./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- 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-2329fc7 [2022-12-13 14:39:43,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:39:43,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:39:43,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:39:43,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:39:43,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:39:43,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:39:43,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:39:43,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:39:43,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:39:43,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:39:43,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:39:43,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:39:43,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:39:43,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:39:43,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:39:43,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:39:43,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:39:43,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:39:43,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:39:43,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:39:43,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:39:43,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:39:43,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:39:43,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:39:43,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:39:43,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:39:43,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:39:43,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:39:43,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:39:43,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:39:43,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:39:43,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:39:43,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:39:43,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:39:43,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:39:43,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:39:43,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:39:43,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:39:43,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:39:43,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:39:43,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 14:39:43,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:39:43,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:39:43,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:39:43,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:39:43,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:39:43,758 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:39:43,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:39:43,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:39:43,758 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:39:43,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:39:43,759 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:39:43,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:39:43,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:39:43,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:39:43,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:39:43,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:39:43,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:39:43,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:39:43,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:39:43,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:39:43,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:39:43,761 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:39:43,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:39:43,761 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:39:43,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:39:43,761 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:39:43,761 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2022-12-13 14:39:43,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:39:43,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:39:43,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:39:43,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:39:43,967 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:39:43,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2022-12-13 14:39:46,555 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:39:46,740 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:39:46,741 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2022-12-13 14:39:46,762 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/data/7b42b8ae8/7150bf1c3d66420d817ee07f496f79e1/FLAGc3c1d651e [2022-12-13 14:39:46,775 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/data/7b42b8ae8/7150bf1c3d66420d817ee07f496f79e1 [2022-12-13 14:39:46,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:39:46,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:39:46,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:39:46,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:39:46,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:39:46,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:39:46" (1/1) ... [2022-12-13 14:39:46,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@210ea7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:46, skipping insertion in model container [2022-12-13 14:39:46,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:39:46" (1/1) ... [2022-12-13 14:39:46,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:39:46,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:39:47,221 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2022-12-13 14:39:47,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:39:47,260 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:39:47,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2022-12-13 14:39:47,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:39:47,332 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:39:47,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47 WrapperNode [2022-12-13 14:39:47,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:39:47,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:39:47,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:39:47,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:39:47,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (1/1) ... [2022-12-13 14:39:47,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (1/1) ... [2022-12-13 14:39:47,374 INFO L138 Inliner]: procedures = 279, calls = 88, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 398 [2022-12-13 14:39:47,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:39:47,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:39:47,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:39:47,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:39:47,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (1/1) ... [2022-12-13 14:39:47,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (1/1) ... [2022-12-13 14:39:47,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (1/1) ... [2022-12-13 14:39:47,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (1/1) ... [2022-12-13 14:39:47,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (1/1) ... [2022-12-13 14:39:47,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (1/1) ... [2022-12-13 14:39:47,402 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (1/1) ... [2022-12-13 14:39:47,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (1/1) ... [2022-12-13 14:39:47,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:39:47,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:39:47,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:39:47,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:39:47,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (1/1) ... [2022-12-13 14:39:47,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:39:47,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:39:47,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:39:47,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d84156d-ac07-4210-b38a-f4230f98cfa3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:39:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:39:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 14:39:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-12-13 14:39:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-12-13 14:39:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:39:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:39:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-13 14:39:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-13 14:39:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:39:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 14:39:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 14:39:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:39:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 14:39:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-12-13 14:39:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-12-13 14:39:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:39:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:39:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:39:47,467 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 14:39:47,591 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:39:47,593 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:39:48,009 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:39:48,019 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:39:48,019 INFO L300 CfgBuilder]: Removed 29 assume(true) statements. [2022-12-13 14:39:48,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:39:48 BoogieIcfgContainer [2022-12-13 14:39:48,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:39:48,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:39:48,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:39:48,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:39:48,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:39:46" (1/3) ... [2022-12-13 14:39:48,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74697a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:39:48, skipping insertion in model container [2022-12-13 14:39:48,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:39:47" (2/3) ... [2022-12-13 14:39:48,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74697a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:39:48, skipping insertion in model container [2022-12-13 14:39:48,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:39:48" (3/3) ... [2022-12-13 14:39:48,029 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2022-12-13 14:39:48,036 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 14:39:48,044 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:39:48,044 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-12-13 14:39:48,044 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:39:48,140 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-12-13 14:39:48,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 406 places, 447 transitions, 936 flow [2022-12-13 14:39:48,512 INFO L130 PetriNetUnfolder]: 188/1621 cut-off events. [2022-12-13 14:39:48,513 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-12-13 14:39:48,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1682 conditions, 1621 events. 188/1621 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 10712 event pairs, 0 based on Foata normal form. 0/1351 useless extension candidates. Maximal degree in co-relation 825. Up to 16 conditions per place. [2022-12-13 14:39:48,535 INFO L82 GeneralOperation]: Start removeDead. Operand has 406 places, 447 transitions, 936 flow [2022-12-13 14:39:48,550 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 406 places, 447 transitions, 936 flow [2022-12-13 14:39:48,553 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:39:48,563 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 406 places, 447 transitions, 936 flow [2022-12-13 14:39:48,566 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 406 places, 447 transitions, 936 flow [2022-12-13 14:39:48,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 406 places, 447 transitions, 936 flow [2022-12-13 14:39:48,828 INFO L130 PetriNetUnfolder]: 188/1621 cut-off events. [2022-12-13 14:39:48,828 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-12-13 14:39:48,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1682 conditions, 1621 events. 188/1621 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 10712 event pairs, 0 based on Foata normal form. 0/1351 useless extension candidates. Maximal degree in co-relation 825. Up to 16 conditions per place. [2022-12-13 14:39:48,910 INFO L119 LiptonReduction]: Number of co-enabled transitions 88840 [2022-12-13 14:40:08,307 INFO L134 LiptonReduction]: Checked pairs total: 175216 [2022-12-13 14:40:08,307 INFO L136 LiptonReduction]: Total number of compositions: 376 [2022-12-13 14:40:08,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:40:08,321 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;@675f9686, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:40:08,321 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-12-13 14:40:08,325 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 14:40:08,325 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:40:08,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:40:08,325 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 14:40:08,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-12-13 14:40:08,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:08,331 INFO L85 PathProgramCache]: Analyzing trace with hash 52576601, now seen corresponding path program 1 times [2022-12-13 14:40:08,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:08,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136861234] [2022-12-13 14:40:08,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:08,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:08,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:40:08,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:08,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136861234] [2022-12-13 14:40:08,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136861234] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:08,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:08,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:40:08,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52826302] [2022-12-13 14:40:08,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:08,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:40:08,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:08,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:40:08,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:40:08,687 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 823 [2022-12-13 14:40:08,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 142 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 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) [2022-12-13 14:40:08,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:40:08,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 823 [2022-12-13 14:40:08,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:40:31,932 INFO L130 PetriNetUnfolder]: 236285/330887 cut-off events. [2022-12-13 14:40:31,933 INFO L131 PetriNetUnfolder]: For 5423/5423 co-relation queries the response was YES. [2022-12-13 14:40:32,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649272 conditions, 330887 events. 236285/330887 cut-off events. For 5423/5423 co-relation queries the response was YES. Maximal size of possible extension queue 6366. Compared 2483929 event pairs, 148812 based on Foata normal form. 30884/280968 useless extension candidates. Maximal degree in co-relation 593437. Up to 315300 conditions per place. [2022-12-13 14:40:33,507 INFO L137 encePairwiseOnDemand]: 795/823 looper letters, 104 selfloop transitions, 2 changer transitions 0/123 dead transitions. [2022-12-13 14:40:33,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 123 transitions, 500 flow [2022-12-13 14:40:33,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:40:33,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:40:33,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1326 transitions. [2022-12-13 14:40:33,526 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5370595382746051 [2022-12-13 14:40:33,526 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1326 transitions. [2022-12-13 14:40:33,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1326 transitions. [2022-12-13 14:40:33,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:40:33,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1326 transitions. [2022-12-13 14:40:33,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 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) [2022-12-13 14:40:33,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 823.0) internal successors, (3292), 4 states have internal predecessors, (3292), 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) [2022-12-13 14:40:33,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 823.0) internal successors, (3292), 4 states have internal predecessors, (3292), 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) [2022-12-13 14:40:33,553 INFO L175 Difference]: Start difference. First operand has 112 places, 142 transitions, 326 flow. Second operand 3 states and 1326 transitions. [2022-12-13 14:40:33,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 123 transitions, 500 flow [2022-12-13 14:40:33,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 123 transitions, 500 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 14:40:33,589 INFO L231 Difference]: Finished difference. Result has 111 places, 115 transitions, 280 flow [2022-12-13 14:40:33,590 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=823, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=111, PETRI_TRANSITIONS=115} [2022-12-13 14:40:33,593 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, -1 predicate places. [2022-12-13 14:40:33,594 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 115 transitions, 280 flow [2022-12-13 14:40:33,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 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) [2022-12-13 14:40:33,594 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:40:33,594 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-12-13 14:40:33,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:40:33,595 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-12-13 14:40:33,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:33,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1013336584, now seen corresponding path program 1 times [2022-12-13 14:40:33,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:33,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274460269] [2022-12-13 14:40:33,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:33,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:40:33,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:40:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:40:33,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:40:33,661 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:40:33,662 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-12-13 14:40:33,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2022-12-13 14:40:33,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2022-12-13 14:40:33,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2022-12-13 14:40:33,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2022-12-13 14:40:33,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2022-12-13 14:40:33,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2022-12-13 14:40:33,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2022-12-13 14:40:33,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2022-12-13 14:40:33,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2022-12-13 14:40:33,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2022-12-13 14:40:33,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2022-12-13 14:40:33,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2022-12-13 14:40:33,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2022-12-13 14:40:33,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2022-12-13 14:40:33,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2022-12-13 14:40:33,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2022-12-13 14:40:33,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2022-12-13 14:40:33,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2022-12-13 14:40:33,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2022-12-13 14:40:33,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2022-12-13 14:40:33,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2022-12-13 14:40:33,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 31 remaining) [2022-12-13 14:40:33,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2022-12-13 14:40:33,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2022-12-13 14:40:33,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2022-12-13 14:40:33,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2022-12-13 14:40:33,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2022-12-13 14:40:33,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2022-12-13 14:40:33,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2022-12-13 14:40:33,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2022-12-13 14:40:33,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:40:33,669 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 14:40:33,672 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 14:40:33,672 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 14:40:33,743 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-12-13 14:40:33,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 609 places, 683 transitions, 1456 flow [2022-12-13 14:40:35,693 INFO L130 PetriNetUnfolder]: 1211/7876 cut-off events. [2022-12-13 14:40:35,693 INFO L131 PetriNetUnfolder]: For 602/602 co-relation queries the response was YES. [2022-12-13 14:40:35,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8550 conditions, 7876 events. 1211/7876 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 74539 event pairs, 22 based on Foata normal form. 0/6447 useless extension candidates. Maximal degree in co-relation 4892. Up to 192 conditions per place. [2022-12-13 14:40:35,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 609 places, 683 transitions, 1456 flow [2022-12-13 14:40:35,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 609 places, 683 transitions, 1456 flow [2022-12-13 14:40:35,914 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:40:35,914 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 609 places, 683 transitions, 1456 flow [2022-12-13 14:40:35,915 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 609 places, 683 transitions, 1456 flow [2022-12-13 14:40:35,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 609 places, 683 transitions, 1456 flow [2022-12-13 14:40:37,738 INFO L130 PetriNetUnfolder]: 1211/7876 cut-off events. [2022-12-13 14:40:37,738 INFO L131 PetriNetUnfolder]: For 602/602 co-relation queries the response was YES. [2022-12-13 14:40:37,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8550 conditions, 7876 events. 1211/7876 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 74539 event pairs, 22 based on Foata normal form. 0/6447 useless extension candidates. Maximal degree in co-relation 4892. Up to 192 conditions per place. [2022-12-13 14:40:38,572 INFO L119 LiptonReduction]: Number of co-enabled transitions 287172 [2022-12-13 14:40:59,551 INFO L134 LiptonReduction]: Checked pairs total: 573983 [2022-12-13 14:40:59,551 INFO L136 LiptonReduction]: Total number of compositions: 566 [2022-12-13 14:40:59,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:40:59,553 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;@675f9686, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:40:59,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-12-13 14:40:59,555 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 14:40:59,555 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:40:59,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:40:59,556 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:40:59,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-12-13 14:40:59,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:59,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1255456926, now seen corresponding path program 1 times [2022-12-13 14:40:59,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:59,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633849240] [2022-12-13 14:40:59,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:59,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:40:59,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:59,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633849240] [2022-12-13 14:40:59,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633849240] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:59,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:59,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:40:59,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491872271] [2022-12-13 14:40:59,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:59,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:40:59,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:59,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:40:59,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:40:59,619 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 1249 [2022-12-13 14:40:59,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 236 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 597.3333333333334) internal successors, (1792), 3 states have internal predecessors, (1792), 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) [2022-12-13 14:40:59,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:40:59,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 1249 [2022-12-13 14:40:59,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand