./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/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_96adae07-f8d6-4bb3-b576-6d8336fcc83b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/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_96adae07-f8d6-4bb3-b576-6d8336fcc83b/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 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 --- 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 11:47:01,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:47:01,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:47:01,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:47:01,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:47:01,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:47:01,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:47:01,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:47:01,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:47:01,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:47:01,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:47:01,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:47:01,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:47:01,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:47:01,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:47:01,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:47:01,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:47:01,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:47:01,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:47:01,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:47:01,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:47:01,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:47:01,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:47:01,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:47:01,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:47:01,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:47:01,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:47:01,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:47:01,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:47:01,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:47:01,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:47:01,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:47:01,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:47:01,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:47:01,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:47:01,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:47:01,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:47:01,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:47:01,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:47:01,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:47:01,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:47:01,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:47:01,752 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:47:01,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:47:01,753 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:47:01,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:47:01,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:47:01,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:47:01,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:47:01,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:47:01,757 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:47:01,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:47:01,758 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:47:01,759 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:47:01,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:47:01,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:47:01,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:47:01,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:47:01,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:47:01,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:47:01,761 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:47:01,761 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:47:01,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:47:01,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:47:01,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:47:01,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:47:01,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:47:01,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:47:01,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:47:01,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:47:01,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:47:01,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:47:01,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:47:01,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:47:01,765 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:47:01,766 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:47:01,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:47:01,766 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_96adae07-f8d6-4bb3-b576-6d8336fcc83b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 [2022-11-20 11:47:02,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:47:02,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:47:02,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:47:02,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:47:02,179 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:47:02,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-11-20 11:47:05,802 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:47:06,057 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:47:06,058 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-11-20 11:47:06,070 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/bin/uautomizer-ug76WZFUDN/data/a517967a9/dd98a8bd4bf6455284f01fedb4d7e26e/FLAGba61af83b [2022-11-20 11:47:06,096 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/bin/uautomizer-ug76WZFUDN/data/a517967a9/dd98a8bd4bf6455284f01fedb4d7e26e [2022-11-20 11:47:06,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:47:06,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:47:06,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:47:06,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:47:06,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:47:06,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af8cf31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06, skipping insertion in model container [2022-11-20 11:47:06,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:47:06,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:47:06,414 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_96adae07-f8d6-4bb3-b576-6d8336fcc83b/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-11-20 11:47:06,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:47:06,434 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:47:06,493 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_96adae07-f8d6-4bb3-b576-6d8336fcc83b/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-11-20 11:47:06,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:47:06,518 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:47:06,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06 WrapperNode [2022-11-20 11:47:06,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:47:06,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:47:06,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:47:06,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:47:06,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,643 INFO L138 Inliner]: procedures = 25, calls = 45, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 268 [2022-11-20 11:47:06,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:47:06,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:47:06,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:47:06,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:47:06,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,715 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:47:06,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:47:06,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:47:06,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:47:06,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (1/1) ... [2022-11-20 11:47:06,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:47:06,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:06,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:06,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96adae07-f8d6-4bb3-b576-6d8336fcc83b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:47:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:47:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:47:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:47:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:47:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:47:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:47:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:47:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:47:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:47:06,850 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:47:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:47:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:47:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:47:06,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:47:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:47:06,854 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 11:47:07,074 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:47:07,077 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:47:08,173 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:47:08,193 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:47:08,194 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 11:47:08,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:47:08 BoogieIcfgContainer [2022-11-20 11:47:08,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:47:08,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:47:08,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:47:08,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:47:08,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:47:06" (1/3) ... [2022-11-20 11:47:08,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5328ad68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:47:08, skipping insertion in model container [2022-11-20 11:47:08,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:06" (2/3) ... [2022-11-20 11:47:08,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5328ad68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:47:08, skipping insertion in model container [2022-11-20 11:47:08,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:47:08" (3/3) ... [2022-11-20 11:47:08,210 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2022-11-20 11:47:08,221 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:47:08,234 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:47:08,234 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-11-20 11:47:08,234 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:47:08,421 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 11:47:08,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 645 places, 668 transitions, 1360 flow [2022-11-20 11:47:08,982 INFO L130 PetriNetUnfolder]: 33/665 cut-off events. [2022-11-20 11:47:08,982 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:47:09,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 665 events. 33/665 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1725 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 481. Up to 3 conditions per place. [2022-11-20 11:47:09,006 INFO L82 GeneralOperation]: Start removeDead. Operand has 645 places, 668 transitions, 1360 flow [2022-11-20 11:47:09,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 621 places, 642 transitions, 1302 flow [2022-11-20 11:47:09,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:47:09,064 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;@be9354a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:47:09,065 INFO L358 AbstractCegarLoop]: Starting to check reachability of 140 error locations. [2022-11-20 11:47:09,072 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-20 11:47:09,072 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:47:09,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:47:09,074 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 11:47:09,075 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-20 11:47:09,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:09,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1450561377, now seen corresponding path program 1 times [2022-11-20 11:47:09,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:09,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658270587] [2022-11-20 11:47:09,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:09,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:09,466 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 11:47:09,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:09,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658270587] [2022-11-20 11:47:09,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658270587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:09,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:09,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:47:09,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451950775] [2022-11-20 11:47:09,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:09,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:47:09,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:09,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:47:09,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:47:09,551 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 668 [2022-11-20 11:47:09,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 642 transitions, 1302 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states 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 11:47:09,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:47:09,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 668 [2022-11-20 11:47:09,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:47:10,969 INFO L130 PetriNetUnfolder]: 235/2607 cut-off events. [2022-11-20 11:47:10,969 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-11-20 11:47:11,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2986 conditions, 2607 events. 235/2607 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 20990 event pairs, 132 based on Foata normal form. 75/2126 useless extension candidates. Maximal degree in co-relation 2557. Up to 250 conditions per place. [2022-11-20 11:47:11,043 INFO L137 encePairwiseOnDemand]: 652/668 looper letters, 21 selfloop transitions, 2 changer transitions 7/628 dead transitions. [2022-11-20 11:47:11,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 628 transitions, 1320 flow [2022-11-20 11:47:11,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:47:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:47:11,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1924 transitions. [2022-11-20 11:47:11,077 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9600798403193613 [2022-11-20 11:47:11,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1924 transitions. [2022-11-20 11:47:11,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1924 transitions. [2022-11-20 11:47:11,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:47:11,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1924 transitions. [2022-11-20 11:47:11,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 641.3333333333334) internal successors, (1924), 3 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states 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 11:47:11,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:11,118 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:11,121 INFO L175 Difference]: Start difference. First operand has 621 places, 642 transitions, 1302 flow. Second operand 3 states and 1924 transitions. [2022-11-20 11:47:11,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 628 transitions, 1320 flow [2022-11-20 11:47:11,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 628 transitions, 1308 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:47:11,152 INFO L231 Difference]: Finished difference. Result has 616 places, 621 transitions, 1252 flow [2022-11-20 11:47:11,156 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1262, PETRI_DIFFERENCE_MINUEND_PLACES=614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=626, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1252, PETRI_PLACES=616, PETRI_TRANSITIONS=621} [2022-11-20 11:47:11,164 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -5 predicate places. [2022-11-20 11:47:11,164 INFO L495 AbstractCegarLoop]: Abstraction has has 616 places, 621 transitions, 1252 flow [2022-11-20 11:47:11,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states 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 11:47:11,166 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:47:11,167 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 11:47:11,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:47:11,167 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-20 11:47:11,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:11,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1376207265, now seen corresponding path program 1 times [2022-11-20 11:47:11,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:11,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080333288] [2022-11-20 11:47:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:11,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:11,274 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 11:47:11,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:11,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080333288] [2022-11-20 11:47:11,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080333288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:11,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:11,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:47:11,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456346863] [2022-11-20 11:47:11,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:11,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:47:11,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:11,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:47:11,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:47:11,283 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 668 [2022-11-20 11:47:11,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 621 transitions, 1252 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states 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 11:47:11,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:47:11,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 668 [2022-11-20 11:47:11,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:47:12,193 INFO L130 PetriNetUnfolder]: 133/1880 cut-off events. [2022-11-20 11:47:12,193 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-20 11:47:12,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2043 conditions, 1880 events. 133/1880 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12581 event pairs, 60 based on Foata normal form. 0/1494 useless extension candidates. Maximal degree in co-relation 2003. Up to 142 conditions per place. [2022-11-20 11:47:12,260 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 21 selfloop transitions, 2 changer transitions 0/620 dead transitions. [2022-11-20 11:47:12,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 610 places, 620 transitions, 1296 flow [2022-11-20 11:47:12,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:47:12,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:47:12,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1911 transitions. [2022-11-20 11:47:12,270 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9535928143712575 [2022-11-20 11:47:12,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1911 transitions. [2022-11-20 11:47:12,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1911 transitions. [2022-11-20 11:47:12,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:47:12,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1911 transitions. [2022-11-20 11:47:12,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states 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 11:47:12,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:12,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:12,289 INFO L175 Difference]: Start difference. First operand has 616 places, 621 transitions, 1252 flow. Second operand 3 states and 1911 transitions. [2022-11-20 11:47:12,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 610 places, 620 transitions, 1296 flow [2022-11-20 11:47:12,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 608 places, 620 transitions, 1292 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:47:12,306 INFO L231 Difference]: Finished difference. Result has 608 places, 620 transitions, 1250 flow [2022-11-20 11:47:12,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1246, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1250, PETRI_PLACES=608, PETRI_TRANSITIONS=620} [2022-11-20 11:47:12,309 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -13 predicate places. [2022-11-20 11:47:12,309 INFO L495 AbstractCegarLoop]: Abstraction has has 608 places, 620 transitions, 1250 flow [2022-11-20 11:47:12,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states 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 11:47:12,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:47:12,312 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:12,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:47:12,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-20 11:47:12,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:12,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1357738106, now seen corresponding path program 1 times [2022-11-20 11:47:12,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:12,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835461271] [2022-11-20 11:47:12,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:12,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:12,399 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 11:47:12,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:12,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835461271] [2022-11-20 11:47:12,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835461271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:12,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:12,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:47:12,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315627025] [2022-11-20 11:47:12,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:12,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:47:12,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:12,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:47:12,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:47:12,407 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 668 [2022-11-20 11:47:12,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 608 places, 620 transitions, 1250 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states 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 11:47:12,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:47:12,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 668 [2022-11-20 11:47:12,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:47:13,360 INFO L130 PetriNetUnfolder]: 235/2547 cut-off events. [2022-11-20 11:47:13,361 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-20 11:47:13,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2812 conditions, 2547 events. 235/2547 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 20180 event pairs, 132 based on Foata normal form. 0/2022 useless extension candidates. Maximal degree in co-relation 2765. Up to 250 conditions per place. [2022-11-20 11:47:13,423 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 21 selfloop transitions, 2 changer transitions 0/619 dead transitions. [2022-11-20 11:47:13,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 609 places, 619 transitions, 1294 flow [2022-11-20 11:47:13,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:47:13,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:47:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1911 transitions. [2022-11-20 11:47:13,429 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9535928143712575 [2022-11-20 11:47:13,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1911 transitions. [2022-11-20 11:47:13,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1911 transitions. [2022-11-20 11:47:13,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:47:13,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1911 transitions. [2022-11-20 11:47:13,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states 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 11:47:13,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:13,444 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:13,445 INFO L175 Difference]: Start difference. First operand has 608 places, 620 transitions, 1250 flow. Second operand 3 states and 1911 transitions. [2022-11-20 11:47:13,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 609 places, 619 transitions, 1294 flow [2022-11-20 11:47:13,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 607 places, 619 transitions, 1290 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:47:13,457 INFO L231 Difference]: Finished difference. Result has 607 places, 619 transitions, 1248 flow [2022-11-20 11:47:13,458 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1244, PETRI_DIFFERENCE_MINUEND_PLACES=605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1248, PETRI_PLACES=607, PETRI_TRANSITIONS=619} [2022-11-20 11:47:13,459 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -14 predicate places. [2022-11-20 11:47:13,459 INFO L495 AbstractCegarLoop]: Abstraction has has 607 places, 619 transitions, 1248 flow [2022-11-20 11:47:13,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states 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 11:47:13,461 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:47:13,461 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:13,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:47:13,462 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-20 11:47:13,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:13,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1742742709, now seen corresponding path program 1 times [2022-11-20 11:47:13,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:13,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690125842] [2022-11-20 11:47:13,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:13,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:13,522 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 11:47:13,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:13,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690125842] [2022-11-20 11:47:13,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690125842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:13,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:13,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:47:13,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942700992] [2022-11-20 11:47:13,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:13,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:47:13,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:13,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:47:13,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:47:13,529 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 668 [2022-11-20 11:47:13,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 619 transitions, 1248 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states 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 11:47:13,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:47:13,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 668 [2022-11-20 11:47:13,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:47:14,449 INFO L130 PetriNetUnfolder]: 254/2815 cut-off events. [2022-11-20 11:47:14,449 INFO L131 PetriNetUnfolder]: For 15/20 co-relation queries the response was YES. [2022-11-20 11:47:14,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3164 conditions, 2815 events. 254/2815 cut-off events. For 15/20 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 23359 event pairs, 132 based on Foata normal form. 0/2246 useless extension candidates. Maximal degree in co-relation 3110. Up to 286 conditions per place. [2022-11-20 11:47:14,531 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 24 selfloop transitions, 2 changer transitions 0/618 dead transitions. [2022-11-20 11:47:14,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 618 transitions, 1298 flow [2022-11-20 11:47:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:47:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:47:14,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1905 transitions. [2022-11-20 11:47:14,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9505988023952096 [2022-11-20 11:47:14,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1905 transitions. [2022-11-20 11:47:14,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1905 transitions. [2022-11-20 11:47:14,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:47:14,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1905 transitions. [2022-11-20 11:47:14,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 635.0) internal successors, (1905), 3 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states 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 11:47:14,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:14,557 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:14,557 INFO L175 Difference]: Start difference. First operand has 607 places, 619 transitions, 1248 flow. Second operand 3 states and 1905 transitions. [2022-11-20 11:47:14,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 618 transitions, 1298 flow [2022-11-20 11:47:14,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 618 transitions, 1294 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:47:14,575 INFO L231 Difference]: Finished difference. Result has 606 places, 618 transitions, 1246 flow [2022-11-20 11:47:14,577 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1242, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1246, PETRI_PLACES=606, PETRI_TRANSITIONS=618} [2022-11-20 11:47:14,578 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -15 predicate places. [2022-11-20 11:47:14,578 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 618 transitions, 1246 flow [2022-11-20 11:47:14,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states 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 11:47:14,580 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:47:14,580 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] [2022-11-20 11:47:14,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:47:14,581 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-20 11:47:14,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:14,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1543943733, now seen corresponding path program 1 times [2022-11-20 11:47:14,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:14,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282377832] [2022-11-20 11:47:14,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:14,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:14,678 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 11:47:14,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:14,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282377832] [2022-11-20 11:47:14,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282377832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:14,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:14,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:47:14,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898831911] [2022-11-20 11:47:14,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:14,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:47:14,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:14,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:47:14,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:47:14,689 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 668 [2022-11-20 11:47:14,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 618 transitions, 1246 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states 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 11:47:14,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:47:14,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 668 [2022-11-20 11:47:14,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:47:15,556 INFO L130 PetriNetUnfolder]: 154/1960 cut-off events. [2022-11-20 11:47:15,557 INFO L131 PetriNetUnfolder]: For 22/24 co-relation queries the response was YES. [2022-11-20 11:47:15,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2155 conditions, 1960 events. 154/1960 cut-off events. For 22/24 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13594 event pairs, 60 based on Foata normal form. 0/1578 useless extension candidates. Maximal degree in co-relation 2094. Up to 174 conditions per place. [2022-11-20 11:47:15,619 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 24 selfloop transitions, 2 changer transitions 0/617 dead transitions. [2022-11-20 11:47:15,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 617 transitions, 1296 flow [2022-11-20 11:47:15,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:47:15,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:47:15,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1905 transitions. [2022-11-20 11:47:15,624 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9505988023952096 [2022-11-20 11:47:15,625 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1905 transitions. [2022-11-20 11:47:15,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1905 transitions. [2022-11-20 11:47:15,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:47:15,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1905 transitions. [2022-11-20 11:47:15,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 635.0) internal successors, (1905), 3 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states 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 11:47:15,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:15,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:15,640 INFO L175 Difference]: Start difference. First operand has 606 places, 618 transitions, 1246 flow. Second operand 3 states and 1905 transitions. [2022-11-20 11:47:15,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 607 places, 617 transitions, 1296 flow [2022-11-20 11:47:15,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 617 transitions, 1292 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:47:15,654 INFO L231 Difference]: Finished difference. Result has 605 places, 617 transitions, 1244 flow [2022-11-20 11:47:15,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1240, PETRI_DIFFERENCE_MINUEND_PLACES=603, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=615, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1244, PETRI_PLACES=605, PETRI_TRANSITIONS=617} [2022-11-20 11:47:15,656 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -16 predicate places. [2022-11-20 11:47:15,657 INFO L495 AbstractCegarLoop]: Abstraction has has 605 places, 617 transitions, 1244 flow [2022-11-20 11:47:15,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states 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 11:47:15,659 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:47:15,659 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] [2022-11-20 11:47:15,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:47:15,660 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-20 11:47:15,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:15,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1574549315, now seen corresponding path program 1 times [2022-11-20 11:47:15,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:15,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250169189] [2022-11-20 11:47:15,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:15,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:15,721 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 11:47:15,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:15,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250169189] [2022-11-20 11:47:15,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250169189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:15,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:15,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:47:15,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29526345] [2022-11-20 11:47:15,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:15,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:47:15,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:15,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:47:15,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:47:15,727 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 668 [2022-11-20 11:47:15,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 617 transitions, 1244 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states 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 11:47:15,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:47:15,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 668 [2022-11-20 11:47:15,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:47:16,673 INFO L130 PetriNetUnfolder]: 274/2576 cut-off events. [2022-11-20 11:47:16,673 INFO L131 PetriNetUnfolder]: For 71/75 co-relation queries the response was YES. [2022-11-20 11:47:16,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2910 conditions, 2576 events. 274/2576 cut-off events. For 71/75 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 19787 event pairs, 132 based on Foata normal form. 0/2071 useless extension candidates. Maximal degree in co-relation 2842. Up to 319 conditions per place. [2022-11-20 11:47:16,759 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 24 selfloop transitions, 2 changer transitions 0/616 dead transitions. [2022-11-20 11:47:16,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 606 places, 616 transitions, 1294 flow [2022-11-20 11:47:16,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:47:16,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:47:16,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1905 transitions. [2022-11-20 11:47:16,765 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9505988023952096 [2022-11-20 11:47:16,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1905 transitions. [2022-11-20 11:47:16,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1905 transitions. [2022-11-20 11:47:16,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:47:16,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1905 transitions. [2022-11-20 11:47:16,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 635.0) internal successors, (1905), 3 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states 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 11:47:16,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:16,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:16,781 INFO L175 Difference]: Start difference. First operand has 605 places, 617 transitions, 1244 flow. Second operand 3 states and 1905 transitions. [2022-11-20 11:47:16,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 606 places, 616 transitions, 1294 flow [2022-11-20 11:47:16,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 604 places, 616 transitions, 1290 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:47:16,794 INFO L231 Difference]: Finished difference. Result has 604 places, 616 transitions, 1242 flow [2022-11-20 11:47:16,796 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1238, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=614, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1242, PETRI_PLACES=604, PETRI_TRANSITIONS=616} [2022-11-20 11:47:16,797 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -17 predicate places. [2022-11-20 11:47:16,797 INFO L495 AbstractCegarLoop]: Abstraction has has 604 places, 616 transitions, 1242 flow [2022-11-20 11:47:16,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states 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 11:47:16,799 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:47:16,799 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] [2022-11-20 11:47:16,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:47:16,800 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-20 11:47:16,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:16,801 INFO L85 PathProgramCache]: Analyzing trace with hash -499023195, now seen corresponding path program 1 times [2022-11-20 11:47:16,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:16,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619204564] [2022-11-20 11:47:16,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:16,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:16,857 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 11:47:16,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:16,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619204564] [2022-11-20 11:47:16,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619204564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:16,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:16,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:47:16,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592973712] [2022-11-20 11:47:16,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:16,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:47:16,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:16,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:47:16,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:47:16,864 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 668 [2022-11-20 11:47:16,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 604 places, 616 transitions, 1242 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states 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 11:47:16,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:47:16,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 668 [2022-11-20 11:47:16,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:47:17,532 INFO L130 PetriNetUnfolder]: 165/2355 cut-off events. [2022-11-20 11:47:17,532 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-20 11:47:17,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2544 conditions, 2355 events. 165/2355 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 18325 event pairs, 64 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 2468. Up to 151 conditions per place. [2022-11-20 11:47:17,593 INFO L137 encePairwiseOnDemand]: 662/668 looper letters, 17 selfloop transitions, 1 changer transitions 0/611 dead transitions. [2022-11-20 11:47:17,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 611 transitions, 1268 flow [2022-11-20 11:47:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:47:17,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:47:17,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1910 transitions. [2022-11-20 11:47:17,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9530938123752495 [2022-11-20 11:47:17,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1910 transitions. [2022-11-20 11:47:17,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1910 transitions. [2022-11-20 11:47:17,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:47:17,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1910 transitions. [2022-11-20 11:47:17,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 636.6666666666666) internal successors, (1910), 3 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states 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 11:47:17,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:17,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:17,611 INFO L175 Difference]: Start difference. First operand has 604 places, 616 transitions, 1242 flow. Second operand 3 states and 1910 transitions. [2022-11-20 11:47:17,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 611 transitions, 1268 flow [2022-11-20 11:47:17,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 611 transitions, 1264 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:47:17,624 INFO L231 Difference]: Finished difference. Result has 599 places, 611 transitions, 1230 flow [2022-11-20 11:47:17,625 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1230, PETRI_PLACES=599, PETRI_TRANSITIONS=611} [2022-11-20 11:47:17,626 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -22 predicate places. [2022-11-20 11:47:17,626 INFO L495 AbstractCegarLoop]: Abstraction has has 599 places, 611 transitions, 1230 flow [2022-11-20 11:47:17,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states 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 11:47:17,628 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:47:17,628 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:17,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:47:17,628 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-20 11:47:17,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:17,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1144123179, now seen corresponding path program 1 times [2022-11-20 11:47:17,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:17,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039110453] [2022-11-20 11:47:17,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:17,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:17,729 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 11:47:17,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:17,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039110453] [2022-11-20 11:47:17,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039110453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:17,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:17,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:47:17,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102891161] [2022-11-20 11:47:17,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:17,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:47:17,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:17,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:47:17,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:47:17,735 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 668 [2022-11-20 11:47:17,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 599 places, 611 transitions, 1230 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states 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 11:47:17,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:47:17,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 668 [2022-11-20 11:47:17,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:47:18,839 INFO L130 PetriNetUnfolder]: 259/2800 cut-off events. [2022-11-20 11:47:18,840 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-20 11:47:18,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3152 conditions, 2800 events. 259/2800 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 21892 event pairs, 132 based on Foata normal form. 0/2270 useless extension candidates. Maximal degree in co-relation 3077. Up to 290 conditions per place. [2022-11-20 11:47:18,931 INFO L137 encePairwiseOnDemand]: 665/668 looper letters, 21 selfloop transitions, 2 changer transitions 0/610 dead transitions. [2022-11-20 11:47:18,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 610 transitions, 1274 flow [2022-11-20 11:47:18,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:47:18,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:47:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1911 transitions. [2022-11-20 11:47:18,938 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9535928143712575 [2022-11-20 11:47:18,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1911 transitions. [2022-11-20 11:47:18,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1911 transitions. [2022-11-20 11:47:18,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:47:18,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1911 transitions. [2022-11-20 11:47:18,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 637.0) internal successors, (1911), 3 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states 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 11:47:18,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:18,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 668.0) internal successors, (2672), 4 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states 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 11:47:18,959 INFO L175 Difference]: Start difference. First operand has 599 places, 611 transitions, 1230 flow. Second operand 3 states and 1911 transitions. [2022-11-20 11:47:18,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 610 transitions, 1274 flow [2022-11-20 11:47:18,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 610 transitions, 1273 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:47:18,979 INFO L231 Difference]: Finished difference. Result has 599 places, 610 transitions, 1231 flow [2022-11-20 11:47:18,980 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=668, PETRI_DIFFERENCE_MINUEND_FLOW=1227, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1231, PETRI_PLACES=599, PETRI_TRANSITIONS=610} [2022-11-20 11:47:18,985 INFO L288 CegarLoopForPetriNet]: 621 programPoint places, -22 predicate places. [2022-11-20 11:47:18,986 INFO L495 AbstractCegarLoop]: Abstraction has has 599 places, 610 transitions, 1231 flow [2022-11-20 11:47:18,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states 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 11:47:18,987 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:47:18,987 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:18,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:47:18,988 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-20 11:47:18,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:18,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1376462027, now seen corresponding path program 1 times [2022-11-20 11:47:18,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:18,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574744090] [2022-11-20 11:47:18,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:18,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:19,886 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 11:47:19,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:19,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574744090] [2022-11-20 11:47:19,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574744090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:19,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:19,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:47:19,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613007053] [2022-11-20 11:47:19,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:19,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:47:19,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:19,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:47:19,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:47:19,898 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 668 [2022-11-20 11:47:19,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 599 places, 610 transitions, 1231 flow. Second operand has 6 states, 6 states have (on average 507.8333333333333) internal successors, (3047), 6 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states 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 11:47:19,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:47:19,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 668 [2022-11-20 11:47:19,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand