./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:46:41,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:46:41,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:46:41,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:46:41,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:46:41,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:46:41,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:46:41,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:46:41,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:46:41,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:46:41,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:46:41,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:46:41,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:46:41,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:46:41,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:46:41,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:46:41,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:46:41,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:46:41,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:46:41,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:46:41,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:46:41,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:46:41,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:46:41,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:46:41,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:46:41,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:46:41,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:46:41,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:46:41,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:46:41,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:46:41,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:46:41,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:46:41,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:46:41,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:46:41,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:46:41,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:46:41,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:46:41,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:46:41,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:46:41,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:46:41,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:46:41,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:46:41,632 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:46:41,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:46:41,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:46:41,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:46:41,634 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:46:41,634 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:46:41,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:46:41,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:46:41,635 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:46:41,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:46:41,636 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:46:41,636 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:46:41,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:46:41,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:46:41,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:46:41,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:46:41,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:46:41,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:46:41,637 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:46:41,638 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:46:41,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:46:41,638 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:46:41,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:46:41,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:46:41,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:46:41,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:46:41,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:46:41,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:46:41,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:46:41,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:46:41,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:46:41,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:46:41,640 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:46:41,640 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:46:41,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:46:41,641 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_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2022-11-18 20:46:41,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:46:41,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:46:41,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:46:41,945 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:46:41,946 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:46:41,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2022-11-18 20:46:42,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/data/302348a65/b81e25a24eaf46bb8194f762d42bf325/FLAG3137d3b42 [2022-11-18 20:46:42,719 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:46:42,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2022-11-18 20:46:42,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/data/302348a65/b81e25a24eaf46bb8194f762d42bf325/FLAG3137d3b42 [2022-11-18 20:46:42,963 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/data/302348a65/b81e25a24eaf46bb8194f762d42bf325 [2022-11-18 20:46:42,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:46:42,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:46:42,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:46:42,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:46:42,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:46:42,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:46:42" (1/1) ... [2022-11-18 20:46:42,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61cc020c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:42, skipping insertion in model container [2022-11-18 20:46:42,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:46:42" (1/1) ... [2022-11-18 20:46:42,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:46:43,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:46:43,553 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2022-11-18 20:46:43,587 WARN L1568 CHandler]: Possible shadowing of function new [2022-11-18 20:46:43,591 WARN L1568 CHandler]: Possible shadowing of function new [2022-11-18 20:46:43,594 WARN L1568 CHandler]: Possible shadowing of function new [2022-11-18 20:46:43,595 WARN L1568 CHandler]: Possible shadowing of function new [2022-11-18 20:46:43,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:46:43,643 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:46:43,673 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2022-11-18 20:46:43,678 WARN L1568 CHandler]: Possible shadowing of function new [2022-11-18 20:46:43,679 WARN L1568 CHandler]: Possible shadowing of function new [2022-11-18 20:46:43,680 WARN L1568 CHandler]: Possible shadowing of function new [2022-11-18 20:46:43,681 WARN L1568 CHandler]: Possible shadowing of function new [2022-11-18 20:46:43,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:46:43,758 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:46:43,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43 WrapperNode [2022-11-18 20:46:43,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:46:43,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:46:43,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:46:43,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:46:43,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (1/1) ... [2022-11-18 20:46:43,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (1/1) ... [2022-11-18 20:46:43,839 INFO L138 Inliner]: procedures = 278, calls = 64, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 456 [2022-11-18 20:46:43,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:46:43,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:46:43,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:46:43,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:46:43,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (1/1) ... [2022-11-18 20:46:43,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (1/1) ... [2022-11-18 20:46:43,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (1/1) ... [2022-11-18 20:46:43,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (1/1) ... [2022-11-18 20:46:43,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (1/1) ... [2022-11-18 20:46:43,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (1/1) ... [2022-11-18 20:46:43,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (1/1) ... [2022-11-18 20:46:43,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (1/1) ... [2022-11-18 20:46:43,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:46:43,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:46:43,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:46:43,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:46:43,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (1/1) ... [2022-11-18 20:46:43,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:46:43,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:46:43,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:46:44,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:46:44,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:46:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:46:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-18 20:46:44,037 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-18 20:46:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:46:44,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:46:44,038 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-18 20:46:44,038 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-18 20:46:44,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:46:44,038 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:46:44,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:46:44,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:46:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:46:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:46:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:46:44,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:46:44,042 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:46:44,257 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:46:44,259 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:46:45,227 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:46:45,254 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:46:45,254 INFO L300 CfgBuilder]: Removed 30 assume(true) statements. [2022-11-18 20:46:45,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:46:45 BoogieIcfgContainer [2022-11-18 20:46:45,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:46:45,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:46:45,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:46:45,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:46:45,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:46:42" (1/3) ... [2022-11-18 20:46:45,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430eb499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:46:45, skipping insertion in model container [2022-11-18 20:46:45,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:46:43" (2/3) ... [2022-11-18 20:46:45,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430eb499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:46:45, skipping insertion in model container [2022-11-18 20:46:45,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:46:45" (3/3) ... [2022-11-18 20:46:45,270 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2022-11-18 20:46:45,279 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:46:45,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:46:45,300 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-18 20:46:45,300 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:46:45,530 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 20:46:45,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 457 places, 498 transitions, 1018 flow [2022-11-18 20:46:45,952 INFO L130 PetriNetUnfolder]: 77/775 cut-off events. [2022-11-18 20:46:45,952 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2022-11-18 20:46:45,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 775 events. 77/775 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3840 event pairs, 0 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 404. Up to 8 conditions per place. [2022-11-18 20:46:45,979 INFO L82 GeneralOperation]: Start removeDead. Operand has 457 places, 498 transitions, 1018 flow [2022-11-18 20:46:45,996 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 457 places, 498 transitions, 1018 flow [2022-11-18 20:46:46,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:46:46,016 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;@7a002e5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:46:46,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-11-18 20:46:46,029 INFO L130 PetriNetUnfolder]: 5/73 cut-off events. [2022-11-18 20:46:46,029 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:46:46,029 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:46:46,030 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] [2022-11-18 20:46:46,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 20:46:46,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:46:46,036 INFO L85 PathProgramCache]: Analyzing trace with hash 786362714, now seen corresponding path program 1 times [2022-11-18 20:46:46,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:46:46,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885743195] [2022-11-18 20:46:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:46:46,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:46:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:46:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:46:46,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:46:46,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885743195] [2022-11-18 20:46:46,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885743195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:46:46,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:46:46,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:46:46,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539655604] [2022-11-18 20:46:46,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:46:46,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:46:46,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:46:46,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:46:46,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:46:46,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 498 [2022-11-18 20:46:46,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 498 transitions, 1018 flow. Second operand has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:46:46,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:46:46,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 498 [2022-11-18 20:46:46,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:06,000 INFO L130 PetriNetUnfolder]: 52239/123295 cut-off events. [2022-11-18 20:47:06,000 INFO L131 PetriNetUnfolder]: For 1617/1848 co-relation queries the response was YES. [2022-11-18 20:47:06,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200910 conditions, 123295 events. 52239/123295 cut-off events. For 1617/1848 co-relation queries the response was YES. Maximal size of possible extension queue 2525. Compared 1494435 event pairs, 46326 based on Foata normal form. 26398/132417 useless extension candidates. Maximal degree in co-relation 196324. Up to 77008 conditions per place. [2022-11-18 20:47:06,767 INFO L137 encePairwiseOnDemand]: 452/498 looper letters, 162 selfloop transitions, 10 changer transitions 0/460 dead transitions. [2022-11-18 20:47:06,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 460 transitions, 1286 flow [2022-11-18 20:47:06,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:47:06,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:47:06,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1936 transitions. [2022-11-18 20:47:06,793 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6479250334672021 [2022-11-18 20:47:06,794 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1936 transitions. [2022-11-18 20:47:06,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1936 transitions. [2022-11-18 20:47:06,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:06,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1936 transitions. [2022-11-18 20:47:06,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 322.6666666666667) internal successors, (1936), 6 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:06,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 498.0) internal successors, (3486), 7 states have internal predecessors, (3486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:06,827 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 498.0) internal successors, (3486), 7 states have internal predecessors, (3486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:06,829 INFO L175 Difference]: Start difference. First operand has 457 places, 498 transitions, 1018 flow. Second operand 6 states and 1936 transitions. [2022-11-18 20:47:06,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 460 transitions, 1286 flow [2022-11-18 20:47:06,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 460 transitions, 1286 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:47:06,892 INFO L231 Difference]: Finished difference. Result has 458 places, 460 transitions, 962 flow [2022-11-18 20:47:06,894 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=962, PETRI_PLACES=458, PETRI_TRANSITIONS=460} [2022-11-18 20:47:06,900 INFO L288 CegarLoopForPetriNet]: 457 programPoint places, 1 predicate places. [2022-11-18 20:47:06,900 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 460 transitions, 962 flow [2022-11-18 20:47:06,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:06,902 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:06,902 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] [2022-11-18 20:47:06,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:47:06,902 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 20:47:06,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:06,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1851167824, now seen corresponding path program 1 times [2022-11-18 20:47:06,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:06,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632749263] [2022-11-18 20:47:06,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:06,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:07,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:07,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:07,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632749263] [2022-11-18 20:47:07,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632749263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:47:07,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:47:07,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:47:07,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080981501] [2022-11-18 20:47:07,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:47:07,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:47:07,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:07,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:47:07,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:47:07,015 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 498 [2022-11-18 20:47:07,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 460 transitions, 962 flow. Second operand has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:07,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:07,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 498 [2022-11-18 20:47:07,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:07,433 INFO L130 PetriNetUnfolder]: 20/838 cut-off events. [2022-11-18 20:47:07,433 INFO L131 PetriNetUnfolder]: For 33/37 co-relation queries the response was YES. [2022-11-18 20:47:07,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 838 events. 20/838 cut-off events. For 33/37 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4131 event pairs, 0 based on Foata normal form. 0/761 useless extension candidates. Maximal degree in co-relation 641. Up to 22 conditions per place. [2022-11-18 20:47:07,442 INFO L137 encePairwiseOnDemand]: 495/498 looper letters, 21 selfloop transitions, 2 changer transitions 0/467 dead transitions. [2022-11-18 20:47:07,442 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 467 transitions, 1022 flow [2022-11-18 20:47:07,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:47:07,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:47:07,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1362 transitions. [2022-11-18 20:47:07,446 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9116465863453815 [2022-11-18 20:47:07,446 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1362 transitions. [2022-11-18 20:47:07,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1362 transitions. [2022-11-18 20:47:07,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:07,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1362 transitions. [2022-11-18 20:47:07,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 454.0) internal successors, (1362), 3 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:07,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 498.0) internal successors, (1992), 4 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:07,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 498.0) internal successors, (1992), 4 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:07,456 INFO L175 Difference]: Start difference. First operand has 458 places, 460 transitions, 962 flow. Second operand 3 states and 1362 transitions. [2022-11-18 20:47:07,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 467 transitions, 1022 flow [2022-11-18 20:47:07,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 467 transitions, 1002 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:47:07,465 INFO L231 Difference]: Finished difference. Result has 456 places, 461 transitions, 954 flow [2022-11-18 20:47:07,466 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=954, PETRI_PLACES=456, PETRI_TRANSITIONS=461} [2022-11-18 20:47:07,467 INFO L288 CegarLoopForPetriNet]: 457 programPoint places, -1 predicate places. [2022-11-18 20:47:07,467 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 461 transitions, 954 flow [2022-11-18 20:47:07,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:07,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:07,469 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] [2022-11-18 20:47:07,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:47:07,469 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 20:47:07,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:07,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2043444604, now seen corresponding path program 1 times [2022-11-18 20:47:07,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:07,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142162372] [2022-11-18 20:47:07,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:07,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:07,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:47:07,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:47:07,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142162372] [2022-11-18 20:47:07,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142162372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:47:07,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:47:07,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:47:07,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029259005] [2022-11-18 20:47:07,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:47:07,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:47:07,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:47:07,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:47:07,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:47:07,882 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 498 [2022-11-18 20:47:07,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 461 transitions, 954 flow. Second operand has 6 states, 6 states have (on average 290.5) internal successors, (1743), 6 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:07,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:47:07,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 498 [2022-11-18 20:47:07,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:47:29,582 INFO L130 PetriNetUnfolder]: 52240/123417 cut-off events. [2022-11-18 20:47:29,582 INFO L131 PetriNetUnfolder]: For 1618/1849 co-relation queries the response was YES. [2022-11-18 20:47:29,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201105 conditions, 123417 events. 52240/123417 cut-off events. For 1618/1849 co-relation queries the response was YES. Maximal size of possible extension queue 2526. Compared 1495034 event pairs, 46326 based on Foata normal form. 0/106137 useless extension candidates. Maximal degree in co-relation 200878. Up to 77064 conditions per place. [2022-11-18 20:47:30,270 INFO L137 encePairwiseOnDemand]: 486/498 looper letters, 160 selfloop transitions, 10 changer transitions 0/459 dead transitions. [2022-11-18 20:47:30,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 459 transitions, 1290 flow [2022-11-18 20:47:30,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:47:30,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:47:30,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1900 transitions. [2022-11-18 20:47:30,284 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6358768406961178 [2022-11-18 20:47:30,284 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1900 transitions. [2022-11-18 20:47:30,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1900 transitions. [2022-11-18 20:47:30,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:47:30,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1900 transitions. [2022-11-18 20:47:30,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 316.6666666666667) internal successors, (1900), 6 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:30,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 498.0) internal successors, (3486), 7 states have internal predecessors, (3486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:30,304 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 498.0) internal successors, (3486), 7 states have internal predecessors, (3486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:30,305 INFO L175 Difference]: Start difference. First operand has 456 places, 461 transitions, 954 flow. Second operand 6 states and 1900 transitions. [2022-11-18 20:47:30,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 459 transitions, 1290 flow [2022-11-18 20:47:30,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 459 transitions, 1288 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:47:30,340 INFO L231 Difference]: Finished difference. Result has 458 places, 459 transitions, 968 flow [2022-11-18 20:47:30,341 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=948, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=968, PETRI_PLACES=458, PETRI_TRANSITIONS=459} [2022-11-18 20:47:30,341 INFO L288 CegarLoopForPetriNet]: 457 programPoint places, 1 predicate places. [2022-11-18 20:47:30,342 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 459 transitions, 968 flow [2022-11-18 20:47:30,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 290.5) internal successors, (1743), 6 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:47:30,343 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:47:30,343 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:47:30,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:47:30,344 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-18 20:47:30,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:47:30,344 INFO L85 PathProgramCache]: Analyzing trace with hash 879564535, now seen corresponding path program 1 times [2022-11-18 20:47:30,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:47:30,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637785468] [2022-11-18 20:47:30,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:30,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:47:30,372 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:47:30,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750496597] [2022-11-18 20:47:30,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:47:30,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:47:30,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:47:30,377 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:47:30,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b85939b6-f2dc-4f3c-a5fb-f2951c3ebaf3/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:47:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:47:30,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjunts are in the unsatisfiable core