./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.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_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/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_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/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_ffec0e06-8694-4031-b245-556fbf57fb2e/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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- 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 17:41:33,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:41:33,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:41:33,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:41:33,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:41:33,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:41:33,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:41:33,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:41:33,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:41:33,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:41:33,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:41:33,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:41:33,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:41:33,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:41:33,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:41:33,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:41:33,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:41:33,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:41:33,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:41:33,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:41:33,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:41:33,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:41:33,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:41:33,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:41:33,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:41:33,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:41:33,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:41:33,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:41:33,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:41:33,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:41:33,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:41:33,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:41:33,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:41:33,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:41:33,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:41:33,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:41:33,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:41:33,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:41:33,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:41:33,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:41:33,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:41:33,554 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 17:41:33,575 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:41:33,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:41:33,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:41:33,576 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:41:33,576 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:41:33,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:41:33,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:41:33,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:41:33,578 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:41:33,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:41:33,578 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:41:33,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:41:33,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:41:33,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:41:33,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:41:33,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:41:33,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:41:33,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:41:33,579 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:41:33,579 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:41:33,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:41:33,580 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:41:33,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:41:33,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:41:33,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:41:33,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:41:33,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:41:33,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:41:33,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:41:33,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:41:33,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:41:33,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:41:33,581 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:41:33,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:41:33,581 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:41:33,582 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:41:33,582 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:41:33,582 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_ffec0e06-8694-4031-b245-556fbf57fb2e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2022-12-13 17:41:33,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:41:33,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:41:33,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:41:33,778 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:41:33,778 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:41:33,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-13 17:41:36,376 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:41:36,527 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:41:36,527 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-13 17:41:36,536 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/data/e81794d76/e0392625c383432a8a70de284ff8cb5c/FLAGfd4b7a23b [2022-12-13 17:41:36,547 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/data/e81794d76/e0392625c383432a8a70de284ff8cb5c [2022-12-13 17:41:36,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:41:36,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:41:36,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:41:36,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:41:36,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:41:36,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@676c8dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36, skipping insertion in model container [2022-12-13 17:41:36,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:41:36,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:41:36,780 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_ffec0e06-8694-4031-b245-556fbf57fb2e/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-13 17:41:36,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:41:36,803 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:41:36,825 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_ffec0e06-8694-4031-b245-556fbf57fb2e/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-13 17:41:36,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:41:36,863 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:41:36,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36 WrapperNode [2022-12-13 17:41:36,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:41:36,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:41:36,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:41:36,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:41:36,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,908 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-12-13 17:41:36,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:41:36,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:41:36,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:41:36,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:41:36,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,930 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:41:36,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:41:36,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:41:36,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:41:36,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (1/1) ... [2022-12-13 17:41:36,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:41:36,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:41:36,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:41:36,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:41:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:41:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:41:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 17:41:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:41:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:41:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 17:41:37,000 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 17:41:37,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:41:37,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:41:37,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:41:37,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:41:37,002 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 17:41:37,109 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:41:37,111 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:41:37,259 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:41:37,267 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:41:37,267 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-13 17:41:37,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:41:37 BoogieIcfgContainer [2022-12-13 17:41:37,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:41:37,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:41:37,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:41:37,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:41:37,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:41:36" (1/3) ... [2022-12-13 17:41:37,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ef37b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:41:37, skipping insertion in model container [2022-12-13 17:41:37,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:41:36" (2/3) ... [2022-12-13 17:41:37,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ef37b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:41:37, skipping insertion in model container [2022-12-13 17:41:37,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:41:37" (3/3) ... [2022-12-13 17:41:37,278 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-12-13 17:41:37,285 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:41:37,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:41:37,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 17:41:37,293 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:41:37,338 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 17:41:37,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 117 transitions, 242 flow [2022-12-13 17:41:37,400 INFO L130 PetriNetUnfolder]: 9/116 cut-off events. [2022-12-13 17:41:37,400 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 17:41:37,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 116 events. 9/116 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 191 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 64. Up to 3 conditions per place. [2022-12-13 17:41:37,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 117 transitions, 242 flow [2022-12-13 17:41:37,407 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 106 transitions, 215 flow [2022-12-13 17:41:37,410 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:41:37,417 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 106 transitions, 215 flow [2022-12-13 17:41:37,419 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 106 transitions, 215 flow [2022-12-13 17:41:37,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 106 transitions, 215 flow [2022-12-13 17:41:37,437 INFO L130 PetriNetUnfolder]: 9/106 cut-off events. [2022-12-13 17:41:37,437 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:41:37,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 106 events. 9/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 161 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 64. Up to 3 conditions per place. [2022-12-13 17:41:37,439 INFO L119 LiptonReduction]: Number of co-enabled transitions 1886 [2022-12-13 17:41:40,184 INFO L134 LiptonReduction]: Checked pairs total: 3075 [2022-12-13 17:41:40,184 INFO L136 LiptonReduction]: Total number of compositions: 95 [2022-12-13 17:41:40,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:41:40,199 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;@3fd67771, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:41:40,199 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-13 17:41:40,202 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 17:41:40,202 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:41:40,202 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:41:40,203 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:41:40,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 17:41:40,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:41:40,207 INFO L85 PathProgramCache]: Analyzing trace with hash 413184075, now seen corresponding path program 1 times [2022-12-13 17:41:40,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:41:40,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701395311] [2022-12-13 17:41:40,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:41:40,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:41:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:41:40,509 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 17:41:40,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:41:40,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701395311] [2022-12-13 17:41:40,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701395311] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:41:40,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:41:40,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:41:40,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317627496] [2022-12-13 17:41:40,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:41:40,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:41:40,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:41:40,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:41:40,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:41:40,659 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 212 [2022-12-13 17:41:40,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 31 transitions, 65 flow. Second operand has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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 17:41:40,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:41:40,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 212 [2022-12-13 17:41:40,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:41:40,761 INFO L130 PetriNetUnfolder]: 50/124 cut-off events. [2022-12-13 17:41:40,761 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:41:40,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 124 events. 50/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 382 event pairs, 0 based on Foata normal form. 6/118 useless extension candidates. Maximal degree in co-relation 237. Up to 89 conditions per place. [2022-12-13 17:41:40,763 INFO L137 encePairwiseOnDemand]: 197/212 looper letters, 19 selfloop transitions, 4 changer transitions 4/29 dead transitions. [2022-12-13 17:41:40,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 115 flow [2022-12-13 17:41:40,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:41:40,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:41:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 529 transitions. [2022-12-13 17:41:40,778 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4990566037735849 [2022-12-13 17:41:40,779 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 529 transitions. [2022-12-13 17:41:40,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 529 transitions. [2022-12-13 17:41:40,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:41:40,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 529 transitions. [2022-12-13 17:41:40,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 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 17:41:40,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 212.0) internal successors, (1272), 6 states have internal predecessors, (1272), 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 17:41:40,794 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 212.0) internal successors, (1272), 6 states have internal predecessors, (1272), 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 17:41:40,796 INFO L175 Difference]: Start difference. First operand has 26 places, 31 transitions, 65 flow. Second operand 5 states and 529 transitions. [2022-12-13 17:41:40,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 29 transitions, 115 flow [2022-12-13 17:41:40,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 29 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:41:40,800 INFO L231 Difference]: Finished difference. Result has 26 places, 15 transitions, 40 flow [2022-12-13 17:41:40,802 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=15} [2022-12-13 17:41:40,805 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2022-12-13 17:41:40,805 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 15 transitions, 40 flow [2022-12-13 17:41:40,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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 17:41:40,805 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:41:40,806 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:41:40,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:41:40,806 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 17:41:40,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:41:40,807 INFO L85 PathProgramCache]: Analyzing trace with hash -210212369, now seen corresponding path program 1 times [2022-12-13 17:41:40,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:41:40,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138439480] [2022-12-13 17:41:40,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:41:40,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:41:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:41:40,918 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 17:41:40,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:41:40,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138439480] [2022-12-13 17:41:40,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138439480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:41:40,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:41:40,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:41:40,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779702395] [2022-12-13 17:41:40,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:41:40,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:41:40,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:41:40,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:41:40,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:41:40,945 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 212 [2022-12-13 17:41:40,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 15 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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 17:41:40,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:41:40,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 212 [2022-12-13 17:41:40,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:41:40,982 INFO L130 PetriNetUnfolder]: 25/66 cut-off events. [2022-12-13 17:41:40,982 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-13 17:41:40,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 66 events. 25/66 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 175 event pairs, 10 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 136. Up to 33 conditions per place. [2022-12-13 17:41:40,983 INFO L137 encePairwiseOnDemand]: 210/212 looper letters, 16 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2022-12-13 17:41:40,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 19 transitions, 82 flow [2022-12-13 17:41:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:41:40,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:41:40,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2022-12-13 17:41:40,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5047169811320755 [2022-12-13 17:41:40,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 321 transitions. [2022-12-13 17:41:40,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 321 transitions. [2022-12-13 17:41:40,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:41:40,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 321 transitions. [2022-12-13 17:41:40,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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 17:41:40,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 212.0) internal successors, (848), 4 states have internal predecessors, (848), 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 17:41:40,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 212.0) internal successors, (848), 4 states have internal predecessors, (848), 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 17:41:40,992 INFO L175 Difference]: Start difference. First operand has 26 places, 15 transitions, 40 flow. Second operand 3 states and 321 transitions. [2022-12-13 17:41:40,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 19 transitions, 82 flow [2022-12-13 17:41:40,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 19 transitions, 74 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 17:41:40,993 INFO L231 Difference]: Finished difference. Result has 19 places, 14 transitions, 32 flow [2022-12-13 17:41:40,993 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=19, PETRI_TRANSITIONS=14} [2022-12-13 17:41:40,994 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, -7 predicate places. [2022-12-13 17:41:40,994 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 14 transitions, 32 flow [2022-12-13 17:41:40,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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 17:41:40,995 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:41:40,995 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:41:40,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:41:40,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-12-13 17:41:40,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:41:40,996 INFO L85 PathProgramCache]: Analyzing trace with hash -210212368, now seen corresponding path program 1 times [2022-12-13 17:41:40,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:41:40,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724663253] [2022-12-13 17:41:40,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:41:40,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:41:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:41:41,140 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 17:41:41,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:41:41,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724663253] [2022-12-13 17:41:41,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724663253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:41:41,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:41:41,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:41:41,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640131107] [2022-12-13 17:41:41,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:41:41,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:41:41,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:41:41,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:41:41,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:41:41,259 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 212 [2022-12-13 17:41:41,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 14 transitions, 32 flow. Second operand has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 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 17:41:41,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:41:41,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 212 [2022-12-13 17:41:41,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:41:41,324 INFO L130 PetriNetUnfolder]: 20/58 cut-off events. [2022-12-13 17:41:41,325 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:41:41,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 58 events. 20/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 154 event pairs, 0 based on Foata normal form. 6/64 useless extension candidates. Maximal degree in co-relation 111. Up to 22 conditions per place. [2022-12-13 17:41:41,325 INFO L137 encePairwiseOnDemand]: 207/212 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2022-12-13 17:41:41,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 23 transitions, 92 flow [2022-12-13 17:41:41,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:41:41,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:41:41,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 604 transitions. [2022-12-13 17:41:41,327 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4748427672955975 [2022-12-13 17:41:41,327 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 604 transitions. [2022-12-13 17:41:41,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 604 transitions. [2022-12-13 17:41:41,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:41:41,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 604 transitions. [2022-12-13 17:41:41,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 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 17:41:41,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 212.0) internal successors, (1484), 7 states have internal predecessors, (1484), 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 17:41:41,330 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 212.0) internal successors, (1484), 7 states have internal predecessors, (1484), 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 17:41:41,331 INFO L175 Difference]: Start difference. First operand has 19 places, 14 transitions, 32 flow. Second operand 6 states and 604 transitions. [2022-12-13 17:41:41,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 23 transitions, 92 flow [2022-12-13 17:41:41,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 23 transitions, 91 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:41:41,331 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2022-12-13 17:41:41,331 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2022-12-13 17:41:41,332 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, -4 predicate places. [2022-12-13 17:41:41,332 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2022-12-13 17:41:41,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 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 17:41:41,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-12-13 17:41:41,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-12-13 17:41:41,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-12-13 17:41:41,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-12-13 17:41:41,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-12-13 17:41:41,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-12-13 17:41:41,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-12-13 17:41:41,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-12-13 17:41:41,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-12-13 17:41:41,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:41:41,336 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 17:41:41,341 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:41:41,341 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:41:41,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:41:41 BasicIcfg [2022-12-13 17:41:41,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:41:41,344 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:41:41,344 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:41:41,344 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:41:41,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:41:37" (3/4) ... [2022-12-13 17:41:41,346 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:41:41,351 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 17:41:41,353 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-13 17:41:41,354 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 17:41:41,354 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 17:41:41,354 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:41:41,377 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:41:41,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:41:41,378 INFO L158 Benchmark]: Toolchain (without parser) took 4827.96ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 74.7MB in the beginning and 78.6MB in the end (delta: -3.9MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-12-13 17:41:41,378 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:41:41,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.23ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 74.3MB in the beginning and 112.2MB in the end (delta: -37.9MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-12-13 17:41:41,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.53ms. Allocated memory is still 140.5MB. Free memory was 112.2MB in the beginning and 112.2MB in the end (delta: -11.7kB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-12-13 17:41:41,379 INFO L158 Benchmark]: Boogie Preprocessor took 24.77ms. Allocated memory is still 140.5MB. Free memory was 112.2MB in the beginning and 110.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:41:41,379 INFO L158 Benchmark]: RCFGBuilder took 335.04ms. Allocated memory is still 140.5MB. Free memory was 110.1MB in the beginning and 95.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 17:41:41,380 INFO L158 Benchmark]: TraceAbstraction took 4071.62ms. Allocated memory is still 140.5MB. Free memory was 94.5MB in the beginning and 81.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 17:41:41,380 INFO L158 Benchmark]: Witness Printer took 33.32ms. Allocated memory is still 140.5MB. Free memory was 80.7MB in the beginning and 78.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:41:41,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.23ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 74.3MB in the beginning and 112.2MB in the end (delta: -37.9MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.53ms. Allocated memory is still 140.5MB. Free memory was 112.2MB in the beginning and 112.2MB in the end (delta: -11.7kB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.77ms. Allocated memory is still 140.5MB. Free memory was 112.2MB in the beginning and 110.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 335.04ms. Allocated memory is still 140.5MB. Free memory was 110.1MB in the beginning and 95.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4071.62ms. Allocated memory is still 140.5MB. Free memory was 94.5MB in the beginning and 81.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 33.32ms. Allocated memory is still 140.5MB. Free memory was 80.7MB in the beginning and 78.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 101 PlacesBefore, 26 PlacesAfterwards, 106 TransitionsBefore, 31 TransitionsAfterwards, 1886 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 95 TotalNumberOfCompositions, 3075 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1671, independent: 1558, independent conditional: 0, independent unconditional: 1558, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1074, independent: 1038, independent conditional: 0, independent unconditional: 1038, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1671, independent: 520, independent conditional: 0, independent unconditional: 520, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 1074, unknown conditional: 0, unknown unconditional: 1074] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 146 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 332 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 703 IncrementalHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 43 mSDtfsCounter, 703 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 17:41:41,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffec0e06-8694-4031-b245-556fbf57fb2e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE