./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 449d00de99d52e6ea9aa539e57f46adfc8dfbb78972c0dc655f91843e743f43f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:17:18,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:17:18,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:17:18,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:17:18,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:17:18,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:17:18,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:17:18,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:17:18,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:17:18,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:17:18,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:17:18,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:17:18,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:17:18,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:17:18,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:17:18,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:17:18,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:17:18,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:17:18,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:17:18,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:17:18,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:17:18,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:17:18,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:17:18,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:17:18,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:17:18,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:17:18,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:17:18,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:17:18,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:17:18,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:17:18,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:17:18,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:17:18,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:17:18,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:17:18,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:17:18,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:17:18,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:17:18,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:17:18,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:17:19,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:17:19,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:17:19,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 14:17:19,037 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:17:19,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:17:19,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:17:19,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:17:19,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:17:19,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:17:19,044 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:17:19,044 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:17:19,045 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:17:19,045 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:17:19,046 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:17:19,046 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:17:19,047 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:17:19,047 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:17:19,047 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:17:19,048 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:17:19,048 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:17:19,048 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:17:19,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:17:19,050 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:17:19,050 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:17:19,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:17:19,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:17:19,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:17:19,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:17:19,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:17:19,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:17:19,052 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:17:19,053 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:17:19,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:17:19,053 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:17:19,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:17:19,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:17:19,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:17:19,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:17:19,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:17:19,059 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:17:19,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:17:19,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:17:19,060 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:17:19,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:17:19,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:17:19,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:17:19,061 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_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 449d00de99d52e6ea9aa539e57f46adfc8dfbb78972c0dc655f91843e743f43f [2022-11-23 14:17:19,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:17:19,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:17:19,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:17:19,421 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:17:19,421 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:17:19,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i [2022-11-23 14:17:22,640 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:17:22,986 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:17:22,989 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i [2022-11-23 14:17:23,006 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/data/95c391f6e/c98519cdb4a04a969a1d1635c8c35060/FLAG69a5e6d71 [2022-11-23 14:17:23,026 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/data/95c391f6e/c98519cdb4a04a969a1d1635c8c35060 [2022-11-23 14:17:23,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:17:23,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:17:23,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:17:23,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:17:23,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:17:23,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4e2807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23, skipping insertion in model container [2022-11-23 14:17:23,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:17:23,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:17:23,353 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_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i[995,1008] [2022-11-23 14:17:23,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:17:23,692 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:17:23,707 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_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i[995,1008] [2022-11-23 14:17:23,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:17:23,788 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:17:23,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23 WrapperNode [2022-11-23 14:17:23,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:17:23,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:17:23,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:17:23,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:17:23,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,837 INFO L138 Inliner]: procedures = 176, calls = 67, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 136 [2022-11-23 14:17:23,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:17:23,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:17:23,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:17:23,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:17:23,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,893 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:17:23,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:17:23,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:17:23,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:17:23,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (1/1) ... [2022-11-23 14:17:23,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:17:23,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:17:23,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:17:23,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:17:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:17:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:17:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 14:17:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:17:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:17:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:17:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 14:17:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 14:17:23,990 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 14:17:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 14:17:23,990 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 14:17:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 14:17:23,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:17:23,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 14:17:23,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:17:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:17:23,993 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:17:24,157 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:17:24,159 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:17:24,728 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:17:25,049 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:17:25,049 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:17:25,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:17:25 BoogieIcfgContainer [2022-11-23 14:17:25,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:17:25,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:17:25,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:17:25,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:17:25,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:17:23" (1/3) ... [2022-11-23 14:17:25,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b42e32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:17:25, skipping insertion in model container [2022-11-23 14:17:25,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:17:23" (2/3) ... [2022-11-23 14:17:25,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b42e32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:17:25, skipping insertion in model container [2022-11-23 14:17:25,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:17:25" (3/3) ... [2022-11-23 14:17:25,064 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_power.oepc.i [2022-11-23 14:17:25,074 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:17:25,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:17:25,085 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 14:17:25,085 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:17:25,204 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:17:25,249 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:17:25,273 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 135 transitions, 285 flow [2022-11-23 14:17:25,279 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 135 transitions, 285 flow [2022-11-23 14:17:25,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 135 transitions, 285 flow [2022-11-23 14:17:25,376 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2022-11-23 14:17:25,376 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 14:17:25,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2022-11-23 14:17:25,391 INFO L119 LiptonReduction]: Number of co-enabled transitions 2240 [2022-11-23 14:17:37,400 INFO L134 LiptonReduction]: Checked pairs total: 6985 [2022-11-23 14:17:37,402 INFO L136 LiptonReduction]: Total number of compositions: 122 [2022-11-23 14:17:37,411 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 28 transitions, 71 flow [2022-11-23 14:17:37,535 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 910 states, 884 states have (on average 3.504524886877828) internal successors, (3098), 909 states have internal predecessors, (3098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:37,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:17:37,569 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;@28357246, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:17:37,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-23 14:17:37,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 910 states, 884 states have (on average 3.504524886877828) internal successors, (3098), 909 states have internal predecessors, (3098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:37,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:17:37,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:17:37,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:17:37,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 14:17:37,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:17:37,584 INFO L85 PathProgramCache]: Analyzing trace with hash 22936635, now seen corresponding path program 1 times [2022-11-23 14:17:37,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:17:37,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929067978] [2022-11-23 14:17:37,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:17:37,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:17:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:17:38,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:17:38,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:17:38,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929067978] [2022-11-23 14:17:38,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929067978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:17:38,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:17:38,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:17:38,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331879282] [2022-11-23 14:17:38,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:17:38,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:17:38,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:17:38,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:17:38,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:17:38,041 INFO L87 Difference]: Start difference. First operand has 910 states, 884 states have (on average 3.504524886877828) internal successors, (3098), 909 states have internal predecessors, (3098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:38,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:17:38,223 INFO L93 Difference]: Finished difference Result 494 states and 1357 transitions. [2022-11-23 14:17:38,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:17:38,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-23 14:17:38,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:17:38,255 INFO L225 Difference]: With dead ends: 494 [2022-11-23 14:17:38,258 INFO L226 Difference]: Without dead ends: 494 [2022-11-23 14:17:38,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:17:38,267 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:17:38,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:17:38,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-11-23 14:17:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2022-11-23 14:17:38,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 476 states have (on average 2.850840336134454) internal successors, (1357), 493 states have internal predecessors, (1357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:38,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 1357 transitions. [2022-11-23 14:17:38,374 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 1357 transitions. Word has length 4 [2022-11-23 14:17:38,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:17:38,375 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 1357 transitions. [2022-11-23 14:17:38,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:38,376 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 1357 transitions. [2022-11-23 14:17:38,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:17:38,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:17:38,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:17:38,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:17:38,377 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 14:17:38,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:17:38,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1002302666, now seen corresponding path program 1 times [2022-11-23 14:17:38,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:17:38,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930903498] [2022-11-23 14:17:38,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:17:38,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:17:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:17:38,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:17:38,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:17:38,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930903498] [2022-11-23 14:17:38,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930903498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:17:38,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:17:38,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:17:38,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30071746] [2022-11-23 14:17:38,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:17:38,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:17:38,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:17:38,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:17:38,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:17:38,509 INFO L87 Difference]: Start difference. First operand 494 states and 1357 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:38,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:17:38,627 INFO L93 Difference]: Finished difference Result 370 states and 1031 transitions. [2022-11-23 14:17:38,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:17:38,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-23 14:17:38,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:17:38,633 INFO L225 Difference]: With dead ends: 370 [2022-11-23 14:17:38,634 INFO L226 Difference]: Without dead ends: 370 [2022-11-23 14:17:38,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:17:38,637 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:17:38,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 8 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:17:38,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-23 14:17:38,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-11-23 14:17:38,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 364 states have (on average 2.8324175824175826) internal successors, (1031), 369 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:38,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1031 transitions. [2022-11-23 14:17:38,681 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1031 transitions. Word has length 8 [2022-11-23 14:17:38,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:17:38,682 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 1031 transitions. [2022-11-23 14:17:38,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:38,684 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1031 transitions. [2022-11-23 14:17:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:17:38,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:17:38,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:17:38,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:17:38,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 14:17:38,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:17:38,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1006610194, now seen corresponding path program 1 times [2022-11-23 14:17:38,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:17:38,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428308804] [2022-11-23 14:17:38,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:17:38,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:17:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:17:38,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:17:38,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:17:38,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428308804] [2022-11-23 14:17:38,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428308804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:17:38,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:17:38,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:17:38,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493977889] [2022-11-23 14:17:38,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:17:38,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:17:38,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:17:38,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:17:38,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:17:38,902 INFO L87 Difference]: Start difference. First operand 370 states and 1031 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:39,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:17:39,083 INFO L93 Difference]: Finished difference Result 282 states and 792 transitions. [2022-11-23 14:17:39,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:17:39,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 14:17:39,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:17:39,088 INFO L225 Difference]: With dead ends: 282 [2022-11-23 14:17:39,089 INFO L226 Difference]: Without dead ends: 282 [2022-11-23 14:17:39,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:17:39,095 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 34 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:17:39,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 6 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:17:39,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-11-23 14:17:39,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-11-23 14:17:39,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 279 states have (on average 2.838709677419355) internal successors, (792), 281 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:39,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 792 transitions. [2022-11-23 14:17:39,136 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 792 transitions. Word has length 9 [2022-11-23 14:17:39,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:17:39,138 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 792 transitions. [2022-11-23 14:17:39,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:39,138 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 792 transitions. [2022-11-23 14:17:39,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 14:17:39,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:17:39,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:17:39,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:17:39,149 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-23 14:17:39,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:17:39,150 INFO L85 PathProgramCache]: Analyzing trace with hash -819815040, now seen corresponding path program 1 times [2022-11-23 14:17:39,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:17:39,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964150473] [2022-11-23 14:17:39,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:17:39,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:17:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:17:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:17:39,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:17:39,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964150473] [2022-11-23 14:17:39,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964150473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:17:39,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:17:39,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:17:39,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616459960] [2022-11-23 14:17:39,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:17:39,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:17:39,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:17:39,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:17:39,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:17:39,338 INFO L87 Difference]: Start difference. First operand 282 states and 792 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-23 14:17:39,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:17:39,470 INFO L93 Difference]: Finished difference Result 270 states and 771 transitions. [2022-11-23 14:17:39,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:17:39,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 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 [2022-11-23 14:17:39,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:17:39,471 INFO L225 Difference]: With dead ends: 270 [2022-11-23 14:17:39,471 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:17:39,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:17:39,473 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 41 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:17:39,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 6 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:17:39,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:17:39,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:17:39,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:17:39,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:17:39,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-11-23 14:17:39,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:17:39,475 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:17:39,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-23 14:17:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:17:39,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:17:39,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-23 14:17:39,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-23 14:17:39,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-23 14:17:39,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-23 14:17:39,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-23 14:17:39,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-23 14:17:39,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-23 14:17:39,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-23 14:17:39,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-23 14:17:39,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-23 14:17:39,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-23 14:17:39,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-23 14:17:39,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-23 14:17:39,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-23 14:17:39,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-23 14:17:39,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:17:39,501 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 14:17:39,506 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 14:17:39,507 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:17:39,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:17:39 BasicIcfg [2022-11-23 14:17:39,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:17:39,512 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:17:39,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:17:39,513 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:17:39,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:17:25" (3/4) ... [2022-11-23 14:17:39,516 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:17:39,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-23 14:17:39,523 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-23 14:17:39,523 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-23 14:17:39,533 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2022-11-23 14:17:39,534 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-23 14:17:39,534 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 14:17:39,535 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:17:39,588 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:17:39,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:17:39,589 INFO L158 Benchmark]: Toolchain (without parser) took 16556.27ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 87.0MB in the beginning and 111.4MB in the end (delta: -24.4MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2022-11-23 14:17:39,589 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 100.7MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:17:39,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 752.17ms. Allocated memory is still 130.0MB. Free memory was 86.8MB in the beginning and 63.6MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 14:17:39,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.77ms. Allocated memory is still 130.0MB. Free memory was 63.4MB in the beginning and 61.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:17:39,591 INFO L158 Benchmark]: Boogie Preprocessor took 61.07ms. Allocated memory is still 130.0MB. Free memory was 61.2MB in the beginning and 59.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:17:39,591 INFO L158 Benchmark]: RCFGBuilder took 1151.91ms. Allocated memory is still 130.0MB. Free memory was 58.8MB in the beginning and 48.9MB in the end (delta: 9.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-11-23 14:17:39,592 INFO L158 Benchmark]: TraceAbstraction took 14455.60ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 48.4MB in the beginning and 115.6MB in the end (delta: -67.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:17:39,592 INFO L158 Benchmark]: Witness Printer took 76.20ms. Allocated memory is still 197.1MB. Free memory was 115.6MB in the beginning and 111.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:17:39,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77ms. Allocated memory is still 100.7MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 752.17ms. Allocated memory is still 130.0MB. Free memory was 86.8MB in the beginning and 63.6MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.77ms. Allocated memory is still 130.0MB. Free memory was 63.4MB in the beginning and 61.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.07ms. Allocated memory is still 130.0MB. Free memory was 61.2MB in the beginning and 59.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1151.91ms. Allocated memory is still 130.0MB. Free memory was 58.8MB in the beginning and 48.9MB in the end (delta: 9.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 14455.60ms. Allocated memory was 130.0MB in the beginning and 197.1MB in the end (delta: 67.1MB). Free memory was 48.4MB in the beginning and 115.6MB in the end (delta: -67.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 76.20ms. Allocated memory is still 197.1MB. Free memory was 115.6MB in the beginning and 111.4MB in the end (delta: 4.2MB). 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: 12.1s, 143 PlacesBefore, 37 PlacesAfterwards, 135 TransitionsBefore, 28 TransitionsAfterwards, 2240 CoEnabledTransitionPairs, 8 FixpointIterations, 60 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 122 TotalNumberOfCompositions, 6985 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2963, independent: 2704, independent conditional: 0, independent unconditional: 2704, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1647, independent: 1586, independent conditional: 0, independent unconditional: 1586, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1647, independent: 1550, independent conditional: 0, independent unconditional: 1550, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 97, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 987, independent: 113, independent conditional: 0, independent unconditional: 113, dependent: 873, dependent conditional: 0, dependent unconditional: 873, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2963, independent: 1118, independent conditional: 0, independent unconditional: 1118, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 1647, unknown conditional: 0, unknown unconditional: 1647] , Statistics on independence cache: Total cache size (in pairs): 157, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, 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: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 164 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 14.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 10 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=910occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 14:17:39,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dbb4f32-7ee1-4672-aa53-d838c61cb51e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE