./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8 --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 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- 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-e04fb08 [2022-11-16 11:07:54,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:07:54,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:07:54,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:07:54,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:07:54,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:07:54,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:07:54,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:07:54,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:07:54,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:07:54,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:07:54,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:07:54,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:07:54,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:07:54,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:07:54,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:07:54,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:07:54,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:07:54,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:07:54,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:07:54,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:07:54,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:07:54,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:07:54,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:07:54,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:07:54,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:07:54,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:07:54,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:07:54,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:07:54,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:07:54,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:07:54,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:07:54,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:07:54,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:07:54,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:07:54,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:07:54,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:07:54,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:07:54,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:07:54,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:07:54,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:07:54,674 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:07:54,735 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:07:54,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:07:54,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:07:54,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:07:54,738 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:07:54,738 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:07:54,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:07:54,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:07:54,740 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:07:54,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:07:54,741 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:07:54,741 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:07:54,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:07:54,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:07:54,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:07:54,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:07:54,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:07:54,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:07:54,743 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:07:54,743 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:07:54,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:07:54,744 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:07:54,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:07:54,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:07:54,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:07:54,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:07:54,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:54,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:07:54,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:07:54,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:07:54,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:07:54,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:07:54,747 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:07:54,748 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:07:54,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:07:54,750 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_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2022-11-16 11:07:55,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:07:55,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:07:55,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:07:55,186 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:07:55,188 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:07:55,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-11-16 11:07:55,294 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/data/c03928b2c/4d647bdeebcf49cc8aac07804aade781/FLAGe4fef9ada [2022-11-16 11:07:56,241 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:07:56,242 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-11-16 11:07:56,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/data/c03928b2c/4d647bdeebcf49cc8aac07804aade781/FLAGe4fef9ada [2022-11-16 11:07:56,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/data/c03928b2c/4d647bdeebcf49cc8aac07804aade781 [2022-11-16 11:07:56,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:07:56,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:07:56,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:56,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:07:56,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:07:56,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:56" (1/1) ... [2022-11-16 11:07:56,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4847451b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:56, skipping insertion in model container [2022-11-16 11:07:56,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:07:56" (1/1) ... [2022-11-16 11:07:56,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:07:56,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:07:57,355 WARN L229 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_04e40c53-5930-45a9-83a7-65c5e85f9509/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-11-16 11:07:57,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:57,461 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:07:57,543 WARN L229 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_04e40c53-5930-45a9-83a7-65c5e85f9509/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-11-16 11:07:57,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:07:57,767 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:07:57,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57 WrapperNode [2022-11-16 11:07:57,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:07:57,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:57,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:07:57,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:07:57,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (1/1) ... [2022-11-16 11:07:57,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (1/1) ... [2022-11-16 11:07:57,944 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 406 [2022-11-16 11:07:57,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:07:57,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:07:57,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:07:57,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:07:57,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (1/1) ... [2022-11-16 11:07:57,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (1/1) ... [2022-11-16 11:07:57,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (1/1) ... [2022-11-16 11:07:57,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (1/1) ... [2022-11-16 11:07:58,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (1/1) ... [2022-11-16 11:07:58,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (1/1) ... [2022-11-16 11:07:58,078 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (1/1) ... [2022-11-16 11:07:58,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (1/1) ... [2022-11-16 11:07:58,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:07:58,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:07:58,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:07:58,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:07:58,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (1/1) ... [2022-11-16 11:07:58,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:58,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:07:58,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:07:58,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04e40c53-5930-45a9-83a7-65c5e85f9509/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:07:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:07:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:07:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:07:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:07:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:07:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:07:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:07:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:07:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:07:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:07:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:07:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:07:58,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:07:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:07:58,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:07:58,235 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:07:58,575 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:07:58,578 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:07:59,980 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:08:00,002 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:08:00,006 INFO L300 CfgBuilder]: Removed 23 assume(true) statements. [2022-11-16 11:08:00,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:00 BoogieIcfgContainer [2022-11-16 11:08:00,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:08:00,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:08:00,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:08:00,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:08:00,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:07:56" (1/3) ... [2022-11-16 11:08:00,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f2cb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:00, skipping insertion in model container [2022-11-16 11:08:00,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:07:57" (2/3) ... [2022-11-16 11:08:00,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f2cb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:00, skipping insertion in model container [2022-11-16 11:08:00,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:00" (3/3) ... [2022-11-16 11:08:00,026 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2022-11-16 11:08:00,043 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:08:00,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:08:00,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-16 11:08:00,060 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:08:00,283 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 11:08:00,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 424 places, 450 transitions, 908 flow [2022-11-16 11:08:00,882 INFO L130 PetriNetUnfolder]: 45/653 cut-off events. [2022-11-16 11:08:00,883 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:08:00,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 653 events. 45/653 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2121 event pairs, 0 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 361. Up to 8 conditions per place. [2022-11-16 11:08:00,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 424 places, 450 transitions, 908 flow [2022-11-16 11:08:00,935 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 424 places, 450 transitions, 908 flow [2022-11-16 11:08:00,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:08:00,975 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;@fdaef8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:08:00,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-16 11:08:00,986 INFO L130 PetriNetUnfolder]: 0/44 cut-off events. [2022-11-16 11:08:00,986 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:08:00,987 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:00,988 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:00,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:08:00,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:00,999 INFO L85 PathProgramCache]: Analyzing trace with hash 103087345, now seen corresponding path program 1 times [2022-11-16 11:08:01,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:01,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566158581] [2022-11-16 11:08:01,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:01,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:02,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:02,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:02,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566158581] [2022-11-16 11:08:02,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566158581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:02,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:02,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:02,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946971861] [2022-11-16 11:08:02,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:02,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:02,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:02,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:02,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:02,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 450 [2022-11-16 11:08:02,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 450 transitions, 908 flow. Second operand has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:02,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:02,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 450 [2022-11-16 11:08:02,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:09,341 INFO L130 PetriNetUnfolder]: 5422/17205 cut-off events. [2022-11-16 11:08:09,342 INFO L131 PetriNetUnfolder]: For 12/17 co-relation queries the response was YES. [2022-11-16 11:08:09,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28010 conditions, 17205 events. 5422/17205 cut-off events. For 12/17 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 154763 event pairs, 5246 based on Foata normal form. 1753/16828 useless extension candidates. Maximal degree in co-relation 27606. Up to 10793 conditions per place. [2022-11-16 11:08:09,444 INFO L137 encePairwiseOnDemand]: 419/450 looper letters, 174 selfloop transitions, 5 changer transitions 0/422 dead transitions. [2022-11-16 11:08:09,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 422 transitions, 1210 flow [2022-11-16 11:08:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:09,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:08:09,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1663 transitions. [2022-11-16 11:08:09,485 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6159259259259259 [2022-11-16 11:08:09,486 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1663 transitions. [2022-11-16 11:08:09,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1663 transitions. [2022-11-16 11:08:09,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:09,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1663 transitions. [2022-11-16 11:08:09,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 277.1666666666667) internal successors, (1663), 6 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:09,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 450.0) internal successors, (3150), 7 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:09,536 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 450.0) internal successors, (3150), 7 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:09,539 INFO L175 Difference]: Start difference. First operand has 424 places, 450 transitions, 908 flow. Second operand 6 states and 1663 transitions. [2022-11-16 11:08:09,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 422 transitions, 1210 flow [2022-11-16 11:08:09,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 422 transitions, 1210 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:08:09,576 INFO L231 Difference]: Finished difference. Result has 426 places, 422 transitions, 862 flow [2022-11-16 11:08:09,580 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=450, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=426, PETRI_TRANSITIONS=422} [2022-11-16 11:08:09,590 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 2 predicate places. [2022-11-16 11:08:09,590 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 422 transitions, 862 flow [2022-11-16 11:08:09,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:09,592 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:09,593 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] [2022-11-16 11:08:09,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:08:09,594 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:08:09,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:09,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1424778550, now seen corresponding path program 1 times [2022-11-16 11:08:09,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:09,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606708348] [2022-11-16 11:08:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:09,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:10,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:10,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606708348] [2022-11-16 11:08:10,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606708348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:10,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:10,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:10,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302755350] [2022-11-16 11:08:10,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:10,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:10,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:10,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:10,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:10,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 450 [2022-11-16 11:08:10,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 422 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 248.33333333333334) internal successors, (1490), 6 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:10,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:10,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 450 [2022-11-16 11:08:10,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:17,963 INFO L130 PetriNetUnfolder]: 7574/24301 cut-off events. [2022-11-16 11:08:17,963 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:08:17,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39454 conditions, 24301 events. 7574/24301 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 238840 event pairs, 3087 based on Foata normal form. 0/21338 useless extension candidates. Maximal degree in co-relation 39390. Up to 11573 conditions per place. [2022-11-16 11:08:18,073 INFO L137 encePairwiseOnDemand]: 413/450 looper letters, 348 selfloop transitions, 107 changer transitions 0/701 dead transitions. [2022-11-16 11:08:18,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 701 transitions, 2333 flow [2022-11-16 11:08:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:18,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:08:18,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1933 transitions. [2022-11-16 11:08:18,082 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.715925925925926 [2022-11-16 11:08:18,082 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1933 transitions. [2022-11-16 11:08:18,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1933 transitions. [2022-11-16 11:08:18,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:18,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1933 transitions. [2022-11-16 11:08:18,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 322.1666666666667) internal successors, (1933), 6 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:18,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 450.0) internal successors, (3150), 7 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:18,103 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 450.0) internal successors, (3150), 7 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:18,103 INFO L175 Difference]: Start difference. First operand has 426 places, 422 transitions, 862 flow. Second operand 6 states and 1933 transitions. [2022-11-16 11:08:18,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 701 transitions, 2333 flow [2022-11-16 11:08:18,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 701 transitions, 2323 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:08:18,129 INFO L231 Difference]: Finished difference. Result has 430 places, 522 transitions, 1540 flow [2022-11-16 11:08:18,130 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=450, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1540, PETRI_PLACES=430, PETRI_TRANSITIONS=522} [2022-11-16 11:08:18,132 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 6 predicate places. [2022-11-16 11:08:18,132 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 522 transitions, 1540 flow [2022-11-16 11:08:18,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 248.33333333333334) internal successors, (1490), 6 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:18,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:18,134 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:18,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:08:18,135 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:08:18,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:18,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1616082236, now seen corresponding path program 1 times [2022-11-16 11:08:18,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:18,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205764312] [2022-11-16 11:08:18,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:18,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:18,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:18,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205764312] [2022-11-16 11:08:18,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205764312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:18,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:18,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:18,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017232743] [2022-11-16 11:08:18,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:18,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:18,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:18,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:18,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:18,703 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 450 [2022-11-16 11:08:18,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 522 transitions, 1540 flow. Second operand has 6 states, 6 states have (on average 244.16666666666666) internal successors, (1465), 6 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:18,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:18,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 450 [2022-11-16 11:08:18,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:27,020 INFO L130 PetriNetUnfolder]: 8022/25665 cut-off events. [2022-11-16 11:08:27,020 INFO L131 PetriNetUnfolder]: For 4379/4450 co-relation queries the response was YES. [2022-11-16 11:08:27,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46778 conditions, 25665 events. 8022/25665 cut-off events. For 4379/4450 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 249786 event pairs, 5996 based on Foata normal form. 0/22534 useless extension candidates. Maximal degree in co-relation 46238. Up to 15539 conditions per place. [2022-11-16 11:08:27,401 INFO L137 encePairwiseOnDemand]: 397/450 looper letters, 354 selfloop transitions, 171 changer transitions 0/766 dead transitions. [2022-11-16 11:08:27,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 766 transitions, 3270 flow [2022-11-16 11:08:27,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:27,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:08:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1872 transitions. [2022-11-16 11:08:27,413 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6933333333333334 [2022-11-16 11:08:27,413 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1872 transitions. [2022-11-16 11:08:27,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1872 transitions. [2022-11-16 11:08:27,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:27,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1872 transitions. [2022-11-16 11:08:27,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.0) internal successors, (1872), 6 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:27,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 450.0) internal successors, (3150), 7 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:27,433 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 450.0) internal successors, (3150), 7 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:27,433 INFO L175 Difference]: Start difference. First operand has 430 places, 522 transitions, 1540 flow. Second operand 6 states and 1872 transitions. [2022-11-16 11:08:27,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 766 transitions, 3270 flow [2022-11-16 11:08:27,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 766 transitions, 3270 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:08:27,474 INFO L231 Difference]: Finished difference. Result has 439 places, 686 transitions, 2836 flow [2022-11-16 11:08:27,475 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=450, PETRI_DIFFERENCE_MINUEND_FLOW=1538, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2836, PETRI_PLACES=439, PETRI_TRANSITIONS=686} [2022-11-16 11:08:27,479 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 15 predicate places. [2022-11-16 11:08:27,479 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 686 transitions, 2836 flow [2022-11-16 11:08:27,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.16666666666666) internal successors, (1465), 6 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:27,481 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:27,482 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:27,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:08:27,483 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:08:27,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:27,484 INFO L85 PathProgramCache]: Analyzing trace with hash 264023690, now seen corresponding path program 1 times [2022-11-16 11:08:27,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:27,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037065404] [2022-11-16 11:08:27,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:27,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:28,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:28,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037065404] [2022-11-16 11:08:28,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037065404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:28,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:28,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:28,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753360089] [2022-11-16 11:08:28,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:28,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:28,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:28,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:28,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:28,059 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 450 [2022-11-16 11:08:28,062 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 686 transitions, 2836 flow. Second operand has 6 states, 6 states have (on average 245.16666666666666) internal successors, (1471), 6 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:28,062 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:28,062 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 450 [2022-11-16 11:08:28,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:36,412 INFO L130 PetriNetUnfolder]: 8342/26696 cut-off events. [2022-11-16 11:08:36,412 INFO L131 PetriNetUnfolder]: For 8913/8984 co-relation queries the response was YES. [2022-11-16 11:08:36,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54417 conditions, 26696 events. 8342/26696 cut-off events. For 8913/8984 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 260578 event pairs, 5796 based on Foata normal form. 0/23554 useless extension candidates. Maximal degree in co-relation 53855. Up to 16130 conditions per place. [2022-11-16 11:08:36,574 INFO L137 encePairwiseOnDemand]: 397/450 looper letters, 517 selfloop transitions, 171 changer transitions 0/930 dead transitions. [2022-11-16 11:08:36,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 930 transitions, 5212 flow [2022-11-16 11:08:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:36,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:08:36,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1871 transitions. [2022-11-16 11:08:36,584 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.692962962962963 [2022-11-16 11:08:36,586 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1871 transitions. [2022-11-16 11:08:36,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1871 transitions. [2022-11-16 11:08:36,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:36,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1871 transitions. [2022-11-16 11:08:36,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 311.8333333333333) internal successors, (1871), 6 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:36,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 450.0) internal successors, (3150), 7 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:36,612 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 450.0) internal successors, (3150), 7 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:36,613 INFO L175 Difference]: Start difference. First operand has 439 places, 686 transitions, 2836 flow. Second operand 6 states and 1871 transitions. [2022-11-16 11:08:36,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 930 transitions, 5212 flow [2022-11-16 11:08:36,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 930 transitions, 5020 flow, removed 96 selfloop flow, removed 0 redundant places. [2022-11-16 11:08:36,674 INFO L231 Difference]: Finished difference. Result has 448 places, 850 transitions, 4260 flow [2022-11-16 11:08:36,678 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=450, PETRI_DIFFERENCE_MINUEND_FLOW=2642, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4260, PETRI_PLACES=448, PETRI_TRANSITIONS=850} [2022-11-16 11:08:36,680 INFO L288 CegarLoopForPetriNet]: 424 programPoint places, 24 predicate places. [2022-11-16 11:08:36,680 INFO L495 AbstractCegarLoop]: Abstraction has has 448 places, 850 transitions, 4260 flow [2022-11-16 11:08:36,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.16666666666666) internal successors, (1471), 6 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:36,682 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:36,684 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:36,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:08:36,686 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:08:36,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:36,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1023887004, now seen corresponding path program 1 times [2022-11-16 11:08:36,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:36,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975553749] [2022-11-16 11:08:36,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:36,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:36,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:08:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:08:36,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:08:36,870 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:08:36,872 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2022-11-16 11:08:36,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2022-11-16 11:08:36,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2022-11-16 11:08:36,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2022-11-16 11:08:36,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2022-11-16 11:08:36,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2022-11-16 11:08:36,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2022-11-16 11:08:36,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2022-11-16 11:08:36,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2022-11-16 11:08:36,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2022-11-16 11:08:36,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2022-11-16 11:08:36,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2022-11-16 11:08:36,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2022-11-16 11:08:36,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2022-11-16 11:08:36,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2022-11-16 11:08:36,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2022-11-16 11:08:36,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2022-11-16 11:08:36,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2022-11-16 11:08:36,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2022-11-16 11:08:36,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2022-11-16 11:08:36,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2022-11-16 11:08:36,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2022-11-16 11:08:36,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2022-11-16 11:08:36,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2022-11-16 11:08:36,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2022-11-16 11:08:36,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2022-11-16 11:08:36,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2022-11-16 11:08:36,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2022-11-16 11:08:36,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2022-11-16 11:08:36,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2022-11-16 11:08:36,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2022-11-16 11:08:36,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2022-11-16 11:08:36,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2022-11-16 11:08:36,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2022-11-16 11:08:36,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2022-11-16 11:08:36,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2022-11-16 11:08:36,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2022-11-16 11:08:36,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2022-11-16 11:08:36,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2022-11-16 11:08:36,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:08:36,894 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 11:08:36,898 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 11:08:36,899 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-16 11:08:37,047 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:08:37,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 568 places, 605 transitions, 1228 flow [2022-11-16 11:08:37,741 INFO L130 PetriNetUnfolder]: 76/1042 cut-off events. [2022-11-16 11:08:37,742 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:08:37,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 1042 events. 76/1042 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4712 event pairs, 0 based on Foata normal form. 0/895 useless extension candidates. Maximal degree in co-relation 655. Up to 12 conditions per place. [2022-11-16 11:08:37,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 568 places, 605 transitions, 1228 flow [2022-11-16 11:08:37,772 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 568 places, 605 transitions, 1228 flow [2022-11-16 11:08:37,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:08:37,775 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;@fdaef8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:08:37,776 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2022-11-16 11:08:37,782 INFO L130 PetriNetUnfolder]: 0/44 cut-off events. [2022-11-16 11:08:37,783 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:08:37,783 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:37,783 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:37,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-16 11:08:37,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:37,785 INFO L85 PathProgramCache]: Analyzing trace with hash 577064846, now seen corresponding path program 1 times [2022-11-16 11:08:37,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:37,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691889845] [2022-11-16 11:08:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:37,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:38,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:38,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:38,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691889845] [2022-11-16 11:08:38,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691889845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:38,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:38,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:38,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722824196] [2022-11-16 11:08:38,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:38,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:38,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:38,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:38,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:38,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 605 [2022-11-16 11:08:38,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 605 transitions, 1228 flow. Second operand has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:38,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:38,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 605 [2022-11-16 11:08:38,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand