./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.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_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/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_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/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_ae3133c1-b838-4bbf-b87f-e1484edfb47b/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 51eb1f25b31a14b06f8a94357507f98faff1b5d262be3400ea1666eb362dde3f --- 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 08:11:05,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:11:05,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:11:05,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:11:05,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:11:05,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:11:05,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:11:05,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:11:05,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:11:05,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:11:05,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:11:05,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:11:05,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:11:05,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:11:05,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:11:05,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:11:05,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:11:05,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:11:05,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:11:05,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:11:05,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:11:05,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:11:05,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:11:05,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:11:05,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:11:05,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:11:05,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:11:05,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:11:05,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:11:05,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:11:05,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:11:05,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:11:05,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:11:05,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:11:05,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:11:05,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:11:05,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:11:05,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:11:05,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:11:05,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:11:05,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:11:05,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 08:11:05,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:11:05,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:11:05,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:11:05,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:11:05,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:11:05,878 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:11:05,878 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:11:05,878 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:11:05,879 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:11:05,879 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:11:05,880 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:11:05,881 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:11:05,881 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:11:05,881 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:11:05,881 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:11:05,882 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:11:05,882 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:11:05,882 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:11:05,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:11:05,883 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:11:05,884 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:11:05,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:11:05,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:11:05,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:11:05,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:11:05,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:11:05,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:11:05,887 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:11:05,888 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:11:05,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:11:05,888 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:11:05,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:11:05,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:11:05,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:11:05,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:11:05,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:11:05,890 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:11:05,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:11:05,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:11:05,891 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:11:05,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:11:05,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:11:05,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:11:05,892 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_ae3133c1-b838-4bbf-b87f-e1484edfb47b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51eb1f25b31a14b06f8a94357507f98faff1b5d262be3400ea1666eb362dde3f [2022-11-19 08:11:06,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:11:06,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:11:06,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:11:06,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:11:06,222 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:11:06,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i [2022-11-19 08:11:06,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/data/a0443f2bc/e42a5e1e5e2f499fb586978d13c1b40f/FLAGf95484038 [2022-11-19 08:11:07,069 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:11:07,081 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i [2022-11-19 08:11:07,105 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/data/a0443f2bc/e42a5e1e5e2f499fb586978d13c1b40f/FLAGf95484038 [2022-11-19 08:11:07,360 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/data/a0443f2bc/e42a5e1e5e2f499fb586978d13c1b40f [2022-11-19 08:11:07,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:11:07,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:11:07,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:11:07,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:11:07,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:11:07,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:11:07" (1/1) ... [2022-11-19 08:11:07,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f5b4b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:07, skipping insertion in model container [2022-11-19 08:11:07,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:11:07" (1/1) ... [2022-11-19 08:11:07,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:11:07,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:11:07,681 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_ae3133c1-b838-4bbf-b87f-e1484edfb47b/sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i[1014,1027] [2022-11-19 08:11:08,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:11:08,071 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:11:08,090 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_ae3133c1-b838-4bbf-b87f-e1484edfb47b/sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i[1014,1027] [2022-11-19 08:11:08,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:11:08,214 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:11:08,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08 WrapperNode [2022-11-19 08:11:08,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:11:08,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:11:08,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:11:08,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:11:08,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (1/1) ... [2022-11-19 08:11:08,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (1/1) ... [2022-11-19 08:11:08,271 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 137 [2022-11-19 08:11:08,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:11:08,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:11:08,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:11:08,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:11:08,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (1/1) ... [2022-11-19 08:11:08,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (1/1) ... [2022-11-19 08:11:08,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (1/1) ... [2022-11-19 08:11:08,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (1/1) ... [2022-11-19 08:11:08,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (1/1) ... [2022-11-19 08:11:08,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (1/1) ... [2022-11-19 08:11:08,307 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (1/1) ... [2022-11-19 08:11:08,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (1/1) ... [2022-11-19 08:11:08,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:11:08,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:11:08,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:11:08,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:11:08,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (1/1) ... [2022-11-19 08:11:08,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:11:08,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:08,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:11:08,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:11:08,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:11:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:11:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:11:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:11:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:11:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:11:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-19 08:11:08,435 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-19 08:11:08,436 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-19 08:11:08,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-19 08:11:08,436 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-19 08:11:08,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-19 08:11:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:11:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:11:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:11:08,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:11:08,439 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 08:11:08,683 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:11:08,686 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:11:09,298 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:11:09,593 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:11:09,593 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:11:09,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:11:09 BoogieIcfgContainer [2022-11-19 08:11:09,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:11:09,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:11:09,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:11:09,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:11:09,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:11:07" (1/3) ... [2022-11-19 08:11:09,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1925cf7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:11:09, skipping insertion in model container [2022-11-19 08:11:09,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:11:08" (2/3) ... [2022-11-19 08:11:09,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1925cf7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:11:09, skipping insertion in model container [2022-11-19 08:11:09,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:11:09" (3/3) ... [2022-11-19 08:11:09,612 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_power.oepc-thin001_power.oepc.i [2022-11-19 08:11:09,623 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 08:11:09,635 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:11:09,637 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-19 08:11:09,637 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:11:09,766 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:11:09,823 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:11:09,840 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 137 transitions, 289 flow [2022-11-19 08:11:09,852 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 137 transitions, 289 flow [2022-11-19 08:11:09,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 137 transitions, 289 flow [2022-11-19 08:11:09,956 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2022-11-19 08:11:09,956 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:11:09,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-19 08:11:09,965 INFO L119 LiptonReduction]: Number of co-enabled transitions 2352 [2022-11-19 08:11:24,062 INFO L134 LiptonReduction]: Checked pairs total: 7703 [2022-11-19 08:11:24,063 INFO L136 LiptonReduction]: Total number of compositions: 121 [2022-11-19 08:11:24,072 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 29 transitions, 73 flow [2022-11-19 08:11:24,178 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1090 states, 1064 states have (on average 3.526315789473684) internal successors, (3752), 1089 states have internal predecessors, (3752), 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 08:11:24,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:11:24,206 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;@3f18621c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:11:24,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-19 08:11:24,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 1090 states, 1064 states have (on average 3.526315789473684) internal successors, (3752), 1089 states have internal predecessors, (3752), 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 08:11:24,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:11:24,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:24,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:11:24,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:11:24,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:24,226 INFO L85 PathProgramCache]: Analyzing trace with hash 23090415, now seen corresponding path program 1 times [2022-11-19 08:11:24,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:24,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796366743] [2022-11-19 08:11:24,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:24,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:24,597 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 08:11:24,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:24,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796366743] [2022-11-19 08:11:24,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796366743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:24,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:24,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:11:24,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426970882] [2022-11-19 08:11:24,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:24,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:11:24,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:24,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:11:24,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:24,652 INFO L87 Difference]: Start difference. First operand has 1090 states, 1064 states have (on average 3.526315789473684) internal successors, (3752), 1089 states have internal predecessors, (3752), 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 08:11:24,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:24,779 INFO L93 Difference]: Finished difference Result 658 states and 2045 transitions. [2022-11-19 08:11:24,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:11:24,783 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 08:11:24,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:24,809 INFO L225 Difference]: With dead ends: 658 [2022-11-19 08:11:24,809 INFO L226 Difference]: Without dead ends: 658 [2022-11-19 08:11:24,810 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 08:11:24,814 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:24,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:11:24,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-11-19 08:11:24,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2022-11-19 08:11:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 651 states have (on average 3.141321044546851) internal successors, (2045), 657 states have internal predecessors, (2045), 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 08:11:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2045 transitions. [2022-11-19 08:11:24,932 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2045 transitions. Word has length 4 [2022-11-19 08:11:24,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:24,933 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 2045 transitions. [2022-11-19 08:11:24,933 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 08:11:24,933 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2045 transitions. [2022-11-19 08:11:24,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 08:11:24,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:24,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 08:11:24,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:11:24,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:11:24,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:24,936 INFO L85 PathProgramCache]: Analyzing trace with hash 715800992, now seen corresponding path program 1 times [2022-11-19 08:11:24,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:24,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213198135] [2022-11-19 08:11:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:24,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:25,081 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 08:11:25,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:25,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213198135] [2022-11-19 08:11:25,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213198135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:25,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:25,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:11:25,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008789654] [2022-11-19 08:11:25,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:25,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:11:25,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:25,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:11:25,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:25,086 INFO L87 Difference]: Start difference. First operand 658 states and 2045 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:25,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:25,195 INFO L93 Difference]: Finished difference Result 466 states and 1339 transitions. [2022-11-19 08:11:25,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:11:25,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 08:11:25,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:25,204 INFO L225 Difference]: With dead ends: 466 [2022-11-19 08:11:25,205 INFO L226 Difference]: Without dead ends: 466 [2022-11-19 08:11:25,206 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 08:11:25,209 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:25,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 9 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:11:25,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-11-19 08:11:25,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2022-11-19 08:11:25,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 460 states have (on average 2.9108695652173915) internal successors, (1339), 465 states have internal predecessors, (1339), 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 08:11:25,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1339 transitions. [2022-11-19 08:11:25,281 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1339 transitions. Word has length 5 [2022-11-19 08:11:25,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:25,282 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 1339 transitions. [2022-11-19 08:11:25,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:25,283 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1339 transitions. [2022-11-19 08:11:25,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:11:25,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:25,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:25,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:11:25,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:11:25,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:25,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2074675703, now seen corresponding path program 1 times [2022-11-19 08:11:25,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:25,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810649064] [2022-11-19 08:11:25,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:25,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:25,464 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 08:11:25,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:25,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810649064] [2022-11-19 08:11:25,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810649064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:25,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:25,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:11:25,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212445934] [2022-11-19 08:11:25,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:25,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:11:25,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:25,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:11:25,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:11:25,472 INFO L87 Difference]: Start difference. First operand 466 states and 1339 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 08:11:25,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:25,617 INFO L93 Difference]: Finished difference Result 370 states and 1078 transitions. [2022-11-19 08:11:25,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:11:25,618 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 08:11:25,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:25,621 INFO L225 Difference]: With dead ends: 370 [2022-11-19 08:11:25,621 INFO L226 Difference]: Without dead ends: 370 [2022-11-19 08:11:25,622 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 08:11:25,623 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:25,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 12 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:11:25,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-19 08:11:25,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-11-19 08:11:25,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 367 states have (on average 2.9373297002724796) internal successors, (1078), 369 states have internal predecessors, (1078), 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 08:11:25,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1078 transitions. [2022-11-19 08:11:25,640 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1078 transitions. Word has length 10 [2022-11-19 08:11:25,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:25,641 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 1078 transitions. [2022-11-19 08:11:25,641 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 08:11:25,641 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1078 transitions. [2022-11-19 08:11:25,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 08:11:25,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:25,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:25,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:11:25,645 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:11:25,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:25,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1248313799, now seen corresponding path program 1 times [2022-11-19 08:11:25,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:25,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355838092] [2022-11-19 08:11:25,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:25,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:25,796 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 08:11:25,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:25,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355838092] [2022-11-19 08:11:25,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355838092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:25,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:25,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:11:25,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597954051] [2022-11-19 08:11:25,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:25,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:11:25,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:25,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:11:25,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:11:25,799 INFO L87 Difference]: Start difference. First operand 370 states and 1078 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 08:11:25,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:25,929 INFO L93 Difference]: Finished difference Result 358 states and 1057 transitions. [2022-11-19 08:11:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:11:25,929 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 08:11:25,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:25,930 INFO L225 Difference]: With dead ends: 358 [2022-11-19 08:11:25,930 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:11:25,930 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 08:11:25,932 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 39 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 9 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 [2022-11-19 08:11:25,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 9 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:11:25,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:11:25,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:11:25,934 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 08:11:25,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:11:25,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-11-19 08:11:25,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:25,934 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:11:25,934 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 08:11:25,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:11:25,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:11:25,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-19 08:11:25,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-19 08:11:25,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-19 08:11:25,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-19 08:11:25,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-19 08:11:25,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-19 08:11:25,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-19 08:11:25,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-19 08:11:25,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-19 08:11:25,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-19 08:11:25,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-19 08:11:25,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-19 08:11:25,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-19 08:11:25,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-19 08:11:25,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-19 08:11:25,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:11:25,945 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-19 08:11:25,952 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:11:25,952 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:11:25,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:11:25 BasicIcfg [2022-11-19 08:11:25,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:11:25,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:11:25,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:11:25,957 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:11:25,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:11:09" (3/4) ... [2022-11-19 08:11:25,960 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:11:25,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-19 08:11:25,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-19 08:11:25,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-19 08:11:25,981 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2022-11-19 08:11:25,982 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-19 08:11:25,982 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 08:11:25,983 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:11:26,053 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:11:26,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:11:26,054 INFO L158 Benchmark]: Toolchain (without parser) took 18688.92ms. Allocated memory was 121.6MB in the beginning and 195.0MB in the end (delta: 73.4MB). Free memory was 87.8MB in the beginning and 72.9MB in the end (delta: 14.9MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. [2022-11-19 08:11:26,054 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:11:26,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 847.47ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 84.0MB in the end (delta: 3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:11:26,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.47ms. Allocated memory is still 121.6MB. Free memory was 84.0MB in the beginning and 81.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:11:26,055 INFO L158 Benchmark]: Boogie Preprocessor took 41.78ms. Allocated memory is still 121.6MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:11:26,055 INFO L158 Benchmark]: RCFGBuilder took 1283.14ms. Allocated memory is still 121.6MB. Free memory was 79.4MB in the beginning and 51.9MB in the end (delta: 27.5MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-11-19 08:11:26,056 INFO L158 Benchmark]: TraceAbstraction took 16355.06ms. Allocated memory was 121.6MB in the beginning and 195.0MB in the end (delta: 73.4MB). Free memory was 51.9MB in the beginning and 77.1MB in the end (delta: -25.2MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2022-11-19 08:11:26,056 INFO L158 Benchmark]: Witness Printer took 96.80ms. Allocated memory is still 195.0MB. Free memory was 77.1MB in the beginning and 72.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:11:26,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 40.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 847.47ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 84.0MB in the end (delta: 3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.47ms. Allocated memory is still 121.6MB. Free memory was 84.0MB in the beginning and 81.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.78ms. Allocated memory is still 121.6MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1283.14ms. Allocated memory is still 121.6MB. Free memory was 79.4MB in the beginning and 51.9MB in the end (delta: 27.5MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * TraceAbstraction took 16355.06ms. Allocated memory was 121.6MB in the beginning and 195.0MB in the end (delta: 73.4MB). Free memory was 51.9MB in the beginning and 77.1MB in the end (delta: -25.2MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Witness Printer took 96.80ms. Allocated memory is still 195.0MB. Free memory was 77.1MB in the beginning and 72.9MB 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: 14.2s, 145 PlacesBefore, 38 PlacesAfterwards, 137 TransitionsBefore, 29 TransitionsAfterwards, 2352 CoEnabledTransitionPairs, 8 FixpointIterations, 61 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 121 TotalNumberOfCompositions, 7703 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4132, independent: 3846, independent conditional: 0, independent unconditional: 3846, dependent: 286, dependent conditional: 0, dependent unconditional: 286, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1685, independent: 1633, independent conditional: 0, independent unconditional: 1633, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1685, independent: 1596, independent conditional: 0, independent unconditional: 1596, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 89, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 843, independent: 97, independent conditional: 0, independent unconditional: 97, dependent: 746, dependent conditional: 0, dependent unconditional: 746, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4132, independent: 2213, independent conditional: 0, independent unconditional: 2213, dependent: 234, dependent conditional: 0, dependent unconditional: 234, unknown: 1685, unknown conditional: 0, unknown unconditional: 1685] , Statistics on independence cache: Total cache size (in pairs): 190, Positive cache size: 167, Positive conditional cache size: 0, Positive unconditional cache size: 167, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, 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: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: 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, 167 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 16.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 18 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1090occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 0.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 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! [2022-11-19 08:11:26,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae3133c1-b838-4bbf-b87f-e1484edfb47b/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