./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/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_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/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_aa7483e6-de72-46ac-9887-4fcb34522b4f/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 ad7a565ad4ebe037ce541fa36cdf85746d072cc2b5132ab8ae2e3025ff70fea5 --- 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 20:04:41,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:04:41,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:04:41,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:04:41,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:04:41,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:04:41,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:04:41,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:04:41,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:04:41,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:04:41,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:04:41,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:04:41,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:04:41,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:04:41,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:04:41,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:04:41,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:04:41,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:04:41,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:04:41,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:04:41,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:04:41,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:04:41,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:04:41,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:04:41,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:04:41,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:04:41,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:04:41,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:04:41,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:04:41,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:04:41,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:04:41,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:04:41,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:04:41,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:04:41,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:04:41,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:04:41,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:04:41,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:04:41,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:04:41,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:04:41,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:04:41,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:04:41,987 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:04:41,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:04:41,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:04:41,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:04:41,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:04:41,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:04:41,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:04:41,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:04:41,990 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:04:41,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:04:41,991 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:04:41,991 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:04:41,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:04:41,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:04:41,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:04:41,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:04:41,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:04:41,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:04:41,992 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:04:41,993 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:04:41,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:04:41,993 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:04:41,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:04:41,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:04:41,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:04:41,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:04:41,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:04:41,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:04:41,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:04:41,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:04:41,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:04:41,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:04:41,996 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:04:41,996 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:04:41,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:04:41,996 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_aa7483e6-de72-46ac-9887-4fcb34522b4f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad7a565ad4ebe037ce541fa36cdf85746d072cc2b5132ab8ae2e3025ff70fea5 [2022-11-18 20:04:42,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:04:42,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:04:42,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:04:42,278 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:04:42,279 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:04:42,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i [2022-11-18 20:04:42,344 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/data/3ecc5cb24/81181551bf8e4511bfd17c2d1e5b4e46/FLAGab1a94d39 [2022-11-18 20:04:42,872 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:04:42,881 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i [2022-11-18 20:04:42,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/data/3ecc5cb24/81181551bf8e4511bfd17c2d1e5b4e46/FLAGab1a94d39 [2022-11-18 20:04:43,194 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/data/3ecc5cb24/81181551bf8e4511bfd17c2d1e5b4e46 [2022-11-18 20:04:43,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:04:43,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:04:43,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:04:43,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:04:43,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:04:43,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:43,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7993eec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43, skipping insertion in model container [2022-11-18 20:04:43,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:43,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:04:43,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:04:43,544 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_aa7483e6-de72-46ac-9887-4fcb34522b4f/sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i[967,980] [2022-11-18 20:04:43,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:04:43,854 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:04:43,871 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_aa7483e6-de72-46ac-9887-4fcb34522b4f/sv-benchmarks/c/pthread-wmm/safe004_power.opt_pso.opt_rmo.opt.i[967,980] [2022-11-18 20:04:43,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:04:43,992 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:04:43,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43 WrapperNode [2022-11-18 20:04:43,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:04:43,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:04:43,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:04:43,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:04:44,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:44,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:44,053 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2022-11-18 20:04:44,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:04:44,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:04:44,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:04:44,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:04:44,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:44,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:44,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:44,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:44,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:44,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:44,106 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:44,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:44,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:04:44,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:04:44,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:04:44,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:04:44,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (1/1) ... [2022-11-18 20:04:44,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:04:44,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:04:44,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:04:44,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:04:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:04:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:04:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:04:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:04:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:04:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 20:04:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 20:04:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 20:04:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 20:04:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 20:04:44,198 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 20:04:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:04:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:04:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:04:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:04:44,200 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 20:04:44,344 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:04:44,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:04:44,791 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:04:45,011 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:04:45,012 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:04:45,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:45 BoogieIcfgContainer [2022-11-18 20:04:45,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:04:45,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:04:45,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:04:45,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:04:45,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:04:43" (1/3) ... [2022-11-18 20:04:45,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5608081f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:04:45, skipping insertion in model container [2022-11-18 20:04:45,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:43" (2/3) ... [2022-11-18 20:04:45,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5608081f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:04:45, skipping insertion in model container [2022-11-18 20:04:45,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:45" (3/3) ... [2022-11-18 20:04:45,025 INFO L112 eAbstractionObserver]: Analyzing ICFG safe004_power.opt_pso.opt_rmo.opt.i [2022-11-18 20:04:45,034 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:04:45,045 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:04:45,046 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 20:04:45,046 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:04:45,137 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:04:45,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 118 transitions, 251 flow [2022-11-18 20:04:45,229 INFO L130 PetriNetUnfolder]: 2/115 cut-off events. [2022-11-18 20:04:45,230 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:04:45,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 115 events. 2/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-11-18 20:04:45,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 118 transitions, 251 flow [2022-11-18 20:04:45,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 115 transitions, 239 flow [2022-11-18 20:04:45,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:04:45,258 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;@6880d88e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:04:45,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-18 20:04:45,271 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-11-18 20:04:45,272 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:04:45,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:04:45,273 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] [2022-11-18 20:04:45,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:04:45,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:45,279 INFO L85 PathProgramCache]: Analyzing trace with hash -513348662, now seen corresponding path program 1 times [2022-11-18 20:04:45,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:45,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505232061] [2022-11-18 20:04:45,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:45,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:45,726 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 20:04:45,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:45,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505232061] [2022-11-18 20:04:45,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505232061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:45,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:45,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:04:45,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213111238] [2022-11-18 20:04:45,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:45,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:04:45,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:45,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:04:45,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:04:45,799 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 118 [2022-11-18 20:04:45,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 115 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 20:04:45,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:04:45,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 118 [2022-11-18 20:04:45,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:04:46,363 INFO L130 PetriNetUnfolder]: 586/1495 cut-off events. [2022-11-18 20:04:46,363 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-18 20:04:46,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 1495 events. 586/1495 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 10482 event pairs, 153 based on Foata normal form. 46/1218 useless extension candidates. Maximal degree in co-relation 2423. Up to 801 conditions per place. [2022-11-18 20:04:46,384 INFO L137 encePairwiseOnDemand]: 106/118 looper letters, 28 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2022-11-18 20:04:46,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 124 transitions, 327 flow [2022-11-18 20:04:46,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:04:46,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:04:46,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2022-11-18 20:04:46,405 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.923728813559322 [2022-11-18 20:04:46,406 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions. [2022-11-18 20:04:46,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions. [2022-11-18 20:04:46,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:04:46,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions. [2022-11-18 20:04:46,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 20:04:46,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 20:04:46,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 20:04:46,430 INFO L175 Difference]: Start difference. First operand has 123 places, 115 transitions, 239 flow. Second operand 3 states and 327 transitions. [2022-11-18 20:04:46,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 124 transitions, 327 flow [2022-11-18 20:04:46,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 124 transitions, 322 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:04:46,444 INFO L231 Difference]: Finished difference. Result has 122 places, 115 transitions, 266 flow [2022-11-18 20:04:46,447 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=122, PETRI_TRANSITIONS=115} [2022-11-18 20:04:46,452 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -1 predicate places. [2022-11-18 20:04:46,452 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 115 transitions, 266 flow [2022-11-18 20:04:46,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 20:04:46,453 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:04:46,454 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] [2022-11-18 20:04:46,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:04:46,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:04:46,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:46,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1312539768, now seen corresponding path program 1 times [2022-11-18 20:04:46,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:46,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607000655] [2022-11-18 20:04:46,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:46,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:46,751 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 20:04:46,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:46,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607000655] [2022-11-18 20:04:46,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607000655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:46,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:46,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:04:46,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390877057] [2022-11-18 20:04:46,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:46,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:04:46,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:46,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:04:46,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:04:46,764 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 118 [2022-11-18 20:04:46,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 115 transitions, 266 flow. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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 20:04:46,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:04:46,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 118 [2022-11-18 20:04:46,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:04:47,202 INFO L130 PetriNetUnfolder]: 420/1239 cut-off events. [2022-11-18 20:04:47,203 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-11-18 20:04:47,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2306 conditions, 1239 events. 420/1239 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 8644 event pairs, 89 based on Foata normal form. 0/1068 useless extension candidates. Maximal degree in co-relation 2255. Up to 387 conditions per place. [2022-11-18 20:04:47,215 INFO L137 encePairwiseOnDemand]: 108/118 looper letters, 33 selfloop transitions, 10 changer transitions 3/138 dead transitions. [2022-11-18 20:04:47,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 138 transitions, 422 flow [2022-11-18 20:04:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:04:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:04:47,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2022-11-18 20:04:47,219 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9088983050847458 [2022-11-18 20:04:47,219 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 429 transitions. [2022-11-18 20:04:47,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 429 transitions. [2022-11-18 20:04:47,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:04:47,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 429 transitions. [2022-11-18 20:04:47,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 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 20:04:47,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 20:04:47,224 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 20:04:47,224 INFO L175 Difference]: Start difference. First operand has 122 places, 115 transitions, 266 flow. Second operand 4 states and 429 transitions. [2022-11-18 20:04:47,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 138 transitions, 422 flow [2022-11-18 20:04:47,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 138 transitions, 418 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:04:47,229 INFO L231 Difference]: Finished difference. Result has 126 places, 118 transitions, 322 flow [2022-11-18 20:04:47,230 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=126, PETRI_TRANSITIONS=118} [2022-11-18 20:04:47,230 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 3 predicate places. [2022-11-18 20:04:47,231 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 118 transitions, 322 flow [2022-11-18 20:04:47,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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 20:04:47,231 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:04:47,231 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] [2022-11-18 20:04:47,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:04:47,232 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:04:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:47,233 INFO L85 PathProgramCache]: Analyzing trace with hash -584914643, now seen corresponding path program 1 times [2022-11-18 20:04:47,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:47,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783757945] [2022-11-18 20:04:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:47,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:47,348 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 20:04:47,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:47,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783757945] [2022-11-18 20:04:47,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783757945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:47,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:47,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:04:47,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539041667] [2022-11-18 20:04:47,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:47,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:04:47,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:47,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:04:47,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:04:47,353 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 118 [2022-11-18 20:04:47,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 118 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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 20:04:47,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:04:47,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 118 [2022-11-18 20:04:47,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:04:47,655 INFO L130 PetriNetUnfolder]: 282/971 cut-off events. [2022-11-18 20:04:47,656 INFO L131 PetriNetUnfolder]: For 485/485 co-relation queries the response was YES. [2022-11-18 20:04:47,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1799 conditions, 971 events. 282/971 cut-off events. For 485/485 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 6478 event pairs, 77 based on Foata normal form. 70/994 useless extension candidates. Maximal degree in co-relation 1745. Up to 316 conditions per place. [2022-11-18 20:04:47,665 INFO L137 encePairwiseOnDemand]: 111/118 looper letters, 25 selfloop transitions, 4 changer transitions 0/121 dead transitions. [2022-11-18 20:04:47,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 121 transitions, 360 flow [2022-11-18 20:04:47,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:04:47,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:04:47,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 412 transitions. [2022-11-18 20:04:47,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8728813559322034 [2022-11-18 20:04:47,670 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 412 transitions. [2022-11-18 20:04:47,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 412 transitions. [2022-11-18 20:04:47,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:04:47,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 412 transitions. [2022-11-18 20:04:47,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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 20:04:47,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 20:04:47,676 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 20:04:47,676 INFO L175 Difference]: Start difference. First operand has 126 places, 118 transitions, 322 flow. Second operand 4 states and 412 transitions. [2022-11-18 20:04:47,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 121 transitions, 360 flow [2022-11-18 20:04:47,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 121 transitions, 342 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-18 20:04:47,684 INFO L231 Difference]: Finished difference. Result has 123 places, 112 transitions, 270 flow [2022-11-18 20:04:47,685 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=270, PETRI_PLACES=123, PETRI_TRANSITIONS=112} [2022-11-18 20:04:47,686 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, 0 predicate places. [2022-11-18 20:04:47,686 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 112 transitions, 270 flow [2022-11-18 20:04:47,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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 20:04:47,687 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:04:47,687 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:04:47,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:04:47,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-18 20:04:47,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:47,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1556316027, now seen corresponding path program 1 times [2022-11-18 20:04:47,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:47,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746903069] [2022-11-18 20:04:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:47,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:47,944 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 20:04:47,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:47,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746903069] [2022-11-18 20:04:47,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746903069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:47,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:47,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:04:47,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649265705] [2022-11-18 20:04:47,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:47,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:04:47,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:47,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:04:47,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:04:47,954 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 118 [2022-11-18 20:04:47,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 112 transitions, 270 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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 20:04:47,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:04:47,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 118 [2022-11-18 20:04:47,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:04:48,198 INFO L130 PetriNetUnfolder]: 273/950 cut-off events. [2022-11-18 20:04:48,198 INFO L131 PetriNetUnfolder]: For 381/381 co-relation queries the response was YES. [2022-11-18 20:04:48,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1686 conditions, 950 events. 273/950 cut-off events. For 381/381 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 6278 event pairs, 77 based on Foata normal form. 12/922 useless extension candidates. Maximal degree in co-relation 1633. Up to 199 conditions per place. [2022-11-18 20:04:48,203 INFO L137 encePairwiseOnDemand]: 111/118 looper letters, 0 selfloop transitions, 0 changer transitions 126/126 dead transitions. [2022-11-18 20:04:48,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 126 transitions, 360 flow [2022-11-18 20:04:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:04:48,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:04:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 512 transitions. [2022-11-18 20:04:48,205 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8677966101694915 [2022-11-18 20:04:48,206 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 512 transitions. [2022-11-18 20:04:48,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 512 transitions. [2022-11-18 20:04:48,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:04:48,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 512 transitions. [2022-11-18 20:04:48,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 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 20:04:48,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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 20:04:48,214 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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 20:04:48,215 INFO L175 Difference]: Start difference. First operand has 123 places, 112 transitions, 270 flow. Second operand 5 states and 512 transitions. [2022-11-18 20:04:48,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 126 transitions, 360 flow [2022-11-18 20:04:48,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 126 transitions, 345 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:04:48,218 INFO L231 Difference]: Finished difference. Result has 120 places, 0 transitions, 0 flow [2022-11-18 20:04:48,219 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=120, PETRI_TRANSITIONS=0} [2022-11-18 20:04:48,221 INFO L288 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2022-11-18 20:04:48,221 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 0 transitions, 0 flow [2022-11-18 20:04:48,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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 20:04:48,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-18 20:04:48,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-18 20:04:48,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-18 20:04:48,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-18 20:04:48,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-18 20:04:48,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-18 20:04:48,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-18 20:04:48,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-18 20:04:48,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-18 20:04:48,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-18 20:04:48,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-18 20:04:48,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-18 20:04:48,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-18 20:04:48,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-18 20:04:48,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-18 20:04:48,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:04:48,231 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 20:04:48,237 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:04:48,237 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:04:48,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:04:48 BasicIcfg [2022-11-18 20:04:48,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:04:48,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:04:48,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:04:48,251 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:04:48,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:45" (3/4) ... [2022-11-18 20:04:48,254 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:04:48,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-18 20:04:48,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-18 20:04:48,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-18 20:04:48,266 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2022-11-18 20:04:48,266 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-18 20:04:48,267 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:04:48,267 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:04:48,319 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:04:48,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:04:48,322 INFO L158 Benchmark]: Toolchain (without parser) took 5122.10ms. Allocated memory was 109.1MB in the beginning and 180.4MB in the end (delta: 71.3MB). Free memory was 68.8MB in the beginning and 102.9MB in the end (delta: -34.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-18 20:04:48,322 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:04:48,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 792.08ms. Allocated memory is still 109.1MB. Free memory was 68.6MB in the beginning and 72.1MB in the end (delta: -3.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-11-18 20:04:48,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.91ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 69.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:48,323 INFO L158 Benchmark]: Boogie Preprocessor took 56.88ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 67.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:48,324 INFO L158 Benchmark]: RCFGBuilder took 902.82ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 67.3MB in the beginning and 98.6MB in the end (delta: -31.3MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-11-18 20:04:48,324 INFO L158 Benchmark]: TraceAbstraction took 3232.02ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 98.0MB in the beginning and 106.1MB in the end (delta: -8.1MB). Peak memory consumption was 97.0MB. Max. memory is 16.1GB. [2022-11-18 20:04:48,324 INFO L158 Benchmark]: Witness Printer took 70.49ms. Allocated memory is still 180.4MB. Free memory was 106.1MB in the beginning and 102.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:48,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 792.08ms. Allocated memory is still 109.1MB. Free memory was 68.6MB in the beginning and 72.1MB in the end (delta: -3.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.91ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 69.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.88ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 67.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 902.82ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 67.3MB in the beginning and 98.6MB in the end (delta: -31.3MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3232.02ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 98.0MB in the beginning and 106.1MB in the end (delta: -8.1MB). Peak memory consumption was 97.0MB. Max. memory is 16.1GB. * Witness Printer took 70.49ms. Allocated memory is still 180.4MB. Free memory was 106.1MB in the beginning and 102.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: 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 7 procedures, 150 locations, 15 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: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 10 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=322occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 232 ConstructedInterpolants, 0 QuantifiedInterpolants, 536 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:04:48,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7483e6-de72-46ac-9887-4fcb34522b4f/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