFO L175 Difference]: Start difference. First operand has 542 places, 549 transitions, 1111 flow. Second operand 3 states and 1860 transitions. [2022-11-18 19:34:35,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 552 transitions, 1153 flow [2022-11-18 19:34:35,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 552 transitions, 1149 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:34:35,708 INFO L231 Difference]: Finished difference. Result has 544 places, 550 transitions, 1125 flow [2022-11-18 19:34:35,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1125, PETRI_PLACES=544, PETRI_TRANSITIONS=550} [2022-11-18 19:34:35,710 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -49 predicate places. [2022-11-18 19:34:35,710 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 550 transitions, 1125 flow [2022-11-18 19:34:35,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,711 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:35,712 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:35,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:34:35,712 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:35,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:35,713 INFO L85 PathProgramCache]: Analyzing trace with hash -883135441, now seen corresponding path program 1 times [2022-11-18 19:34:35,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:35,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035074915] [2022-11-18 19:34:35,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:35,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:35,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:35,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035074915] [2022-11-18 19:34:35,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035074915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:35,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:35,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:35,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993963763] [2022-11-18 19:34:35,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:35,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:35,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:35,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:35,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:35,802 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 644 [2022-11-18 19:34:35,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 550 transitions, 1125 flow. Second operand has 3 states, 3 states have (on average 593.6666666666666) internal successors, (1781), 3 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:35,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 644 [2022-11-18 19:34:35,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:35,951 INFO L130 PetriNetUnfolder]: 48/683 cut-off events. [2022-11-18 19:34:35,951 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-18 19:34:35,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 683 events. 48/683 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2335 event pairs, 6 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 729. Up to 59 conditions per place. [2022-11-18 19:34:35,958 INFO L137 encePairwiseOnDemand]: 633/644 looper letters, 27 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-11-18 19:34:35,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 543 transitions, 1171 flow [2022-11-18 19:34:35,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:35,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:35,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1814 transitions. [2022-11-18 19:34:35,963 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9389233954451346 [2022-11-18 19:34:35,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1814 transitions. [2022-11-18 19:34:35,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1814 transitions. [2022-11-18 19:34:35,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:35,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1814 transitions. [2022-11-18 19:34:35,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.6666666666666) internal successors, (1814), 3 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,972 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,973 INFO L175 Difference]: Start difference. First operand has 544 places, 550 transitions, 1125 flow. Second operand 3 states and 1814 transitions. [2022-11-18 19:34:35,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 543 transitions, 1171 flow [2022-11-18 19:34:35,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 543 transitions, 1165 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:34:35,982 INFO L231 Difference]: Finished difference. Result has 535 places, 541 transitions, 1105 flow [2022-11-18 19:34:35,983 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1101, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1105, PETRI_PLACES=535, PETRI_TRANSITIONS=541} [2022-11-18 19:34:35,984 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -58 predicate places. [2022-11-18 19:34:35,984 INFO L495 AbstractCegarLoop]: Abstraction has has 535 places, 541 transitions, 1105 flow [2022-11-18 19:34:35,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.6666666666666) internal successors, (1781), 3 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:35,985 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:35,986 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:35,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:34:35,986 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:35,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1444306538, now seen corresponding path program 1 times [2022-11-18 19:34:35,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:35,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506164647] [2022-11-18 19:34:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:35,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:36,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:36,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506164647] [2022-11-18 19:34:36,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506164647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:36,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:36,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:36,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603626049] [2022-11-18 19:34:36,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:36,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:36,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:36,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:36,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:36,071 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 607 out of 644 [2022-11-18 19:34:36,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 541 transitions, 1105 flow. Second operand has 3 states, 3 states have (on average 608.6666666666666) internal successors, (1826), 3 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:36,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:36,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 607 of 644 [2022-11-18 19:34:36,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:36,357 INFO L130 PetriNetUnfolder]: 49/1005 cut-off events. [2022-11-18 19:34:36,357 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-18 19:34:36,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 1005 events. 49/1005 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3979 event pairs, 2 based on Foata normal form. 0/913 useless extension candidates. Maximal degree in co-relation 1043. Up to 45 conditions per place. [2022-11-18 19:34:36,366 INFO L137 encePairwiseOnDemand]: 636/644 looper letters, 21 selfloop transitions, 4 changer transitions 0/546 dead transitions. [2022-11-18 19:34:36,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 546 transitions, 1170 flow [2022-11-18 19:34:36,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:36,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1850 transitions. [2022-11-18 19:34:36,371 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9575569358178054 [2022-11-18 19:34:36,371 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1850 transitions. [2022-11-18 19:34:36,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1850 transitions. [2022-11-18 19:34:36,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:36,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1850 transitions. [2022-11-18 19:34:36,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 616.6666666666666) internal successors, (1850), 3 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:36,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:36,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:36,380 INFO L175 Difference]: Start difference. First operand has 535 places, 541 transitions, 1105 flow. Second operand 3 states and 1850 transitions. [2022-11-18 19:34:36,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 546 transitions, 1170 flow [2022-11-18 19:34:36,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 546 transitions, 1166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:34:36,390 INFO L231 Difference]: Finished difference. Result has 532 places, 541 transitions, 1121 flow [2022-11-18 19:34:36,391 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1121, PETRI_PLACES=532, PETRI_TRANSITIONS=541} [2022-11-18 19:34:36,392 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -61 predicate places. [2022-11-18 19:34:36,392 INFO L495 AbstractCegarLoop]: Abstraction has has 532 places, 541 transitions, 1121 flow [2022-11-18 19:34:36,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 608.6666666666666) internal successors, (1826), 3 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:36,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:36,393 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:36,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:34:36,393 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:36,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:36,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1242759772, now seen corresponding path program 1 times [2022-11-18 19:34:36,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:36,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572019539] [2022-11-18 19:34:36,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:36,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:36,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:36,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:36,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572019539] [2022-11-18 19:34:36,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572019539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:36,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:36,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:34:36,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302494412] [2022-11-18 19:34:36,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:36,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:34:36,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:36,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:36,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:36,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 644 [2022-11-18 19:34:36,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 541 transitions, 1121 flow. Second operand has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:36,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:36,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 644 [2022-11-18 19:34:36,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:36,648 INFO L130 PetriNetUnfolder]: 63/937 cut-off events. [2022-11-18 19:34:36,649 INFO L131 PetriNetUnfolder]: For 24/34 co-relation queries the response was YES. [2022-11-18 19:34:36,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 937 events. 63/937 cut-off events. For 24/34 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3764 event pairs, 18 based on Foata normal form. 0/839 useless extension candidates. Maximal degree in co-relation 1001. Up to 54 conditions per place. [2022-11-18 19:34:36,663 INFO L137 encePairwiseOnDemand]: 640/644 looper letters, 14 selfloop transitions, 3 changer transitions 0/544 dead transitions. [2022-11-18 19:34:36,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 544 transitions, 1163 flow [2022-11-18 19:34:36,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:36,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:34:36,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1860 transitions. [2022-11-18 19:34:36,668 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9627329192546584 [2022-11-18 19:34:36,668 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1860 transitions. [2022-11-18 19:34:36,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1860 transitions. [2022-11-18 19:34:36,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:36,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1860 transitions. [2022-11-18 19:34:36,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:36,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:36,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:36,683 INFO L175 Difference]: Start difference. First operand has 532 places, 541 transitions, 1121 flow. Second operand 3 states and 1860 transitions. [2022-11-18 19:34:36,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 544 transitions, 1163 flow [2022-11-18 19:34:36,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 544 transitions, 1163 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:34:36,693 INFO L231 Difference]: Finished difference. Result has 536 places, 542 transitions, 1139 flow [2022-11-18 19:34:36,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1139, PETRI_PLACES=536, PETRI_TRANSITIONS=542} [2022-11-18 19:34:36,695 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -57 predicate places. [2022-11-18 19:34:36,697 INFO L495 AbstractCegarLoop]: Abstraction has has 536 places, 542 transitions, 1139 flow [2022-11-18 19:34:36,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:36,698 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:36,698 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:36,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:34:36,699 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-18 19:34:36,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:36,699 INFO L85 PathProgramCache]: Analyzing trace with hash -191153564, now seen corresponding path program 1 times [2022-11-18 19:34:36,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:36,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168889829] [2022-11-18 19:34:36,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:36,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:37,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:37,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168889829] [2022-11-18 19:34:37,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168889829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:37,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:37,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:34:37,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560737014] [2022-11-18 19:34:37,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:37,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:34:37,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:37,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:34:37,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:34:37,319 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 508 out of 644 [2022-11-18 19:34:37,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 542 transitions, 1139 flow. Second operand has 6 states, 6 states have (on average 510.0) internal successors, (3060), 6 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:37,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:37,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 508 of 644 [2022-11-18 19:34:37,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand