./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/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_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/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_b9cc76ec-99fa-44d9-99d7-75a933071fe6/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 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --- 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 02:24:46,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:24:46,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:24:46,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:24:46,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:24:46,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:24:46,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:24:46,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:24:46,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:24:46,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:24:46,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:24:46,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:24:46,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:24:46,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:24:46,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:24:46,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:24:46,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:24:46,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:24:46,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:24:46,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:24:46,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:24:46,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:24:46,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:24:46,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:24:46,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:24:46,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:24:46,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:24:46,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:24:46,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:24:46,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:24:46,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:24:46,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:24:46,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:24:46,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:24:46,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:24:46,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:24:46,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:24:46,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:24:46,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:24:46,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:24:46,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:24:46,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:24:46,934 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:24:46,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:24:46,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:24:46,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:24:46,936 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:24:46,936 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:24:46,936 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:24:46,937 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:24:46,937 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:24:46,937 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:24:46,937 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:24:46,937 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:24:46,938 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:24:46,938 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:24:46,938 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:24:46,938 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:24:46,939 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:24:46,939 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:24:46,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:24:46,940 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:24:46,940 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:24:46,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:24:46,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:24:46,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:24:46,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:24:46,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:24:46,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:24:46,941 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:24:46,942 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:24:46,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:24:46,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:24:46,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:24:46,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:24:46,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:24:46,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:24:46,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:24:46,944 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:24:46,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:24:46,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:24:46,944 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:24:46,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:24:46,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:24:46,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:24:46,945 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_b9cc76ec-99fa-44d9-99d7-75a933071fe6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 [2022-11-22 02:24:47,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:24:47,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:24:47,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:24:47,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:24:47,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:24:47,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-11-22 02:24:50,358 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:24:50,570 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:24:50,571 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-11-22 02:24:50,580 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/data/119189f58/f36cad78e86c43d0b6536182e03e99fb/FLAG618c9c2f5 [2022-11-22 02:24:50,606 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/data/119189f58/f36cad78e86c43d0b6536182e03e99fb [2022-11-22 02:24:50,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:24:50,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:24:50,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:24:50,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:24:50,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:24:50,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:50,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182f6167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50, skipping insertion in model container [2022-11-22 02:24:50,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:50,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:24:50,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:24:50,882 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_b9cc76ec-99fa-44d9-99d7-75a933071fe6/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-11-22 02:24:50,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:24:50,894 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:24:50,921 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_b9cc76ec-99fa-44d9-99d7-75a933071fe6/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-11-22 02:24:50,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:24:50,938 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:24:50,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50 WrapperNode [2022-11-22 02:24:50,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:24:50,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:24:50,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:24:50,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:24:50,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:50,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:51,018 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 258 [2022-11-22 02:24:51,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:24:51,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:24:51,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:24:51,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:24:51,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:51,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:51,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:51,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:51,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:51,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:51,052 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:51,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:51,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:24:51,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:24:51,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:24:51,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:24:51,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (1/1) ... [2022-11-22 02:24:51,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:24:51,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:24:51,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:24:51,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:24:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:24:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-22 02:24:51,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-22 02:24:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-22 02:24:51,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-22 02:24:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-22 02:24:51,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-22 02:24:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-22 02:24:51,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-22 02:24:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:24:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-22 02:24:51,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-22 02:24:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:24:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:24:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 02:24:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 02:24:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:24:51,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:24:51,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:24:51,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:24:51,183 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 02:24:51,308 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:24:51,315 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:24:51,811 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:24:52,024 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:24:52,025 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:24:52,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:52 BoogieIcfgContainer [2022-11-22 02:24:52,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:24:52,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:24:52,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:24:52,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:24:52,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:24:50" (1/3) ... [2022-11-22 02:24:52,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7b927c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:24:52, skipping insertion in model container [2022-11-22 02:24:52,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:24:50" (2/3) ... [2022-11-22 02:24:52,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7b927c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:24:52, skipping insertion in model container [2022-11-22 02:24:52,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:52" (3/3) ... [2022-11-22 02:24:52,038 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-11-22 02:24:52,048 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:24:52,060 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:24:52,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-22 02:24:52,061 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:24:52,224 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-22 02:24:52,289 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:24:52,306 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 184 transitions, 408 flow [2022-11-22 02:24:52,311 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 184 transitions, 408 flow [2022-11-22 02:24:52,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 184 transitions, 408 flow [2022-11-22 02:24:52,402 INFO L130 PetriNetUnfolder]: 2/179 cut-off events. [2022-11-22 02:24:52,403 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-22 02:24:52,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 179 events. 2/179 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 139 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 136. Up to 2 conditions per place. [2022-11-22 02:24:52,413 INFO L119 LiptonReduction]: Number of co-enabled transitions 4234 [2022-11-22 02:25:04,186 INFO L134 LiptonReduction]: Checked pairs total: 18369 [2022-11-22 02:25:04,187 INFO L136 LiptonReduction]: Total number of compositions: 146 [2022-11-22 02:25:04,196 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 62 transitions, 164 flow [2022-11-22 02:25:10,482 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 93610 states, 90486 states have (on average 4.946544216784917) internal successors, (447593), 93609 states have internal predecessors, (447593), 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 02:25:10,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:25:10,536 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;@293eeebc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:25:10,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2022-11-22 02:25:10,670 INFO L276 IsEmpty]: Start isEmpty. Operand has 93610 states, 90486 states have (on average 4.946544216784917) internal successors, (447593), 93609 states have internal predecessors, (447593), 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 02:25:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:25:10,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:10,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:25:10,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:10,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:10,693 INFO L85 PathProgramCache]: Analyzing trace with hash 802356, now seen corresponding path program 1 times [2022-11-22 02:25:10,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:10,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431781352] [2022-11-22 02:25:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:10,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:11,476 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 02:25:11,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:11,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431781352] [2022-11-22 02:25:11,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431781352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:11,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:11,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:25:11,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935941883] [2022-11-22 02:25:11,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:11,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:25:11,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:11,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:25:11,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:11,717 INFO L87 Difference]: Start difference. First operand has 93610 states, 90486 states have (on average 4.946544216784917) internal successors, (447593), 93609 states have internal predecessors, (447593), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 02:25:14,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:14,473 INFO L93 Difference]: Finished difference Result 92894 states and 443867 transitions. [2022-11-22 02:25:14,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:25:14,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-22 02:25:14,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:16,279 INFO L225 Difference]: With dead ends: 92894 [2022-11-22 02:25:16,280 INFO L226 Difference]: Without dead ends: 92894 [2022-11-22 02:25:16,281 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 02:25:16,284 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:16,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:25:16,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92894 states. [2022-11-22 02:25:21,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92894 to 92894. [2022-11-22 02:25:21,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92894 states, 89802 states have (on average 4.942729560588851) internal successors, (443867), 92893 states have internal predecessors, (443867), 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 02:25:22,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92894 states to 92894 states and 443867 transitions. [2022-11-22 02:25:22,880 INFO L78 Accepts]: Start accepts. Automaton has 92894 states and 443867 transitions. Word has length 3 [2022-11-22 02:25:22,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:22,881 INFO L495 AbstractCegarLoop]: Abstraction has 92894 states and 443867 transitions. [2022-11-22 02:25:22,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 02:25:22,882 INFO L276 IsEmpty]: Start isEmpty. Operand 92894 states and 443867 transitions. [2022-11-22 02:25:22,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:25:22,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:22,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:25:22,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:25:22,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:22,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:22,885 INFO L85 PathProgramCache]: Analyzing trace with hash 771087960, now seen corresponding path program 1 times [2022-11-22 02:25:22,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:22,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252620356] [2022-11-22 02:25:22,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:22,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:23,150 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 02:25:23,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:23,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252620356] [2022-11-22 02:25:23,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252620356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:23,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:23,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:23,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097293587] [2022-11-22 02:25:23,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:23,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:25:23,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:23,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:25:23,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:23,158 INFO L87 Difference]: Start difference. First operand 92894 states and 443867 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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 02:25:25,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:25,000 INFO L93 Difference]: Finished difference Result 61164 states and 294287 transitions. [2022-11-22 02:25:25,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:25:25,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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 02:25:25,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:25,492 INFO L225 Difference]: With dead ends: 61164 [2022-11-22 02:25:25,492 INFO L226 Difference]: Without dead ends: 61164 [2022-11-22 02:25:25,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:25:25,494 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 99 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:25,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 3 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:25:26,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61164 states. [2022-11-22 02:25:28,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61164 to 49692. [2022-11-22 02:25:28,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49692 states, 48701 states have (on average 4.770559126095973) internal successors, (232331), 49691 states have internal predecessors, (232331), 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 02:25:28,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49692 states to 49692 states and 232331 transitions. [2022-11-22 02:25:28,620 INFO L78 Accepts]: Start accepts. Automaton has 49692 states and 232331 transitions. Word has length 5 [2022-11-22 02:25:28,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:28,620 INFO L495 AbstractCegarLoop]: Abstraction has 49692 states and 232331 transitions. [2022-11-22 02:25:28,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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 02:25:28,621 INFO L276 IsEmpty]: Start isEmpty. Operand 49692 states and 232331 transitions. [2022-11-22 02:25:28,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:25:28,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:28,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:25:28,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:25:28,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:28,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:28,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1860597101, now seen corresponding path program 1 times [2022-11-22 02:25:28,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:28,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192042023] [2022-11-22 02:25:28,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:28,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:28,833 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 02:25:28,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:28,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192042023] [2022-11-22 02:25:28,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192042023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:28,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:28,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:25:28,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278360927] [2022-11-22 02:25:28,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:28,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:25:28,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:28,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:25:28,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:25:28,837 INFO L87 Difference]: Start difference. First operand 49692 states and 232331 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 02:25:30,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:30,423 INFO L93 Difference]: Finished difference Result 67320 states and 288460 transitions. [2022-11-22 02:25:30,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:25:30,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 02:25:30,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:31,083 INFO L225 Difference]: With dead ends: 67320 [2022-11-22 02:25:31,084 INFO L226 Difference]: Without dead ends: 67320 [2022-11-22 02:25:31,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:25:31,085 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 55 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:31,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:25:31,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67320 states. [2022-11-22 02:25:33,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67320 to 55850. [2022-11-22 02:25:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55850 states, 55009 states have (on average 4.660982748277554) internal successors, (256396), 55849 states have internal predecessors, (256396), 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 02:25:34,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55850 states to 55850 states and 256396 transitions. [2022-11-22 02:25:34,751 INFO L78 Accepts]: Start accepts. Automaton has 55850 states and 256396 transitions. Word has length 6 [2022-11-22 02:25:34,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:34,752 INFO L495 AbstractCegarLoop]: Abstraction has 55850 states and 256396 transitions. [2022-11-22 02:25:34,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 02:25:34,752 INFO L276 IsEmpty]: Start isEmpty. Operand 55850 states and 256396 transitions. [2022-11-22 02:25:34,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:25:34,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:34,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:25:34,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:25:34,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:34,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:34,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1860597100, now seen corresponding path program 1 times [2022-11-22 02:25:34,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:34,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103070820] [2022-11-22 02:25:34,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:34,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:34,804 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 02:25:34,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:34,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103070820] [2022-11-22 02:25:34,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103070820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:34,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:34,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:25:34,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154441669] [2022-11-22 02:25:34,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:34,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:25:34,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:34,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:25:34,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:34,816 INFO L87 Difference]: Start difference. First operand 55850 states and 256396 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 02:25:35,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:35,136 INFO L93 Difference]: Finished difference Result 23762 states and 107717 transitions. [2022-11-22 02:25:35,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:25:35,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 02:25:35,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:35,288 INFO L225 Difference]: With dead ends: 23762 [2022-11-22 02:25:35,288 INFO L226 Difference]: Without dead ends: 23762 [2022-11-22 02:25:35,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:25:35,293 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:35,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:25:35,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23762 states. [2022-11-22 02:25:36,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23762 to 23762. [2022-11-22 02:25:36,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23762 states, 23531 states have (on average 4.577663507713229) internal successors, (107717), 23761 states have internal predecessors, (107717), 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 02:25:36,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23762 states to 23762 states and 107717 transitions. [2022-11-22 02:25:36,709 INFO L78 Accepts]: Start accepts. Automaton has 23762 states and 107717 transitions. Word has length 6 [2022-11-22 02:25:36,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:36,709 INFO L495 AbstractCegarLoop]: Abstraction has 23762 states and 107717 transitions. [2022-11-22 02:25:36,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 02:25:36,709 INFO L276 IsEmpty]: Start isEmpty. Operand 23762 states and 107717 transitions. [2022-11-22 02:25:36,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:25:36,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:36,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:25:36,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:25:36,711 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:36,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:36,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1866078887, now seen corresponding path program 1 times [2022-11-22 02:25:36,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:36,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452439102] [2022-11-22 02:25:36,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:36,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:36,853 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 02:25:36,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:36,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452439102] [2022-11-22 02:25:36,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452439102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:36,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:36,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:36,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605976751] [2022-11-22 02:25:36,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:36,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:25:36,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:36,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:25:36,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:36,856 INFO L87 Difference]: Start difference. First operand 23762 states and 107717 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 02:25:37,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:37,311 INFO L93 Difference]: Finished difference Result 19888 states and 86736 transitions. [2022-11-22 02:25:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:25:37,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 02:25:37,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:37,436 INFO L225 Difference]: With dead ends: 19888 [2022-11-22 02:25:37,436 INFO L226 Difference]: Without dead ends: 19884 [2022-11-22 02:25:37,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:37,437 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 69 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:37,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 4 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:25:37,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19884 states. [2022-11-22 02:25:38,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19884 to 18026. [2022-11-22 02:25:38,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18026 states, 17796 states have (on average 4.315632726455383) internal successors, (76801), 18025 states have internal predecessors, (76801), 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 02:25:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18026 states to 18026 states and 76801 transitions. [2022-11-22 02:25:38,684 INFO L78 Accepts]: Start accepts. Automaton has 18026 states and 76801 transitions. Word has length 6 [2022-11-22 02:25:38,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:38,684 INFO L495 AbstractCegarLoop]: Abstraction has 18026 states and 76801 transitions. [2022-11-22 02:25:38,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 02:25:38,685 INFO L276 IsEmpty]: Start isEmpty. Operand 18026 states and 76801 transitions. [2022-11-22 02:25:38,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:25:38,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:38,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:38,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:25:38,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:38,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:38,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1805552026, now seen corresponding path program 1 times [2022-11-22 02:25:38,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:38,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032370117] [2022-11-22 02:25:38,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:38,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:38,824 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 02:25:38,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:38,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032370117] [2022-11-22 02:25:38,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032370117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:38,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:38,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:38,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403957702] [2022-11-22 02:25:38,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:38,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:25:38,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:38,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:25:38,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:38,827 INFO L87 Difference]: Start difference. First operand 18026 states and 76801 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:25:39,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:39,117 INFO L93 Difference]: Finished difference Result 15552 states and 65259 transitions. [2022-11-22 02:25:39,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:25:39,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 02:25:39,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:39,209 INFO L225 Difference]: With dead ends: 15552 [2022-11-22 02:25:39,210 INFO L226 Difference]: Without dead ends: 15552 [2022-11-22 02:25:39,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:39,211 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 66 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:39,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 4 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:25:39,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15552 states. [2022-11-22 02:25:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15552 to 15552. [2022-11-22 02:25:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15552 states, 15362 states have (on average 4.248079677125374) internal successors, (65259), 15551 states have internal predecessors, (65259), 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 02:25:39,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15552 states to 15552 states and 65259 transitions. [2022-11-22 02:25:39,639 INFO L78 Accepts]: Start accepts. Automaton has 15552 states and 65259 transitions. Word has length 9 [2022-11-22 02:25:39,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:39,639 INFO L495 AbstractCegarLoop]: Abstraction has 15552 states and 65259 transitions. [2022-11-22 02:25:39,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:25:39,640 INFO L276 IsEmpty]: Start isEmpty. Operand 15552 states and 65259 transitions. [2022-11-22 02:25:39,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:25:39,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:39,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:39,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:25:39,642 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:39,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:39,642 INFO L85 PathProgramCache]: Analyzing trace with hash 145252638, now seen corresponding path program 1 times [2022-11-22 02:25:39,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:39,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388355529] [2022-11-22 02:25:39,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:39,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:39,856 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 02:25:39,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:39,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388355529] [2022-11-22 02:25:39,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388355529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:39,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:39,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:39,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137338873] [2022-11-22 02:25:39,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:39,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:25:39,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:39,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:25:39,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:39,859 INFO L87 Difference]: Start difference. First operand 15552 states and 65259 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:25:40,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:40,167 INFO L93 Difference]: Finished difference Result 10452 states and 42282 transitions. [2022-11-22 02:25:40,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:25:40,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 02:25:40,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:40,229 INFO L225 Difference]: With dead ends: 10452 [2022-11-22 02:25:40,230 INFO L226 Difference]: Without dead ends: 10428 [2022-11-22 02:25:40,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:40,231 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 106 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:40,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 3 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:25:40,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10428 states. [2022-11-22 02:25:40,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10428 to 10428. [2022-11-22 02:25:41,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10428 states, 10243 states have (on average 4.1151029971687985) internal successors, (42151), 10427 states have internal predecessors, (42151), 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 02:25:41,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10428 states to 10428 states and 42151 transitions. [2022-11-22 02:25:41,050 INFO L78 Accepts]: Start accepts. Automaton has 10428 states and 42151 transitions. Word has length 10 [2022-11-22 02:25:41,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:41,051 INFO L495 AbstractCegarLoop]: Abstraction has 10428 states and 42151 transitions. [2022-11-22 02:25:41,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:25:41,051 INFO L276 IsEmpty]: Start isEmpty. Operand 10428 states and 42151 transitions. [2022-11-22 02:25:41,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 02:25:41,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:41,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:41,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:25:41,055 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:41,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:41,056 INFO L85 PathProgramCache]: Analyzing trace with hash -821856827, now seen corresponding path program 1 times [2022-11-22 02:25:41,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:41,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218472224] [2022-11-22 02:25:41,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:41,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:41,206 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 02:25:41,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:41,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218472224] [2022-11-22 02:25:41,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218472224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:41,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:41,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:25:41,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001668439] [2022-11-22 02:25:41,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:41,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:25:41,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:41,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:25:41,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:25:41,209 INFO L87 Difference]: Start difference. First operand 10428 states and 42151 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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 02:25:41,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:41,514 INFO L93 Difference]: Finished difference Result 7536 states and 29515 transitions. [2022-11-22 02:25:41,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:25:41,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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 02:25:41,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:41,556 INFO L225 Difference]: With dead ends: 7536 [2022-11-22 02:25:41,557 INFO L226 Difference]: Without dead ends: 7536 [2022-11-22 02:25:41,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:25:41,558 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 114 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:41,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 5 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:25:41,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7536 states. [2022-11-22 02:25:41,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7536 to 7536. [2022-11-22 02:25:41,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7536 states, 7431 states have (on average 3.971874579464406) internal successors, (29515), 7535 states have internal predecessors, (29515), 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 02:25:41,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7536 states to 7536 states and 29515 transitions. [2022-11-22 02:25:41,802 INFO L78 Accepts]: Start accepts. Automaton has 7536 states and 29515 transitions. Word has length 12 [2022-11-22 02:25:41,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:41,803 INFO L495 AbstractCegarLoop]: Abstraction has 7536 states and 29515 transitions. [2022-11-22 02:25:41,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 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 02:25:41,803 INFO L276 IsEmpty]: Start isEmpty. Operand 7536 states and 29515 transitions. [2022-11-22 02:25:41,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 02:25:41,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:41,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:41,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:25:41,808 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:41,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:41,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1783854041, now seen corresponding path program 1 times [2022-11-22 02:25:41,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:41,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625182306] [2022-11-22 02:25:41,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:41,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:41,934 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 02:25:41,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:41,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625182306] [2022-11-22 02:25:41,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625182306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:41,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:41,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:41,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554470888] [2022-11-22 02:25:41,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:41,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:25:41,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:41,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:25:41,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:41,937 INFO L87 Difference]: Start difference. First operand 7536 states and 29515 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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 02:25:42,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:42,177 INFO L93 Difference]: Finished difference Result 5772 states and 23135 transitions. [2022-11-22 02:25:42,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:25:42,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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 14 [2022-11-22 02:25:42,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:42,204 INFO L225 Difference]: With dead ends: 5772 [2022-11-22 02:25:42,204 INFO L226 Difference]: Without dead ends: 5658 [2022-11-22 02:25:42,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:42,205 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 96 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:42,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 4 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:25:42,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5658 states. [2022-11-22 02:25:42,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5658 to 5658. [2022-11-22 02:25:42,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5658 states, 5563 states have (on average 4.0479956857810535) internal successors, (22519), 5657 states have internal predecessors, (22519), 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 02:25:42,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5658 states to 5658 states and 22519 transitions. [2022-11-22 02:25:42,366 INFO L78 Accepts]: Start accepts. Automaton has 5658 states and 22519 transitions. Word has length 14 [2022-11-22 02:25:42,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:42,367 INFO L495 AbstractCegarLoop]: Abstraction has 5658 states and 22519 transitions. [2022-11-22 02:25:42,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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 02:25:42,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5658 states and 22519 transitions. [2022-11-22 02:25:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 02:25:42,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:42,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:42,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:25:42,373 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:42,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:42,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1816262629, now seen corresponding path program 1 times [2022-11-22 02:25:42,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:42,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525773782] [2022-11-22 02:25:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:42,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:42,536 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 02:25:42,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:42,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525773782] [2022-11-22 02:25:42,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525773782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:42,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:42,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:25:42,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801086976] [2022-11-22 02:25:42,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:42,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:25:42,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:42,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:25:42,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:25:42,539 INFO L87 Difference]: Start difference. First operand 5658 states and 22519 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:25:42,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:42,874 INFO L93 Difference]: Finished difference Result 4268 states and 16872 transitions. [2022-11-22 02:25:42,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:25:42,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 02:25:42,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:42,893 INFO L225 Difference]: With dead ends: 4268 [2022-11-22 02:25:42,893 INFO L226 Difference]: Without dead ends: 4112 [2022-11-22 02:25:42,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:25:42,894 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 177 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:42,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 6 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:25:42,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2022-11-22 02:25:43,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 4112. [2022-11-22 02:25:43,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4112 states, 4097 states have (on average 3.951427874054186) internal successors, (16189), 4111 states have internal predecessors, (16189), 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 02:25:43,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4112 states to 4112 states and 16189 transitions. [2022-11-22 02:25:43,028 INFO L78 Accepts]: Start accepts. Automaton has 4112 states and 16189 transitions. Word has length 15 [2022-11-22 02:25:43,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:43,029 INFO L495 AbstractCegarLoop]: Abstraction has 4112 states and 16189 transitions. [2022-11-22 02:25:43,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:25:43,030 INFO L276 IsEmpty]: Start isEmpty. Operand 4112 states and 16189 transitions. [2022-11-22 02:25:43,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 02:25:43,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:43,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:43,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:25:43,050 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:43,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:43,051 INFO L85 PathProgramCache]: Analyzing trace with hash -110909021, now seen corresponding path program 1 times [2022-11-22 02:25:43,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:43,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220009589] [2022-11-22 02:25:43,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:43,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:43,265 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 02:25:43,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:43,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220009589] [2022-11-22 02:25:43,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220009589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:43,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:43,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:25:43,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514012048] [2022-11-22 02:25:43,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:43,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:25:43,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:43,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:25:43,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:25:43,267 INFO L87 Difference]: Start difference. First operand 4112 states and 16189 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:25:43,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:43,528 INFO L93 Difference]: Finished difference Result 3816 states and 15383 transitions. [2022-11-22 02:25:43,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:25:43,529 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-22 02:25:43,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:43,537 INFO L225 Difference]: With dead ends: 3816 [2022-11-22 02:25:43,537 INFO L226 Difference]: Without dead ends: 2892 [2022-11-22 02:25:43,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:25:43,538 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 104 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:43,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 5 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:25:43,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2022-11-22 02:25:43,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 2892. [2022-11-22 02:25:43,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2887 states have (on average 3.899896085902321) internal successors, (11259), 2891 states have internal predecessors, (11259), 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 02:25:43,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 11259 transitions. [2022-11-22 02:25:43,688 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 11259 transitions. Word has length 18 [2022-11-22 02:25:43,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:43,688 INFO L495 AbstractCegarLoop]: Abstraction has 2892 states and 11259 transitions. [2022-11-22 02:25:43,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:25:43,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 11259 transitions. [2022-11-22 02:25:43,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 02:25:43,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:43,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:43,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:25:43,700 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-11-22 02:25:43,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:43,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1099508667, now seen corresponding path program 1 times [2022-11-22 02:25:43,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:43,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103473745] [2022-11-22 02:25:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:43,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:44,004 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 02:25:44,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:44,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103473745] [2022-11-22 02:25:44,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103473745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:44,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:44,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:25:44,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713473342] [2022-11-22 02:25:44,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:44,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:25:44,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:44,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:25:44,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:25:44,007 INFO L87 Difference]: Start difference. First operand 2892 states and 11259 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:25:44,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:44,222 INFO L93 Difference]: Finished difference Result 2862 states and 11204 transitions. [2022-11-22 02:25:44,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:25:44,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-22 02:25:44,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:44,223 INFO L225 Difference]: With dead ends: 2862 [2022-11-22 02:25:44,223 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:25:44,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:25:44,224 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 152 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:44,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 5 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:25:44,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:25:44,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:25:44,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:25:44,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:25:44,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-22 02:25:44,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:44,225 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:25:44,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:25:44,226 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:25:44,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:25:44,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 45 remaining) [2022-11-22 02:25:44,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 45 remaining) [2022-11-22 02:25:44,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 45 remaining) [2022-11-22 02:25:44,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 45 remaining) [2022-11-22 02:25:44,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 45 remaining) [2022-11-22 02:25:44,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 45 remaining) [2022-11-22 02:25:44,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 45 remaining) [2022-11-22 02:25:44,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 45 remaining) [2022-11-22 02:25:44,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 45 remaining) [2022-11-22 02:25:44,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 45 remaining) [2022-11-22 02:25:44,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 45 remaining) [2022-11-22 02:25:44,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 45 remaining) [2022-11-22 02:25:44,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 45 remaining) [2022-11-22 02:25:44,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 45 remaining) [2022-11-22 02:25:44,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 45 remaining) [2022-11-22 02:25:44,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 45 remaining) [2022-11-22 02:25:44,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 45 remaining) [2022-11-22 02:25:44,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 45 remaining) [2022-11-22 02:25:44,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 45 remaining) [2022-11-22 02:25:44,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 45 remaining) [2022-11-22 02:25:44,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 45 remaining) [2022-11-22 02:25:44,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 45 remaining) [2022-11-22 02:25:44,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 45 remaining) [2022-11-22 02:25:44,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 45 remaining) [2022-11-22 02:25:44,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 45 remaining) [2022-11-22 02:25:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 45 remaining) [2022-11-22 02:25:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 45 remaining) [2022-11-22 02:25:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 45 remaining) [2022-11-22 02:25:44,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 45 remaining) [2022-11-22 02:25:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 45 remaining) [2022-11-22 02:25:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 45 remaining) [2022-11-22 02:25:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 45 remaining) [2022-11-22 02:25:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 45 remaining) [2022-11-22 02:25:44,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 45 remaining) [2022-11-22 02:25:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 45 remaining) [2022-11-22 02:25:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 45 remaining) [2022-11-22 02:25:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 45 remaining) [2022-11-22 02:25:44,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 45 remaining) [2022-11-22 02:25:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 45 remaining) [2022-11-22 02:25:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 45 remaining) [2022-11-22 02:25:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 45 remaining) [2022-11-22 02:25:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 45 remaining) [2022-11-22 02:25:44,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 45 remaining) [2022-11-22 02:25:44,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 45 remaining) [2022-11-22 02:25:44,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 45 remaining) [2022-11-22 02:25:44,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:25:44,241 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:44,247 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:25:44,247 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:25:44,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:25:44 BasicIcfg [2022-11-22 02:25:44,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:25:44,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:25:44,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:25:44,251 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:25:44,252 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:24:52" (3/4) ... [2022-11-22 02:25:44,255 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:25:44,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-22 02:25:44,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-22 02:25:44,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-22 02:25:44,262 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-11-22 02:25:44,262 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread5 [2022-11-22 02:25:44,267 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-22 02:25:44,268 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 02:25:44,268 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 02:25:44,268 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:25:44,309 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:25:44,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:25:44,310 INFO L158 Benchmark]: Toolchain (without parser) took 53695.89ms. Allocated memory was 159.4MB in the beginning and 13.9GB in the end (delta: 13.7GB). Free memory was 128.1MB in the beginning and 11.4GB in the end (delta: -11.3GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2022-11-22 02:25:44,310 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 93.4MB in the beginning and 93.3MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:25:44,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.67ms. Allocated memory is still 159.4MB. Free memory was 128.1MB in the beginning and 122.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 02:25:44,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.68ms. Allocated memory is still 159.4MB. Free memory was 122.8MB in the beginning and 120.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:25:44,311 INFO L158 Benchmark]: Boogie Preprocessor took 47.65ms. Allocated memory is still 159.4MB. Free memory was 120.7MB in the beginning and 118.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:25:44,312 INFO L158 Benchmark]: RCFGBuilder took 954.37ms. Allocated memory is still 159.4MB. Free memory was 118.6MB in the beginning and 85.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-22 02:25:44,312 INFO L158 Benchmark]: TraceAbstraction took 52220.27ms. Allocated memory was 159.4MB in the beginning and 13.9GB in the end (delta: 13.7GB). Free memory was 84.2MB in the beginning and 11.4GB in the end (delta: -11.3GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2022-11-22 02:25:44,313 INFO L158 Benchmark]: Witness Printer took 58.47ms. Allocated memory is still 13.9GB. Free memory was 11.4GB in the beginning and 11.4GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:25:44,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 93.4MB in the beginning and 93.3MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.67ms. Allocated memory is still 159.4MB. Free memory was 128.1MB in the beginning and 122.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.68ms. Allocated memory is still 159.4MB. Free memory was 122.8MB in the beginning and 120.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.65ms. Allocated memory is still 159.4MB. Free memory was 120.7MB in the beginning and 118.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 954.37ms. Allocated memory is still 159.4MB. Free memory was 118.6MB in the beginning and 85.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 52220.27ms. Allocated memory was 159.4MB in the beginning and 13.9GB in the end (delta: 13.7GB). Free memory was 84.2MB in the beginning and 11.4GB in the end (delta: -11.3GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Witness Printer took 58.47ms. Allocated memory is still 13.9GB. Free memory was 11.4GB in the beginning and 11.4GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.9s, 198 PlacesBefore, 78 PlacesAfterwards, 184 TransitionsBefore, 62 TransitionsAfterwards, 4234 CoEnabledTransitionPairs, 7 FixpointIterations, 85 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 146 TotalNumberOfCompositions, 18369 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6748, independent: 6426, independent conditional: 0, independent unconditional: 6426, dependent: 322, dependent conditional: 0, dependent unconditional: 322, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2718, independent: 2625, independent conditional: 0, independent unconditional: 2625, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2718, independent: 2485, independent conditional: 0, independent unconditional: 2485, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 233, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 791, independent: 436, independent conditional: 0, independent unconditional: 436, dependent: 355, dependent conditional: 0, dependent unconditional: 355, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6748, independent: 3801, independent conditional: 0, independent unconditional: 3801, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 2718, unknown conditional: 0, unknown unconditional: 2718] , Statistics on independence cache: Total cache size (in pairs): 504, Positive cache size: 455, Positive conditional cache size: 0, Positive unconditional cache size: 455, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 123]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 244 locations, 45 error locations. Started 1 CEGAR loops. OverallTime: 52.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 18.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1086 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1086 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 196 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1798 IncrementalHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 196 mSolverCounterUnsat, 12 mSDtfsCounter, 1798 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93610occurred in iteration=0, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 18.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 24800 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 412 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-22 02:25:44,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cc76ec-99fa-44d9-99d7-75a933071fe6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE