./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix044.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix044.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS --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 bb408c890b0d52a937687fd58d564d57121120b7f4647156375768e776a678b4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:05:58,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:05:58,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:05:58,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:05:58,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:05:58,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:05:58,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:05:58,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:05:58,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:05:58,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:05:58,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:05:58,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:05:58,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:05:58,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:05:58,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:05:58,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:05:58,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:05:58,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:05:58,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:05:58,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:05:58,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:05:58,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:05:58,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:05:58,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:05:58,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:05:58,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:05:58,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:05:58,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:05:58,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:05:58,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:05:58,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:05:58,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:05:58,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:05:58,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:05:58,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:05:58,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:05:58,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:05:58,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:05:58,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:05:58,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:05:58,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:05:58,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 08:05:58,660 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:05:58,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:05:58,661 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:05:58,661 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:05:58,662 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:05:58,662 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:05:58,662 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:05:58,662 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:05:58,663 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:05:58,663 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:05:58,664 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:05:58,664 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:05:58,664 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:05:58,665 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:05:58,665 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:05:58,665 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:05:58,665 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:05:58,665 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:05:58,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:05:58,666 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:05:58,666 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:05:58,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:05:58,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:05:58,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:05:58,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:05:58,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:05:58,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:05:58,669 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:05:58,669 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:05:58,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:05:58,670 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:05:58,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:05:58,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:05:58,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:05:58,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:05:58,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:05:58,671 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:05:58,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:05:58,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:05:58,671 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:05:58,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:05:58,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:05:58,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:05:58,672 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_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb408c890b0d52a937687fd58d564d57121120b7f4647156375768e776a678b4 [2022-11-19 08:05:58,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:05:58,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:05:58,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:05:58,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:05:58,984 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:05:58,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/mix044.opt.i [2022-11-19 08:05:59,066 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/data/615283889/edbf12e4cd3c48c984803171e973f1ee/FLAGaeaf431f1 [2022-11-19 08:05:59,657 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:05:59,679 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/sv-benchmarks/c/pthread-wmm/mix044.opt.i [2022-11-19 08:05:59,703 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/data/615283889/edbf12e4cd3c48c984803171e973f1ee/FLAGaeaf431f1 [2022-11-19 08:05:59,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/data/615283889/edbf12e4cd3c48c984803171e973f1ee [2022-11-19 08:05:59,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:05:59,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:05:59,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:05:59,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:05:59,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:05:59,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:59" (1/1) ... [2022-11-19 08:05:59,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@206b11dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:59, skipping insertion in model container [2022-11-19 08:05:59,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:59" (1/1) ... [2022-11-19 08:05:59,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:05:59,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:06:00,208 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/sv-benchmarks/c/pthread-wmm/mix044.opt.i[944,957] [2022-11-19 08:06:00,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:06:00,512 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:06:00,526 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/sv-benchmarks/c/pthread-wmm/mix044.opt.i[944,957] [2022-11-19 08:06:00,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:06:00,662 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:06:00,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00 WrapperNode [2022-11-19 08:06:00,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:06:00,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:06:00,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:06:00,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:06:00,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (1/1) ... [2022-11-19 08:06:00,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (1/1) ... [2022-11-19 08:06:00,754 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 168 [2022-11-19 08:06:00,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:06:00,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:06:00,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:06:00,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:06:00,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (1/1) ... [2022-11-19 08:06:00,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (1/1) ... [2022-11-19 08:06:00,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (1/1) ... [2022-11-19 08:06:00,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (1/1) ... [2022-11-19 08:06:00,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (1/1) ... [2022-11-19 08:06:00,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (1/1) ... [2022-11-19 08:06:00,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (1/1) ... [2022-11-19 08:06:00,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (1/1) ... [2022-11-19 08:06:00,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:06:00,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:06:00,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:06:00,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:06:00,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (1/1) ... [2022-11-19 08:06:00,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:06:00,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:06:00,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:06:00,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:06:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:06:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:06:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:06:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:06:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:06:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 08:06:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 08:06:00,895 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 08:06:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 08:06:00,896 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-19 08:06:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-19 08:06:00,896 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-19 08:06:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-19 08:06:00,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:06:00,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:06:00,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:06:00,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:06:00,899 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:06:01,059 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:06:01,061 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:06:01,522 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:06:01,710 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:06:01,711 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:06:01,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:01 BoogieIcfgContainer [2022-11-19 08:06:01,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:06:01,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:06:01,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:06:01,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:06:01,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:59" (1/3) ... [2022-11-19 08:06:01,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caa1875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:01, skipping insertion in model container [2022-11-19 08:06:01,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:00" (2/3) ... [2022-11-19 08:06:01,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caa1875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:01, skipping insertion in model container [2022-11-19 08:06:01,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:01" (3/3) ... [2022-11-19 08:06:01,725 INFO L112 eAbstractionObserver]: Analyzing ICFG mix044.opt.i [2022-11-19 08:06:01,734 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 08:06:01,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:06:01,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-19 08:06:01,746 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:06:01,849 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:06:01,884 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:06:01,898 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 143 transitions, 306 flow [2022-11-19 08:06:01,901 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 143 transitions, 306 flow [2022-11-19 08:06:01,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 143 transitions, 306 flow [2022-11-19 08:06:01,990 INFO L130 PetriNetUnfolder]: 2/139 cut-off events. [2022-11-19 08:06:01,990 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:06:01,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 2/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-11-19 08:06:01,999 INFO L119 LiptonReduction]: Number of co-enabled transitions 4100 [2022-11-19 08:06:09,526 INFO L134 LiptonReduction]: Checked pairs total: 13332 [2022-11-19 08:06:09,527 INFO L136 LiptonReduction]: Total number of compositions: 121 [2022-11-19 08:06:09,536 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 38 transitions, 96 flow [2022-11-19 08:06:09,950 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7642 states, 7562 states have (on average 4.348585030415234) internal successors, (32884), 7641 states have internal predecessors, (32884), 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) [2022-11-19 08:06:09,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:06:09,982 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;@d9d1ed1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:06:09,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-19 08:06:10,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 7642 states, 7562 states have (on average 4.348585030415234) internal successors, (32884), 7641 states have internal predecessors, (32884), 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) [2022-11-19 08:06:10,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:06:10,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:06:10,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:06:10,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 08:06:10,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:06:10,017 INFO L85 PathProgramCache]: Analyzing trace with hash 18351757, now seen corresponding path program 1 times [2022-11-19 08:06:10,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:06:10,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106951436] [2022-11-19 08:06:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:06:10,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:06:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:06:10,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:06:10,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:06:10,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106951436] [2022-11-19 08:06:10,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106951436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:06:10,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:06:10,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:06:10,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094449648] [2022-11-19 08:06:10,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:06:10,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:06:10,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:06:10,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:06:10,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:06:10,352 INFO L87 Difference]: Start difference. First operand has 7642 states, 7562 states have (on average 4.348585030415234) internal successors, (32884), 7641 states have internal predecessors, (32884), 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) [2022-11-19 08:06:10,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:06:10,590 INFO L93 Difference]: Finished difference Result 4354 states and 15741 transitions. [2022-11-19 08:06:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:06:10,592 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 [2022-11-19 08:06:10,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:06:10,657 INFO L225 Difference]: With dead ends: 4354 [2022-11-19 08:06:10,658 INFO L226 Difference]: Without dead ends: 4354 [2022-11-19 08:06:10,659 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 [2022-11-19 08:06:10,662 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:06:10,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 10 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:06:10,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2022-11-19 08:06:10,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 4354. [2022-11-19 08:06:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4354 states, 4290 states have (on average 3.669230769230769) internal successors, (15741), 4353 states have internal predecessors, (15741), 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) [2022-11-19 08:06:11,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4354 states to 4354 states and 15741 transitions. [2022-11-19 08:06:11,027 INFO L78 Accepts]: Start accepts. Automaton has 4354 states and 15741 transitions. Word has length 4 [2022-11-19 08:06:11,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:06:11,028 INFO L495 AbstractCegarLoop]: Abstraction has 4354 states and 15741 transitions. [2022-11-19 08:06:11,029 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) [2022-11-19 08:06:11,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4354 states and 15741 transitions. [2022-11-19 08:06:11,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:06:11,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:06:11,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:06:11,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:06:11,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 08:06:11,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:06:11,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2143866898, now seen corresponding path program 1 times [2022-11-19 08:06:11,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:06:11,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554196771] [2022-11-19 08:06:11,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:06:11,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:06:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:06:11,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:06:11,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:06:11,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554196771] [2022-11-19 08:06:11,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554196771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:06:11,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:06:11,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:06:11,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801866569] [2022-11-19 08:06:11,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:06:11,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:06:11,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:06:11,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:06:11,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:06:11,189 INFO L87 Difference]: Start difference. First operand 4354 states and 15741 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) [2022-11-19 08:06:11,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:06:11,454 INFO L93 Difference]: Finished difference Result 2830 states and 10359 transitions. [2022-11-19 08:06:11,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:06:11,455 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 [2022-11-19 08:06:11,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:06:11,477 INFO L225 Difference]: With dead ends: 2830 [2022-11-19 08:06:11,477 INFO L226 Difference]: Without dead ends: 2830 [2022-11-19 08:06:11,479 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 [2022-11-19 08:06:11,481 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 37 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:06:11,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 12 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:06:11,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2022-11-19 08:06:11,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2830. [2022-11-19 08:06:11,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2830 states, 2816 states have (on average 3.678622159090909) internal successors, (10359), 2829 states have internal predecessors, (10359), 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) [2022-11-19 08:06:11,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2830 states to 2830 states and 10359 transitions. [2022-11-19 08:06:11,607 INFO L78 Accepts]: Start accepts. Automaton has 2830 states and 10359 transitions. Word has length 9 [2022-11-19 08:06:11,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:06:11,608 INFO L495 AbstractCegarLoop]: Abstraction has 2830 states and 10359 transitions. [2022-11-19 08:06:11,608 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) [2022-11-19 08:06:11,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2830 states and 10359 transitions. [2022-11-19 08:06:11,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:06:11,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:06:11,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:06:11,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:06:11,659 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 08:06:11,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:06:11,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2035362366, now seen corresponding path program 1 times [2022-11-19 08:06:11,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:06:11,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380494617] [2022-11-19 08:06:11,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:06:11,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:06:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:06:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:06:11,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:06:11,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380494617] [2022-11-19 08:06:11,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380494617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:06:11,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:06:11,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:06:11,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121015065] [2022-11-19 08:06:11,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:06:11,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:06:11,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:06:11,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:06:11,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:06:11,803 INFO L87 Difference]: Start difference. First operand 2830 states and 10359 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-19 08:06:11,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:06:11,980 INFO L93 Difference]: Finished difference Result 2012 states and 7333 transitions. [2022-11-19 08:06:11,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:06:11,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-19 08:06:11,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:06:11,998 INFO L225 Difference]: With dead ends: 2012 [2022-11-19 08:06:11,998 INFO L226 Difference]: Without dead ends: 2012 [2022-11-19 08:06:11,998 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 [2022-11-19 08:06:12,000 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:06:12,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 13 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:06:12,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2022-11-19 08:06:12,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 2012. [2022-11-19 08:06:12,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 2002 states have (on average 3.662837162837163) internal successors, (7333), 2011 states have internal predecessors, (7333), 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) [2022-11-19 08:06:12,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 7333 transitions. [2022-11-19 08:06:12,099 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 7333 transitions. Word has length 10 [2022-11-19 08:06:12,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:06:12,099 INFO L495 AbstractCegarLoop]: Abstraction has 2012 states and 7333 transitions. [2022-11-19 08:06:12,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-19 08:06:12,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 7333 transitions. [2022-11-19 08:06:12,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 08:06:12,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:06:12,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:06:12,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:06:12,111 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 08:06:12,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:06:12,111 INFO L85 PathProgramCache]: Analyzing trace with hash -211220479, now seen corresponding path program 1 times [2022-11-19 08:06:12,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:06:12,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725360447] [2022-11-19 08:06:12,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:06:12,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:06:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:06:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:06:12,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:06:12,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725360447] [2022-11-19 08:06:12,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725360447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:06:12,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:06:12,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:06:12,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254844279] [2022-11-19 08:06:12,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:06:12,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:06:12,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:06:12,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:06:12,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:06:12,294 INFO L87 Difference]: Start difference. First operand 2012 states and 7333 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-19 08:06:12,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:06:12,497 INFO L93 Difference]: Finished difference Result 1814 states and 6793 transitions. [2022-11-19 08:06:12,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:06:12,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-11-19 08:06:12,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:06:12,510 INFO L225 Difference]: With dead ends: 1814 [2022-11-19 08:06:12,510 INFO L226 Difference]: Without dead ends: 1814 [2022-11-19 08:06:12,510 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 [2022-11-19 08:06:12,511 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 51 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:06:12,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 16 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:06:12,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2022-11-19 08:06:12,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1814. [2022-11-19 08:06:12,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1810 states have (on average 3.7530386740331494) internal successors, (6793), 1813 states have internal predecessors, (6793), 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) [2022-11-19 08:06:12,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 6793 transitions. [2022-11-19 08:06:12,572 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 6793 transitions. Word has length 16 [2022-11-19 08:06:12,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:06:12,572 INFO L495 AbstractCegarLoop]: Abstraction has 1814 states and 6793 transitions. [2022-11-19 08:06:12,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-19 08:06:12,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 6793 transitions. [2022-11-19 08:06:12,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:06:12,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:06:12,578 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] [2022-11-19 08:06:12,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:06:12,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 08:06:12,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:06:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash 626859969, now seen corresponding path program 1 times [2022-11-19 08:06:12,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:06:12,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059136582] [2022-11-19 08:06:12,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:06:12,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:06:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:06:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:06:12,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:06:12,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059136582] [2022-11-19 08:06:12,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059136582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:06:12,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:06:12,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:06:12,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436112603] [2022-11-19 08:06:12,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:06:12,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:06:12,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:06:12,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:06:12,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:06:12,792 INFO L87 Difference]: Start difference. First operand 1814 states and 6793 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-11-19 08:06:13,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:06:13,001 INFO L93 Difference]: Finished difference Result 1798 states and 6765 transitions. [2022-11-19 08:06:13,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:06:13,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2022-11-19 08:06:13,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:06:13,002 INFO L225 Difference]: With dead ends: 1798 [2022-11-19 08:06:13,002 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:06:13,003 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 [2022-11-19 08:06:13,004 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 76 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:06:13,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 12 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:06:13,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:06:13,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:06:13,005 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) [2022-11-19 08:06:13,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:06:13,005 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-19 08:06:13,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:06:13,006 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:06:13,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-11-19 08:06:13,006 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:06:13,006 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:06:13,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-19 08:06:13,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-19 08:06:13,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-19 08:06:13,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-19 08:06:13,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-19 08:06:13,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-19 08:06:13,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-19 08:06:13,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-19 08:06:13,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-19 08:06:13,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-19 08:06:13,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-19 08:06:13,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-19 08:06:13,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-19 08:06:13,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-19 08:06:13,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-19 08:06:13,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-19 08:06:13,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-19 08:06:13,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-19 08:06:13,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-19 08:06:13,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-19 08:06:13,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:06:13,016 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-19 08:06:13,021 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:06:13,021 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:06:13,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:06:13 BasicIcfg [2022-11-19 08:06:13,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:06:13,025 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:06:13,025 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:06:13,025 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:06:13,025 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:01" (3/4) ... [2022-11-19 08:06:13,028 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:06:13,033 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-19 08:06:13,033 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-19 08:06:13,034 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-19 08:06:13,034 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-19 08:06:13,039 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-11-19 08:06:13,039 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-19 08:06:13,039 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 08:06:13,040 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:06:13,076 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:06:13,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:06:13,077 INFO L158 Benchmark]: Toolchain (without parser) took 13149.73ms. Allocated memory was 130.0MB in the beginning and 230.7MB in the end (delta: 100.7MB). Free memory was 94.8MB in the beginning and 135.0MB in the end (delta: -40.2MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2022-11-19 08:06:13,077 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 43.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:06:13,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 732.84ms. Allocated memory is still 130.0MB. Free memory was 94.6MB in the beginning and 93.6MB in the end (delta: 972.3kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:06:13,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.49ms. Allocated memory is still 130.0MB. Free memory was 93.6MB in the beginning and 90.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:06:13,078 INFO L158 Benchmark]: Boogie Preprocessor took 54.61ms. Allocated memory is still 130.0MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:06:13,079 INFO L158 Benchmark]: RCFGBuilder took 902.93ms. Allocated memory is still 130.0MB. Free memory was 88.8MB in the beginning and 53.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-19 08:06:13,079 INFO L158 Benchmark]: TraceAbstraction took 11308.87ms. Allocated memory was 130.0MB in the beginning and 230.7MB in the end (delta: 100.7MB). Free memory was 52.4MB in the beginning and 138.1MB in the end (delta: -85.7MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-11-19 08:06:13,079 INFO L158 Benchmark]: Witness Printer took 51.86ms. Allocated memory is still 230.7MB. Free memory was 138.1MB in the beginning and 135.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:06:13,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 43.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 732.84ms. Allocated memory is still 130.0MB. Free memory was 94.6MB in the beginning and 93.6MB in the end (delta: 972.3kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.49ms. Allocated memory is still 130.0MB. Free memory was 93.6MB in the beginning and 90.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.61ms. Allocated memory is still 130.0MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 902.93ms. Allocated memory is still 130.0MB. Free memory was 88.8MB in the beginning and 53.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11308.87ms. Allocated memory was 130.0MB in the beginning and 230.7MB in the end (delta: 100.7MB). Free memory was 52.4MB in the beginning and 138.1MB in the end (delta: -85.7MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Witness Printer took 51.86ms. Allocated memory is still 230.7MB. Free memory was 138.1MB in the beginning and 135.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6s, 154 PlacesBefore, 50 PlacesAfterwards, 143 TransitionsBefore, 38 TransitionsAfterwards, 4100 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 121 TotalNumberOfCompositions, 13332 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6090, independent: 5779, independent conditional: 0, independent unconditional: 5779, dependent: 311, dependent conditional: 0, dependent unconditional: 311, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3012, independent: 2913, independent conditional: 0, independent unconditional: 2913, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3012, independent: 2832, independent conditional: 0, independent unconditional: 2832, dependent: 180, dependent conditional: 0, dependent unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 180, independent: 81, independent conditional: 0, independent unconditional: 81, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 901, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 718, dependent conditional: 0, dependent unconditional: 718, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6090, independent: 2866, independent conditional: 0, independent unconditional: 2866, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 3012, unknown conditional: 0, unknown unconditional: 3012] , Statistics on independence cache: Total cache size (in pairs): 361, Positive cache size: 328, Positive conditional cache size: 0, Positive unconditional cache size: 328, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, 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: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: 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, 186 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 218 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 218 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 378 IncrementalHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 30 mSDtfsCounter, 378 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=7642occurred 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: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 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! [2022-11-19 08:06:13,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d275462-fe46-4c95-8771-d0bb35d41a08/bin/utaipan-I9t0OCRTmS/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