./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12_variant.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_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/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_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/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_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/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 7be74b3f1207f4387a275e1f4e0e57734d5f1b215282bd8d49efde8c6948d207 --- 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 02:36:25,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:36:25,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:36:25,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:36:25,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:36:25,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:36:25,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:36:25,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:36:25,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:36:25,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:36:25,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:36:25,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:36:25,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:36:25,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:36:25,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:36:25,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:36:25,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:36:25,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:36:25,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:36:25,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:36:25,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:36:25,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:36:25,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:36:25,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:36:25,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:36:25,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:36:25,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:36:25,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:36:25,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:36:25,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:36:25,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:36:25,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:36:25,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:36:25,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:36:25,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:36:25,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:36:25,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:36:25,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:36:25,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:36:25,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:36:25,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:36:25,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:36:25,935 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:36:25,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:36:25,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:36:25,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:36:25,936 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:36:25,936 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:36:25,937 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:36:25,937 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:36:25,937 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:36:25,937 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:36:25,938 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:36:25,938 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:36:25,938 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:36:25,938 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:36:25,938 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:36:25,939 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:36:25,939 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:36:25,939 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:36:25,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:36:25,940 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:36:25,940 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:36:25,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:36:25,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:36:25,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:36:25,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:36:25,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:36:25,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:36:25,942 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:36:25,942 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:36:25,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:36:25,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:36:25,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:36:25,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:36:25,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:36:25,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:36:25,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:36:25,951 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:36:25,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:36:25,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:36:25,952 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:36:25,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:36:25,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:36:25,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:36:25,953 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_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7be74b3f1207f4387a275e1f4e0e57734d5f1b215282bd8d49efde8c6948d207 [2022-11-22 02:36:26,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:36:26,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:36:26,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:36:26,279 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:36:26,280 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:36:26,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-lit/sssc12_variant.i [2022-11-22 02:36:29,478 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:36:29,895 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:36:29,900 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/sv-benchmarks/c/pthread-lit/sssc12_variant.i [2022-11-22 02:36:29,927 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/bin/utaipan-g80aRyZoba/data/e397257e8/25104e04e9aa4aa6a2a1cb44c4f5930c/FLAGa94dc00cd [2022-11-22 02:36:29,947 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/bin/utaipan-g80aRyZoba/data/e397257e8/25104e04e9aa4aa6a2a1cb44c4f5930c [2022-11-22 02:36:29,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:36:29,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:36:29,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:36:29,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:36:29,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:36:29,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:36:29" (1/1) ... [2022-11-22 02:36:29,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27811cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:29, skipping insertion in model container [2022-11-22 02:36:29,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:36:29" (1/1) ... [2022-11-22 02:36:29,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:36:30,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:36:30,566 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_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/sv-benchmarks/c/pthread-lit/sssc12_variant.i[46865,46878] [2022-11-22 02:36:30,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:36:30,602 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:36:30,638 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_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/sv-benchmarks/c/pthread-lit/sssc12_variant.i[46865,46878] [2022-11-22 02:36:30,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:36:30,702 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:36:30,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30 WrapperNode [2022-11-22 02:36:30,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:36:30,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:36:30,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:36:30,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:36:30,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (1/1) ... [2022-11-22 02:36:30,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (1/1) ... [2022-11-22 02:36:30,751 INFO L138 Inliner]: procedures = 275, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93 [2022-11-22 02:36:30,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:36:30,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:36:30,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:36:30,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:36:30,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (1/1) ... [2022-11-22 02:36:30,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (1/1) ... [2022-11-22 02:36:30,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (1/1) ... [2022-11-22 02:36:30,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (1/1) ... [2022-11-22 02:36:30,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (1/1) ... [2022-11-22 02:36:30,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (1/1) ... [2022-11-22 02:36:30,777 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (1/1) ... [2022-11-22 02:36:30,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (1/1) ... [2022-11-22 02:36:30,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:36:30,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:36:30,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:36:30,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:36:30,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (1/1) ... [2022-11-22 02:36:30,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:36:30,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:36:30,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:36:30,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab6fb44-5a2d-4683-8aad-fdce83d4ae2e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:36:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 02:36:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2022-11-22 02:36:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2022-11-22 02:36:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:36:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:36:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 02:36:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:36:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:36:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:36:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:36:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:36:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:36:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:36:30,882 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 02:36:31,134 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:36:31,136 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:36:31,399 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:36:31,453 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:36:31,454 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 02:36:31,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:36:31 BoogieIcfgContainer [2022-11-22 02:36:31,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:36:31,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:36:31,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:36:31,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:36:31,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:36:29" (1/3) ... [2022-11-22 02:36:31,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a8c85a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:36:31, skipping insertion in model container [2022-11-22 02:36:31,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:36:30" (2/3) ... [2022-11-22 02:36:31,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a8c85a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:36:31, skipping insertion in model container [2022-11-22 02:36:31,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:36:31" (3/3) ... [2022-11-22 02:36:31,472 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12_variant.i [2022-11-22 02:36:31,482 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:36:31,496 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:36:31,496 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 02:36:31,496 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:36:31,573 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:36:31,619 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:36:31,635 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 99 transitions, 203 flow [2022-11-22 02:36:31,639 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 99 transitions, 203 flow [2022-11-22 02:36:31,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 99 transitions, 203 flow [2022-11-22 02:36:31,705 INFO L130 PetriNetUnfolder]: 7/111 cut-off events. [2022-11-22 02:36:31,706 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 02:36:31,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 111 events. 7/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 61. Up to 4 conditions per place. [2022-11-22 02:36:31,715 INFO L119 LiptonReduction]: Number of co-enabled transitions 1410 [2022-11-22 02:36:36,886 INFO L134 LiptonReduction]: Checked pairs total: 1637 [2022-11-22 02:36:36,886 INFO L136 LiptonReduction]: Total number of compositions: 115 [2022-11-22 02:36:36,905 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 17 transitions, 39 flow [2022-11-22 02:36:36,933 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 57 states, 44 states have (on average 2.272727272727273) internal successors, (100), 56 states have internal predecessors, (100), 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 02:36:36,964 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:36:36,977 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;@24b5030a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:36:36,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-22 02:36:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 44 states have (on average 2.272727272727273) internal successors, (100), 56 states have internal predecessors, (100), 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 02:36:36,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:36:36,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:36,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:36:36,988 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-22 02:36:37,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:37,001 INFO L85 PathProgramCache]: Analyzing trace with hash 14270615, now seen corresponding path program 1 times [2022-11-22 02:36:37,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:37,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025491166] [2022-11-22 02:36:37,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:37,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:37,376 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 02:36:37,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:37,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025491166] [2022-11-22 02:36:37,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025491166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:37,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:37,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:36:37,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146463874] [2022-11-22 02:36:37,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:37,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:36:37,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:37,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:36:37,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:36:37,418 INFO L87 Difference]: Start difference. First operand has 57 states, 44 states have (on average 2.272727272727273) internal successors, (100), 56 states have internal predecessors, (100), 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 02:36:37,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:37,485 INFO L93 Difference]: Finished difference Result 31 states and 52 transitions. [2022-11-22 02:36:37,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:36:37,488 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 02:36:37,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:37,500 INFO L225 Difference]: With dead ends: 31 [2022-11-22 02:36:37,500 INFO L226 Difference]: Without dead ends: 31 [2022-11-22 02:36:37,501 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 02:36:37,507 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:37,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:36:37,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-22 02:36:37,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-22 02:36:37,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.8571428571428572) internal successors, (52), 30 states have internal predecessors, (52), 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 02:36:37,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 52 transitions. [2022-11-22 02:36:37,563 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 52 transitions. Word has length 4 [2022-11-22 02:36:37,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:37,564 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 52 transitions. [2022-11-22 02:36:37,568 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 02:36:37,569 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2022-11-22 02:36:37,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:36:37,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:37,571 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-22 02:36:37,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:36:37,572 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-22 02:36:37,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash 829088022, now seen corresponding path program 1 times [2022-11-22 02:36:37,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:37,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164913818] [2022-11-22 02:36:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:37,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:36:37,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:36:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:36:37,711 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:36:37,711 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:36:37,713 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2022-11-22 02:36:37,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-11-22 02:36:37,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-11-22 02:36:37,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-11-22 02:36:37,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-11-22 02:36:37,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-11-22 02:36:37,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-11-22 02:36:37,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-11-22 02:36:37,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-11-22 02:36:37,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-11-22 02:36:37,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-11-22 02:36:37,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-11-22 02:36:37,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-11-22 02:36:37,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:36:37,722 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 02:36:37,725 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-22 02:36:37,725 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-22 02:36:37,752 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:36:37,756 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:36:37,756 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 147 transitions, 306 flow [2022-11-22 02:36:37,757 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 147 transitions, 306 flow [2022-11-22 02:36:37,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 147 transitions, 306 flow [2022-11-22 02:36:37,800 INFO L130 PetriNetUnfolder]: 12/173 cut-off events. [2022-11-22 02:36:37,801 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 02:36:37,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 173 events. 12/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 338 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 112. Up to 6 conditions per place. [2022-11-22 02:36:37,809 INFO L119 LiptonReduction]: Number of co-enabled transitions 7332 [2022-11-22 02:36:42,541 INFO L134 LiptonReduction]: Checked pairs total: 22304 [2022-11-22 02:36:42,541 INFO L136 LiptonReduction]: Total number of compositions: 123 [2022-11-22 02:36:42,542 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 50 transitions, 112 flow [2022-11-22 02:36:42,661 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2501 states, 2398 states have (on average 3.020433694745621) internal successors, (7243), 2500 states have internal predecessors, (7243), 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 02:36:42,663 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:36:42,664 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;@24b5030a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:36:42,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-11-22 02:36:42,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 2501 states, 2398 states have (on average 3.020433694745621) internal successors, (7243), 2500 states have internal predecessors, (7243), 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 02:36:42,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:36:42,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:42,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:36:42,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-22 02:36:42,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:42,675 INFO L85 PathProgramCache]: Analyzing trace with hash 746296481, now seen corresponding path program 1 times [2022-11-22 02:36:42,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:42,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667103316] [2022-11-22 02:36:42,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:42,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:42,739 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 02:36:42,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:42,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667103316] [2022-11-22 02:36:42,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667103316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:42,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:42,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:36:42,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397280431] [2022-11-22 02:36:42,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:42,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:36:42,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:42,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:36:42,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:36:42,753 INFO L87 Difference]: Start difference. First operand has 2501 states, 2398 states have (on average 3.020433694745621) internal successors, (7243), 2500 states have internal predecessors, (7243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:42,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:42,941 INFO L93 Difference]: Finished difference Result 2878 states and 8227 transitions. [2022-11-22 02:36:42,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:36:42,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:36:42,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:42,970 INFO L225 Difference]: With dead ends: 2878 [2022-11-22 02:36:42,970 INFO L226 Difference]: Without dead ends: 2878 [2022-11-22 02:36:42,971 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 02:36:42,972 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 39 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:42,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 12 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:36:42,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2022-11-22 02:36:43,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2283. [2022-11-22 02:36:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2246 states have (on average 2.952359750667854) internal successors, (6631), 2282 states have internal predecessors, (6631), 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 02:36:43,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 6631 transitions. [2022-11-22 02:36:43,135 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 6631 transitions. Word has length 5 [2022-11-22 02:36:43,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:43,136 INFO L495 AbstractCegarLoop]: Abstraction has 2283 states and 6631 transitions. [2022-11-22 02:36:43,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:43,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 6631 transitions. [2022-11-22 02:36:43,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:36:43,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:43,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:36:43,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:36:43,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-22 02:36:43,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:43,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1660355053, now seen corresponding path program 1 times [2022-11-22 02:36:43,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:43,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539180386] [2022-11-22 02:36:43,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:43,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:43,197 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 02:36:43,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:43,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539180386] [2022-11-22 02:36:43,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539180386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:43,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:43,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:36:43,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16111804] [2022-11-22 02:36:43,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:43,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:36:43,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:43,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:36:43,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:36:43,200 INFO L87 Difference]: Start difference. First operand 2283 states and 6631 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:43,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:43,356 INFO L93 Difference]: Finished difference Result 2530 states and 7239 transitions. [2022-11-22 02:36:43,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:36:43,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 02:36:43,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:43,375 INFO L225 Difference]: With dead ends: 2530 [2022-11-22 02:36:43,375 INFO L226 Difference]: Without dead ends: 2530 [2022-11-22 02:36:43,376 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 02:36:43,377 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:43,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 16 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:36:43,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2022-11-22 02:36:43,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2145. [2022-11-22 02:36:43,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 2112 states have (on average 2.9171401515151514) internal successors, (6161), 2144 states have internal predecessors, (6161), 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 02:36:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 6161 transitions. [2022-11-22 02:36:43,456 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 6161 transitions. Word has length 6 [2022-11-22 02:36:43,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:43,456 INFO L495 AbstractCegarLoop]: Abstraction has 2145 states and 6161 transitions. [2022-11-22 02:36:43,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:43,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 6161 transitions. [2022-11-22 02:36:43,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:36:43,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:43,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:36:43,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:36:43,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-22 02:36:43,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:43,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1328692068, now seen corresponding path program 1 times [2022-11-22 02:36:43,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:43,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688824715] [2022-11-22 02:36:43,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:43,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:43,538 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 02:36:43,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:43,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688824715] [2022-11-22 02:36:43,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688824715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:43,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:43,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:36:43,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163392336] [2022-11-22 02:36:43,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:43,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:36:43,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:43,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:36:43,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:36:43,541 INFO L87 Difference]: Start difference. First operand 2145 states and 6161 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 02:36:43,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:43,648 INFO L93 Difference]: Finished difference Result 2124 states and 6011 transitions. [2022-11-22 02:36:43,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:36:43,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-11-22 02:36:43,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:43,663 INFO L225 Difference]: With dead ends: 2124 [2022-11-22 02:36:43,663 INFO L226 Difference]: Without dead ends: 2124 [2022-11-22 02:36:43,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:36:43,665 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 26 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:43,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 50 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:36:43,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2022-11-22 02:36:43,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 2079. [2022-11-22 02:36:43,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 2046 states have (on average 2.898338220918866) internal successors, (5930), 2078 states have internal predecessors, (5930), 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 02:36:43,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 5930 transitions. [2022-11-22 02:36:43,739 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 5930 transitions. Word has length 11 [2022-11-22 02:36:43,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:43,739 INFO L495 AbstractCegarLoop]: Abstraction has 2079 states and 5930 transitions. [2022-11-22 02:36:43,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 02:36:43,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 5930 transitions. [2022-11-22 02:36:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:36:43,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:43,741 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-22 02:36:43,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:36:43,742 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-22 02:36:43,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:43,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2055775785, now seen corresponding path program 1 times [2022-11-22 02:36:43,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:43,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670228817] [2022-11-22 02:36:43,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:43,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:36:43,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:36:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:36:43,813 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:36:43,813 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:36:43,813 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2022-11-22 02:36:43,814 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2022-11-22 02:36:43,814 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2022-11-22 02:36:43,814 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2022-11-22 02:36:43,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2022-11-22 02:36:43,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2022-11-22 02:36:43,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2022-11-22 02:36:43,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2022-11-22 02:36:43,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2022-11-22 02:36:43,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2022-11-22 02:36:43,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2022-11-22 02:36:43,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2022-11-22 02:36:43,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2022-11-22 02:36:43,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2022-11-22 02:36:43,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2022-11-22 02:36:43,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2022-11-22 02:36:43,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2022-11-22 02:36:43,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2022-11-22 02:36:43,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2022-11-22 02:36:43,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:36:43,819 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 02:36:43,819 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-22 02:36:43,819 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-22 02:36:43,845 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:36:43,849 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:36:43,849 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 195 transitions, 411 flow [2022-11-22 02:36:43,850 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 195 transitions, 411 flow [2022-11-22 02:36:43,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 195 transitions, 411 flow [2022-11-22 02:36:43,903 INFO L130 PetriNetUnfolder]: 17/235 cut-off events. [2022-11-22 02:36:43,903 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-22 02:36:43,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 235 events. 17/235 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 627 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 177. Up to 8 conditions per place. [2022-11-22 02:36:43,924 INFO L119 LiptonReduction]: Number of co-enabled transitions 17766 [2022-11-22 02:36:48,841 INFO L134 LiptonReduction]: Checked pairs total: 63630 [2022-11-22 02:36:48,842 INFO L136 LiptonReduction]: Total number of compositions: 160 [2022-11-22 02:36:48,843 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 74 transitions, 169 flow [2022-11-22 02:36:50,756 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 52605 states, 51866 states have (on average 4.046176686075657) internal successors, (209859), 52604 states have internal predecessors, (209859), 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 02:36:50,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:36:50,759 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;@24b5030a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:36:50,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-22 02:36:50,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 52605 states, 51866 states have (on average 4.046176686075657) internal successors, (209859), 52604 states have internal predecessors, (209859), 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 02:36:50,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:36:50,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:50,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:36:51,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-22 02:36:51,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:51,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1129861502, now seen corresponding path program 1 times [2022-11-22 02:36:51,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:51,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344988397] [2022-11-22 02:36:51,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:51,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:51,070 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 02:36:51,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:51,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344988397] [2022-11-22 02:36:51,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344988397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:51,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:51,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:36:51,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818148640] [2022-11-22 02:36:51,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:51,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:36:51,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:51,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:36:51,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:36:51,164 INFO L87 Difference]: Start difference. First operand has 52605 states, 51866 states have (on average 4.046176686075657) internal successors, (209859), 52604 states have internal predecessors, (209859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:53,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:53,439 INFO L93 Difference]: Finished difference Result 54970 states and 214885 transitions. [2022-11-22 02:36:53,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:36:53,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:36:53,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:54,228 INFO L225 Difference]: With dead ends: 54970 [2022-11-22 02:36:54,228 INFO L226 Difference]: Without dead ends: 54970 [2022-11-22 02:36:54,229 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 02:36:54,230 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 53 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:54,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 21 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:36:54,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54970 states. [2022-11-22 02:36:56,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54970 to 50960. [2022-11-22 02:36:57,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50960 states, 50681 states have (on average 3.9392869122550858) internal successors, (199647), 50959 states have internal predecessors, (199647), 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 02:36:57,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50960 states to 50960 states and 199647 transitions. [2022-11-22 02:36:57,757 INFO L78 Accepts]: Start accepts. Automaton has 50960 states and 199647 transitions. Word has length 5 [2022-11-22 02:36:57,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:57,760 INFO L495 AbstractCegarLoop]: Abstraction has 50960 states and 199647 transitions. [2022-11-22 02:36:57,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:57,760 INFO L276 IsEmpty]: Start isEmpty. Operand 50960 states and 199647 transitions. [2022-11-22 02:36:57,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 02:36:57,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:57,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:36:57,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:36:57,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-22 02:36:57,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:57,773 INFO L85 PathProgramCache]: Analyzing trace with hash 25505609, now seen corresponding path program 1 times [2022-11-22 02:36:57,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:57,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704200306] [2022-11-22 02:36:57,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:57,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:57,893 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 02:36:57,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:57,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704200306] [2022-11-22 02:36:57,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704200306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:57,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:57,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:36:57,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805185029] [2022-11-22 02:36:57,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:57,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:36:57,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:57,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:36:57,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:36:57,896 INFO L87 Difference]: Start difference. First operand 50960 states and 199647 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:58,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:58,682 INFO L93 Difference]: Finished difference Result 49854 states and 192913 transitions. [2022-11-22 02:36:58,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:36:58,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-22 02:36:58,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:59,491 INFO L225 Difference]: With dead ends: 49854 [2022-11-22 02:36:59,492 INFO L226 Difference]: Without dead ends: 49854 [2022-11-22 02:36:59,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:36:59,493 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 52 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:59,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 83 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:36:59,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49854 states. [2022-11-22 02:37:01,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49854 to 48651. [2022-11-22 02:37:01,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48651 states, 48372 states have (on average 3.9174935913338294) internal successors, (189497), 48650 states have internal predecessors, (189497), 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 02:37:02,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48651 states to 48651 states and 189497 transitions. [2022-11-22 02:37:02,148 INFO L78 Accepts]: Start accepts. Automaton has 48651 states and 189497 transitions. Word has length 12 [2022-11-22 02:37:02,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:02,149 INFO L495 AbstractCegarLoop]: Abstraction has 48651 states and 189497 transitions. [2022-11-22 02:37:02,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:02,150 INFO L276 IsEmpty]: Start isEmpty. Operand 48651 states and 189497 transitions. [2022-11-22 02:37:02,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 02:37:02,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:02,154 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:02,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:37:02,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-22 02:37:02,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:02,158 INFO L85 PathProgramCache]: Analyzing trace with hash -973298383, now seen corresponding path program 1 times [2022-11-22 02:37:02,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:02,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941027563] [2022-11-22 02:37:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:02,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:37:02,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:02,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941027563] [2022-11-22 02:37:02,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941027563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:02,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:02,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:37:02,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257622615] [2022-11-22 02:37:02,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:02,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:37:02,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:02,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:37:02,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:37:02,253 INFO L87 Difference]: Start difference. First operand 48651 states and 189497 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 02:37:03,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:03,168 INFO L93 Difference]: Finished difference Result 49710 states and 191223 transitions. [2022-11-22 02:37:03,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:37:03,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 02:37:03,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:03,641 INFO L225 Difference]: With dead ends: 49710 [2022-11-22 02:37:03,641 INFO L226 Difference]: Without dead ends: 49710 [2022-11-22 02:37:03,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:37:03,645 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 52 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:03,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 83 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:37:03,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49710 states. [2022-11-22 02:37:05,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49710 to 48313. [2022-11-22 02:37:05,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48313 states, 48034 states have (on average 3.8985302077694968) internal successors, (187262), 48312 states have internal predecessors, (187262), 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 02:37:05,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48313 states to 48313 states and 187262 transitions. [2022-11-22 02:37:05,829 INFO L78 Accepts]: Start accepts. Automaton has 48313 states and 187262 transitions. Word has length 15 [2022-11-22 02:37:05,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:05,830 INFO L495 AbstractCegarLoop]: Abstraction has 48313 states and 187262 transitions. [2022-11-22 02:37:05,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 02:37:05,830 INFO L276 IsEmpty]: Start isEmpty. Operand 48313 states and 187262 transitions. [2022-11-22 02:37:05,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 02:37:05,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:05,831 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-11-22 02:37:05,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:37:05,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-22 02:37:05,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:05,832 INFO L85 PathProgramCache]: Analyzing trace with hash -322944241, now seen corresponding path program 1 times [2022-11-22 02:37:05,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:05,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391684958] [2022-11-22 02:37:05,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:05,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:37:05,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:37:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:37:05,865 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:37:05,868 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:37:05,868 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2022-11-22 02:37:05,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2022-11-22 02:37:05,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2022-11-22 02:37:05,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2022-11-22 02:37:05,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2022-11-22 02:37:05,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2022-11-22 02:37:05,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2022-11-22 02:37:05,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2022-11-22 02:37:05,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2022-11-22 02:37:05,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2022-11-22 02:37:05,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2022-11-22 02:37:05,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2022-11-22 02:37:05,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2022-11-22 02:37:05,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2022-11-22 02:37:05,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2022-11-22 02:37:05,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2022-11-22 02:37:05,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2022-11-22 02:37:05,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2022-11-22 02:37:05,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2022-11-22 02:37:05,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2022-11-22 02:37:05,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2022-11-22 02:37:05,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2022-11-22 02:37:05,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2022-11-22 02:37:05,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2022-11-22 02:37:05,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2022-11-22 02:37:05,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:37:05,879 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 02:37:05,879 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-22 02:37:05,880 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-22 02:37:05,929 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:37:05,933 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:37:05,934 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 243 transitions, 518 flow [2022-11-22 02:37:05,935 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 243 transitions, 518 flow [2022-11-22 02:37:05,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 243 transitions, 518 flow [2022-11-22 02:37:06,005 INFO L130 PetriNetUnfolder]: 22/297 cut-off events. [2022-11-22 02:37:06,005 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-22 02:37:06,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 297 events. 22/297 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 917 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 243. Up to 10 conditions per place. [2022-11-22 02:37:06,032 INFO L119 LiptonReduction]: Number of co-enabled transitions 32712 [2022-11-22 02:37:11,956 INFO L134 LiptonReduction]: Checked pairs total: 111228 [2022-11-22 02:37:11,956 INFO L136 LiptonReduction]: Total number of compositions: 192 [2022-11-22 02:37:11,960 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 94 transitions, 220 flow