./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix014.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix014.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a --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 615dc0a4278e77a094a63ed4629507c6f8d1cda73abba57cd69e8912d83fe5fd --- 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-b5237d8 [2022-11-21 16:49:13,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:49:13,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:49:13,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:49:13,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:49:13,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:49:13,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:49:13,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:49:13,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:49:13,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:49:13,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:49:13,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:49:13,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:49:13,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:49:13,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:49:13,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:49:13,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:49:13,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:49:13,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:49:13,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:49:13,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:49:13,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:49:13,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:49:13,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:49:13,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:49:13,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:49:13,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:49:13,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:49:13,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:49:13,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:49:13,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:49:13,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:49:13,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:49:13,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:49:13,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:49:13,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:49:13,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:49:13,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:49:13,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:49:13,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:49:13,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:49:13,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:49:13,625 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:49:13,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:49:13,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:49:13,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:49:13,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:49:13,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:49:13,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:49:13,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:49:13,629 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:49:13,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:49:13,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:49:13,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:49:13,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:49:13,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:49:13,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:49:13,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:49:13,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:49:13,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:49:13,632 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:49:13,632 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:49:13,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:49:13,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:49:13,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:49:13,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:49:13,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:49:13,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:49:13,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:49:13,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:49:13,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:49:13,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:49:13,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:49:13,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:49:13,636 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:49:13,636 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:49:13,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:49:13,636 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_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 615dc0a4278e77a094a63ed4629507c6f8d1cda73abba57cd69e8912d83fe5fd [2022-11-21 16:49:13,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:49:13,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:49:13,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:49:13,970 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:49:13,971 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:49:13,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix014.opt.i [2022-11-21 16:49:17,057 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:49:17,293 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:49:17,293 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/sv-benchmarks/c/pthread-wmm/mix014.opt.i [2022-11-21 16:49:17,308 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/data/be8b0dc0c/acb28819135c48abbcfd28a8aa4918b1/FLAGb843960b1 [2022-11-21 16:49:17,322 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/data/be8b0dc0c/acb28819135c48abbcfd28a8aa4918b1 [2022-11-21 16:49:17,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:49:17,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:49:17,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:49:17,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:49:17,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:49:17,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:49:17" (1/1) ... [2022-11-21 16:49:17,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c894343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:17, skipping insertion in model container [2022-11-21 16:49:17,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:49:17" (1/1) ... [2022-11-21 16:49:17,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:49:17,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:49:17,578 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/sv-benchmarks/c/pthread-wmm/mix014.opt.i[944,957] [2022-11-21 16:49:17,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:49:17,864 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:49:17,879 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/sv-benchmarks/c/pthread-wmm/mix014.opt.i[944,957] [2022-11-21 16:49:17,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:49:18,011 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:49:18,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18 WrapperNode [2022-11-21 16:49:18,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:49:18,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:49:18,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:49:18,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:49:18,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (1/1) ... [2022-11-21 16:49:18,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (1/1) ... [2022-11-21 16:49:18,106 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 166 [2022-11-21 16:49:18,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:49:18,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:49:18,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:49:18,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:49:18,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (1/1) ... [2022-11-21 16:49:18,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (1/1) ... [2022-11-21 16:49:18,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (1/1) ... [2022-11-21 16:49:18,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (1/1) ... [2022-11-21 16:49:18,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (1/1) ... [2022-11-21 16:49:18,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (1/1) ... [2022-11-21 16:49:18,171 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (1/1) ... [2022-11-21 16:49:18,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (1/1) ... [2022-11-21 16:49:18,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:49:18,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:49:18,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:49:18,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:49:18,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (1/1) ... [2022-11-21 16:49:18,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:49:18,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:49:18,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:49:18,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:49:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:49:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:49:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:49:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:49:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:49:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:49:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:49:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:49:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:49:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 16:49:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 16:49:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-21 16:49:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-21 16:49:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:49:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:49:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:49:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:49:18,277 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:49:18,495 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:49:18,498 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:49:18,930 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:49:19,222 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:49:19,222 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:49:19,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:19 BoogieIcfgContainer [2022-11-21 16:49:19,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:49:19,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:49:19,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:49:19,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:49:19,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:49:17" (1/3) ... [2022-11-21 16:49:19,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27734242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:49:19, skipping insertion in model container [2022-11-21 16:49:19,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:49:18" (2/3) ... [2022-11-21 16:49:19,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27734242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:49:19, skipping insertion in model container [2022-11-21 16:49:19,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:19" (3/3) ... [2022-11-21 16:49:19,234 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014.opt.i [2022-11-21 16:49:19,244 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:49:19,256 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:49:19,256 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-21 16:49:19,256 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:49:19,334 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:49:19,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 143 transitions, 306 flow [2022-11-21 16:49:19,513 INFO L130 PetriNetUnfolder]: 2/139 cut-off events. [2022-11-21 16:49:19,514 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:49:19,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 2/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2022-11-21 16:49:19,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 143 transitions, 306 flow [2022-11-21 16:49:19,532 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 139 transitions, 290 flow [2022-11-21 16:49:19,558 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:49:19,567 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;@7140f46f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:49:19,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-21 16:49:19,588 INFO L130 PetriNetUnfolder]: 0/56 cut-off events. [2022-11-21 16:49:19,589 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:49:19,589 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:49:19,590 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:19,591 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:49:19,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:19,599 INFO L85 PathProgramCache]: Analyzing trace with hash 571235374, now seen corresponding path program 1 times [2022-11-21 16:49:19,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:19,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674990888] [2022-11-21 16:49:19,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:19,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:20,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:20,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:20,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674990888] [2022-11-21 16:49:20,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674990888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:49:20,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:49:20,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:49:20,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748085942] [2022-11-21 16:49:20,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:49:20,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:49:20,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:20,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:49:20,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:49:20,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2022-11-21 16:49:20,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 139 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2022-11-21 16:49:20,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:49:20,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2022-11-21 16:49:20,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:49:21,749 INFO L130 PetriNetUnfolder]: 2548/4941 cut-off events. [2022-11-21 16:49:21,749 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-21 16:49:21,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8722 conditions, 4941 events. 2548/4941 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 38556 event pairs, 2076 based on Foata normal form. 612/3967 useless extension candidates. Maximal degree in co-relation 8663. Up to 3609 conditions per place. [2022-11-21 16:49:21,820 INFO L137 encePairwiseOnDemand]: 128/143 looper letters, 31 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2022-11-21 16:49:21,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 149 transitions, 391 flow [2022-11-21 16:49:21,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:49:21,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:49:21,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2022-11-21 16:49:21,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9300699300699301 [2022-11-21 16:49:21,836 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 399 transitions. [2022-11-21 16:49:21,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 399 transitions. [2022-11-21 16:49:21,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:21,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 399 transitions. [2022-11-21 16:49:21,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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) [2022-11-21 16:49:21,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2022-11-21 16:49:21,851 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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) [2022-11-21 16:49:21,853 INFO L175 Difference]: Start difference. First operand has 150 places, 139 transitions, 290 flow. Second operand 3 states and 399 transitions. [2022-11-21 16:49:21,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 149 transitions, 391 flow [2022-11-21 16:49:21,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 149 transitions, 384 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:49:21,861 INFO L231 Difference]: Finished difference. Result has 148 places, 140 transitions, 327 flow [2022-11-21 16:49:21,863 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=148, PETRI_TRANSITIONS=140} [2022-11-21 16:49:21,867 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, -2 predicate places. [2022-11-21 16:49:21,868 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 140 transitions, 327 flow [2022-11-21 16:49:21,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2022-11-21 16:49:21,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:49:21,869 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:21,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:49:21,869 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:49:21,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:21,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2101544278, now seen corresponding path program 1 times [2022-11-21 16:49:21,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:21,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923950847] [2022-11-21 16:49:21,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:21,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:22,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:22,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923950847] [2022-11-21 16:49:22,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923950847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:49:22,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:49:22,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:49:22,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176548027] [2022-11-21 16:49:22,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:49:22,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:49:22,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:22,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:49:22,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:49:22,045 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2022-11-21 16:49:22,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 140 transitions, 327 flow. Second operand has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 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) [2022-11-21 16:49:22,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:49:22,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2022-11-21 16:49:22,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:49:22,938 INFO L130 PetriNetUnfolder]: 1438/2925 cut-off events. [2022-11-21 16:49:22,939 INFO L131 PetriNetUnfolder]: For 67/69 co-relation queries the response was YES. [2022-11-21 16:49:22,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6600 conditions, 2925 events. 1438/2925 cut-off events. For 67/69 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 23293 event pairs, 177 based on Foata normal form. 2/2234 useless extension candidates. Maximal degree in co-relation 6542. Up to 1268 conditions per place. [2022-11-21 16:49:22,989 INFO L137 encePairwiseOnDemand]: 130/143 looper letters, 39 selfloop transitions, 13 changer transitions 0/165 dead transitions. [2022-11-21 16:49:22,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 165 transitions, 507 flow [2022-11-21 16:49:22,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:49:22,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:49:22,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 524 transitions. [2022-11-21 16:49:22,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.916083916083916 [2022-11-21 16:49:22,993 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 524 transitions. [2022-11-21 16:49:22,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 524 transitions. [2022-11-21 16:49:22,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:22,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 524 transitions. [2022-11-21 16:49:22,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2022-11-21 16:49:22,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 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) [2022-11-21 16:49:23,000 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 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) [2022-11-21 16:49:23,000 INFO L175 Difference]: Start difference. First operand has 148 places, 140 transitions, 327 flow. Second operand 4 states and 524 transitions. [2022-11-21 16:49:23,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 165 transitions, 507 flow [2022-11-21 16:49:23,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 165 transitions, 502 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:49:23,006 INFO L231 Difference]: Finished difference. Result has 152 places, 148 transitions, 425 flow [2022-11-21 16:49:23,006 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=425, PETRI_PLACES=152, PETRI_TRANSITIONS=148} [2022-11-21 16:49:23,007 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, 2 predicate places. [2022-11-21 16:49:23,008 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 148 transitions, 425 flow [2022-11-21 16:49:23,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 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) [2022-11-21 16:49:23,008 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:49:23,009 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:23,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:49:23,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:49:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:23,010 INFO L85 PathProgramCache]: Analyzing trace with hash 93561635, now seen corresponding path program 1 times [2022-11-21 16:49:23,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:23,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867156003] [2022-11-21 16:49:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:23,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:23,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:23,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867156003] [2022-11-21 16:49:23,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867156003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:49:23,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:49:23,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:49:23,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077769421] [2022-11-21 16:49:23,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:49:23,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:49:23,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:23,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:49:23,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:49:23,249 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2022-11-21 16:49:23,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 148 transitions, 425 flow. Second operand has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 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) [2022-11-21 16:49:23,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:49:23,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2022-11-21 16:49:23,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:49:23,636 INFO L130 PetriNetUnfolder]: 571/1343 cut-off events. [2022-11-21 16:49:23,637 INFO L131 PetriNetUnfolder]: For 743/748 co-relation queries the response was YES. [2022-11-21 16:49:23,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3318 conditions, 1343 events. 571/1343 cut-off events. For 743/748 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 8987 event pairs, 57 based on Foata normal form. 264/1467 useless extension candidates. Maximal degree in co-relation 3257. Up to 822 conditions per place. [2022-11-21 16:49:23,662 INFO L137 encePairwiseOnDemand]: 134/143 looper letters, 31 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2022-11-21 16:49:23,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 149 transitions, 465 flow [2022-11-21 16:49:23,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:49:23,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:49:23,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 504 transitions. [2022-11-21 16:49:23,666 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8811188811188811 [2022-11-21 16:49:23,666 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 504 transitions. [2022-11-21 16:49:23,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 504 transitions. [2022-11-21 16:49:23,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:23,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 504 transitions. [2022-11-21 16:49:23,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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) [2022-11-21 16:49:23,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 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) [2022-11-21 16:49:23,671 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 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) [2022-11-21 16:49:23,671 INFO L175 Difference]: Start difference. First operand has 152 places, 148 transitions, 425 flow. Second operand 4 states and 504 transitions. [2022-11-21 16:49:23,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 149 transitions, 465 flow [2022-11-21 16:49:23,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 149 transitions, 442 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-21 16:49:23,687 INFO L231 Difference]: Finished difference. Result has 148 places, 140 transitions, 356 flow [2022-11-21 16:49:23,687 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=356, PETRI_PLACES=148, PETRI_TRANSITIONS=140} [2022-11-21 16:49:23,689 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, -2 predicate places. [2022-11-21 16:49:23,689 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 140 transitions, 356 flow [2022-11-21 16:49:23,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 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) [2022-11-21 16:49:23,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:49:23,690 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:23,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:49:23,691 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:49:23,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1448813102, now seen corresponding path program 1 times [2022-11-21 16:49:23,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:23,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341935710] [2022-11-21 16:49:23,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:23,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:24,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:24,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:24,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341935710] [2022-11-21 16:49:24,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341935710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:49:24,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:49:24,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:49:24,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519990550] [2022-11-21 16:49:24,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:49:24,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:49:24,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:24,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:49:24,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:49:24,031 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2022-11-21 16:49:24,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 140 transitions, 356 flow. Second operand has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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) [2022-11-21 16:49:24,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:49:24,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2022-11-21 16:49:24,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:49:24,373 INFO L130 PetriNetUnfolder]: 418/1116 cut-off events. [2022-11-21 16:49:24,374 INFO L131 PetriNetUnfolder]: For 587/587 co-relation queries the response was YES. [2022-11-21 16:49:24,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2346 conditions, 1116 events. 418/1116 cut-off events. For 587/587 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 7036 event pairs, 78 based on Foata normal form. 0/1064 useless extension candidates. Maximal degree in co-relation 2286. Up to 238 conditions per place. [2022-11-21 16:49:24,385 INFO L137 encePairwiseOnDemand]: 134/143 looper letters, 38 selfloop transitions, 13 changer transitions 4/168 dead transitions. [2022-11-21 16:49:24,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 168 transitions, 550 flow [2022-11-21 16:49:24,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:49:24,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:49:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 644 transitions. [2022-11-21 16:49:24,388 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9006993006993007 [2022-11-21 16:49:24,392 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 644 transitions. [2022-11-21 16:49:24,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 644 transitions. [2022-11-21 16:49:24,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:24,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 644 transitions. [2022-11-21 16:49:24,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 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) [2022-11-21 16:49:24,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 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) [2022-11-21 16:49:24,398 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 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) [2022-11-21 16:49:24,399 INFO L175 Difference]: Start difference. First operand has 148 places, 140 transitions, 356 flow. Second operand 5 states and 644 transitions. [2022-11-21 16:49:24,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 168 transitions, 550 flow [2022-11-21 16:49:24,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 168 transitions, 544 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:49:24,410 INFO L231 Difference]: Finished difference. Result has 151 places, 140 transitions, 392 flow [2022-11-21 16:49:24,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=392, PETRI_PLACES=151, PETRI_TRANSITIONS=140} [2022-11-21 16:49:24,412 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, 1 predicate places. [2022-11-21 16:49:24,413 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 140 transitions, 392 flow [2022-11-21 16:49:24,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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) [2022-11-21 16:49:24,413 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:49:24,414 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:49:24,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:49:24,415 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 16:49:24,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:49:24,416 INFO L85 PathProgramCache]: Analyzing trace with hash 765443609, now seen corresponding path program 1 times [2022-11-21 16:49:24,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:49:24,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349389989] [2022-11-21 16:49:24,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:49:24,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:49:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:49:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:49:24,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:49:24,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349389989] [2022-11-21 16:49:24,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349389989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:49:24,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:49:24,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:49:24,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097907672] [2022-11-21 16:49:24,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:49:24,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:49:24,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:24,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:49:24,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:49:24,671 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2022-11-21 16:49:24,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 392 flow. Second operand has 6 states, 6 states have (on average 119.16666666666667) internal successors, (715), 6 states have internal predecessors, (715), 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) [2022-11-21 16:49:24,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:49:24,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2022-11-21 16:49:24,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:49:24,967 INFO L130 PetriNetUnfolder]: 399/1039 cut-off events. [2022-11-21 16:49:24,967 INFO L131 PetriNetUnfolder]: For 633/637 co-relation queries the response was YES. [2022-11-21 16:49:24,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2548 conditions, 1039 events. 399/1039 cut-off events. For 633/637 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6544 event pairs, 24 based on Foata normal form. 16/1038 useless extension candidates. Maximal degree in co-relation 2487. Up to 238 conditions per place. [2022-11-21 16:49:24,973 INFO L137 encePairwiseOnDemand]: 134/143 looper letters, 0 selfloop transitions, 0 changer transitions 160/160 dead transitions. [2022-11-21 16:49:24,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 160 transitions, 514 flow [2022-11-21 16:49:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:49:24,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:49:24,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 753 transitions. [2022-11-21 16:49:24,975 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8776223776223776 [2022-11-21 16:49:24,976 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 753 transitions. [2022-11-21 16:49:24,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 753 transitions. [2022-11-21 16:49:24,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:49:24,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 753 transitions. [2022-11-21 16:49:24,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 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) [2022-11-21 16:49:24,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 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) [2022-11-21 16:49:24,981 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 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) [2022-11-21 16:49:24,981 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 392 flow. Second operand 6 states and 753 transitions. [2022-11-21 16:49:24,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 160 transitions, 514 flow [2022-11-21 16:49:24,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 160 transitions, 459 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-21 16:49:24,990 INFO L231 Difference]: Finished difference. Result has 146 places, 0 transitions, 0 flow [2022-11-21 16:49:24,990 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=146, PETRI_TRANSITIONS=0} [2022-11-21 16:49:24,991 INFO L288 CegarLoopForPetriNet]: 150 programPoint places, -4 predicate places. [2022-11-21 16:49:24,992 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 0 transitions, 0 flow [2022-11-21 16:49:24,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.16666666666667) internal successors, (715), 6 states have internal predecessors, (715), 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) [2022-11-21 16:49:24,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-21 16:49:24,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-21 16:49:24,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-21 16:49:24,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-21 16:49:24,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-21 16:49:24,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-21 16:49:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-21 16:49:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-21 16:49:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-21 16:49:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-21 16:49:24,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-21 16:49:24,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-21 16:49:24,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-21 16:49:24,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-21 16:49:24,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-21 16:49:24,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-21 16:49:24,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-21 16:49:24,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-21 16:49:25,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-21 16:49:25,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-21 16:49:25,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:49:25,001 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-21 16:49:25,006 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:49:25,007 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:49:25,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:49:25 BasicIcfg [2022-11-21 16:49:25,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:49:25,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:49:25,013 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:49:25,013 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:49:25,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:49:19" (3/4) ... [2022-11-21 16:49:25,016 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:49:25,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 16:49:25,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 16:49:25,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 16:49:25,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-21 16:49:25,027 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-21 16:49:25,027 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 16:49:25,028 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:49:25,028 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:49:25,088 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:49:25,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:49:25,089 INFO L158 Benchmark]: Toolchain (without parser) took 7762.92ms. Allocated memory was 121.6MB in the beginning and 320.9MB in the end (delta: 199.2MB). Free memory was 61.7MB in the beginning and 128.4MB in the end (delta: -66.7MB). Peak memory consumption was 133.9MB. Max. memory is 16.1GB. [2022-11-21 16:49:25,090 INFO L158 Benchmark]: CDTParser took 1.10ms. Allocated memory is still 121.6MB. Free memory was 92.5MB in the beginning and 92.4MB in the end (delta: 68.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:49:25,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 684.93ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 61.5MB in the beginning and 111.4MB in the end (delta: -49.9MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-11-21 16:49:25,090 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.69ms. Allocated memory is still 161.5MB. Free memory was 111.4MB in the beginning and 108.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:49:25,091 INFO L158 Benchmark]: Boogie Preprocessor took 73.69ms. Allocated memory is still 161.5MB. Free memory was 108.7MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:49:25,091 INFO L158 Benchmark]: RCFGBuilder took 1038.52ms. Allocated memory is still 161.5MB. Free memory was 106.6MB in the beginning and 116.3MB in the end (delta: -9.8MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-11-21 16:49:25,091 INFO L158 Benchmark]: TraceAbstraction took 5784.98ms. Allocated memory was 161.5MB in the beginning and 320.9MB in the end (delta: 159.4MB). Free memory was 116.0MB in the beginning and 131.6MB in the end (delta: -15.6MB). Peak memory consumption was 143.8MB. Max. memory is 16.1GB. [2022-11-21 16:49:25,092 INFO L158 Benchmark]: Witness Printer took 76.06ms. Allocated memory is still 320.9MB. Free memory was 131.6MB in the beginning and 128.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:49:25,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10ms. Allocated memory is still 121.6MB. Free memory was 92.5MB in the beginning and 92.4MB in the end (delta: 68.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 684.93ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 61.5MB in the beginning and 111.4MB in the end (delta: -49.9MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.69ms. Allocated memory is still 161.5MB. Free memory was 111.4MB in the beginning and 108.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.69ms. Allocated memory is still 161.5MB. Free memory was 108.7MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1038.52ms. Allocated memory is still 161.5MB. Free memory was 106.6MB in the beginning and 116.3MB in the end (delta: -9.8MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5784.98ms. Allocated memory was 161.5MB in the beginning and 320.9MB in the end (delta: 159.4MB). Free memory was 116.0MB in the beginning and 131.6MB in the end (delta: -15.6MB). Peak memory consumption was 143.8MB. Max. memory is 16.1GB. * Witness Printer took 76.06ms. Allocated memory is still 320.9MB. Free memory was 131.6MB in the beginning and 128.4MB 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: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: 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 9 procedures, 185 locations, 20 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: 5.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 275 IncrementalHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 17 mSDtfsCounter, 275 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=425occurred in iteration=2, InterpolantAutomatonStates: 22, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 348 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 343 ConstructedInterpolants, 0 QuantifiedInterpolants, 949 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:49:25,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a417d16-808f-4ff5-9379-b48bc0dbb40d/bin/uautomizer-vX5HgA9Q3a/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