./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro --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 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:18:02,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:18:02,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:18:02,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:18:02,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:18:02,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:18:02,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:18:02,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:18:02,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:18:02,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:18:02,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:18:02,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:18:02,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:18:02,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:18:02,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:18:02,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:18:02,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:18:02,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:18:02,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:18:02,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:18:02,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:18:02,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:18:02,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:18:02,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:18:02,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:18:02,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:18:02,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:18:02,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:18:02,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:18:02,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:18:02,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:18:02,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:18:02,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:18:02,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:18:02,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:18:02,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:18:02,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:18:02,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:18:02,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:18:02,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:18:02,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:18:02,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:18:02,791 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:18:02,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:18:02,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:18:02,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:18:02,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:18:02,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:18:02,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:18:02,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:18:02,794 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:18:02,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:18:02,795 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:18:02,795 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:18:02,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:18:02,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:18:02,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:18:02,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:18:02,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:18:02,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:18:02,797 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:18:02,797 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:18:02,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:18:02,798 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:18:02,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:18:02,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:18:02,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:18:02,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:18:02,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:18:02,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:18:02,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:18:02,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:18:02,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:18:02,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:18:02,800 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:18:02,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:18:02,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:18:02,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf [2022-11-18 20:18:03,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:18:03,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:18:03,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:18:03,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:18:03,227 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:18:03,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2022-11-18 20:18:03,337 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/data/77830ba6f/d1c832a6dd1c4dd091bc0e3428c899d8/FLAGfc0943451 [2022-11-18 20:18:03,996 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:18:04,000 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2022-11-18 20:18:04,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/data/77830ba6f/d1c832a6dd1c4dd091bc0e3428c899d8/FLAGfc0943451 [2022-11-18 20:18:04,233 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/data/77830ba6f/d1c832a6dd1c4dd091bc0e3428c899d8 [2022-11-18 20:18:04,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:18:04,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:18:04,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:18:04,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:18:04,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:18:04,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:04,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21204c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04, skipping insertion in model container [2022-11-18 20:18:04,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:04,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:18:04,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:18:04,722 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[30176,30189] [2022-11-18 20:18:04,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:18:04,772 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:18:04,833 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i[30176,30189] [2022-11-18 20:18:04,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:18:04,904 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:18:04,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04 WrapperNode [2022-11-18 20:18:04,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:18:04,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:18:04,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:18:04,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:18:04,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:04,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:04,977 INFO L138 Inliner]: procedures = 170, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-18 20:18:04,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:18:04,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:18:04,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:18:04,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:18:04,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:04,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:05,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:05,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:05,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:05,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:05,026 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:05,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:05,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:18:05,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:18:05,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:18:05,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:18:05,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (1/1) ... [2022-11-18 20:18:05,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:18:05,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:05,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:05,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:18:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:18:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:18:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:18:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:18:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:18:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:18:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:18:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:18:05,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:18:05,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:18:05,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:18:05,130 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:18:05,298 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:18:05,300 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:18:05,644 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:18:05,653 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:18:05,654 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-18 20:18:05,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:18:05 BoogieIcfgContainer [2022-11-18 20:18:05,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:18:05,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:18:05,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:18:05,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:18:05,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:18:04" (1/3) ... [2022-11-18 20:18:05,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22902a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:18:05, skipping insertion in model container [2022-11-18 20:18:05,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:18:04" (2/3) ... [2022-11-18 20:18:05,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22902a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:18:05, skipping insertion in model container [2022-11-18 20:18:05,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:18:05" (3/3) ... [2022-11-18 20:18:05,678 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2022-11-18 20:18:05,688 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:18:05,699 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:18:05,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:18:05,700 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:18:05,799 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:18:05,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 115 transitions, 238 flow [2022-11-18 20:18:05,959 INFO L130 PetriNetUnfolder]: 9/114 cut-off events. [2022-11-18 20:18:05,959 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:18:05,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 114 events. 9/114 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 187 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 64. Up to 3 conditions per place. [2022-11-18 20:18:05,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 115 transitions, 238 flow [2022-11-18 20:18:05,971 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 104 transitions, 211 flow [2022-11-18 20:18:05,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:18:06,003 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;@71fde7ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:18:06,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-18 20:18:06,047 INFO L130 PetriNetUnfolder]: 2/74 cut-off events. [2022-11-18 20:18:06,048 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:18:06,049 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:18:06,050 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:06,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-18 20:18:06,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:06,057 INFO L85 PathProgramCache]: Analyzing trace with hash -937501210, now seen corresponding path program 1 times [2022-11-18 20:18:06,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:06,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761875078] [2022-11-18 20:18:06,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:06,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:06,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:06,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:06,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761875078] [2022-11-18 20:18:06,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761875078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:18:06,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:18:06,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:18:06,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824077887] [2022-11-18 20:18:06,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:18:06,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:18:06,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:07,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:18:07,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:18:07,034 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 115 [2022-11-18 20:18:07,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 104 transitions, 211 flow. Second operand has 11 states, 11 states have (on average 59.09090909090909) internal successors, (650), 11 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:07,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:18:07,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 115 [2022-11-18 20:18:07,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:18:07,514 INFO L130 PetriNetUnfolder]: 22/191 cut-off events. [2022-11-18 20:18:07,515 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:18:07,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 191 events. 22/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 647 event pairs, 2 based on Foata normal form. 54/235 useless extension candidates. Maximal degree in co-relation 208. Up to 25 conditions per place. [2022-11-18 20:18:07,518 INFO L137 encePairwiseOnDemand]: 93/115 looper letters, 44 selfloop transitions, 11 changer transitions 9/106 dead transitions. [2022-11-18 20:18:07,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 106 transitions, 327 flow [2022-11-18 20:18:07,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:18:07,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 20:18:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 760 transitions. [2022-11-18 20:18:07,549 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5507246376811594 [2022-11-18 20:18:07,550 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 760 transitions. [2022-11-18 20:18:07,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 760 transitions. [2022-11-18 20:18:07,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:18:07,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 760 transitions. [2022-11-18 20:18:07,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 63.333333333333336) internal successors, (760), 12 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:07,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:07,574 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:07,576 INFO L175 Difference]: Start difference. First operand has 99 places, 104 transitions, 211 flow. Second operand 12 states and 760 transitions. [2022-11-18 20:18:07,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 106 transitions, 327 flow [2022-11-18 20:18:07,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 106 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:18:07,592 INFO L231 Difference]: Finished difference. Result has 106 places, 83 transitions, 190 flow [2022-11-18 20:18:07,595 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=190, PETRI_PLACES=106, PETRI_TRANSITIONS=83} [2022-11-18 20:18:07,599 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 7 predicate places. [2022-11-18 20:18:07,599 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 83 transitions, 190 flow [2022-11-18 20:18:07,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 59.09090909090909) internal successors, (650), 11 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:07,600 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:18:07,600 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:07,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:18:07,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-18 20:18:07,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:07,602 INFO L85 PathProgramCache]: Analyzing trace with hash 493874540, now seen corresponding path program 1 times [2022-11-18 20:18:07,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:07,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031085423] [2022-11-18 20:18:07,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:07,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:07,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:07,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:07,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031085423] [2022-11-18 20:18:07,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031085423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:18:07,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:18:07,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:18:07,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913049155] [2022-11-18 20:18:07,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:18:07,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:18:07,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:07,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:18:07,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:18:07,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 115 [2022-11-18 20:18:07,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 83 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:07,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:18:07,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 115 [2022-11-18 20:18:07,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:18:07,990 INFO L130 PetriNetUnfolder]: 24/150 cut-off events. [2022-11-18 20:18:07,991 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 20:18:07,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 150 events. 24/150 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 503 event pairs, 6 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 191. Up to 38 conditions per place. [2022-11-18 20:18:07,992 INFO L137 encePairwiseOnDemand]: 109/115 looper letters, 38 selfloop transitions, 5 changer transitions 1/92 dead transitions. [2022-11-18 20:18:07,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 92 transitions, 296 flow [2022-11-18 20:18:07,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:18:07,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 20:18:07,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 493 transitions. [2022-11-18 20:18:07,995 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6124223602484472 [2022-11-18 20:18:07,995 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 493 transitions. [2022-11-18 20:18:07,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 493 transitions. [2022-11-18 20:18:07,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:18:07,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 493 transitions. [2022-11-18 20:18:07,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:08,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:08,001 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 115.0) internal successors, (920), 8 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:08,001 INFO L175 Difference]: Start difference. First operand has 106 places, 83 transitions, 190 flow. Second operand 7 states and 493 transitions. [2022-11-18 20:18:08,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 92 transitions, 296 flow [2022-11-18 20:18:08,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 274 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-11-18 20:18:08,004 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 174 flow [2022-11-18 20:18:08,005 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2022-11-18 20:18:08,005 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -8 predicate places. [2022-11-18 20:18:08,006 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 174 flow [2022-11-18 20:18:08,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:08,006 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:18:08,007 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:18:08,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:18:08,007 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-18 20:18:08,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:08,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1869758121, now seen corresponding path program 1 times [2022-11-18 20:18:08,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:18:08,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730384667] [2022-11-18 20:18:08,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:18:08,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:18:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:08,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:18:08,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730384667] [2022-11-18 20:18:08,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730384667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:18:08,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:18:08,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 20:18:08,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881037304] [2022-11-18 20:18:08,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:18:08,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:18:08,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:18:08,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:18:08,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:18:08,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 115 [2022-11-18 20:18:08,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 174 flow. Second operand has 14 states, 14 states have (on average 52.0) internal successors, (728), 14 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:08,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:18:08,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 115 [2022-11-18 20:18:08,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:18:08,953 INFO L130 PetriNetUnfolder]: 24/157 cut-off events. [2022-11-18 20:18:08,953 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:18:08,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 157 events. 24/157 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 535 event pairs, 2 based on Foata normal form. 3/156 useless extension candidates. Maximal degree in co-relation 194. Up to 25 conditions per place. [2022-11-18 20:18:08,954 INFO L137 encePairwiseOnDemand]: 101/115 looper letters, 0 selfloop transitions, 0 changer transitions 98/98 dead transitions. [2022-11-18 20:18:08,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 98 transitions, 330 flow [2022-11-18 20:18:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:18:08,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 20:18:08,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 797 transitions. [2022-11-18 20:18:08,958 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46202898550724636 [2022-11-18 20:18:08,958 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 797 transitions. [2022-11-18 20:18:08,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 797 transitions. [2022-11-18 20:18:08,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:18:08,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 797 transitions. [2022-11-18 20:18:08,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 53.13333333333333) internal successors, (797), 15 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:08,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 115.0) internal successors, (1840), 16 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:08,967 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 115.0) internal successors, (1840), 16 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:08,967 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 174 flow. Second operand 15 states and 797 transitions. [2022-11-18 20:18:08,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 98 transitions, 330 flow [2022-11-18 20:18:08,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 98 transitions, 321 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:18:08,970 INFO L231 Difference]: Finished difference. Result has 98 places, 0 transitions, 0 flow [2022-11-18 20:18:08,970 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=98, PETRI_TRANSITIONS=0} [2022-11-18 20:18:08,971 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -1 predicate places. [2022-11-18 20:18:08,971 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 0 transitions, 0 flow [2022-11-18 20:18:08,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 52.0) internal successors, (728), 14 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:08,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-11-18 20:18:08,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-11-18 20:18:08,975 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-11-18 20:18:08,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-11-18 20:18:08,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-11-18 20:18:08,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-11-18 20:18:08,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-11-18 20:18:08,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-11-18 20:18:08,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-11-18 20:18:08,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:18:08,978 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-18 20:18:08,984 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:18:08,984 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:18:08,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:18:08 BasicIcfg [2022-11-18 20:18:08,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:18:08,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:18:08,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:18:08,991 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:18:08,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:18:05" (3/4) ... [2022-11-18 20:18:08,995 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:18:09,001 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-18 20:18:09,005 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-18 20:18:09,006 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:18:09,006 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:18:09,006 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:18:09,041 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:18:09,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:18:09,042 INFO L158 Benchmark]: Toolchain (without parser) took 4801.57ms. Allocated memory was 102.8MB in the beginning and 163.6MB in the end (delta: 60.8MB). Free memory was 69.2MB in the beginning and 104.8MB in the end (delta: -35.6MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2022-11-18 20:18:09,043 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory was 57.0MB in the beginning and 56.9MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:18:09,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.54ms. Allocated memory is still 102.8MB. Free memory was 69.0MB in the beginning and 67.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:18:09,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.95ms. Allocated memory is still 102.8MB. Free memory was 67.0MB in the beginning and 64.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:18:09,044 INFO L158 Benchmark]: Boogie Preprocessor took 56.77ms. Allocated memory is still 102.8MB. Free memory was 64.9MB in the beginning and 63.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:18:09,045 INFO L158 Benchmark]: RCFGBuilder took 618.74ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 63.5MB in the beginning and 109.2MB in the end (delta: -45.7MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-11-18 20:18:09,045 INFO L158 Benchmark]: TraceAbstraction took 3331.26ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 108.5MB in the beginning and 108.0MB in the end (delta: 590.7kB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2022-11-18 20:18:09,045 INFO L158 Benchmark]: Witness Printer took 50.71ms. Allocated memory is still 163.6MB. Free memory was 108.0MB in the beginning and 104.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:18:09,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory was 57.0MB in the beginning and 56.9MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.54ms. Allocated memory is still 102.8MB. Free memory was 69.0MB in the beginning and 67.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.95ms. Allocated memory is still 102.8MB. Free memory was 67.0MB in the beginning and 64.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.77ms. Allocated memory is still 102.8MB. Free memory was 64.9MB in the beginning and 63.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 618.74ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 63.5MB in the beginning and 109.2MB in the end (delta: -45.7MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3331.26ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 108.5MB in the beginning and 108.0MB in the end (delta: 590.7kB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Witness Printer took 50.71ms. Allocated memory is still 163.6MB. Free memory was 108.0MB in the beginning and 104.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 144 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: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 236 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 236 mSDsluCounter, 493 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 409 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 516 IncrementalHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 84 mSDtfsCounter, 516 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=0, InterpolantAutomatonStates: 34, 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, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 468 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! [2022-11-18 20:18:09,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc34f67b-cf6e-4d21-af43-c1dfe23097ef/bin/uautomizer-TMbwUNV5ro/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