./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW --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 dcc3fad0768415d67ba0b5226238487b935d262c55e83ab1790d239680fbb73d --- 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-4e7fbc6 [2022-11-23 15:11:56,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:11:56,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:11:56,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:11:56,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:11:56,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:11:56,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:11:56,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:11:56,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:11:56,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:11:56,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:11:56,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:11:56,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:11:56,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:11:56,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:11:56,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:11:56,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:11:56,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:11:56,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:11:56,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:11:56,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:11:56,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:11:56,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:11:56,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:11:56,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:11:56,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:11:56,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:11:56,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:11:56,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:11:56,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:11:56,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:11:56,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:11:56,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:11:56,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:11:56,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:11:56,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:11:56,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:11:56,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:11:56,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:11:56,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:11:56,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:11:56,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 15:11:56,759 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:11:56,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:11:56,760 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:11:56,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:11:56,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:11:56,761 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:11:56,761 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:11:56,761 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:11:56,761 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:11:56,762 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:11:56,762 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:11:56,762 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:11:56,762 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:11:56,762 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:11:56,762 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:11:56,769 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:11:56,769 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:11:56,769 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:11:56,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:11:56,770 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:11:56,770 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:11:56,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:11:56,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:11:56,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:11:56,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:11:56,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:11:56,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:11:56,772 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:11:56,773 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:11:56,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:11:56,774 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:11:56,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:11:56,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:11:56,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:11:56,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:11:56,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:11:56,777 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:11:56,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:11:56,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:11:56,778 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:11:56,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:11:56,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:11:56,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:11:56,779 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_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcc3fad0768415d67ba0b5226238487b935d262c55e83ab1790d239680fbb73d [2022-11-23 15:11:57,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:11:57,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:11:57,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:11:57,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:11:57,159 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:11:57,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2022-11-23 15:12:00,125 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:12:00,420 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:12:00,421 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2022-11-23 15:12:00,435 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/data/ca284f5c4/fe3ac9ba61664ae1a027215345af80b8/FLAG5a4edb20d [2022-11-23 15:12:00,450 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/data/ca284f5c4/fe3ac9ba61664ae1a027215345af80b8 [2022-11-23 15:12:00,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:12:00,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:12:00,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:12:00,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:12:00,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:12:00,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:00" (1/1) ... [2022-11-23 15:12:00,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45c88af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:00, skipping insertion in model container [2022-11-23 15:12:00,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:00" (1/1) ... [2022-11-23 15:12:00,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:12:00,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:12:00,802 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_75c5a6e7-00a4-4675-95b9-919f4e864769/sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-23 15:12:01,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:12:01,140 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:12:01,154 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_75c5a6e7-00a4-4675-95b9-919f4e864769/sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-23 15:12:01,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:12:01,245 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:12:01,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01 WrapperNode [2022-11-23 15:12:01,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:12:01,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:12:01,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:12:01,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:12:01,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (1/1) ... [2022-11-23 15:12:01,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (1/1) ... [2022-11-23 15:12:01,297 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-11-23 15:12:01,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:12:01,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:12:01,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:12:01,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:12:01,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (1/1) ... [2022-11-23 15:12:01,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (1/1) ... [2022-11-23 15:12:01,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (1/1) ... [2022-11-23 15:12:01,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (1/1) ... [2022-11-23 15:12:01,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (1/1) ... [2022-11-23 15:12:01,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (1/1) ... [2022-11-23 15:12:01,326 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (1/1) ... [2022-11-23 15:12:01,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (1/1) ... [2022-11-23 15:12:01,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:12:01,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:12:01,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:12:01,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:12:01,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (1/1) ... [2022-11-23 15:12:01,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:12:01,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:12:01,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:12:01,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:12:01,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:12:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 15:12:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:12:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:12:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:12:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 15:12:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 15:12:01,426 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 15:12:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 15:12:01,426 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 15:12:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 15:12:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-23 15:12:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-23 15:12:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:12:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 15:12:01,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:12:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:12:01,429 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 15:12:01,679 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:12:01,682 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:12:02,073 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:12:02,313 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:12:02,313 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:12:02,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:02 BoogieIcfgContainer [2022-11-23 15:12:02,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:12:02,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:12:02,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:12:02,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:12:02,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:12:00" (1/3) ... [2022-11-23 15:12:02,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a4492d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:12:02, skipping insertion in model container [2022-11-23 15:12:02,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:01" (2/3) ... [2022-11-23 15:12:02,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a4492d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:12:02, skipping insertion in model container [2022-11-23 15:12:02,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:02" (3/3) ... [2022-11-23 15:12:02,326 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.oepc_pso.oepc_rmo.oepc.i [2022-11-23 15:12:02,339 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:12:02,347 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:12:02,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 15:12:02,348 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:12:02,437 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 15:12:02,485 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:12:02,505 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 144 transitions, 308 flow [2022-11-23 15:12:02,510 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 144 transitions, 308 flow [2022-11-23 15:12:02,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 144 transitions, 308 flow [2022-11-23 15:12:02,629 INFO L130 PetriNetUnfolder]: 2/140 cut-off events. [2022-11-23 15:12:02,630 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 15:12:02,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 2/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-11-23 15:12:02,640 INFO L119 LiptonReduction]: Number of co-enabled transitions 4420 [2022-11-23 15:12:08,798 INFO L134 LiptonReduction]: Checked pairs total: 15846 [2022-11-23 15:12:08,798 INFO L136 LiptonReduction]: Total number of compositions: 119 [2022-11-23 15:12:08,807 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 41 transitions, 102 flow [2022-11-23 15:12:09,345 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11772 states, 11692 states have (on average 4.40711597673623) internal successors, (51528), 11771 states have internal predecessors, (51528), 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) [2022-11-23 15:12:09,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:12:09,385 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;@34bd2498, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:12:09,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-23 15:12:09,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 11772 states, 11692 states have (on average 4.40711597673623) internal successors, (51528), 11771 states have internal predecessors, (51528), 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) [2022-11-23 15:12:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:12:09,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:09,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:12:09,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-23 15:12:09,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:09,450 INFO L85 PathProgramCache]: Analyzing trace with hash 586021916, now seen corresponding path program 1 times [2022-11-23 15:12:09,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:09,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495863398] [2022-11-23 15:12:09,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:09,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:12:10,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:10,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495863398] [2022-11-23 15:12:10,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495863398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:10,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:10,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:12:10,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356401826] [2022-11-23 15:12:10,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:10,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:12:10,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:10,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:12:10,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:12:10,069 INFO L87 Difference]: Start difference. First operand has 11772 states, 11692 states have (on average 4.40711597673623) internal successors, (51528), 11771 states have internal predecessors, (51528), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-23 15:12:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:10,365 INFO L93 Difference]: Finished difference Result 6562 states and 26549 transitions. [2022-11-23 15:12:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:12:10,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-23 15:12:10,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:10,448 INFO L225 Difference]: With dead ends: 6562 [2022-11-23 15:12:10,449 INFO L226 Difference]: Without dead ends: 6562 [2022-11-23 15:12:10,449 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 [2022-11-23 15:12:10,453 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:10,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:12:10,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2022-11-23 15:12:10,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 6562. [2022-11-23 15:12:10,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6562 states, 6547 states have (on average 4.055139758668092) internal successors, (26549), 6561 states have internal predecessors, (26549), 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) [2022-11-23 15:12:10,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6562 states to 6562 states and 26549 transitions. [2022-11-23 15:12:10,907 INFO L78 Accepts]: Start accepts. Automaton has 6562 states and 26549 transitions. Word has length 5 [2022-11-23 15:12:10,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:10,908 INFO L495 AbstractCegarLoop]: Abstraction has 6562 states and 26549 transitions. [2022-11-23 15:12:10,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-23 15:12:10,908 INFO L276 IsEmpty]: Start isEmpty. Operand 6562 states and 26549 transitions. [2022-11-23 15:12:10,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:12:10,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:10,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 15:12:10,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:12:10,910 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-23 15:12:10,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:10,911 INFO L85 PathProgramCache]: Analyzing trace with hash 986807758, now seen corresponding path program 1 times [2022-11-23 15:12:10,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:10,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070931831] [2022-11-23 15:12:10,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:10,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:11,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:12:11,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:11,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070931831] [2022-11-23 15:12:11,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070931831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:11,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:11,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 15:12:11,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917475938] [2022-11-23 15:12:11,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:11,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:12:11,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:11,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:12:11,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:12:11,082 INFO L87 Difference]: Start difference. First operand 6562 states and 26549 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-23 15:12:11,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:11,338 INFO L93 Difference]: Finished difference Result 3740 states and 13033 transitions. [2022-11-23 15:12:11,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:12:11,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-23 15:12:11,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:11,363 INFO L225 Difference]: With dead ends: 3740 [2022-11-23 15:12:11,363 INFO L226 Difference]: Without dead ends: 3740 [2022-11-23 15:12:11,364 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 [2022-11-23 15:12:11,365 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:11,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 8 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:12:11,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2022-11-23 15:12:11,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3740. [2022-11-23 15:12:11,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3740 states, 3726 states have (on average 3.4978529253891573) internal successors, (13033), 3739 states have internal predecessors, (13033), 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) [2022-11-23 15:12:11,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 13033 transitions. [2022-11-23 15:12:11,549 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 13033 transitions. Word has length 6 [2022-11-23 15:12:11,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:11,549 INFO L495 AbstractCegarLoop]: Abstraction has 3740 states and 13033 transitions. [2022-11-23 15:12:11,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-23 15:12:11,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 13033 transitions. [2022-11-23 15:12:11,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:12:11,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:11,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:12:11,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:12:11,560 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-23 15:12:11,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:11,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1099218747, now seen corresponding path program 1 times [2022-11-23 15:12:11,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:11,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737081513] [2022-11-23 15:12:11,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:11,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:11,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:12:11,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:11,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737081513] [2022-11-23 15:12:11,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737081513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:11,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:11,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:12:11,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504961627] [2022-11-23 15:12:11,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:11,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:12:11,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:11,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:12:11,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:12:11,718 INFO L87 Difference]: Start difference. First operand 3740 states and 13033 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-23 15:12:11,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:11,885 INFO L93 Difference]: Finished difference Result 1686 states and 5150 transitions. [2022-11-23 15:12:11,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:12:11,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-23 15:12:11,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:11,896 INFO L225 Difference]: With dead ends: 1686 [2022-11-23 15:12:11,896 INFO L226 Difference]: Without dead ends: 1686 [2022-11-23 15:12:11,897 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 [2022-11-23 15:12:11,898 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 39 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:11,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 12 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:12:11,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-11-23 15:12:11,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1686. [2022-11-23 15:12:11,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1676 states have (on average 3.0727923627684963) internal successors, (5150), 1685 states have internal predecessors, (5150), 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) [2022-11-23 15:12:11,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 5150 transitions. [2022-11-23 15:12:11,954 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 5150 transitions. Word has length 12 [2022-11-23 15:12:11,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:11,954 INFO L495 AbstractCegarLoop]: Abstraction has 1686 states and 5150 transitions. [2022-11-23 15:12:11,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-23 15:12:11,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 5150 transitions. [2022-11-23 15:12:11,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 15:12:11,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:11,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:12:11,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:12:11,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-23 15:12:11,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:11,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1615030531, now seen corresponding path program 1 times [2022-11-23 15:12:11,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:11,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209550643] [2022-11-23 15:12:11,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:11,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:12,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:12:12,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:12,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209550643] [2022-11-23 15:12:12,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209550643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:12,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:12,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:12:12,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404051650] [2022-11-23 15:12:12,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:12,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:12:12,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:12,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:12:12,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:12:12,119 INFO L87 Difference]: Start difference. First operand 1686 states and 5150 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-23 15:12:12,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:12,316 INFO L93 Difference]: Finished difference Result 1128 states and 3539 transitions. [2022-11-23 15:12:12,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:12:12,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2022-11-23 15:12:12,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:12,322 INFO L225 Difference]: With dead ends: 1128 [2022-11-23 15:12:12,323 INFO L226 Difference]: Without dead ends: 1128 [2022-11-23 15:12:12,323 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 [2022-11-23 15:12:12,324 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 83 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:12,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 16 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:12:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-11-23 15:12:12,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2022-11-23 15:12:12,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1124 states have (on average 3.148576512455516) internal successors, (3539), 1127 states have internal predecessors, (3539), 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) [2022-11-23 15:12:12,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3539 transitions. [2022-11-23 15:12:12,427 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3539 transitions. Word has length 18 [2022-11-23 15:12:12,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:12,428 INFO L495 AbstractCegarLoop]: Abstraction has 1128 states and 3539 transitions. [2022-11-23 15:12:12,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-11-23 15:12:12,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3539 transitions. [2022-11-23 15:12:12,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 15:12:12,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:12,432 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, 1, 1, 1, 1, 1] [2022-11-23 15:12:12,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:12:12,432 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-23 15:12:12,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:12,433 INFO L85 PathProgramCache]: Analyzing trace with hash 811008853, now seen corresponding path program 1 times [2022-11-23 15:12:12,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:12,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509162242] [2022-11-23 15:12:12,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:12,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:12:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:12:12,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:12:12,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509162242] [2022-11-23 15:12:12,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509162242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:12:12,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:12:12,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:12:12,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486259827] [2022-11-23 15:12:12,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:12:12,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:12:12,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:12:12,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:12:12,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:12:12,604 INFO L87 Difference]: Start difference. First operand 1128 states and 3539 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-11-23 15:12:12,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:12:12,774 INFO L93 Difference]: Finished difference Result 1061 states and 3421 transitions. [2022-11-23 15:12:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:12:12,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2022-11-23 15:12:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:12:12,775 INFO L225 Difference]: With dead ends: 1061 [2022-11-23 15:12:12,775 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:12:12,775 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 [2022-11-23 15:12:12,776 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 82 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:12:12,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 16 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:12:12,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:12:12,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:12:12,777 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) [2022-11-23 15:12:12,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:12:12,777 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-11-23 15:12:12,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:12:12,778 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:12:12,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2022-11-23 15:12:12,778 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:12:12,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:12:12,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-23 15:12:12,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-23 15:12:12,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-23 15:12:12,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-23 15:12:12,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-23 15:12:12,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-23 15:12:12,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-23 15:12:12,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-23 15:12:12,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-23 15:12:12,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-23 15:12:12,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-23 15:12:12,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-23 15:12:12,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-23 15:12:12,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-23 15:12:12,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-23 15:12:12,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-23 15:12:12,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-23 15:12:12,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-23 15:12:12,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-23 15:12:12,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-23 15:12:12,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:12:12,787 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-23 15:12:12,792 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 15:12:12,792 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:12:12,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:12:12 BasicIcfg [2022-11-23 15:12:12,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:12:12,796 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:12:12,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:12:12,796 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:12:12,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:02" (3/4) ... [2022-11-23 15:12:12,799 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:12:12,805 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-23 15:12:12,805 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-23 15:12:12,805 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-23 15:12:12,805 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-23 15:12:12,810 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-23 15:12:12,810 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 15:12:12,811 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 15:12:12,811 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:12:12,846 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:12:12,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:12:12,847 INFO L158 Benchmark]: Toolchain (without parser) took 12393.01ms. Allocated memory was 169.9MB in the beginning and 354.4MB in the end (delta: 184.5MB). Free memory was 133.2MB in the beginning and 145.2MB in the end (delta: -11.9MB). Peak memory consumption was 171.6MB. Max. memory is 16.1GB. [2022-11-23 15:12:12,848 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 130.0MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:12:12,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.20ms. Allocated memory is still 169.9MB. Free memory was 133.2MB in the beginning and 122.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 15:12:12,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.06ms. Allocated memory is still 169.9MB. Free memory was 122.4MB in the beginning and 119.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:12:12,849 INFO L158 Benchmark]: Boogie Preprocessor took 33.21ms. Allocated memory is still 169.9MB. Free memory was 119.2MB in the beginning and 118.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:12:12,849 INFO L158 Benchmark]: RCFGBuilder took 983.51ms. Allocated memory is still 169.9MB. Free memory was 117.1MB in the beginning and 77.3MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-23 15:12:12,849 INFO L158 Benchmark]: TraceAbstraction took 10476.87ms. Allocated memory was 169.9MB in the beginning and 354.4MB in the end (delta: 184.5MB). Free memory was 77.3MB in the beginning and 148.3MB in the end (delta: -71.0MB). Peak memory consumption was 116.7MB. Max. memory is 16.1GB. [2022-11-23 15:12:12,850 INFO L158 Benchmark]: Witness Printer took 50.95ms. Allocated memory is still 354.4MB. Free memory was 148.3MB in the beginning and 145.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:12:12,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 130.0MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 790.20ms. Allocated memory is still 169.9MB. Free memory was 133.2MB in the beginning and 122.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.06ms. Allocated memory is still 169.9MB. Free memory was 122.4MB in the beginning and 119.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.21ms. Allocated memory is still 169.9MB. Free memory was 119.2MB in the beginning and 118.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 983.51ms. Allocated memory is still 169.9MB. Free memory was 117.1MB in the beginning and 77.3MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10476.87ms. Allocated memory was 169.9MB in the beginning and 354.4MB in the end (delta: 184.5MB). Free memory was 77.3MB in the beginning and 148.3MB in the end (delta: -71.0MB). Peak memory consumption was 116.7MB. Max. memory is 16.1GB. * Witness Printer took 50.95ms. Allocated memory is still 354.4MB. Free memory was 148.3MB in the beginning and 145.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 155 PlacesBefore, 53 PlacesAfterwards, 144 TransitionsBefore, 41 TransitionsAfterwards, 4420 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 119 TotalNumberOfCompositions, 15846 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5614, independent: 5259, independent conditional: 0, independent unconditional: 5259, dependent: 355, dependent conditional: 0, dependent unconditional: 355, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3027, independent: 2948, independent conditional: 0, independent unconditional: 2948, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3027, independent: 2863, independent conditional: 0, independent unconditional: 2863, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 164, independent: 85, independent conditional: 0, independent unconditional: 85, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 581, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 419, dependent conditional: 0, dependent unconditional: 419, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5614, independent: 2311, independent conditional: 0, independent unconditional: 2311, dependent: 276, dependent conditional: 0, dependent unconditional: 276, unknown: 3027, unknown conditional: 0, unknown unconditional: 3027] , Statistics on independence cache: Total cache size (in pairs): 334, Positive cache size: 300, Positive conditional cache size: 0, Positive unconditional cache size: 300, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, 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: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 813]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 813]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: 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, 189 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 244 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 244 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 318 IncrementalHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 20 mSDtfsCounter, 318 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11772occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 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! [2022-11-23 15:12:12,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c5a6e7-00a4-4675-95b9-919f4e864769/bin/utaipan-Q6hlc19bkW/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