./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_safe-5-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-5-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN --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 40fcfd4444bd180f6e5508f0972ed92e70894b01f23e03dc2e761819c6d5a859 --- 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-6b4ec56 [2022-11-20 12:17:14,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:17:14,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:17:14,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:17:14,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:17:14,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:17:14,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:17:14,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:17:14,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:17:14,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:17:14,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:17:14,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:17:14,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:17:14,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:17:14,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:17:14,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:17:14,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:17:14,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:17:14,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:17:14,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:17:14,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:17:14,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:17:14,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:17:14,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:17:14,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:17:14,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:17:14,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:17:14,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:17:14,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:17:14,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:17:14,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:17:14,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:17:14,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:17:14,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:17:14,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:17:14,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:17:14,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:17:14,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:17:14,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:17:14,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:17:14,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:17:14,792 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:17:14,820 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:17:14,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:17:14,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:17:14,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:17:14,822 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:17:14,822 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:17:14,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:17:14,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:17:14,824 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:17:14,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:17:14,824 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:17:14,824 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:17:14,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:17:14,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:17:14,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:17:14,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:17:14,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:17:14,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:17:14,826 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:17:14,826 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:17:14,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:17:14,826 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:17:14,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:17:14,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:17:14,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:17:14,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:17:14,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:17:14,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:17:14,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:17:14,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:17:14,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:17:14,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:17:14,830 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:17:14,830 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:17:14,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:17:14,830 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_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40fcfd4444bd180f6e5508f0972ed92e70894b01f23e03dc2e761819c6d5a859 [2022-11-20 12:17:15,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:17:15,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:17:15,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:17:15,242 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:17:15,243 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:17:15,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread/fib_safe-5-racy.i [2022-11-20 12:17:19,077 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:17:19,429 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:17:19,437 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/sv-benchmarks/c/pthread/fib_safe-5-racy.i [2022-11-20 12:17:19,459 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/data/e3fb29ac3/5940c9144c494ad293851a0b574ca558/FLAG26a09e7e1 [2022-11-20 12:17:19,487 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/data/e3fb29ac3/5940c9144c494ad293851a0b574ca558 [2022-11-20 12:17:19,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:17:19,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:17:19,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:17:19,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:17:19,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:17:19,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:17:19" (1/1) ... [2022-11-20 12:17:19,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1636d178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:19, skipping insertion in model container [2022-11-20 12:17:19,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:17:19" (1/1) ... [2022-11-20 12:17:19,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:17:19,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:17:20,116 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/sv-benchmarks/c/pthread/fib_safe-5-racy.i[30813,30826] [2022-11-20 12:17:20,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:17:20,141 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:17:20,216 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/sv-benchmarks/c/pthread/fib_safe-5-racy.i[30813,30826] [2022-11-20 12:17:20,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:17:20,260 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:17:20,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20 WrapperNode [2022-11-20 12:17:20,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:17:20,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:17:20,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:17:20,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:17:20,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (1/1) ... [2022-11-20 12:17:20,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (1/1) ... [2022-11-20 12:17:20,335 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-11-20 12:17:20,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:17:20,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:17:20,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:17:20,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:17:20,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (1/1) ... [2022-11-20 12:17:20,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (1/1) ... [2022-11-20 12:17:20,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (1/1) ... [2022-11-20 12:17:20,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (1/1) ... [2022-11-20 12:17:20,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (1/1) ... [2022-11-20 12:17:20,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (1/1) ... [2022-11-20 12:17:20,401 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (1/1) ... [2022-11-20 12:17:20,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (1/1) ... [2022-11-20 12:17:20,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:17:20,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:17:20,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:17:20,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:17:20,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (1/1) ... [2022-11-20 12:17:20,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:17:20,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:17:20,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:17:20,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:17:20,508 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-20 12:17:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-20 12:17:20,509 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-20 12:17:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-20 12:17:20,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:17:20,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:17:20,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:17:20,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:17:20,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:17:20,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:17:20,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:17:20,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:17:20,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:17:20,513 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:17:20,779 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:17:20,797 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:17:21,297 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:17:21,405 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:17:21,414 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 12:17:21,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:17:21 BoogieIcfgContainer [2022-11-20 12:17:21,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:17:21,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:17:21,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:17:21,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:17:21,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:17:19" (1/3) ... [2022-11-20 12:17:21,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f4b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:17:21, skipping insertion in model container [2022-11-20 12:17:21,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:20" (2/3) ... [2022-11-20 12:17:21,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f4b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:17:21, skipping insertion in model container [2022-11-20 12:17:21,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:17:21" (3/3) ... [2022-11-20 12:17:21,434 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-5-racy.i [2022-11-20 12:17:21,446 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:17:21,459 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:17:21,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-20 12:17:21,460 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:17:21,601 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:17:21,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-11-20 12:17:21,746 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-20 12:17:21,746 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:21,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 191 events. 8/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 366 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2022-11-20 12:17:21,758 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 193 transitions, 396 flow [2022-11-20 12:17:21,766 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 191 transitions, 388 flow [2022-11-20 12:17:21,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:17:21,786 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;@5f293040, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:17:21,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-20 12:17:21,796 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-20 12:17:21,796 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:21,797 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:21,798 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:21,798 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:21,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:21,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1806377174, now seen corresponding path program 1 times [2022-11-20 12:17:21,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:21,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346220003] [2022-11-20 12:17:21,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:21,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:22,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:22,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346220003] [2022-11-20 12:17:22,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346220003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:22,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:22,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:17:22,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031670881] [2022-11-20 12:17:22,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:22,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:17:22,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:22,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:17:22,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:17:22,140 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 193 [2022-11-20 12:17:22,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 191 transitions, 388 flow. Second operand has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:22,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 193 [2022-11-20 12:17:22,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:22,303 INFO L130 PetriNetUnfolder]: 9/295 cut-off events. [2022-11-20 12:17:22,304 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:17:22,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 295 events. 9/295 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 939 event pairs, 2 based on Foata normal form. 10/255 useless extension candidates. Maximal degree in co-relation 274. Up to 11 conditions per place. [2022-11-20 12:17:22,311 INFO L137 encePairwiseOnDemand]: 181/193 looper letters, 6 selfloop transitions, 0 changer transitions 0/178 dead transitions. [2022-11-20 12:17:22,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 178 transitions, 374 flow [2022-11-20 12:17:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:17:22,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 12:17:22,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 366 transitions. [2022-11-20 12:17:22,340 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9481865284974094 [2022-11-20 12:17:22,341 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 366 transitions. [2022-11-20 12:17:22,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 366 transitions. [2022-11-20 12:17:22,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:22,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 366 transitions. [2022-11-20 12:17:22,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 183.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,368 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,370 INFO L175 Difference]: Start difference. First operand has 190 places, 191 transitions, 388 flow. Second operand 2 states and 366 transitions. [2022-11-20 12:17:22,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 178 transitions, 374 flow [2022-11-20 12:17:22,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 178 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:22,386 INFO L231 Difference]: Finished difference. Result has 180 places, 178 transitions, 360 flow [2022-11-20 12:17:22,389 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=360, PETRI_PLACES=180, PETRI_TRANSITIONS=178} [2022-11-20 12:17:22,394 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -10 predicate places. [2022-11-20 12:17:22,394 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 178 transitions, 360 flow [2022-11-20 12:17:22,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,395 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:22,396 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] [2022-11-20 12:17:22,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:17:22,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:22,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:22,399 INFO L85 PathProgramCache]: Analyzing trace with hash -929261081, now seen corresponding path program 1 times [2022-11-20 12:17:22,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:22,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476804147] [2022-11-20 12:17:22,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:22,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:22,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:22,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:22,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476804147] [2022-11-20 12:17:22,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476804147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:22,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:22,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:22,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468977955] [2022-11-20 12:17:22,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:22,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:22,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:22,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:22,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:22,624 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-20 12:17:22,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 178 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:22,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-20 12:17:22,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:22,797 INFO L130 PetriNetUnfolder]: 48/393 cut-off events. [2022-11-20 12:17:22,797 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:22,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 393 events. 48/393 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1813 event pairs, 14 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 511. Up to 77 conditions per place. [2022-11-20 12:17:22,813 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 19 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2022-11-20 12:17:22,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 179 transitions, 406 flow [2022-11-20 12:17:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:22,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 502 transitions. [2022-11-20 12:17:22,822 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8670120898100173 [2022-11-20 12:17:22,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 502 transitions. [2022-11-20 12:17:22,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 502 transitions. [2022-11-20 12:17:22,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:22,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 502 transitions. [2022-11-20 12:17:22,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,833 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,833 INFO L175 Difference]: Start difference. First operand has 180 places, 178 transitions, 360 flow. Second operand 3 states and 502 transitions. [2022-11-20 12:17:22,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 179 transitions, 406 flow [2022-11-20 12:17:22,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 179 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:17:22,843 INFO L231 Difference]: Finished difference. Result has 181 places, 177 transitions, 362 flow [2022-11-20 12:17:22,844 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=181, PETRI_TRANSITIONS=177} [2022-11-20 12:17:22,845 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -9 predicate places. [2022-11-20 12:17:22,845 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 177 transitions, 362 flow [2022-11-20 12:17:22,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,847 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:22,848 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] [2022-11-20 12:17:22,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:17:22,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:22,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:22,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1742837375, now seen corresponding path program 1 times [2022-11-20 12:17:22,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:22,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655243246] [2022-11-20 12:17:22,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:22,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:22,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:22,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:22,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655243246] [2022-11-20 12:17:22,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655243246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:22,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:22,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:22,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661305915] [2022-11-20 12:17:22,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:22,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:22,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:22,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:22,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:22,969 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-20 12:17:22,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 177 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:22,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:22,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-20 12:17:22,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:23,056 INFO L130 PetriNetUnfolder]: 34/261 cut-off events. [2022-11-20 12:17:23,057 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:17:23,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 261 events. 34/261 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 975 event pairs, 11 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 354. Up to 34 conditions per place. [2022-11-20 12:17:23,064 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2022-11-20 12:17:23,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 177 transitions, 398 flow [2022-11-20 12:17:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:23,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2022-11-20 12:17:23,067 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8721934369602763 [2022-11-20 12:17:23,067 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 505 transitions. [2022-11-20 12:17:23,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 505 transitions. [2022-11-20 12:17:23,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:23,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 505 transitions. [2022-11-20 12:17:23,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,073 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,073 INFO L175 Difference]: Start difference. First operand has 181 places, 177 transitions, 362 flow. Second operand 3 states and 505 transitions. [2022-11-20 12:17:23,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 177 transitions, 398 flow [2022-11-20 12:17:23,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 177 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:23,080 INFO L231 Difference]: Finished difference. Result has 179 places, 175 transitions, 358 flow [2022-11-20 12:17:23,081 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=179, PETRI_TRANSITIONS=175} [2022-11-20 12:17:23,084 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -11 predicate places. [2022-11-20 12:17:23,084 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 175 transitions, 358 flow [2022-11-20 12:17:23,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,085 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:23,086 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] [2022-11-20 12:17:23,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:17:23,088 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:23,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:23,089 INFO L85 PathProgramCache]: Analyzing trace with hash -418600324, now seen corresponding path program 1 times [2022-11-20 12:17:23,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:23,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368821203] [2022-11-20 12:17:23,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:23,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:23,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:23,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368821203] [2022-11-20 12:17:23,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368821203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:23,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:23,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:23,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916742150] [2022-11-20 12:17:23,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:23,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:23,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:23,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:23,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:23,241 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-20 12:17:23,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 175 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:23,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-20 12:17:23,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:23,338 INFO L130 PetriNetUnfolder]: 22/303 cut-off events. [2022-11-20 12:17:23,338 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:23,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 303 events. 22/303 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1161 event pairs, 13 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 360. Up to 44 conditions per place. [2022-11-20 12:17:23,344 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 18 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2022-11-20 12:17:23,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 175 transitions, 398 flow [2022-11-20 12:17:23,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:23,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:23,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 501 transitions. [2022-11-20 12:17:23,347 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8652849740932642 [2022-11-20 12:17:23,348 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 501 transitions. [2022-11-20 12:17:23,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 501 transitions. [2022-11-20 12:17:23,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:23,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 501 transitions. [2022-11-20 12:17:23,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,353 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,354 INFO L175 Difference]: Start difference. First operand has 179 places, 175 transitions, 358 flow. Second operand 3 states and 501 transitions. [2022-11-20 12:17:23,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 175 transitions, 398 flow [2022-11-20 12:17:23,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 175 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:23,358 INFO L231 Difference]: Finished difference. Result has 178 places, 174 transitions, 356 flow [2022-11-20 12:17:23,359 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=178, PETRI_TRANSITIONS=174} [2022-11-20 12:17:23,360 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -12 predicate places. [2022-11-20 12:17:23,360 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 174 transitions, 356 flow [2022-11-20 12:17:23,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,361 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:23,362 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] [2022-11-20 12:17:23,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:17:23,362 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:23,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:23,363 INFO L85 PathProgramCache]: Analyzing trace with hash 2063316520, now seen corresponding path program 1 times [2022-11-20 12:17:23,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:23,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754727616] [2022-11-20 12:17:23,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:23,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:23,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:23,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754727616] [2022-11-20 12:17:23,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754727616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:23,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:23,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:23,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671366300] [2022-11-20 12:17:23,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:23,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:23,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:23,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:23,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:23,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-20 12:17:23,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 174 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:23,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-20 12:17:23,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:23,538 INFO L130 PetriNetUnfolder]: 18/295 cut-off events. [2022-11-20 12:17:23,538 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:17:23,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 295 events. 18/295 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1099 event pairs, 6 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 342. Up to 23 conditions per place. [2022-11-20 12:17:23,544 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-20 12:17:23,544 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 173 transitions, 386 flow [2022-11-20 12:17:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:23,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:23,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-20 12:17:23,547 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-20 12:17:23,547 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-20 12:17:23,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-20 12:17:23,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:23,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-20 12:17:23,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,552 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,552 INFO L175 Difference]: Start difference. First operand has 178 places, 174 transitions, 356 flow. Second operand 3 states and 504 transitions. [2022-11-20 12:17:23,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 173 transitions, 386 flow [2022-11-20 12:17:23,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 173 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:23,557 INFO L231 Difference]: Finished difference. Result has 176 places, 172 transitions, 352 flow [2022-11-20 12:17:23,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2022-11-20 12:17:23,558 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -14 predicate places. [2022-11-20 12:17:23,558 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 352 flow [2022-11-20 12:17:23,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,559 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:23,560 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] [2022-11-20 12:17:23,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:17:23,560 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:23,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:23,561 INFO L85 PathProgramCache]: Analyzing trace with hash 940500773, now seen corresponding path program 1 times [2022-11-20 12:17:23,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:23,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654518336] [2022-11-20 12:17:23,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:23,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:23,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:23,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654518336] [2022-11-20 12:17:23,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654518336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:23,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:23,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:23,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538693745] [2022-11-20 12:17:23,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:23,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:23,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:23,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:23,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:23,632 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 193 [2022-11-20 12:17:23,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:23,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 193 [2022-11-20 12:17:23,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:23,797 INFO L130 PetriNetUnfolder]: 69/506 cut-off events. [2022-11-20 12:17:23,797 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:23,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 506 events. 69/506 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2804 event pairs, 50 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 638. Up to 107 conditions per place. [2022-11-20 12:17:23,805 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 20 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-20 12:17:23,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 173 transitions, 398 flow [2022-11-20 12:17:23,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:23,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2022-11-20 12:17:23,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8635578583765112 [2022-11-20 12:17:23,809 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 500 transitions. [2022-11-20 12:17:23,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 500 transitions. [2022-11-20 12:17:23,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:23,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 500 transitions. [2022-11-20 12:17:23,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,814 INFO L175 Difference]: Start difference. First operand has 176 places, 172 transitions, 352 flow. Second operand 3 states and 500 transitions. [2022-11-20 12:17:23,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 173 transitions, 398 flow [2022-11-20 12:17:23,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 173 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:23,820 INFO L231 Difference]: Finished difference. Result has 175 places, 171 transitions, 350 flow [2022-11-20 12:17:23,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=175, PETRI_TRANSITIONS=171} [2022-11-20 12:17:23,824 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -15 predicate places. [2022-11-20 12:17:23,824 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 171 transitions, 350 flow [2022-11-20 12:17:23,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,825 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:23,826 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] [2022-11-20 12:17:23,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:17:23,826 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:23,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:23,827 INFO L85 PathProgramCache]: Analyzing trace with hash 193157200, now seen corresponding path program 1 times [2022-11-20 12:17:23,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:23,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100677998] [2022-11-20 12:17:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:23,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:23,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:23,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100677998] [2022-11-20 12:17:23,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100677998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:23,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:23,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:23,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965375060] [2022-11-20 12:17:23,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:23,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:23,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:23,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:23,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:23,959 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-20 12:17:23,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 171 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:23,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:23,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-20 12:17:23,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:24,053 INFO L130 PetriNetUnfolder]: 26/228 cut-off events. [2022-11-20 12:17:24,054 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:24,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 228 events. 26/228 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 802 event pairs, 16 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 312. Up to 49 conditions per place. [2022-11-20 12:17:24,058 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 16 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2022-11-20 12:17:24,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 172 transitions, 390 flow [2022-11-20 12:17:24,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:24,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:24,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2022-11-20 12:17:24,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8618307426597582 [2022-11-20 12:17:24,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2022-11-20 12:17:24,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2022-11-20 12:17:24,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:24,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2022-11-20 12:17:24,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,069 INFO L175 Difference]: Start difference. First operand has 175 places, 171 transitions, 350 flow. Second operand 3 states and 499 transitions. [2022-11-20 12:17:24,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 172 transitions, 390 flow [2022-11-20 12:17:24,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 172 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:24,073 INFO L231 Difference]: Finished difference. Result has 174 places, 170 transitions, 348 flow [2022-11-20 12:17:24,075 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=174, PETRI_TRANSITIONS=170} [2022-11-20 12:17:24,075 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -16 predicate places. [2022-11-20 12:17:24,076 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 170 transitions, 348 flow [2022-11-20 12:17:24,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:24,077 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] [2022-11-20 12:17:24,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:17:24,077 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:24,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:24,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1907786638, now seen corresponding path program 1 times [2022-11-20 12:17:24,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:24,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174874266] [2022-11-20 12:17:24,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:24,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:24,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:24,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:24,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174874266] [2022-11-20 12:17:24,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174874266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:24,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:24,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:24,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614056212] [2022-11-20 12:17:24,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:24,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:24,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:24,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:24,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:24,165 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-20 12:17:24,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,166 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:24,166 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-20 12:17:24,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:24,319 INFO L130 PetriNetUnfolder]: 49/471 cut-off events. [2022-11-20 12:17:24,319 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:24,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 471 events. 49/471 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2379 event pairs, 22 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 561. Up to 51 conditions per place. [2022-11-20 12:17:24,325 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2022-11-20 12:17:24,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 170 transitions, 382 flow [2022-11-20 12:17:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:24,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:24,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2022-11-20 12:17:24,327 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8721934369602763 [2022-11-20 12:17:24,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 505 transitions. [2022-11-20 12:17:24,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 505 transitions. [2022-11-20 12:17:24,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:24,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 505 transitions. [2022-11-20 12:17:24,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,332 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 348 flow. Second operand 3 states and 505 transitions. [2022-11-20 12:17:24,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 170 transitions, 382 flow [2022-11-20 12:17:24,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 170 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:24,336 INFO L231 Difference]: Finished difference. Result has 172 places, 168 transitions, 344 flow [2022-11-20 12:17:24,337 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=172, PETRI_TRANSITIONS=168} [2022-11-20 12:17:24,337 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -18 predicate places. [2022-11-20 12:17:24,337 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 168 transitions, 344 flow [2022-11-20 12:17:24,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,338 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:24,338 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] [2022-11-20 12:17:24,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:17:24,339 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:24,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:24,339 INFO L85 PathProgramCache]: Analyzing trace with hash 430848325, now seen corresponding path program 1 times [2022-11-20 12:17:24,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:24,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416204695] [2022-11-20 12:17:24,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:24,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:24,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:24,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416204695] [2022-11-20 12:17:24,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416204695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:24,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:24,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:24,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618768919] [2022-11-20 12:17:24,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:24,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:24,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:24,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:24,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:24,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-20 12:17:24,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 168 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:24,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-20 12:17:24,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:24,492 INFO L130 PetriNetUnfolder]: 49/491 cut-off events. [2022-11-20 12:17:24,492 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:24,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 491 events. 49/491 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2325 event pairs, 14 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 581. Up to 41 conditions per place. [2022-11-20 12:17:24,498 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 3 changer transitions 0/168 dead transitions. [2022-11-20 12:17:24,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 374 flow [2022-11-20 12:17:24,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:24,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:24,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-20 12:17:24,501 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-20 12:17:24,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-20 12:17:24,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-20 12:17:24,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:24,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-20 12:17:24,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,505 INFO L175 Difference]: Start difference. First operand has 172 places, 168 transitions, 344 flow. Second operand 3 states and 512 transitions. [2022-11-20 12:17:24,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 374 flow [2022-11-20 12:17:24,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 168 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:24,509 INFO L231 Difference]: Finished difference. Result has 170 places, 166 transitions, 342 flow [2022-11-20 12:17:24,510 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=170, PETRI_TRANSITIONS=166} [2022-11-20 12:17:24,511 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -20 predicate places. [2022-11-20 12:17:24,511 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 166 transitions, 342 flow [2022-11-20 12:17:24,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,511 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:24,512 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:24,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:17:24,512 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:24,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:24,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1728395284, now seen corresponding path program 1 times [2022-11-20 12:17:24,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:24,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055148212] [2022-11-20 12:17:24,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:24,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:24,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:24,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055148212] [2022-11-20 12:17:24,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055148212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:24,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:24,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:24,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74857165] [2022-11-20 12:17:24,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:24,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:24,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:24,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:24,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:24,593 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-20 12:17:24,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 166 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:24,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-20 12:17:24,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:24,709 INFO L130 PetriNetUnfolder]: 47/481 cut-off events. [2022-11-20 12:17:24,709 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:24,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 481 events. 47/481 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1916 event pairs, 14 based on Foata normal form. 0/425 useless extension candidates. Maximal degree in co-relation 573. Up to 41 conditions per place. [2022-11-20 12:17:24,716 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 13 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-11-20 12:17:24,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 166 transitions, 372 flow [2022-11-20 12:17:24,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:24,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:24,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-20 12:17:24,719 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-20 12:17:24,719 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-20 12:17:24,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-20 12:17:24,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:24,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-20 12:17:24,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,725 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,725 INFO L175 Difference]: Start difference. First operand has 170 places, 166 transitions, 342 flow. Second operand 3 states and 512 transitions. [2022-11-20 12:17:24,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 166 transitions, 372 flow [2022-11-20 12:17:24,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 166 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:24,729 INFO L231 Difference]: Finished difference. Result has 168 places, 164 transitions, 336 flow [2022-11-20 12:17:24,731 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=168, PETRI_TRANSITIONS=164} [2022-11-20 12:17:24,732 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -22 predicate places. [2022-11-20 12:17:24,732 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 164 transitions, 336 flow [2022-11-20 12:17:24,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,733 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:24,733 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:24,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:17:24,736 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:24,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:24,736 INFO L85 PathProgramCache]: Analyzing trace with hash -215926811, now seen corresponding path program 1 times [2022-11-20 12:17:24,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:24,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063722309] [2022-11-20 12:17:24,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:24,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:24,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:24,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:24,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063722309] [2022-11-20 12:17:24,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063722309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:24,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:24,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:24,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719427934] [2022-11-20 12:17:24,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:24,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:24,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:24,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:24,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:24,804 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-20 12:17:24,805 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 164 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:24,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-20 12:17:24,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:24,879 INFO L130 PetriNetUnfolder]: 18/278 cut-off events. [2022-11-20 12:17:24,879 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:24,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 278 events. 18/278 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 970 event pairs, 9 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 327. Up to 34 conditions per place. [2022-11-20 12:17:24,884 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-20 12:17:24,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 164 transitions, 370 flow [2022-11-20 12:17:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:24,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:24,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2022-11-20 12:17:24,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8601036269430051 [2022-11-20 12:17:24,887 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 498 transitions. [2022-11-20 12:17:24,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 498 transitions. [2022-11-20 12:17:24,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:24,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 498 transitions. [2022-11-20 12:17:24,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,892 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,892 INFO L175 Difference]: Start difference. First operand has 168 places, 164 transitions, 336 flow. Second operand 3 states and 498 transitions. [2022-11-20 12:17:24,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 164 transitions, 370 flow [2022-11-20 12:17:24,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 164 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:24,902 INFO L231 Difference]: Finished difference. Result has 167 places, 163 transitions, 334 flow [2022-11-20 12:17:24,903 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=167, PETRI_TRANSITIONS=163} [2022-11-20 12:17:24,904 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-20 12:17:24,904 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 163 transitions, 334 flow [2022-11-20 12:17:24,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,905 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:24,905 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] [2022-11-20 12:17:24,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:17:24,905 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:24,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:24,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1939820954, now seen corresponding path program 1 times [2022-11-20 12:17:24,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:24,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443515632] [2022-11-20 12:17:24,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:24,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:24,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:24,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:24,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443515632] [2022-11-20 12:17:24,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443515632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:24,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:24,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:24,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534268976] [2022-11-20 12:17:24,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:24,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:24,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:24,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:24,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:24,968 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-20 12:17:24,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 163 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:24,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:24,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-20 12:17:24,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:25,080 INFO L130 PetriNetUnfolder]: 45/451 cut-off events. [2022-11-20 12:17:25,080 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:25,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 451 events. 45/451 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2261 event pairs, 26 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 535. Up to 59 conditions per place. [2022-11-20 12:17:25,085 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-20 12:17:25,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 368 flow [2022-11-20 12:17:25,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:25,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:25,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-20 12:17:25,088 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-20 12:17:25,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-20 12:17:25,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-20 12:17:25,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:25,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-20 12:17:25,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,092 INFO L175 Difference]: Start difference. First operand has 167 places, 163 transitions, 334 flow. Second operand 3 states and 512 transitions. [2022-11-20 12:17:25,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 368 flow [2022-11-20 12:17:25,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:25,096 INFO L231 Difference]: Finished difference. Result has 166 places, 162 transitions, 332 flow [2022-11-20 12:17:25,096 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=166, PETRI_TRANSITIONS=162} [2022-11-20 12:17:25,098 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -24 predicate places. [2022-11-20 12:17:25,098 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 162 transitions, 332 flow [2022-11-20 12:17:25,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:25,099 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] [2022-11-20 12:17:25,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:17:25,099 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:25,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:25,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1602304185, now seen corresponding path program 1 times [2022-11-20 12:17:25,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:25,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878805974] [2022-11-20 12:17:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:25,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:25,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:25,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878805974] [2022-11-20 12:17:25,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878805974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:25,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:25,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:17:25,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412472003] [2022-11-20 12:17:25,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:25,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:25,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:25,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:25,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:25,212 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 193 [2022-11-20 12:17:25,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 162 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:25,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 193 [2022-11-20 12:17:25,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:25,328 INFO L130 PetriNetUnfolder]: 41/577 cut-off events. [2022-11-20 12:17:25,328 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:25,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 577 events. 41/577 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2593 event pairs, 14 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 670. Up to 37 conditions per place. [2022-11-20 12:17:25,336 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2022-11-20 12:17:25,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 167 transitions, 376 flow [2022-11-20 12:17:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:25,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:25,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2022-11-20 12:17:25,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9015544041450777 [2022-11-20 12:17:25,339 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2022-11-20 12:17:25,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2022-11-20 12:17:25,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:25,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2022-11-20 12:17:25,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,344 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,344 INFO L175 Difference]: Start difference. First operand has 166 places, 162 transitions, 332 flow. Second operand 3 states and 522 transitions. [2022-11-20 12:17:25,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 167 transitions, 376 flow [2022-11-20 12:17:25,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 167 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:25,349 INFO L231 Difference]: Finished difference. Result has 167 places, 163 transitions, 340 flow [2022-11-20 12:17:25,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=167, PETRI_TRANSITIONS=163} [2022-11-20 12:17:25,351 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-20 12:17:25,351 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 163 transitions, 340 flow [2022-11-20 12:17:25,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,352 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:25,352 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] [2022-11-20 12:17:25,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:17:25,353 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:25,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:25,353 INFO L85 PathProgramCache]: Analyzing trace with hash -596713196, now seen corresponding path program 1 times [2022-11-20 12:17:25,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:25,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723502911] [2022-11-20 12:17:25,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:25,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:25,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:25,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723502911] [2022-11-20 12:17:25,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723502911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:25,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:25,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:25,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96412641] [2022-11-20 12:17:25,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:25,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:25,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:25,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:25,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:25,405 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-20 12:17:25,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 163 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:25,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-20 12:17:25,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:25,536 INFO L130 PetriNetUnfolder]: 73/603 cut-off events. [2022-11-20 12:17:25,536 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:17:25,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 603 events. 73/603 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2986 event pairs, 46 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 756. Up to 99 conditions per place. [2022-11-20 12:17:25,544 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-20 12:17:25,544 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 376 flow [2022-11-20 12:17:25,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:25,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:25,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-20 12:17:25,546 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-20 12:17:25,547 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-20 12:17:25,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-20 12:17:25,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:25,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-20 12:17:25,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,551 INFO L175 Difference]: Start difference. First operand has 167 places, 163 transitions, 340 flow. Second operand 3 states and 504 transitions. [2022-11-20 12:17:25,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 376 flow [2022-11-20 12:17:25,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 164 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:17:25,555 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 340 flow [2022-11-20 12:17:25,556 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2022-11-20 12:17:25,557 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-20 12:17:25,557 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 340 flow [2022-11-20 12:17:25,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,559 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:25,559 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] [2022-11-20 12:17:25,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:17:25,559 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:25,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:25,560 INFO L85 PathProgramCache]: Analyzing trace with hash 187265853, now seen corresponding path program 1 times [2022-11-20 12:17:25,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:25,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780462901] [2022-11-20 12:17:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:25,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:25,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:25,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:25,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780462901] [2022-11-20 12:17:25,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780462901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:25,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:25,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:25,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871064495] [2022-11-20 12:17:25,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:25,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:25,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:25,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:25,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:25,627 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 193 [2022-11-20 12:17:25,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:25,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 193 [2022-11-20 12:17:25,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:25,751 INFO L130 PetriNetUnfolder]: 61/583 cut-off events. [2022-11-20 12:17:25,751 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:25,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 583 events. 61/583 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2565 event pairs, 18 based on Foata normal form. 0/543 useless extension candidates. Maximal degree in co-relation 708. Up to 51 conditions per place. [2022-11-20 12:17:25,758 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-20 12:17:25,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 370 flow [2022-11-20 12:17:25,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:25,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:25,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2022-11-20 12:17:25,761 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8946459412780656 [2022-11-20 12:17:25,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 518 transitions. [2022-11-20 12:17:25,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 518 transitions. [2022-11-20 12:17:25,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:25,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 518 transitions. [2022-11-20 12:17:25,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,766 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,766 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 340 flow. Second operand 3 states and 518 transitions. [2022-11-20 12:17:25,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 370 flow [2022-11-20 12:17:25,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:25,772 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 344 flow [2022-11-20 12:17:25,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2022-11-20 12:17:25,774 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-20 12:17:25,774 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 344 flow [2022-11-20 12:17:25,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,775 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:25,775 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] [2022-11-20 12:17:25,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:17:25,776 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:25,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:25,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1490312150, now seen corresponding path program 1 times [2022-11-20 12:17:25,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:25,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484995883] [2022-11-20 12:17:25,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:25,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:25,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:25,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484995883] [2022-11-20 12:17:25,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484995883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:25,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:25,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:25,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400632397] [2022-11-20 12:17:25,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:25,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:25,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:25,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:25,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:25,846 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-20 12:17:25,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:25,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:25,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-20 12:17:25,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:25,989 INFO L130 PetriNetUnfolder]: 81/595 cut-off events. [2022-11-20 12:17:25,989 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-20 12:17:25,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 595 events. 81/595 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2997 event pairs, 54 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 780. Up to 115 conditions per place. [2022-11-20 12:17:25,997 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2022-11-20 12:17:25,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 163 transitions, 380 flow [2022-11-20 12:17:25,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:25,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-20 12:17:25,999 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-20 12:17:26,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-20 12:17:26,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-20 12:17:26,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:26,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-20 12:17:26,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,005 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,006 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 344 flow. Second operand 3 states and 504 transitions. [2022-11-20 12:17:26,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 163 transitions, 380 flow [2022-11-20 12:17:26,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 163 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:17:26,011 INFO L231 Difference]: Finished difference. Result has 167 places, 161 transitions, 344 flow [2022-11-20 12:17:26,012 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=167, PETRI_TRANSITIONS=161} [2022-11-20 12:17:26,013 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-20 12:17:26,013 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 161 transitions, 344 flow [2022-11-20 12:17:26,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,014 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:26,014 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] [2022-11-20 12:17:26,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:17:26,014 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:26,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:26,015 INFO L85 PathProgramCache]: Analyzing trace with hash -91697017, now seen corresponding path program 1 times [2022-11-20 12:17:26,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:26,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70167037] [2022-11-20 12:17:26,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:26,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:26,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:26,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70167037] [2022-11-20 12:17:26,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70167037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:26,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:26,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:17:26,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216488831] [2022-11-20 12:17:26,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:26,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:26,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:26,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:26,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:26,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 193 [2022-11-20 12:17:26,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 161 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:26,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 193 [2022-11-20 12:17:26,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:26,253 INFO L130 PetriNetUnfolder]: 73/583 cut-off events. [2022-11-20 12:17:26,253 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:26,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 583 events. 73/583 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2779 event pairs, 54 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 764. Up to 115 conditions per place. [2022-11-20 12:17:26,259 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 17 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2022-11-20 12:17:26,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 162 transitions, 384 flow [2022-11-20 12:17:26,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:26,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2022-11-20 12:17:26,262 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8583765112262521 [2022-11-20 12:17:26,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 497 transitions. [2022-11-20 12:17:26,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 497 transitions. [2022-11-20 12:17:26,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:26,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 497 transitions. [2022-11-20 12:17:26,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,266 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,267 INFO L175 Difference]: Start difference. First operand has 167 places, 161 transitions, 344 flow. Second operand 3 states and 497 transitions. [2022-11-20 12:17:26,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 162 transitions, 384 flow [2022-11-20 12:17:26,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 162 transitions, 380 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:26,271 INFO L231 Difference]: Finished difference. Result has 166 places, 160 transitions, 342 flow [2022-11-20 12:17:26,272 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=166, PETRI_TRANSITIONS=160} [2022-11-20 12:17:26,274 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -24 predicate places. [2022-11-20 12:17:26,274 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 160 transitions, 342 flow [2022-11-20 12:17:26,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,275 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:26,275 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:26,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:17:26,275 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:26,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:26,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1186677298, now seen corresponding path program 1 times [2022-11-20 12:17:26,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:26,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604224654] [2022-11-20 12:17:26,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:26,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:26,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:26,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:26,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604224654] [2022-11-20 12:17:26,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604224654] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:17:26,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066044390] [2022-11-20 12:17:26,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:26,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:17:26,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:17:26,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:17:26,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:17:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:26,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:17:26,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:26,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:17:26,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:26,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066044390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:26,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:17:26,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-20 12:17:26,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829165339] [2022-11-20 12:17:26,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:26,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:26,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:26,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:26,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:17:26,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-20 12:17:26,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 160 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:26,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-20 12:17:26,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:26,777 INFO L130 PetriNetUnfolder]: 36/496 cut-off events. [2022-11-20 12:17:26,777 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:17:26,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 496 events. 36/496 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1865 event pairs, 1 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 574. Up to 31 conditions per place. [2022-11-20 12:17:26,786 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 9 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2022-11-20 12:17:26,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 376 flow [2022-11-20 12:17:26,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:26,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2022-11-20 12:17:26,789 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9101899827288429 [2022-11-20 12:17:26,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 527 transitions. [2022-11-20 12:17:26,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions. [2022-11-20 12:17:26,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:26,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions. [2022-11-20 12:17:26,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,794 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,794 INFO L175 Difference]: Start difference. First operand has 166 places, 160 transitions, 342 flow. Second operand 3 states and 527 transitions. [2022-11-20 12:17:26,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 376 flow [2022-11-20 12:17:26,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:26,799 INFO L231 Difference]: Finished difference. Result has 168 places, 164 transitions, 372 flow [2022-11-20 12:17:26,799 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=168, PETRI_TRANSITIONS=164} [2022-11-20 12:17:26,800 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -22 predicate places. [2022-11-20 12:17:26,800 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 164 transitions, 372 flow [2022-11-20 12:17:26,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:26,801 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:26,801 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:26,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:27,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 12:17:27,009 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:27,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:27,010 INFO L85 PathProgramCache]: Analyzing trace with hash -359410964, now seen corresponding path program 1 times [2022-11-20 12:17:27,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:27,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649954272] [2022-11-20 12:17:27,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:27,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:27,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:27,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649954272] [2022-11-20 12:17:27,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649954272] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:17:27,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413482500] [2022-11-20 12:17:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:27,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:17:27,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:17:27,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:17:27,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:17:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:27,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:17:27,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:17:27,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:27,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413482500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:27,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:17:27,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-20 12:17:27,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997258198] [2022-11-20 12:17:27,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:27,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:27,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:27,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:27,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:17:27,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-20 12:17:27,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 164 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:27,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:27,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-20 12:17:27,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:27,573 INFO L130 PetriNetUnfolder]: 78/616 cut-off events. [2022-11-20 12:17:27,573 INFO L131 PetriNetUnfolder]: For 138/151 co-relation queries the response was YES. [2022-11-20 12:17:27,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 616 events. 78/616 cut-off events. For 138/151 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2825 event pairs, 0 based on Foata normal form. 8/579 useless extension candidates. Maximal degree in co-relation 880. Up to 59 conditions per place. [2022-11-20 12:17:27,584 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 6 changer transitions 0/171 dead transitions. [2022-11-20 12:17:27,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 171 transitions, 436 flow [2022-11-20 12:17:27,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:27,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:17:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2022-11-20 12:17:27,587 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9119170984455959 [2022-11-20 12:17:27,587 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2022-11-20 12:17:27,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2022-11-20 12:17:27,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:27,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2022-11-20 12:17:27,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:27,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:27,592 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:27,593 INFO L175 Difference]: Start difference. First operand has 168 places, 164 transitions, 372 flow. Second operand 3 states and 528 transitions. [2022-11-20 12:17:27,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 171 transitions, 436 flow [2022-11-20 12:17:27,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 171 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:27,602 INFO L231 Difference]: Finished difference. Result has 170 places, 170 transitions, 422 flow [2022-11-20 12:17:27,602 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=170, PETRI_TRANSITIONS=170} [2022-11-20 12:17:27,603 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -20 predicate places. [2022-11-20 12:17:27,604 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 170 transitions, 422 flow [2022-11-20 12:17:27,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:27,605 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:27,605 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:27,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:27,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:17:27,812 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:27,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:27,813 INFO L85 PathProgramCache]: Analyzing trace with hash -598637021, now seen corresponding path program 1 times [2022-11-20 12:17:27,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:27,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704832993] [2022-11-20 12:17:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:27,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:27,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:27,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704832993] [2022-11-20 12:17:27,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704832993] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:17:27,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426872679] [2022-11-20 12:17:27,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:27,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:17:27,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:17:27,931 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:17:27,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:17:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:28,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:17:28,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:28,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:17:28,345 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:28,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426872679] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:17:28,346 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:17:28,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 12:17:28,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007065999] [2022-11-20 12:17:28,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:17:28,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:17:28,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:28,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:17:28,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:17:28,352 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-20 12:17:28,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 170 transitions, 422 flow. Second operand has 10 states, 10 states have (on average 168.3) internal successors, (1683), 10 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:28,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:28,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-20 12:17:28,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:28,812 INFO L130 PetriNetUnfolder]: 232/1316 cut-off events. [2022-11-20 12:17:28,813 INFO L131 PetriNetUnfolder]: For 997/1025 co-relation queries the response was YES. [2022-11-20 12:17:28,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2320 conditions, 1316 events. 232/1316 cut-off events. For 997/1025 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6533 event pairs, 13 based on Foata normal form. 16/1275 useless extension candidates. Maximal degree in co-relation 2312. Up to 133 conditions per place. [2022-11-20 12:17:28,832 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 62 selfloop transitions, 9 changer transitions 0/220 dead transitions. [2022-11-20 12:17:28,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 220 transitions, 876 flow [2022-11-20 12:17:28,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:17:28,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 12:17:28,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1533 transitions. [2022-11-20 12:17:28,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8825561312607945 [2022-11-20 12:17:28,838 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1533 transitions. [2022-11-20 12:17:28,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1533 transitions. [2022-11-20 12:17:28,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:28,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1533 transitions. [2022-11-20 12:17:28,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 170.33333333333334) internal successors, (1533), 9 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:28,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:28,861 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:28,862 INFO L175 Difference]: Start difference. First operand has 170 places, 170 transitions, 422 flow. Second operand 9 states and 1533 transitions. [2022-11-20 12:17:28,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 220 transitions, 876 flow [2022-11-20 12:17:28,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 220 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:17:28,870 INFO L231 Difference]: Finished difference. Result has 179 places, 176 transitions, 460 flow [2022-11-20 12:17:28,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=460, PETRI_PLACES=179, PETRI_TRANSITIONS=176} [2022-11-20 12:17:28,871 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, -11 predicate places. [2022-11-20 12:17:28,871 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 176 transitions, 460 flow [2022-11-20 12:17:28,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.3) internal successors, (1683), 10 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:28,873 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:28,873 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:28,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 12:17:29,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:17:29,081 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:29,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:29,082 INFO L85 PathProgramCache]: Analyzing trace with hash 327415809, now seen corresponding path program 2 times [2022-11-20 12:17:29,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:29,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72888970] [2022-11-20 12:17:29,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:29,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:29,391 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:29,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:29,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72888970] [2022-11-20 12:17:29,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72888970] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:17:29,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115330871] [2022-11-20 12:17:29,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:17:29,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:17:29,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:17:29,395 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:17:29,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:17:29,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:17:29,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:17:29,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:17:29,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:29,794 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:29,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:17:30,120 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:30,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115330871] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:17:30,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:17:30,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 12:17:30,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335511964] [2022-11-20 12:17:30,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:17:30,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:17:30,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:30,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:17:30,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:17:30,127 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-20 12:17:30,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 176 transitions, 460 flow. Second operand has 18 states, 18 states have (on average 168.16666666666666) internal successors, (3027), 18 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:30,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:30,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-20 12:17:30,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:31,103 INFO L130 PetriNetUnfolder]: 392/2176 cut-off events. [2022-11-20 12:17:31,104 INFO L131 PetriNetUnfolder]: For 1508/1536 co-relation queries the response was YES. [2022-11-20 12:17:31,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3892 conditions, 2176 events. 392/2176 cut-off events. For 1508/1536 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 10625 event pairs, 13 based on Foata normal form. 26/2143 useless extension candidates. Maximal degree in co-relation 3882. Up to 213 conditions per place. [2022-11-20 12:17:31,127 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 138 selfloop transitions, 21 changer transitions 0/308 dead transitions. [2022-11-20 12:17:31,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 308 transitions, 1558 flow [2022-11-20 12:17:31,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 12:17:31,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 12:17:31,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3567 transitions. [2022-11-20 12:17:31,136 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8800888230940045 [2022-11-20 12:17:31,136 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3567 transitions. [2022-11-20 12:17:31,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3567 transitions. [2022-11-20 12:17:31,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:31,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3567 transitions. [2022-11-20 12:17:31,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 169.85714285714286) internal successors, (3567), 21 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:31,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 193.0) internal successors, (4246), 22 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:31,156 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 193.0) internal successors, (4246), 22 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:31,156 INFO L175 Difference]: Start difference. First operand has 179 places, 176 transitions, 460 flow. Second operand 21 states and 3567 transitions. [2022-11-20 12:17:31,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 308 transitions, 1558 flow [2022-11-20 12:17:31,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 308 transitions, 1544 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-11-20 12:17:31,165 INFO L231 Difference]: Finished difference. Result has 203 places, 189 transitions, 584 flow [2022-11-20 12:17:31,166 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=584, PETRI_PLACES=203, PETRI_TRANSITIONS=189} [2022-11-20 12:17:31,166 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, 13 predicate places. [2022-11-20 12:17:31,166 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 189 transitions, 584 flow [2022-11-20 12:17:31,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 168.16666666666666) internal successors, (3027), 18 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:31,168 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:31,168 INFO L209 CegarLoopForPetriNet]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:31,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:31,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-20 12:17:31,374 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:31,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:31,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1096529341, now seen corresponding path program 3 times [2022-11-20 12:17:31,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:31,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885060065] [2022-11-20 12:17:31,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:31,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:32,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:17:32,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885060065] [2022-11-20 12:17:32,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885060065] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:17:32,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748467480] [2022-11-20 12:17:32,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:17:32,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:17:32,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:17:32,092 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:17:32,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:17:32,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-20 12:17:32,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:17:32,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 12:17:32,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:32,779 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:32,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:17:33,532 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:33,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748467480] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:17:33,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:17:33,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 27 [2022-11-20 12:17:33,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403195141] [2022-11-20 12:17:33,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:17:33,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 12:17:33,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:17:33,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 12:17:33,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2022-11-20 12:17:33,545 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-20 12:17:33,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 189 transitions, 584 flow. Second operand has 27 states, 27 states have (on average 168.1851851851852) internal successors, (4541), 27 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:33,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:17:33,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-20 12:17:33,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:17:35,581 INFO L130 PetriNetUnfolder]: 592/3251 cut-off events. [2022-11-20 12:17:35,581 INFO L131 PetriNetUnfolder]: For 3511/3539 co-relation queries the response was YES. [2022-11-20 12:17:35,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6168 conditions, 3251 events. 592/3251 cut-off events. For 3511/3539 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 15623 event pairs, 13 based on Foata normal form. 31/3223 useless extension candidates. Maximal degree in co-relation 6153. Up to 313 conditions per place. [2022-11-20 12:17:35,643 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 233 selfloop transitions, 36 changer transitions 0/418 dead transitions. [2022-11-20 12:17:35,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 418 transitions, 2538 flow [2022-11-20 12:17:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-20 12:17:35,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-20 12:17:35,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 6108 transitions. [2022-11-20 12:17:35,658 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8791018998272885 [2022-11-20 12:17:35,659 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 6108 transitions. [2022-11-20 12:17:35,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 6108 transitions. [2022-11-20 12:17:35,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:17:35,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 6108 transitions. [2022-11-20 12:17:35,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 169.66666666666666) internal successors, (6108), 36 states have internal predecessors, (6108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:35,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 193.0) internal successors, (7141), 37 states have internal predecessors, (7141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:35,694 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 193.0) internal successors, (7141), 37 states have internal predecessors, (7141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:35,695 INFO L175 Difference]: Start difference. First operand has 203 places, 189 transitions, 584 flow. Second operand 36 states and 6108 transitions. [2022-11-20 12:17:35,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 418 transitions, 2538 flow [2022-11-20 12:17:35,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 418 transitions, 2504 flow, removed 11 selfloop flow, removed 6 redundant places. [2022-11-20 12:17:35,710 INFO L231 Difference]: Finished difference. Result has 238 places, 205 transitions, 772 flow [2022-11-20 12:17:35,710 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=772, PETRI_PLACES=238, PETRI_TRANSITIONS=205} [2022-11-20 12:17:35,711 INFO L288 CegarLoopForPetriNet]: 190 programPoint places, 48 predicate places. [2022-11-20 12:17:35,711 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 205 transitions, 772 flow [2022-11-20 12:17:35,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 168.1851851851852) internal successors, (4541), 27 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:17:35,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:17:35,714 INFO L209 CegarLoopForPetriNet]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:35,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:35,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:17:35,921 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-20 12:17:35,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:35,921 INFO L85 PathProgramCache]: Analyzing trace with hash 409377946, now seen corresponding path program 4 times [2022-11-20 12:17:35,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:17:35,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944941262] [2022-11-20 12:17:35,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:35,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:17:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:17:36,033 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:17:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:17:36,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:17:36,461 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:17:36,463 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-20 12:17:36,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-20 12:17:36,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-20 12:17:36,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-20 12:17:36,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-20 12:17:36,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-20 12:17:36,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-20 12:17:36,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-20 12:17:36,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-20 12:17:36,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-20 12:17:36,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-20 12:17:36,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-20 12:17:36,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-20 12:17:36,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-20 12:17:36,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-20 12:17:36,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-20 12:17:36,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-11-20 12:17:36,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-11-20 12:17:36,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-20 12:17:36,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-20 12:17:36,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-20 12:17:36,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-20 12:17:36,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-20 12:17:36,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-20 12:17:36,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-20 12:17:36,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-11-20 12:17:36,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-11-20 12:17:36,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-20 12:17:36,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-20 12:17:36,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-20 12:17:36,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-20 12:17:36,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-20 12:17:36,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-20 12:17:36,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-20 12:17:36,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-20 12:17:36,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-20 12:17:36,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-20 12:17:36,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-20 12:17:36,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-20 12:17:36,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-20 12:17:36,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-20 12:17:36,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-20 12:17:36,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-20 12:17:36,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-20 12:17:36,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-20 12:17:36,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-20 12:17:36,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 12:17:36,477 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:36,487 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:17:36,487 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:17:36,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:17:36 BasicIcfg [2022-11-20 12:17:36,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:17:36,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:17:36,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:17:36,792 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:17:36,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:17:21" (3/4) ... [2022-11-20 12:17:36,796 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:17:36,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:17:36,797 INFO L158 Benchmark]: Toolchain (without parser) took 17298.14ms. Allocated memory was 117.4MB in the beginning and 329.3MB in the end (delta: 211.8MB). Free memory was 50.3MB in the beginning and 133.2MB in the end (delta: -82.9MB). Peak memory consumption was 129.5MB. Max. memory is 16.1GB. [2022-11-20 12:17:36,797 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:17:36,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 758.74ms. Allocated memory was 117.4MB in the beginning and 169.9MB in the end (delta: 52.4MB). Free memory was 50.1MB in the beginning and 128.2MB in the end (delta: -78.1MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-11-20 12:17:36,798 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.98ms. Allocated memory is still 169.9MB. Free memory was 128.2MB in the beginning and 126.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:17:36,799 INFO L158 Benchmark]: Boogie Preprocessor took 76.20ms. Allocated memory is still 169.9MB. Free memory was 126.1MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:17:36,799 INFO L158 Benchmark]: RCFGBuilder took 1005.48ms. Allocated memory is still 169.9MB. Free memory was 123.9MB in the beginning and 130.3MB in the end (delta: -6.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 12:17:36,800 INFO L158 Benchmark]: TraceAbstraction took 15369.78ms. Allocated memory was 169.9MB in the beginning and 329.3MB in the end (delta: 159.4MB). Free memory was 129.5MB in the beginning and 133.2MB in the end (delta: -3.6MB). Peak memory consumption was 157.4MB. Max. memory is 16.1GB. [2022-11-20 12:17:36,800 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 329.3MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:17:36,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 758.74ms. Allocated memory was 117.4MB in the beginning and 169.9MB in the end (delta: 52.4MB). Free memory was 50.1MB in the beginning and 128.2MB in the end (delta: -78.1MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.98ms. Allocated memory is still 169.9MB. Free memory was 128.2MB in the beginning and 126.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.20ms. Allocated memory is still 169.9MB. Free memory was 126.1MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1005.48ms. Allocated memory is still 169.9MB. Free memory was 123.9MB in the beginning and 130.3MB in the end (delta: -6.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15369.78ms. Allocated memory was 169.9MB in the beginning and 329.3MB in the end (delta: 159.4MB). Free memory was 129.5MB in the beginning and 133.2MB in the end (delta: -3.6MB). Peak memory consumption was 157.4MB. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 329.3MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 725]: Data race detected Data race detected The following path leads to a data race: [L683] 0 int i, j; VAL [i=0, j=0] [L686] 0 int p, q; VAL [i=0, j=0, p=0, q=0] [L703] 0 int cur = 1, prev = 0, next = 0; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0] [L704] 0 int x; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0, x=0] [L714] 0 pthread_t id1, id2; VAL [\old(argc)=277, argc=277, argv={266:236}, argv={266:236}, cur=1, i=0, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L716] 0 i = 1 VAL [\old(argc)=277, argc=277, argv={266:236}, argv={266:236}, cur=1, i=1, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L719] 0 j = 1 VAL [\old(argc)=277, argc=277, argv={266:236}, argv={266:236}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L721] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=277, arg={0:0}, argc=277, argv={266:236}, argv={266:236}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=-1, q=0, x=0] [L722] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=277, arg={0:0}, arg={0:0}, argc=277, argv={266:236}, argv={266:236}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=0, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=0, q=0, x=0] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=0] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=0] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=3, p=0, prev=1, q=0, x=2] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=3, p=0, prev=2, q=0, x=2] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=2] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=5, p=0, prev=2, q=0, x=3] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=5, p=0, prev=3, q=0, x=3] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=3] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=8, p=0, prev=3, q=0, x=4] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=8, p=0, prev=5, q=0, x=4] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=4] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=13, p=0, prev=5, q=0, x=5] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=13, p=0, prev=8, q=0, x=5] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=5] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=21, p=0, prev=8, q=0, x=6] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=21, p=0, prev=13, q=0, x=6] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=6] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=34, p=0, prev=13, q=0, x=7] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=34, p=0, prev=21, q=0, x=7] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=7] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=55, p=0, prev=21, q=0, x=8] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=55, p=0, prev=34, q=0, x=8] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=8] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=89, p=0, prev=34, q=0, x=9] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=89, p=0, prev=55, q=0, x=9] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=9] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=144, p=0, prev=55, q=0, x=10] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=144, p=0, prev=89, q=0, x=10] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=10] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] COND TRUE 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=233, p=0, prev=89, q=0, x=11] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=233, p=0, prev=144, q=0, x=11] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=11] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 12 VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] COND FALSE 0 !(x < 12) VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L688] 1 p = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L688] 1 p < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L688] COND TRUE 1 p < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L711] 0 return prev; VAL [\result=144, arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); VAL [\old(argc)=277, arg={0:0}, arg={0:0}, arg={0:0}, argc=277, argv={266:236}, argv={266:236}, correct=144, cur=233, fib()=144, i=1, id1={5:0}, id2={3:0}, j=1, next=233, p=0, prev=144, q=0, x=12] [L725] 0 i <= correct VAL [\old(argc)=277, arg={0:0}, arg={0:0}, arg={0:0}, argc=277, argv={266:236}, argv={266:236}, correct=144, cur=233, i=1, id1={5:0}, id2={3:0}, j=1, next=233, p=0, prev=144, q=0, x=12] [L690] EXPR 1 i + j [L690] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=2, j=1, next=233, p=0, prev=144, q=0, x=12] [L725] 0 i <= correct VAL [\old(argc)=277, arg={0:0}, arg={0:0}, arg={0:0}, argc=277, argv={266:236}, argv={266:236}, correct=144, cur=233, i=2, id1={5:0}, id2={3:0}, j=1, next=233, p=0, prev=144, q=0, x=12] Now there is a data race on ~i~0 between C: i = i + j [690] and C: i <= correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 46 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.8s, OverallIterations: 23, TraceHistogramMax: 13, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 559 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 559 mSDsluCounter, 199 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 698 IncrementalHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 147 mSDtfsCounter, 698 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1497 GetRequests, 1379 SyntacticMatches, 7 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 798 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=772occurred in iteration=22, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 2990 NumberOfCodeBlocks, 2990 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3067 ConstructedInterpolants, 0 QuantifiedInterpolants, 5719 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1624 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 30 InterpolantComputations, 19 PerfectInterpolantSequences, 6/2631 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-20 12:17:37,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8493d7-7f50-4e90-aeb0-6a442c418321/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE