./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63f865703c59d821a54141355edec3427193a51b37abbaa1f96833fe96db9b5e --- 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-6b4ec56 [2022-11-20 21:12:37,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:12:37,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:12:37,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:12:37,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:12:37,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:12:37,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:12:37,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:12:37,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:12:37,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:12:37,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:12:37,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:12:37,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:12:37,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:12:37,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:12:37,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:12:37,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:12:37,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:12:37,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:12:37,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:12:37,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:12:37,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:12:37,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:12:37,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:12:37,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:12:37,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:12:37,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:12:37,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:12:37,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:12:37,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:12:37,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:12:37,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:12:37,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:12:37,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:12:37,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:12:37,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:12:37,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:12:37,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:12:37,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:12:37,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:12:37,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:12:37,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-20 21:12:37,654 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:12:37,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:12:37,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:12:37,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:12:37,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:12:37,657 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:12:37,657 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:12:37,657 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:12:37,657 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:12:37,658 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:12:37,659 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:12:37,659 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:12:37,659 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:12:37,659 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:12:37,660 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:12:37,660 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:12:37,660 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:12:37,660 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:12:37,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:12:37,662 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 21:12:37,662 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 21:12:37,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:12:37,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 21:12:37,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:12:37,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:12:37,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:12:37,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:12:37,664 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 21:12:37,664 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 21:12:37,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:12:37,664 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:12:37,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:12:37,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:12:37,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:12:37,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:12:37,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:12:37,666 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:12:37,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:12:37,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:12:37,667 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:12:37,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:12:37,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:12:37,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:12:37,668 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_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63f865703c59d821a54141355edec3427193a51b37abbaa1f96833fe96db9b5e [2022-11-20 21:12:37,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:12:38,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:12:38,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:12:38,012 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:12:38,012 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:12:38,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i [2022-11-20 21:12:41,023 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:12:41,306 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:12:41,306 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i [2022-11-20 21:12:41,346 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/data/1d5578a3b/58c5222dd0404a048b62059337be0cb2/FLAG5e1d0ce5e [2022-11-20 21:12:41,362 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/data/1d5578a3b/58c5222dd0404a048b62059337be0cb2 [2022-11-20 21:12:41,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:12:41,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:12:41,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:12:41,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:12:41,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:12:41,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:41,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3bf15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41, skipping insertion in model container [2022-11-20 21:12:41,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:41,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:12:41,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:12:41,599 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_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i[993,1006] [2022-11-20 21:12:41,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:12:41,894 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:12:41,906 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_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i[993,1006] [2022-11-20 21:12:41,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:12:41,997 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:12:41,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41 WrapperNode [2022-11-20 21:12:41,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:12:41,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:12:41,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:12:42,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:12:42,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:42,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:42,064 INFO L138 Inliner]: procedures = 177, calls = 85, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 182 [2022-11-20 21:12:42,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:12:42,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:12:42,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:12:42,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:12:42,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:42,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:42,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:42,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:42,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:42,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:42,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:42,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:42,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:12:42,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:12:42,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:12:42,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:12:42,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (1/1) ... [2022-11-20 21:12:42,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:12:42,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:12:42,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:12:42,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:12:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 21:12:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 21:12:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 21:12:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:12:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:12:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:12:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 21:12:42,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 21:12:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 21:12:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 21:12:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 21:12:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 21:12:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 21:12:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 21:12:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:12:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 21:12:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:12:42,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:12:42,204 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 21:12:42,468 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:12:42,470 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:12:43,023 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:12:43,482 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:12:43,482 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 21:12:43,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:12:43 BoogieIcfgContainer [2022-11-20 21:12:43,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:12:43,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:12:43,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:12:43,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:12:43,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:12:41" (1/3) ... [2022-11-20 21:12:43,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d9ff99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:12:43, skipping insertion in model container [2022-11-20 21:12:43,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:12:41" (2/3) ... [2022-11-20 21:12:43,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d9ff99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:12:43, skipping insertion in model container [2022-11-20 21:12:43,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:12:43" (3/3) ... [2022-11-20 21:12:43,500 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_rmo.oepc.i [2022-11-20 21:12:43,509 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 21:12:43,520 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:12:43,520 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 21:12:43,521 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 21:12:43,613 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 21:12:43,663 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 21:12:43,687 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 157 transitions, 334 flow [2022-11-20 21:12:43,692 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 157 transitions, 334 flow [2022-11-20 21:12:43,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 157 transitions, 334 flow [2022-11-20 21:12:43,779 INFO L130 PetriNetUnfolder]: 2/153 cut-off events. [2022-11-20 21:12:43,785 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 21:12:43,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 153 events. 2/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-11-20 21:12:43,794 INFO L119 LiptonReduction]: Number of co-enabled transitions 3600 [2022-11-20 21:13:01,001 INFO L134 LiptonReduction]: Checked pairs total: 12048 [2022-11-20 21:13:01,001 INFO L136 LiptonReduction]: Total number of compositions: 140 [2022-11-20 21:13:01,009 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 36 transitions, 92 flow [2022-11-20 21:13:01,332 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5530 states, 5450 states have (on average 4.297247706422018) internal successors, (23420), 5529 states have internal predecessors, (23420), 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) [2022-11-20 21:13:01,359 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:13:01,368 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=FINITE_AUTOMATA, 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;@250172c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:13:01,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-20 21:13:01,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 5530 states, 5450 states have (on average 4.297247706422018) internal successors, (23420), 5529 states have internal predecessors, (23420), 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) [2022-11-20 21:13:01,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 21:13:01,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:13:01,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 21:13:01,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 21:13:01,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:13:01,406 INFO L85 PathProgramCache]: Analyzing trace with hash 26240584, now seen corresponding path program 1 times [2022-11-20 21:13:01,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:13:01,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588220501] [2022-11-20 21:13:01,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:13:01,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:13:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:13:01,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:13:01,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:13:01,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588220501] [2022-11-20 21:13:01,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588220501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:13:01,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:13:01,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 21:13:01,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513640457] [2022-11-20 21:13:01,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:13:01,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:13:01,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:13:01,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:13:01,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:13:01,924 INFO L87 Difference]: Start difference. First operand has 5530 states, 5450 states have (on average 4.297247706422018) internal successors, (23420), 5529 states have internal predecessors, (23420), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-20 21:13:02,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:13:02,135 INFO L93 Difference]: Finished difference Result 2978 states and 10189 transitions. [2022-11-20 21:13:02,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:13:02,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-11-20 21:13:02,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:13:02,174 INFO L225 Difference]: With dead ends: 2978 [2022-11-20 21:13:02,175 INFO L226 Difference]: Without dead ends: 2978 [2022-11-20 21:13:02,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:13:02,179 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:13:02,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 8 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:13:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2022-11-20 21:13:02,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2978. [2022-11-20 21:13:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2914 states have (on average 3.4965682910089226) internal successors, (10189), 2977 states have internal predecessors, (10189), 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) [2022-11-20 21:13:02,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 10189 transitions. [2022-11-20 21:13:02,351 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 10189 transitions. Word has length 4 [2022-11-20 21:13:02,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:13:02,351 INFO L495 AbstractCegarLoop]: Abstraction has 2978 states and 10189 transitions. [2022-11-20 21:13:02,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-20 21:13:02,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 10189 transitions. [2022-11-20 21:13:02,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 21:13:02,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:13:02,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:13:02,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:13:02,353 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 21:13:02,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:13:02,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1477807036, now seen corresponding path program 1 times [2022-11-20 21:13:02,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:13:02,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937479180] [2022-11-20 21:13:02,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:13:02,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:13:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:13:02,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:13:02,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:13:02,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937479180] [2022-11-20 21:13:02,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937479180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:13:02,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:13:02,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:13:02,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291746894] [2022-11-20 21:13:02,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:13:02,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:13:02,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:13:02,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:13:02,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:13:02,543 INFO L87 Difference]: Start difference. First operand 2978 states and 10189 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-20 21:13:02,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:13:02,703 INFO L93 Difference]: Finished difference Result 1714 states and 5755 transitions. [2022-11-20 21:13:02,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:13:02,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2022-11-20 21:13:02,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:13:02,716 INFO L225 Difference]: With dead ends: 1714 [2022-11-20 21:13:02,717 INFO L226 Difference]: Without dead ends: 1714 [2022-11-20 21:13:02,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:13:02,718 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 31 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:13:02,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 8 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:13:02,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2022-11-20 21:13:02,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1714. [2022-11-20 21:13:02,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1700 states have (on average 3.385294117647059) internal successors, (5755), 1713 states have internal predecessors, (5755), 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) [2022-11-20 21:13:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 5755 transitions. [2022-11-20 21:13:02,843 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 5755 transitions. Word has length 8 [2022-11-20 21:13:02,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:13:02,844 INFO L495 AbstractCegarLoop]: Abstraction has 1714 states and 5755 transitions. [2022-11-20 21:13:02,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-20 21:13:02,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 5755 transitions. [2022-11-20 21:13:02,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 21:13:02,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:13:02,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:13:02,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 21:13:02,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 21:13:02,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:13:02,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1432621451, now seen corresponding path program 1 times [2022-11-20 21:13:02,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:13:02,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098689831] [2022-11-20 21:13:02,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:13:02,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:13:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:13:02,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:13:02,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:13:02,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098689831] [2022-11-20 21:13:02,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098689831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:13:02,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:13:02,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:13:02,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138953611] [2022-11-20 21:13:02,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:13:02,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 21:13:02,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:13:02,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 21:13:02,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:13:02,989 INFO L87 Difference]: Start difference. First operand 1714 states and 5755 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-20 21:13:03,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:13:03,137 INFO L93 Difference]: Finished difference Result 778 states and 2207 transitions. [2022-11-20 21:13:03,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 21:13:03,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2022-11-20 21:13:03,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:13:03,142 INFO L225 Difference]: With dead ends: 778 [2022-11-20 21:13:03,143 INFO L226 Difference]: Without dead ends: 778 [2022-11-20 21:13:03,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 21:13:03,144 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:13:03,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 10 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:13:03,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-11-20 21:13:03,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 778. [2022-11-20 21:13:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 768 states have (on average 2.8736979166666665) internal successors, (2207), 777 states have internal predecessors, (2207), 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) [2022-11-20 21:13:03,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 2207 transitions. [2022-11-20 21:13:03,169 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 2207 transitions. Word has length 9 [2022-11-20 21:13:03,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:13:03,169 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 2207 transitions. [2022-11-20 21:13:03,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-20 21:13:03,169 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 2207 transitions. [2022-11-20 21:13:03,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 21:13:03,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:13:03,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:13:03,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 21:13:03,173 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 21:13:03,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:13:03,174 INFO L85 PathProgramCache]: Analyzing trace with hash 516562132, now seen corresponding path program 1 times [2022-11-20 21:13:03,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:13:03,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756416994] [2022-11-20 21:13:03,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:13:03,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:13:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:13:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:13:03,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:13:03,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756416994] [2022-11-20 21:13:03,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756416994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:13:03,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:13:03,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:13:03,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118599886] [2022-11-20 21:13:03,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:13:03,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 21:13:03,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:13:03,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 21:13:03,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 21:13:03,317 INFO L87 Difference]: Start difference. First operand 778 states and 2207 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-20 21:13:03,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:13:03,499 INFO L93 Difference]: Finished difference Result 445 states and 1256 transitions. [2022-11-20 21:13:03,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 21:13:03,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) Word has length 15 [2022-11-20 21:13:03,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:13:03,502 INFO L225 Difference]: With dead ends: 445 [2022-11-20 21:13:03,502 INFO L226 Difference]: Without dead ends: 445 [2022-11-20 21:13:03,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 21:13:03,503 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 40 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:13:03,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 12 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 21:13:03,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-20 21:13:03,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2022-11-20 21:13:03,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 441 states have (on average 2.8480725623582765) internal successors, (1256), 444 states have internal predecessors, (1256), 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) [2022-11-20 21:13:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1256 transitions. [2022-11-20 21:13:03,523 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1256 transitions. Word has length 15 [2022-11-20 21:13:03,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:13:03,523 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 1256 transitions. [2022-11-20 21:13:03,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-20 21:13:03,524 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1256 transitions. [2022-11-20 21:13:03,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 21:13:03,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:13:03,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:13:03,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 21:13:03,531 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 21:13:03,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:13:03,532 INFO L85 PathProgramCache]: Analyzing trace with hash 847016795, now seen corresponding path program 1 times [2022-11-20 21:13:03,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:13:03,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91120336] [2022-11-20 21:13:03,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:13:03,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:13:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:13:03,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:13:03,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:13:03,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91120336] [2022-11-20 21:13:03,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91120336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:13:03,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:13:03,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 21:13:03,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415259255] [2022-11-20 21:13:03,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:13:03,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 21:13:03,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:13:03,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 21:13:03,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 21:13:03,770 INFO L87 Difference]: Start difference. First operand 445 states and 1256 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2022-11-20 21:13:03,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:13:03,908 INFO L93 Difference]: Finished difference Result 393 states and 1168 transitions. [2022-11-20 21:13:03,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 21:13:03,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) Word has length 20 [2022-11-20 21:13:03,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:13:03,909 INFO L225 Difference]: With dead ends: 393 [2022-11-20 21:13:03,909 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 21:13:03,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 21:13:03,910 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 80 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:13:03,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 8 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 21:13:03,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 21:13:03,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 21:13:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-20 21:13:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 21:13:03,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-11-20 21:13:03,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:13:03,911 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 21:13:03,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2022-11-20 21:13:03,912 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 21:13:03,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 21:13:03,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-20 21:13:03,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-20 21:13:03,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-20 21:13:03,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-20 21:13:03,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-20 21:13:03,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-20 21:13:03,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-20 21:13:03,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-20 21:13:03,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-20 21:13:03,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-20 21:13:03,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-20 21:13:03,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-20 21:13:03,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-20 21:13:03,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-20 21:13:03,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-20 21:13:03,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-20 21:13:03,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-20 21:13:03,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-20 21:13:03,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-20 21:13:03,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-20 21:13:03,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 21:13:03,923 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 21:13:03,928 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 21:13:03,928 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:13:03,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:13:03 BasicIcfg [2022-11-20 21:13:03,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:13:03,931 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:13:03,931 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:13:03,932 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:13:03,932 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:12:43" (3/4) ... [2022-11-20 21:13:03,935 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 21:13:03,940 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 21:13:03,940 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 21:13:03,940 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-20 21:13:03,940 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-20 21:13:03,950 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2022-11-20 21:13:03,950 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-20 21:13:03,950 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 21:13:03,951 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 21:13:04,005 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 21:13:04,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:13:04,006 INFO L158 Benchmark]: Toolchain (without parser) took 22634.22ms. Allocated memory was 182.5MB in the beginning and 232.8MB in the end (delta: 50.3MB). Free memory was 148.6MB in the beginning and 144.0MB in the end (delta: 4.6MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2022-11-20 21:13:04,006 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 130.0MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:13:04,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.96ms. Allocated memory is still 182.5MB. Free memory was 148.6MB in the beginning and 123.8MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 21:13:04,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.70ms. Allocated memory is still 182.5MB. Free memory was 123.8MB in the beginning and 120.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 21:13:04,007 INFO L158 Benchmark]: Boogie Preprocessor took 36.90ms. Allocated memory is still 182.5MB. Free memory was 120.5MB in the beginning and 118.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:13:04,008 INFO L158 Benchmark]: RCFGBuilder took 1382.46ms. Allocated memory is still 182.5MB. Free memory was 118.4MB in the beginning and 132.1MB in the end (delta: -13.7MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-20 21:13:04,008 INFO L158 Benchmark]: TraceAbstraction took 20442.26ms. Allocated memory was 182.5MB in the beginning and 232.8MB in the end (delta: 50.3MB). Free memory was 132.1MB in the beginning and 148.2MB in the end (delta: -16.0MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-11-20 21:13:04,009 INFO L158 Benchmark]: Witness Printer took 74.27ms. Allocated memory is still 232.8MB. Free memory was 148.2MB in the beginning and 144.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 21:13:04,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 130.0MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 618.96ms. Allocated memory is still 182.5MB. Free memory was 148.6MB in the beginning and 123.8MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.70ms. Allocated memory is still 182.5MB. Free memory was 123.8MB in the beginning and 120.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.90ms. Allocated memory is still 182.5MB. Free memory was 120.5MB in the beginning and 118.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1382.46ms. Allocated memory is still 182.5MB. Free memory was 118.4MB in the beginning and 132.1MB in the end (delta: -13.7MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * TraceAbstraction took 20442.26ms. Allocated memory was 182.5MB in the beginning and 232.8MB in the end (delta: 50.3MB). Free memory was 132.1MB in the beginning and 148.2MB in the end (delta: -16.0MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Witness Printer took 74.27ms. Allocated memory is still 232.8MB. Free memory was 148.2MB in the beginning and 144.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.3s, 168 PlacesBefore, 48 PlacesAfterwards, 157 TransitionsBefore, 36 TransitionsAfterwards, 3600 CoEnabledTransitionPairs, 8 FixpointIterations, 64 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 140 TotalNumberOfCompositions, 12048 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5132, independent: 4788, independent conditional: 0, independent unconditional: 4788, dependent: 344, dependent conditional: 0, dependent unconditional: 344, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2519, independent: 2427, independent conditional: 0, independent unconditional: 2427, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2519, independent: 2347, independent conditional: 0, independent unconditional: 2347, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 172, independent: 80, independent conditional: 0, independent unconditional: 80, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1389, independent: 169, independent conditional: 0, independent unconditional: 169, dependent: 1220, dependent conditional: 0, dependent unconditional: 1220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5132, independent: 2361, independent conditional: 0, independent unconditional: 2361, dependent: 252, dependent conditional: 0, dependent unconditional: 252, unknown: 2519, unknown conditional: 0, unknown unconditional: 2519] , Statistics on independence cache: Total cache size (in pairs): 310, Positive cache size: 278, Positive conditional cache size: 0, Positive unconditional cache size: 278, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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, 196 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 20.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 17.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 343 IncrementalHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 24 mSDtfsCounter, 343 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5530occurred in iteration=0, 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: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 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! [2022-11-20 21:13:04,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcdfaa29-205c-48b1-b9e1-faaa5050fa89/bin/utaipan-6cKwYrpEi9/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