./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/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_84491664-3660-4357-8c1f-5d65c1354bbb/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/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_84491664-3660-4357-8c1f-5d65c1354bbb/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 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --- 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 11:59:48,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:59:48,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:59:48,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:59:48,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:59:48,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:59:48,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:59:48,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:59:48,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:59:48,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:59:48,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:59:48,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:59:48,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:59:48,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:59:48,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:59:48,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:59:48,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:59:48,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:59:48,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:59:48,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:59:48,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:59:48,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:59:48,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:59:48,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:59:48,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:59:48,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:59:48,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:59:48,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:59:48,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:59:48,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:59:48,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:59:48,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:59:48,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:59:48,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:59:48,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:59:48,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:59:48,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:59:48,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:59:48,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:59:48,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:59:48,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:59:48,669 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:59:48,724 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:59:48,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:59:48,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:59:48,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:59:48,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:59:48,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:59:48,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:59:48,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:59:48,730 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:59:48,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:59:48,730 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:59:48,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:59:48,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:59:48,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:59:48,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:59:48,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:59:48,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:59:48,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:59:48,732 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:59:48,732 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:59:48,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:59:48,733 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:59:48,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:59:48,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:59:48,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:59:48,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:59:48,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:59:48,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:59:48,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:59:48,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:59:48,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:59:48,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:59:48,735 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:59:48,736 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:59:48,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:59:48,736 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_84491664-3660-4357-8c1f-5d65c1354bbb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 [2022-11-20 11:59:49,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:59:49,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:59:49,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:59:49,168 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:59:49,169 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:59:49,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-11-20 11:59:53,006 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:59:53,343 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:59:53,344 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-11-20 11:59:53,354 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/bin/uautomizer-ug76WZFUDN/data/a10557bf9/decc9eda62d9444b954f190cea2b77e8/FLAGfe10fbfa6 [2022-11-20 11:59:53,372 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/bin/uautomizer-ug76WZFUDN/data/a10557bf9/decc9eda62d9444b954f190cea2b77e8 [2022-11-20 11:59:53,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:59:53,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:59:53,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:59:53,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:59:53,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:59:53,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a7f9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53, skipping insertion in model container [2022-11-20 11:59:53,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:59:53,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:59:53,732 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_84491664-3660-4357-8c1f-5d65c1354bbb/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-11-20 11:59:53,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:59:53,764 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:59:53,830 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_84491664-3660-4357-8c1f-5d65c1354bbb/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-11-20 11:59:53,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:59:53,850 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:59:53,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53 WrapperNode [2022-11-20 11:59:53,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:59:53,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:59:53,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:59:53,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:59:53,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,926 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 531 [2022-11-20 11:59:53,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:59:53,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:59:53,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:59:53,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:59:53,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,971 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:59:53,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:59:53,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:59:53,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:59:53,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (1/1) ... [2022-11-20 11:59:53,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:59:54,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:59:54,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:59:54,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84491664-3660-4357-8c1f-5d65c1354bbb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:59:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:59:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:59:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:59:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:59:54,095 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:59:54,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:59:54,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:59:54,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:59:54,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:59:54,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:59:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 11:59:54,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 11:59:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:59:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-20 11:59:54,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-20 11:59:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-20 11:59:54,101 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-20 11:59:54,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:59:54,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:59:54,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:59:54,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:59:54,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:59:54,104 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 11:59:54,371 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:59:54,389 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:59:55,358 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:59:55,702 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:59:55,703 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:59:55,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:59:55 BoogieIcfgContainer [2022-11-20 11:59:55,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:59:55,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:59:55,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:59:55,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:59:55,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:59:53" (1/3) ... [2022-11-20 11:59:55,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5260b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:59:55, skipping insertion in model container [2022-11-20 11:59:55,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:59:53" (2/3) ... [2022-11-20 11:59:55,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5260b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:59:55, skipping insertion in model container [2022-11-20 11:59:55,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:59:55" (3/3) ... [2022-11-20 11:59:55,724 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2022-11-20 11:59:55,737 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:59:55,752 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:59:55,752 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-20 11:59:55,752 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:59:55,964 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-20 11:59:56,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 469 places, 464 transitions, 1000 flow [2022-11-20 11:59:56,328 INFO L130 PetriNetUnfolder]: 14/424 cut-off events. [2022-11-20 11:59:56,329 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 11:59:56,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 424 events. 14/424 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 749 event pairs, 0 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 355. Up to 3 conditions per place. [2022-11-20 11:59:56,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 469 places, 464 transitions, 1000 flow [2022-11-20 11:59:56,357 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 410 places, 403 transitions, 854 flow [2022-11-20 11:59:56,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:59:56,383 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;@57c343e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:59:56,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2022-11-20 11:59:56,392 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-20 11:59:56,393 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:59:56,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:59:56,394 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] [2022-11-20 11:59:56,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-20 11:59:56,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:56,402 INFO L85 PathProgramCache]: Analyzing trace with hash -832118063, now seen corresponding path program 1 times [2022-11-20 11:59:56,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:59:56,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718419066] [2022-11-20 11:59:56,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:56,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:59:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:56,758 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 11:59:56,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:59:56,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718419066] [2022-11-20 11:59:56,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718419066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:56,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:56,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:59:56,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533082484] [2022-11-20 11:59:56,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:56,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:59:56,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:59:56,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:59:56,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:59:56,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 468 [2022-11-20 11:59:56,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 403 transitions, 854 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states 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 11:59:56,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:59:56,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 468 [2022-11-20 11:59:56,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:00:06,588 INFO L130 PetriNetUnfolder]: 11990/19790 cut-off events. [2022-11-20 12:00:06,589 INFO L131 PetriNetUnfolder]: For 5271/6042 co-relation queries the response was YES. [2022-11-20 12:00:06,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40866 conditions, 19790 events. 11990/19790 cut-off events. For 5271/6042 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 139451 event pairs, 10899 based on Foata normal form. 82/18225 useless extension candidates. Maximal degree in co-relation 40063. Up to 16543 conditions per place. [2022-11-20 12:00:07,093 INFO L137 encePairwiseOnDemand]: 418/468 looper letters, 52 selfloop transitions, 2 changer transitions 1/355 dead transitions. [2022-11-20 12:00:07,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 355 transitions, 866 flow [2022-11-20 12:00:07,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:07,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:00:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1170 transitions. [2022-11-20 12:00:07,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-20 12:00:07,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1170 transitions. [2022-11-20 12:00:07,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1170 transitions. [2022-11-20 12:00:07,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:00:07,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1170 transitions. [2022-11-20 12:00:07,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states 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 12:00:07,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:07,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:07,148 INFO L175 Difference]: Start difference. First operand has 410 places, 403 transitions, 854 flow. Second operand 3 states and 1170 transitions. [2022-11-20 12:00:07,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 355 transitions, 866 flow [2022-11-20 12:00:07,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 355 transitions, 834 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-20 12:00:07,315 INFO L231 Difference]: Finished difference. Result has 355 places, 354 transitions, 728 flow [2022-11-20 12:00:07,318 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=728, PETRI_PLACES=355, PETRI_TRANSITIONS=354} [2022-11-20 12:00:07,326 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -55 predicate places. [2022-11-20 12:00:07,326 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 354 transitions, 728 flow [2022-11-20 12:00:07,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states 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 12:00:07,327 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:00:07,328 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] [2022-11-20 12:00:07,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:00:07,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-20 12:00:07,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:07,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1104946772, now seen corresponding path program 1 times [2022-11-20 12:00:07,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:07,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609586338] [2022-11-20 12:00:07,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:07,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:07,503 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 12:00:07,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:07,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609586338] [2022-11-20 12:00:07,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609586338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:07,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:07,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:00:07,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731620001] [2022-11-20 12:00:07,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:07,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:07,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:07,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:07,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:07,510 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 468 [2022-11-20 12:00:07,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 354 transitions, 728 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states 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 12:00:07,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:00:07,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 468 [2022-11-20 12:00:07,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:00:14,184 INFO L130 PetriNetUnfolder]: 11990/19779 cut-off events. [2022-11-20 12:00:14,185 INFO L131 PetriNetUnfolder]: For 1146/1888 co-relation queries the response was YES. [2022-11-20 12:00:14,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37477 conditions, 19779 events. 11990/19779 cut-off events. For 1146/1888 co-relation queries the response was YES. Maximal size of possible extension queue 761. Compared 139356 event pairs, 10899 based on Foata normal form. 0/18146 useless extension candidates. Maximal degree in co-relation 37437. Up to 16543 conditions per place. [2022-11-20 12:00:14,588 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 52 selfloop transitions, 2 changer transitions 0/353 dead transitions. [2022-11-20 12:00:14,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 353 transitions, 834 flow [2022-11-20 12:00:14,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:14,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:00:14,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1123 transitions. [2022-11-20 12:00:14,594 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7998575498575499 [2022-11-20 12:00:14,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1123 transitions. [2022-11-20 12:00:14,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1123 transitions. [2022-11-20 12:00:14,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:00:14,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1123 transitions. [2022-11-20 12:00:14,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states 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 12:00:14,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:14,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:14,609 INFO L175 Difference]: Start difference. First operand has 355 places, 354 transitions, 728 flow. Second operand 3 states and 1123 transitions. [2022-11-20 12:00:14,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 353 transitions, 834 flow [2022-11-20 12:00:14,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 353 transitions, 830 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:00:14,625 INFO L231 Difference]: Finished difference. Result has 353 places, 353 transitions, 726 flow [2022-11-20 12:00:14,626 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=726, PETRI_PLACES=353, PETRI_TRANSITIONS=353} [2022-11-20 12:00:14,627 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -57 predicate places. [2022-11-20 12:00:14,627 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 353 transitions, 726 flow [2022-11-20 12:00:14,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states 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 12:00:14,629 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:00:14,630 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] [2022-11-20 12:00:14,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:00:14,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-20 12:00:14,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:14,632 INFO L85 PathProgramCache]: Analyzing trace with hash -925756875, now seen corresponding path program 1 times [2022-11-20 12:00:14,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:14,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814547354] [2022-11-20 12:00:14,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:14,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:14,768 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 12:00:14,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:14,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814547354] [2022-11-20 12:00:14,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814547354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:14,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:14,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:00:14,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256007508] [2022-11-20 12:00:14,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:14,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:14,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:14,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:14,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:14,774 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 468 [2022-11-20 12:00:14,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 353 transitions, 726 flow. Second operand has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states 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 12:00:14,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:00:14,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 468 [2022-11-20 12:00:14,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:00:20,278 INFO L130 PetriNetUnfolder]: 12058/19954 cut-off events. [2022-11-20 12:00:20,278 INFO L131 PetriNetUnfolder]: For 1146/1950 co-relation queries the response was YES. [2022-11-20 12:00:20,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37776 conditions, 19954 events. 12058/19954 cut-off events. For 1146/1950 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 140808 event pairs, 10899 based on Foata normal form. 0/18289 useless extension candidates. Maximal degree in co-relation 37729. Up to 16602 conditions per place. [2022-11-20 12:00:20,624 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 46 selfloop transitions, 2 changer transitions 0/352 dead transitions. [2022-11-20 12:00:20,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 352 transitions, 820 flow [2022-11-20 12:00:20,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:00:20,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1135 transitions. [2022-11-20 12:00:20,629 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8084045584045584 [2022-11-20 12:00:20,629 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1135 transitions. [2022-11-20 12:00:20,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1135 transitions. [2022-11-20 12:00:20,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:00:20,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1135 transitions. [2022-11-20 12:00:20,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.3333333333333) internal successors, (1135), 3 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states 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 12:00:20,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:20,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:20,641 INFO L175 Difference]: Start difference. First operand has 353 places, 353 transitions, 726 flow. Second operand 3 states and 1135 transitions. [2022-11-20 12:00:20,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 352 transitions, 820 flow [2022-11-20 12:00:20,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 352 transitions, 816 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:00:20,650 INFO L231 Difference]: Finished difference. Result has 352 places, 352 transitions, 724 flow [2022-11-20 12:00:20,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=352, PETRI_TRANSITIONS=352} [2022-11-20 12:00:20,652 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -58 predicate places. [2022-11-20 12:00:20,653 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 352 transitions, 724 flow [2022-11-20 12:00:20,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states 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 12:00:20,654 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:00:20,654 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] [2022-11-20 12:00:20,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:00:20,655 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-20 12:00:20,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:20,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1992121066, now seen corresponding path program 1 times [2022-11-20 12:00:20,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:20,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774780713] [2022-11-20 12:00:20,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:20,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:20,753 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 12:00:20,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:20,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774780713] [2022-11-20 12:00:20,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774780713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:20,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:20,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:00:20,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328126763] [2022-11-20 12:00:20,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:20,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:20,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:20,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:20,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:20,761 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 468 [2022-11-20 12:00:20,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 352 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states 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 12:00:20,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:00:20,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 468 [2022-11-20 12:00:20,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:00:25,931 INFO L130 PetriNetUnfolder]: 12055/19932 cut-off events. [2022-11-20 12:00:25,931 INFO L131 PetriNetUnfolder]: For 1146/1950 co-relation queries the response was YES. [2022-11-20 12:00:26,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37754 conditions, 19932 events. 12055/19932 cut-off events. For 1146/1950 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 141240 event pairs, 10899 based on Foata normal form. 0/18275 useless extension candidates. Maximal degree in co-relation 37701. Up to 16602 conditions per place. [2022-11-20 12:00:26,284 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 46 selfloop transitions, 2 changer transitions 0/351 dead transitions. [2022-11-20 12:00:26,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 351 transitions, 818 flow [2022-11-20 12:00:26,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:26,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:00:26,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1135 transitions. [2022-11-20 12:00:26,289 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8084045584045584 [2022-11-20 12:00:26,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1135 transitions. [2022-11-20 12:00:26,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1135 transitions. [2022-11-20 12:00:26,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:00:26,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1135 transitions. [2022-11-20 12:00:26,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.3333333333333) internal successors, (1135), 3 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states 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 12:00:26,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:26,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:26,310 INFO L175 Difference]: Start difference. First operand has 352 places, 352 transitions, 724 flow. Second operand 3 states and 1135 transitions. [2022-11-20 12:00:26,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 351 transitions, 818 flow [2022-11-20 12:00:26,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 351 transitions, 814 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:00:26,318 INFO L231 Difference]: Finished difference. Result has 351 places, 351 transitions, 722 flow [2022-11-20 12:00:26,319 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=351, PETRI_TRANSITIONS=351} [2022-11-20 12:00:26,321 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -59 predicate places. [2022-11-20 12:00:26,322 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 351 transitions, 722 flow [2022-11-20 12:00:26,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states 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 12:00:26,326 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:00:26,327 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] [2022-11-20 12:00:26,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:00:26,327 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-20 12:00:26,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:26,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1888493310, now seen corresponding path program 1 times [2022-11-20 12:00:26,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:26,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292572729] [2022-11-20 12:00:26,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:26,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:26,419 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 12:00:26,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:26,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292572729] [2022-11-20 12:00:26,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292572729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:26,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:26,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:00:26,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842710564] [2022-11-20 12:00:26,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:26,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:26,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:26,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:26,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:26,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 468 [2022-11-20 12:00:26,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 351 transitions, 722 flow. Second operand has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states 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 12:00:26,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:00:26,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 468 [2022-11-20 12:00:26,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:00:31,096 INFO L130 PetriNetUnfolder]: 11625/19107 cut-off events. [2022-11-20 12:00:31,097 INFO L131 PetriNetUnfolder]: For 1122/1822 co-relation queries the response was YES. [2022-11-20 12:00:31,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36211 conditions, 19107 events. 11625/19107 cut-off events. For 1122/1822 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 134842 event pairs, 10560 based on Foata normal form. 0/17630 useless extension candidates. Maximal degree in co-relation 36152. Up to 15976 conditions per place. [2022-11-20 12:00:31,442 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 43 selfloop transitions, 2 changer transitions 0/350 dead transitions. [2022-11-20 12:00:31,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 350 transitions, 810 flow [2022-11-20 12:00:31,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:31,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:00:31,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-11-20 12:00:31,449 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8126780626780626 [2022-11-20 12:00:31,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-11-20 12:00:31,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-11-20 12:00:31,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:00:31,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-11-20 12:00:31,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states 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 12:00:31,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:31,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:31,463 INFO L175 Difference]: Start difference. First operand has 351 places, 351 transitions, 722 flow. Second operand 3 states and 1141 transitions. [2022-11-20 12:00:31,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 350 transitions, 810 flow [2022-11-20 12:00:31,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 350 transitions, 806 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:00:31,473 INFO L231 Difference]: Finished difference. Result has 350 places, 350 transitions, 720 flow [2022-11-20 12:00:31,474 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=720, PETRI_PLACES=350, PETRI_TRANSITIONS=350} [2022-11-20 12:00:31,475 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -60 predicate places. [2022-11-20 12:00:31,475 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 350 transitions, 720 flow [2022-11-20 12:00:31,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states 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 12:00:31,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:00:31,477 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:31,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:00:31,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-20 12:00:31,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:31,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1236054377, now seen corresponding path program 1 times [2022-11-20 12:00:31,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:31,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329407809] [2022-11-20 12:00:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:31,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:31,537 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 12:00:31,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:31,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329407809] [2022-11-20 12:00:31,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329407809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:31,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:31,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:00:31,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554315980] [2022-11-20 12:00:31,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:31,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:31,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:31,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:31,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:31,543 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 468 [2022-11-20 12:00:31,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 350 transitions, 720 flow. Second operand has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states 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 12:00:31,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:00:31,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 468 [2022-11-20 12:00:31,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:00:36,062 INFO L130 PetriNetUnfolder]: 11625/19106 cut-off events. [2022-11-20 12:00:36,063 INFO L131 PetriNetUnfolder]: For 1122/1822 co-relation queries the response was YES. [2022-11-20 12:00:36,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36210 conditions, 19106 events. 11625/19106 cut-off events. For 1122/1822 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 135114 event pairs, 10560 based on Foata normal form. 0/17630 useless extension candidates. Maximal degree in co-relation 36144. Up to 15976 conditions per place. [2022-11-20 12:00:36,380 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 43 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2022-11-20 12:00:36,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 349 transitions, 808 flow [2022-11-20 12:00:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:36,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:00:36,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-11-20 12:00:36,385 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8126780626780626 [2022-11-20 12:00:36,385 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-11-20 12:00:36,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-11-20 12:00:36,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:00:36,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-11-20 12:00:36,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states 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 12:00:36,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:36,397 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:36,397 INFO L175 Difference]: Start difference. First operand has 350 places, 350 transitions, 720 flow. Second operand 3 states and 1141 transitions. [2022-11-20 12:00:36,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 349 transitions, 808 flow [2022-11-20 12:00:36,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 349 transitions, 804 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:00:36,406 INFO L231 Difference]: Finished difference. Result has 349 places, 349 transitions, 718 flow [2022-11-20 12:00:36,407 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=349, PETRI_TRANSITIONS=349} [2022-11-20 12:00:36,407 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -61 predicate places. [2022-11-20 12:00:36,408 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 349 transitions, 718 flow [2022-11-20 12:00:36,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states 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 12:00:36,409 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:00:36,409 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:36,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:00:36,410 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-20 12:00:36,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:36,411 INFO L85 PathProgramCache]: Analyzing trace with hash -425449538, now seen corresponding path program 1 times [2022-11-20 12:00:36,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:36,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412572916] [2022-11-20 12:00:36,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:36,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:36,466 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 12:00:36,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:36,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412572916] [2022-11-20 12:00:36,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412572916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:36,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:36,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:00:36,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163819384] [2022-11-20 12:00:36,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:36,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:36,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:36,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:36,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:36,471 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 468 [2022-11-20 12:00:36,473 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 349 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states 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 12:00:36,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:00:36,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 468 [2022-11-20 12:00:36,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:00:41,661 INFO L130 PetriNetUnfolder]: 11988/19786 cut-off events. [2022-11-20 12:00:41,661 INFO L131 PetriNetUnfolder]: For 1149/1849 co-relation queries the response was YES. [2022-11-20 12:00:41,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37481 conditions, 19786 events. 11988/19786 cut-off events. For 1149/1849 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 140046 event pairs, 10899 based on Foata normal form. 0/18213 useless extension candidates. Maximal degree in co-relation 37408. Up to 16543 conditions per place. [2022-11-20 12:00:41,930 INFO L137 encePairwiseOnDemand]: 465/468 looper letters, 52 selfloop transitions, 2 changer transitions 0/348 dead transitions. [2022-11-20 12:00:41,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 348 transitions, 824 flow [2022-11-20 12:00:41,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:41,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:00:41,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1123 transitions. [2022-11-20 12:00:41,934 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7998575498575499 [2022-11-20 12:00:41,935 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1123 transitions. [2022-11-20 12:00:41,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1123 transitions. [2022-11-20 12:00:41,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:00:41,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1123 transitions. [2022-11-20 12:00:41,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states 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 12:00:41,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:41,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:00:41,945 INFO L175 Difference]: Start difference. First operand has 349 places, 349 transitions, 718 flow. Second operand 3 states and 1123 transitions. [2022-11-20 12:00:41,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 348 transitions, 824 flow [2022-11-20 12:00:41,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 348 transitions, 820 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:00:41,953 INFO L231 Difference]: Finished difference. Result has 348 places, 348 transitions, 716 flow [2022-11-20 12:00:41,954 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=348, PETRI_TRANSITIONS=348} [2022-11-20 12:00:41,955 INFO L288 CegarLoopForPetriNet]: 410 programPoint places, -62 predicate places. [2022-11-20 12:00:41,955 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 348 transitions, 716 flow [2022-11-20 12:00:41,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states 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 12:00:41,956 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:00:41,956 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] [2022-11-20 12:00:41,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:00:41,957 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-20 12:00:41,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:41,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1045181753, now seen corresponding path program 1 times [2022-11-20 12:00:41,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:41,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042814423] [2022-11-20 12:00:41,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:41,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:42,009 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 12:00:42,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:42,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042814423] [2022-11-20 12:00:42,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042814423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:42,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:42,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:00:42,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773541092] [2022-11-20 12:00:42,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:42,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:00:42,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:42,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:42,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:42,014 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 468 [2022-11-20 12:00:42,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 348 transitions, 716 flow. Second operand has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states 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 12:00:42,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:00:42,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 468 [2022-11-20 12:00:42,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand