./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57c8b47d74ada5c94291d16aafebbb644062493fff61510a323122bcd88ba5b1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:28:54,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:28:54,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:28:54,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:28:54,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:28:54,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:28:54,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:28:54,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:28:54,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:28:54,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:28:54,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:28:54,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:28:54,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:28:54,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:28:54,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:28:54,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:28:54,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:28:54,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:28:54,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:28:54,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:28:54,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:28:54,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:28:54,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:28:54,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:28:54,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:28:54,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:28:54,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:28:54,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:28:54,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:28:54,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:28:54,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:28:54,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:28:54,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:28:54,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:28:54,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:28:54,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:28:54,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:28:54,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:28:54,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:28:54,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:28:54,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:28:54,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:28:54,939 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:28:54,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:28:54,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:28:54,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:28:54,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:28:54,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:28:54,942 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:28:54,942 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:28:54,943 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:28:54,943 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:28:54,943 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:28:54,944 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:28:54,944 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:28:54,944 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:28:54,945 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:28:54,945 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:28:54,946 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:28:54,946 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:28:54,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:28:54,947 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:28:54,948 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:28:54,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:28:54,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:28:54,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:28:54,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:28:54,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:28:54,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:28:54,950 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:28:54,950 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:28:54,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:28:54,951 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:28:54,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:28:54,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:28:54,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:28:54,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:28:54,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:28:54,953 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:28:54,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:28:54,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:28:54,954 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:28:54,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:28:54,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:28:54,955 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:28:54,955 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_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57c8b47d74ada5c94291d16aafebbb644062493fff61510a323122bcd88ba5b1 [2022-11-19 07:28:55,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:28:55,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:28:55,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:28:55,364 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:28:55,365 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:28:55,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/safe019_power.opt.i [2022-11-19 07:28:55,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/data/c241f10de/2ca230eb8b644307aaf2a6057d74fb51/FLAG9741e61cc [2022-11-19 07:28:56,109 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:28:56,110 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/sv-benchmarks/c/pthread-wmm/safe019_power.opt.i [2022-11-19 07:28:56,129 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/data/c241f10de/2ca230eb8b644307aaf2a6057d74fb51/FLAG9741e61cc [2022-11-19 07:28:56,366 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/data/c241f10de/2ca230eb8b644307aaf2a6057d74fb51 [2022-11-19 07:28:56,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:28:56,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:28:56,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:28:56,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:28:56,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:28:56,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:28:56" (1/1) ... [2022-11-19 07:28:56,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d3e44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:56, skipping insertion in model container [2022-11-19 07:28:56,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:28:56" (1/1) ... [2022-11-19 07:28:56,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:28:56,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:28:56,774 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/sv-benchmarks/c/pthread-wmm/safe019_power.opt.i[994,1007] [2022-11-19 07:28:57,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:28:57,157 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:28:57,176 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/sv-benchmarks/c/pthread-wmm/safe019_power.opt.i[994,1007] [2022-11-19 07:28:57,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:28:57,339 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:28:57,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57 WrapperNode [2022-11-19 07:28:57,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:28:57,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:28:57,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:28:57,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:28:57,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (1/1) ... [2022-11-19 07:28:57,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (1/1) ... [2022-11-19 07:28:57,425 INFO L138 Inliner]: procedures = 177, calls = 88, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 195 [2022-11-19 07:28:57,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:28:57,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:28:57,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:28:57,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:28:57,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (1/1) ... [2022-11-19 07:28:57,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (1/1) ... [2022-11-19 07:28:57,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (1/1) ... [2022-11-19 07:28:57,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (1/1) ... [2022-11-19 07:28:57,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (1/1) ... [2022-11-19 07:28:57,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (1/1) ... [2022-11-19 07:28:57,463 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (1/1) ... [2022-11-19 07:28:57,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (1/1) ... [2022-11-19 07:28:57,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:28:57,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:28:57,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:28:57,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:28:57,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (1/1) ... [2022-11-19 07:28:57,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:28:57,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:28:57,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:28:57,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:28:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:28:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:28:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 07:28:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:28:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:28:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:28:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 07:28:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 07:28:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 07:28:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 07:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-19 07:28:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-19 07:28:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-19 07:28:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-19 07:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 07:28:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:28:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:28:57,591 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 07:28:57,923 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:28:57,925 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:28:58,703 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:28:59,403 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:28:59,404 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:28:59,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:28:59 BoogieIcfgContainer [2022-11-19 07:28:59,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:28:59,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:28:59,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:28:59,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:28:59,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:28:56" (1/3) ... [2022-11-19 07:28:59,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38595768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:28:59, skipping insertion in model container [2022-11-19 07:28:59,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:57" (2/3) ... [2022-11-19 07:28:59,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38595768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:28:59, skipping insertion in model container [2022-11-19 07:28:59,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:28:59" (3/3) ... [2022-11-19 07:28:59,424 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_power.opt.i [2022-11-19 07:28:59,435 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 07:28:59,450 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:28:59,451 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-19 07:28:59,451 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:28:59,607 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 07:28:59,668 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:28:59,688 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 158 transitions, 336 flow [2022-11-19 07:28:59,693 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 158 transitions, 336 flow [2022-11-19 07:28:59,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 158 transitions, 336 flow [2022-11-19 07:28:59,833 INFO L130 PetriNetUnfolder]: 2/154 cut-off events. [2022-11-19 07:28:59,833 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 07:28:59,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 154 events. 2/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-11-19 07:28:59,850 INFO L119 LiptonReduction]: Number of co-enabled transitions 3746 [2022-11-19 07:29:19,479 INFO L134 LiptonReduction]: Checked pairs total: 13232 [2022-11-19 07:29:19,480 INFO L136 LiptonReduction]: Total number of compositions: 136 [2022-11-19 07:29:19,490 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 37 transitions, 94 flow [2022-11-19 07:29:19,915 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6634 states, 6554 states have (on average 4.3216356423558135) internal successors, (28324), 6633 states have internal predecessors, (28324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:19,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:29:19,954 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;@4346b0c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:29:19,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-19 07:29:19,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 6634 states, 6554 states have (on average 4.3216356423558135) internal successors, (28324), 6633 states have internal predecessors, (28324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:20,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:29:20,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:20,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:29:20,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 07:29:20,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:20,022 INFO L85 PathProgramCache]: Analyzing trace with hash 31262465, now seen corresponding path program 1 times [2022-11-19 07:29:20,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:20,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127599719] [2022-11-19 07:29:20,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:20,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:29:20,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:20,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127599719] [2022-11-19 07:29:20,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127599719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:20,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:20,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:29:20,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595057760] [2022-11-19 07:29:20,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:20,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:29:20,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:20,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:29:20,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:29:20,628 INFO L87 Difference]: Start difference. First operand has 6634 states, 6554 states have (on average 4.3216356423558135) internal successors, (28324), 6633 states have internal predecessors, (28324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:21,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:21,030 INFO L93 Difference]: Finished difference Result 3802 states and 13599 transitions. [2022-11-19 07:29:21,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:29:21,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 07:29:21,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:21,110 INFO L225 Difference]: With dead ends: 3802 [2022-11-19 07:29:21,110 INFO L226 Difference]: Without dead ends: 3802 [2022-11-19 07:29:21,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:29:21,116 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 17 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:21,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 6 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:29:21,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2022-11-19 07:29:21,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3802. [2022-11-19 07:29:21,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3802 states, 3738 states have (on average 3.6380417335473516) internal successors, (13599), 3801 states have internal predecessors, (13599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3802 states to 3802 states and 13599 transitions. [2022-11-19 07:29:21,447 INFO L78 Accepts]: Start accepts. Automaton has 3802 states and 13599 transitions. Word has length 4 [2022-11-19 07:29:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:21,448 INFO L495 AbstractCegarLoop]: Abstraction has 3802 states and 13599 transitions. [2022-11-19 07:29:21,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:21,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3802 states and 13599 transitions. [2022-11-19 07:29:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:29:21,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:21,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:29:21,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:29:21,457 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 07:29:21,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:21,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1597594092, now seen corresponding path program 1 times [2022-11-19 07:29:21,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:21,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394412549] [2022-11-19 07:29:21,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:21,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:21,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:29:21,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:21,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394412549] [2022-11-19 07:29:21,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394412549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:21,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:21,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:29:21,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081074220] [2022-11-19 07:29:21,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:21,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:29:21,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:21,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:29:21,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:29:21,692 INFO L87 Difference]: Start difference. First operand 3802 states and 13599 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:22,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:22,019 INFO L93 Difference]: Finished difference Result 2406 states and 8685 transitions. [2022-11-19 07:29:22,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:29:22,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 07:29:22,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:22,045 INFO L225 Difference]: With dead ends: 2406 [2022-11-19 07:29:22,045 INFO L226 Difference]: Without dead ends: 2406 [2022-11-19 07:29:22,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:29:22,047 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 35 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:22,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 4 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:29:22,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-11-19 07:29:22,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2406. [2022-11-19 07:29:22,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 2392 states have (on average 3.6308528428093645) internal successors, (8685), 2405 states have internal predecessors, (8685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:22,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 8685 transitions. [2022-11-19 07:29:22,181 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 8685 transitions. Word has length 9 [2022-11-19 07:29:22,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:22,182 INFO L495 AbstractCegarLoop]: Abstraction has 2406 states and 8685 transitions. [2022-11-19 07:29:22,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:22,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 8685 transitions. [2022-11-19 07:29:22,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:29:22,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:22,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:29:22,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:29:22,189 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 07:29:22,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:22,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2014192084, now seen corresponding path program 1 times [2022-11-19 07:29:22,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:22,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912889078] [2022-11-19 07:29:22,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:22,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:22,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:29:22,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:22,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912889078] [2022-11-19 07:29:22,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912889078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:22,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:22,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:29:22,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226088783] [2022-11-19 07:29:22,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:22,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:29:22,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:22,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:29:22,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:29:22,457 INFO L87 Difference]: Start difference. First operand 2406 states and 8685 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:22,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:22,693 INFO L93 Difference]: Finished difference Result 1680 states and 6004 transitions. [2022-11-19 07:29:22,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:29:22,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 07:29:22,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:22,709 INFO L225 Difference]: With dead ends: 1680 [2022-11-19 07:29:22,711 INFO L226 Difference]: Without dead ends: 1680 [2022-11-19 07:29:22,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:29:22,716 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 47 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:22,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 7 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:29:22,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2022-11-19 07:29:22,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1680. [2022-11-19 07:29:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1670 states have (on average 3.5952095808383233) internal successors, (6004), 1679 states have internal predecessors, (6004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:22,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 6004 transitions. [2022-11-19 07:29:22,822 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 6004 transitions. Word has length 10 [2022-11-19 07:29:22,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:22,823 INFO L495 AbstractCegarLoop]: Abstraction has 1680 states and 6004 transitions. [2022-11-19 07:29:22,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:22,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 6004 transitions. [2022-11-19 07:29:22,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:29:22,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:22,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:29:22,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:29:22,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 07:29:22,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash -22755470, now seen corresponding path program 1 times [2022-11-19 07:29:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:22,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945613382] [2022-11-19 07:29:22,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:22,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:23,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:29:23,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:23,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945613382] [2022-11-19 07:29:23,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945613382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:23,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:23,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:29:23,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302596904] [2022-11-19 07:29:23,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:23,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:29:23,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:23,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:29:23,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:29:23,135 INFO L87 Difference]: Start difference. First operand 1680 states and 6004 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:23,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:23,412 INFO L93 Difference]: Finished difference Result 1494 states and 5497 transitions. [2022-11-19 07:29:23,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:29:23,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-19 07:29:23,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:23,425 INFO L225 Difference]: With dead ends: 1494 [2022-11-19 07:29:23,425 INFO L226 Difference]: Without dead ends: 1494 [2022-11-19 07:29:23,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:29:23,428 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 85 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:23,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 8 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:29:23,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2022-11-19 07:29:23,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1494. [2022-11-19 07:29:23,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1490 states have (on average 3.689261744966443) internal successors, (5497), 1493 states have internal predecessors, (5497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:23,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5497 transitions. [2022-11-19 07:29:23,527 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5497 transitions. Word has length 16 [2022-11-19 07:29:23,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:23,529 INFO L495 AbstractCegarLoop]: Abstraction has 1494 states and 5497 transitions. [2022-11-19 07:29:23,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:23,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5497 transitions. [2022-11-19 07:29:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 07:29:23,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:23,535 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] [2022-11-19 07:29:23,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:29:23,536 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-19 07:29:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:23,537 INFO L85 PathProgramCache]: Analyzing trace with hash -819760097, now seen corresponding path program 1 times [2022-11-19 07:29:23,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:23,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119365540] [2022-11-19 07:29:23,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:23,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:29:23,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:23,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119365540] [2022-11-19 07:29:23,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119365540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:23,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:23,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:29:23,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971355456] [2022-11-19 07:29:23,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:23,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:29:23,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:23,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:29:23,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:29:23,784 INFO L87 Difference]: Start difference. First operand 1494 states and 5497 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:24,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:24,047 INFO L93 Difference]: Finished difference Result 1478 states and 5469 transitions. [2022-11-19 07:29:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:29:24,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2022-11-19 07:29:24,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:24,051 INFO L225 Difference]: With dead ends: 1478 [2022-11-19 07:29:24,051 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:29:24,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:29:24,052 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 75 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:24,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 4 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:29:24,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:29:24,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:29:24,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:24,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:29:24,054 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-11-19 07:29:24,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:24,054 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:29:24,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:24,054 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:29:24,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:29:24,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-19 07:29:24,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-19 07:29:24,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-19 07:29:24,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-19 07:29:24,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-19 07:29:24,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-19 07:29:24,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-19 07:29:24,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-19 07:29:24,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-19 07:29:24,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-19 07:29:24,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-19 07:29:24,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-19 07:29:24,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-19 07:29:24,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-19 07:29:24,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-19 07:29:24,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-19 07:29:24,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-19 07:29:24,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-19 07:29:24,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-19 07:29:24,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-19 07:29:24,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:29:24,068 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-19 07:29:24,074 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 07:29:24,074 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:29:24,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:29:24 BasicIcfg [2022-11-19 07:29:24,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:29:24,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:29:24,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:29:24,078 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:29:24,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:28:59" (3/4) ... [2022-11-19 07:29:24,082 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:29:24,088 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-19 07:29:24,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-19 07:29:24,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-19 07:29:24,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-19 07:29:24,097 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2022-11-19 07:29:24,098 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-19 07:29:24,098 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 07:29:24,098 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:29:24,168 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:29:24,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:29:24,169 INFO L158 Benchmark]: Toolchain (without parser) took 27794.26ms. Allocated memory was 113.2MB in the beginning and 226.5MB in the end (delta: 113.2MB). Free memory was 74.5MB in the beginning and 76.2MB in the end (delta: -1.6MB). Peak memory consumption was 111.0MB. Max. memory is 16.1GB. [2022-11-19 07:29:24,169 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory was 92.5MB in the beginning and 92.5MB in the end (delta: 52.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:29:24,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 961.95ms. Allocated memory is still 113.2MB. Free memory was 74.3MB in the beginning and 74.0MB in the end (delta: 323.8kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:29:24,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.92ms. Allocated memory is still 113.2MB. Free memory was 74.0MB in the beginning and 71.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:29:24,170 INFO L158 Benchmark]: Boogie Preprocessor took 44.42ms. Allocated memory is still 113.2MB. Free memory was 71.2MB in the beginning and 68.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:29:24,170 INFO L158 Benchmark]: RCFGBuilder took 1935.41ms. Allocated memory was 113.2MB in the beginning and 151.0MB in the end (delta: 37.7MB). Free memory was 68.5MB in the beginning and 102.6MB in the end (delta: -34.1MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2022-11-19 07:29:24,171 INFO L158 Benchmark]: TraceAbstraction took 24665.35ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 101.8MB in the beginning and 79.3MB in the end (delta: 22.5MB). Peak memory consumption was 98.6MB. Max. memory is 16.1GB. [2022-11-19 07:29:24,172 INFO L158 Benchmark]: Witness Printer took 90.29ms. Allocated memory is still 226.5MB. Free memory was 79.3MB in the beginning and 76.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:29:24,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory was 92.5MB in the beginning and 92.5MB in the end (delta: 52.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 961.95ms. Allocated memory is still 113.2MB. Free memory was 74.3MB in the beginning and 74.0MB in the end (delta: 323.8kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.92ms. Allocated memory is still 113.2MB. Free memory was 74.0MB in the beginning and 71.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.42ms. Allocated memory is still 113.2MB. Free memory was 71.2MB in the beginning and 68.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1935.41ms. Allocated memory was 113.2MB in the beginning and 151.0MB in the end (delta: 37.7MB). Free memory was 68.5MB in the beginning and 102.6MB in the end (delta: -34.1MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * TraceAbstraction took 24665.35ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 101.8MB in the beginning and 79.3MB in the end (delta: 22.5MB). Peak memory consumption was 98.6MB. Max. memory is 16.1GB. * Witness Printer took 90.29ms. Allocated memory is still 226.5MB. Free memory was 79.3MB in the beginning and 76.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.8s, 169 PlacesBefore, 49 PlacesAfterwards, 158 TransitionsBefore, 37 TransitionsAfterwards, 3746 CoEnabledTransitionPairs, 8 FixpointIterations, 64 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 136 TotalNumberOfCompositions, 13232 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4545, independent: 4168, independent conditional: 0, independent unconditional: 4168, dependent: 377, dependent conditional: 0, dependent unconditional: 377, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2555, independent: 2483, independent conditional: 0, independent unconditional: 2483, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2555, independent: 2409, independent conditional: 0, independent unconditional: 2409, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 146, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1304, independent: 208, independent conditional: 0, independent unconditional: 208, dependent: 1096, dependent conditional: 0, dependent unconditional: 1096, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4545, independent: 1685, independent conditional: 0, independent unconditional: 1685, dependent: 305, dependent conditional: 0, dependent unconditional: 305, unknown: 2555, unknown conditional: 0, unknown unconditional: 2555] , Statistics on independence cache: Total cache size (in pairs): 217, Positive cache size: 186, Positive conditional cache size: 0, Positive unconditional cache size: 186, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, 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: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 814]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 814]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 850]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 850]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 867]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 867]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 198 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 24.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 20.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 259 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 259 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 383 IncrementalHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 18 mSDtfsCounter, 383 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6634occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-19 07:29:24,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec333df-0e0c-4d50-96e0-685cea00bc54/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE