./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix011.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix011.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba --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 bf5c730233935847a217c1b7e035f48702f966e69335bdca03afb3b42404d05c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:28:57,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:28:57,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:28:57,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:28:57,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:28:57,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:28:57,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:28:57,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:28:57,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:28:57,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:28:57,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:28:57,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:28:57,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:28:57,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:28:57,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:28:57,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:28:57,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:28:57,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:28:57,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:28:57,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:28:57,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:28:57,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:28:57,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:28:57,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:28:57,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:28:57,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:28:57,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:28:57,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:28:57,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:28:57,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:28:57,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:28:57,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:28:57,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:28:57,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:28:57,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:28:57,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:28:57,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:28:57,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:28:57,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:28:57,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:28:57,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:28:57,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 00:28:57,704 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:28:57,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:28:57,704 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:28:57,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:28:57,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:28:57,706 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:28:57,706 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:28:57,706 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:28:57,707 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:28:57,707 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:28:57,707 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:28:57,707 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:28:57,708 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:28:57,708 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:28:57,708 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:28:57,708 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:28:57,708 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:28:57,709 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:28:57,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:28:57,710 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:28:57,710 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:28:57,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:28:57,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:28:57,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:28:57,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:28:57,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:28:57,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:28:57,711 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:28:57,712 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:28:57,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:28:57,712 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:28:57,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:28:57,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:28:57,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:28:57,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:28:57,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:28:57,714 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:28:57,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:28:57,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:28:57,714 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:28:57,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:28:57,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:28:57,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:28:57,715 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_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf5c730233935847a217c1b7e035f48702f966e69335bdca03afb3b42404d05c [2022-11-22 00:28:58,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:28:58,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:28:58,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:28:58,031 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:28:58,032 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:28:58,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-wmm/mix011.opt.i [2022-11-22 00:29:01,054 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:29:01,363 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:29:01,370 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/sv-benchmarks/c/pthread-wmm/mix011.opt.i [2022-11-22 00:29:01,397 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/data/f5bfe5fe6/ac389fb6719146d79b83dc68cd5cdf13/FLAG6f58b19dc [2022-11-22 00:29:01,443 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/data/f5bfe5fe6/ac389fb6719146d79b83dc68cd5cdf13 [2022-11-22 00:29:01,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:29:01,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:29:01,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:29:01,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:29:01,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:29:01,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:29:01" (1/1) ... [2022-11-22 00:29:01,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a93af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:01, skipping insertion in model container [2022-11-22 00:29:01,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:29:01" (1/1) ... [2022-11-22 00:29:01,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:29:01,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:29:01,684 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_1c373351-9a2c-42b3-bb70-d7bce9a0580b/sv-benchmarks/c/pthread-wmm/mix011.opt.i[944,957] [2022-11-22 00:29:01,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:29:01,966 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:29:01,975 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_1c373351-9a2c-42b3-bb70-d7bce9a0580b/sv-benchmarks/c/pthread-wmm/mix011.opt.i[944,957] [2022-11-22 00:29:02,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:29:02,067 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:29:02,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02 WrapperNode [2022-11-22 00:29:02,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:29:02,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:29:02,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:29:02,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:29:02,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (1/1) ... [2022-11-22 00:29:02,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (1/1) ... [2022-11-22 00:29:02,134 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 151 [2022-11-22 00:29:02,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:29:02,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:29:02,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:29:02,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:29:02,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (1/1) ... [2022-11-22 00:29:02,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (1/1) ... [2022-11-22 00:29:02,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (1/1) ... [2022-11-22 00:29:02,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (1/1) ... [2022-11-22 00:29:02,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (1/1) ... [2022-11-22 00:29:02,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (1/1) ... [2022-11-22 00:29:02,161 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (1/1) ... [2022-11-22 00:29:02,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (1/1) ... [2022-11-22 00:29:02,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:29:02,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:29:02,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:29:02,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:29:02,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (1/1) ... [2022-11-22 00:29:02,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:29:02,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:29:02,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:29:02,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:29:02,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:29:02,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 00:29:02,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:29:02,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:29:02,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:29:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-22 00:29:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-22 00:29:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-22 00:29:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-22 00:29:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-22 00:29:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-22 00:29:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:29:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 00:29:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:29:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:29:02,279 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 00:29:02,460 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:29:02,462 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:29:02,860 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:29:03,146 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:29:03,146 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 00:29:03,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:29:03 BoogieIcfgContainer [2022-11-22 00:29:03,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:29:03,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:29:03,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:29:03,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:29:03,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:29:01" (1/3) ... [2022-11-22 00:29:03,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc38ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:29:03, skipping insertion in model container [2022-11-22 00:29:03,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:29:02" (2/3) ... [2022-11-22 00:29:03,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc38ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:29:03, skipping insertion in model container [2022-11-22 00:29:03,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:29:03" (3/3) ... [2022-11-22 00:29:03,159 INFO L112 eAbstractionObserver]: Analyzing ICFG mix011.opt.i [2022-11-22 00:29:03,168 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:29:03,180 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:29:03,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 00:29:03,181 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:29:03,245 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 00:29:03,283 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:29:03,301 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 123 transitions, 261 flow [2022-11-22 00:29:03,305 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 123 transitions, 261 flow [2022-11-22 00:29:03,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 123 transitions, 261 flow [2022-11-22 00:29:03,394 INFO L130 PetriNetUnfolder]: 2/120 cut-off events. [2022-11-22 00:29:03,394 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 00:29:03,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 120 events. 2/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2022-11-22 00:29:03,402 INFO L119 LiptonReduction]: Number of co-enabled transitions 2676 [2022-11-22 00:29:09,629 INFO L134 LiptonReduction]: Checked pairs total: 8718 [2022-11-22 00:29:09,630 INFO L136 LiptonReduction]: Total number of compositions: 109 [2022-11-22 00:29:09,646 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 30 transitions, 75 flow [2022-11-22 00:29:09,739 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1234 states, 1208 states have (on average 3.543046357615894) internal successors, (4280), 1233 states have internal predecessors, (4280), 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) [2022-11-22 00:29:09,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:29:09,764 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;@46fdd63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:29:09,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-22 00:29:09,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 1234 states, 1208 states have (on average 3.543046357615894) internal successors, (4280), 1233 states have internal predecessors, (4280), 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) [2022-11-22 00:29:09,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:29:09,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:29:09,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:29:09,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 00:29:09,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:29:09,782 INFO L85 PathProgramCache]: Analyzing trace with hash 16978409, now seen corresponding path program 1 times [2022-11-22 00:29:09,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:29:09,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989513296] [2022-11-22 00:29:09,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:29:09,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:29:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:29:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:29:10,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:29:10,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989513296] [2022-11-22 00:29:10,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989513296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:29:10,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:29:10,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:29:10,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957406444] [2022-11-22 00:29:10,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:29:10,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:29:10,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:29:10,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:29:10,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:29:10,123 INFO L87 Difference]: Start difference. First operand has 1234 states, 1208 states have (on average 3.543046357615894) internal successors, (4280), 1233 states have internal predecessors, (4280), 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) [2022-11-22 00:29:10,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:29:10,292 INFO L93 Difference]: Finished difference Result 678 states and 1939 transitions. [2022-11-22 00:29:10,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:29:10,295 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 [2022-11-22 00:29:10,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:29:10,321 INFO L225 Difference]: With dead ends: 678 [2022-11-22 00:29:10,321 INFO L226 Difference]: Without dead ends: 678 [2022-11-22 00:29:10,322 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 [2022-11-22 00:29:10,327 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:29:10,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 7 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:29:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-11-22 00:29:10,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 678. [2022-11-22 00:29:10,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 660 states have (on average 2.937878787878788) internal successors, (1939), 677 states have internal predecessors, (1939), 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) [2022-11-22 00:29:10,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 1939 transitions. [2022-11-22 00:29:10,421 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 1939 transitions. Word has length 4 [2022-11-22 00:29:10,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:29:10,423 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 1939 transitions. [2022-11-22 00:29:10,426 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) [2022-11-22 00:29:10,426 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 1939 transitions. [2022-11-22 00:29:10,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 00:29:10,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:29:10,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:29:10,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:29:10,429 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 00:29:10,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:29:10,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1628694148, now seen corresponding path program 1 times [2022-11-22 00:29:10,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:29:10,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098108487] [2022-11-22 00:29:10,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:29:10,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:29:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:29:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:29:10,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:29:10,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098108487] [2022-11-22 00:29:10,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098108487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:29:10,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:29:10,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:29:10,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717570291] [2022-11-22 00:29:10,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:29:10,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:29:10,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:29:10,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:29:10,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:29:10,596 INFO L87 Difference]: Start difference. First operand 678 states and 1939 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) [2022-11-22 00:29:10,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:29:10,710 INFO L93 Difference]: Finished difference Result 538 states and 1569 transitions. [2022-11-22 00:29:10,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:29:10,711 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 [2022-11-22 00:29:10,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:29:10,715 INFO L225 Difference]: With dead ends: 538 [2022-11-22 00:29:10,715 INFO L226 Difference]: Without dead ends: 538 [2022-11-22 00:29:10,753 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 [2022-11-22 00:29:10,754 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:29:10,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 8 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:29:10,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-22 00:29:10,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-11-22 00:29:10,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 532 states have (on average 2.949248120300752) internal successors, (1569), 537 states have internal predecessors, (1569), 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) [2022-11-22 00:29:10,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1569 transitions. [2022-11-22 00:29:10,778 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1569 transitions. Word has length 9 [2022-11-22 00:29:10,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:29:10,779 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 1569 transitions. [2022-11-22 00:29:10,779 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) [2022-11-22 00:29:10,779 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1569 transitions. [2022-11-22 00:29:10,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:29:10,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:29:10,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:29:10,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:29:10,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 00:29:10,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:29:10,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1050088537, now seen corresponding path program 1 times [2022-11-22 00:29:10,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:29:10,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865516922] [2022-11-22 00:29:10,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:29:10,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:29:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:29:10,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:29:10,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:29:10,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865516922] [2022-11-22 00:29:10,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865516922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:29:10,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:29:10,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:29:10,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115619457] [2022-11-22 00:29:10,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:29:10,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:29:10,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:29:10,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:29:10,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:29:10,936 INFO L87 Difference]: Start difference. First operand 538 states and 1569 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) [2022-11-22 00:29:11,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:29:11,073 INFO L93 Difference]: Finished difference Result 434 states and 1286 transitions. [2022-11-22 00:29:11,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:29:11,075 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 [2022-11-22 00:29:11,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:29:11,077 INFO L225 Difference]: With dead ends: 434 [2022-11-22 00:29:11,077 INFO L226 Difference]: Without dead ends: 434 [2022-11-22 00:29:11,078 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 [2022-11-22 00:29:11,079 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:29:11,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 9 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:29:11,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-11-22 00:29:11,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2022-11-22 00:29:11,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 431 states have (on average 2.9837587006960558) internal successors, (1286), 433 states have internal predecessors, (1286), 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) [2022-11-22 00:29:11,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1286 transitions. [2022-11-22 00:29:11,103 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1286 transitions. Word has length 10 [2022-11-22 00:29:11,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:29:11,104 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 1286 transitions. [2022-11-22 00:29:11,104 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) [2022-11-22 00:29:11,104 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1286 transitions. [2022-11-22 00:29:11,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 00:29:11,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:29:11,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:29:11,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:29:11,109 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 00:29:11,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:29:11,109 INFO L85 PathProgramCache]: Analyzing trace with hash -65601642, now seen corresponding path program 1 times [2022-11-22 00:29:11,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:29:11,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560569728] [2022-11-22 00:29:11,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:29:11,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:29:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:29:11,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:29:11,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:29:11,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560569728] [2022-11-22 00:29:11,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560569728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:29:11,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:29:11,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:29:11,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188470327] [2022-11-22 00:29:11,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:29:11,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:29:11,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:29:11,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:29:11,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:29:11,258 INFO L87 Difference]: Start difference. First operand 434 states and 1286 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-22 00:29:11,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:29:11,363 INFO L93 Difference]: Finished difference Result 422 states and 1265 transitions. [2022-11-22 00:29:11,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:29:11,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-11-22 00:29:11,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:29:11,364 INFO L225 Difference]: With dead ends: 422 [2022-11-22 00:29:11,364 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:29:11,364 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 [2022-11-22 00:29:11,365 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 56 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:29:11,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 6 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:29:11,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:29:11,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:29:11,367 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) [2022-11-22 00:29:11,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:29:11,367 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-22 00:29:11,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:29:11,367 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:29:11,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-22 00:29:11,368 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:29:11,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:29:11,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-22 00:29:11,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-22 00:29:11,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-22 00:29:11,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-22 00:29:11,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-22 00:29:11,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-22 00:29:11,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-22 00:29:11,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-22 00:29:11,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-22 00:29:11,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-22 00:29:11,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-22 00:29:11,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-22 00:29:11,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-22 00:29:11,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-22 00:29:11,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-22 00:29:11,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:29:11,377 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 00:29:11,381 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 00:29:11,382 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:29:11,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:29:11 BasicIcfg [2022-11-22 00:29:11,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:29:11,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:29:11,385 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:29:11,385 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:29:11,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:29:03" (3/4) ... [2022-11-22 00:29:11,389 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:29:11,394 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-22 00:29:11,394 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-22 00:29:11,394 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-22 00:29:11,402 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-22 00:29:11,402 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-22 00:29:11,402 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 00:29:11,402 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:29:11,456 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:29:11,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:29:11,456 INFO L158 Benchmark]: Toolchain (without parser) took 10008.28ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 153.4MB in the beginning and 106.5MB in the end (delta: 46.9MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2022-11-22 00:29:11,457 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory was 97.9MB in the beginning and 97.8MB in the end (delta: 83.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:29:11,457 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.97ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 129.2MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-22 00:29:11,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.71ms. Allocated memory is still 182.5MB. Free memory was 129.2MB in the beginning and 126.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:29:11,458 INFO L158 Benchmark]: Boogie Preprocessor took 30.69ms. Allocated memory is still 182.5MB. Free memory was 126.4MB in the beginning and 125.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:29:11,459 INFO L158 Benchmark]: RCFGBuilder took 982.24ms. Allocated memory is still 182.5MB. Free memory was 125.1MB in the beginning and 86.1MB in the end (delta: 39.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-22 00:29:11,459 INFO L158 Benchmark]: TraceAbstraction took 8232.64ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 85.2MB in the beginning and 109.6MB in the end (delta: -24.3MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2022-11-22 00:29:11,459 INFO L158 Benchmark]: Witness Printer took 70.92ms. Allocated memory is still 220.2MB. Free memory was 109.6MB in the beginning and 106.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:29:11,462 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 130.0MB. Free memory was 97.9MB in the beginning and 97.8MB in the end (delta: 83.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.97ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 129.2MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.71ms. Allocated memory is still 182.5MB. Free memory was 129.2MB in the beginning and 126.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.69ms. Allocated memory is still 182.5MB. Free memory was 126.4MB in the beginning and 125.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 982.24ms. Allocated memory is still 182.5MB. Free memory was 125.1MB in the beginning and 86.1MB in the end (delta: 39.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8232.64ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 85.2MB in the beginning and 109.6MB in the end (delta: -24.3MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Witness Printer took 70.92ms. Allocated memory is still 220.2MB. Free memory was 109.6MB in the beginning and 106.5MB 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, 131 PlacesBefore, 39 PlacesAfterwards, 123 TransitionsBefore, 30 TransitionsAfterwards, 2676 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 109 TotalNumberOfCompositions, 8718 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4490, independent: 4232, independent conditional: 0, independent unconditional: 4232, dependent: 258, dependent conditional: 0, dependent unconditional: 258, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1936, independent: 1874, independent conditional: 0, independent unconditional: 1874, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1936, independent: 1823, independent conditional: 0, independent unconditional: 1823, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 113, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 551, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 450, dependent conditional: 0, dependent unconditional: 450, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4490, independent: 2358, independent conditional: 0, independent unconditional: 2358, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 1936, unknown conditional: 0, unknown unconditional: 1936] , Statistics on independence cache: Total cache size (in pairs): 232, Positive cache size: 208, Positive conditional cache size: 0, Positive unconditional cache size: 208, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, 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: 757]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 757]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 156 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 219 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 16 mSDtfsCounter, 219 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1234occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-22 00:29:11,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c373351-9a2c-42b3-bb70-d7bce9a0580b/bin/utaipan-g80aRyZoba/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