./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9 --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 f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca --- 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-6b4ec56 [2022-11-20 18:56:31,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:56:31,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:56:31,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:56:31,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:56:31,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:56:31,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:56:31,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:56:31,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:56:31,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:56:31,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:56:31,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:56:31,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:56:31,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:56:31,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:56:31,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:56:31,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:56:31,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:56:31,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:56:31,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:56:31,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:56:31,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:56:31,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:56:31,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:56:31,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:56:31,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:56:31,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:56:31,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:56:31,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:56:31,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:56:31,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:56:31,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:56:31,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:56:31,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:56:31,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:56:31,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:56:31,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:56:31,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:56:31,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:56:31,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:56:31,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:56:31,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-20 18:56:31,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:56:31,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:56:31,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 18:56:31,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 18:56:31,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:56:31,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 18:56:31,416 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 18:56:31,417 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 18:56:31,417 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 18:56:31,417 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 18:56:31,417 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 18:56:31,417 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 18:56:31,417 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 18:56:31,418 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 18:56:31,418 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 18:56:31,418 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 18:56:31,418 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 18:56:31,418 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 18:56:31,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:56:31,419 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 18:56:31,420 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:56:31,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:56:31,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 18:56:31,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:56:31,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:56:31,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:56:31,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:56:31,421 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:56:31,421 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 18:56:31,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:56:31,421 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:56:31,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:56:31,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:56:31,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 18:56:31,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 18:56:31,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:56:31,423 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 18:56:31,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:56:31,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:56:31,423 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 18:56:31,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:56:31,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:56:31,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 18:56:31,424 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_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5d83fc7ee9b26859e9993ee2fcff801f4a9d92dea17a48a6a39594bb6b759ca [2022-11-20 18:56:31,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:56:31,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:56:31,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:56:31,768 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:56:31,769 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:56:31,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i [2022-11-20 18:56:34,950 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:56:35,255 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:56:35,255 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i [2022-11-20 18:56:35,270 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/data/0366d6b3e/d1da1115954747f5a6e1f8895d99476f/FLAG871b7bfa7 [2022-11-20 18:56:35,285 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/data/0366d6b3e/d1da1115954747f5a6e1f8895d99476f [2022-11-20 18:56:35,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:56:35,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:56:35,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:56:35,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:56:35,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:56:35,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:35,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45eea47e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35, skipping insertion in model container [2022-11-20 18:56:35,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:35,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:56:35,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:56:35,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i[958,971] [2022-11-20 18:56:35,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:56:35,870 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:56:35,883 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/sv-benchmarks/c/pthread-wmm/mix036_power.opt_rmo.opt.i[958,971] [2022-11-20 18:56:35,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:56:35,990 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:56:35,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35 WrapperNode [2022-11-20 18:56:35,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:56:35,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:56:35,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:56:35,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:56:36,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:36,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:36,085 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 149 [2022-11-20 18:56:36,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:56:36,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:56:36,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:56:36,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:56:36,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:36,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:36,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:36,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:36,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:36,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:36,136 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:36,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:36,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:56:36,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:56:36,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:56:36,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:56:36,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (1/1) ... [2022-11-20 18:56:36,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 18:56:36,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 18:56:36,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 18:56:36,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 18:56:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:56:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 18:56:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 18:56:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:56:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:56:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 18:56:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 18:56:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 18:56:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 18:56:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 18:56:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 18:56:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 18:56:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 18:56:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 18:56:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 18:56:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:56:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:56:36,236 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 18:56:36,429 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:56:36,444 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:56:37,004 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:56:37,139 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:56:37,139 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 18:56:37,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:56:37 BoogieIcfgContainer [2022-11-20 18:56:37,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:56:37,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 18:56:37,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 18:56:37,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 18:56:37,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:56:35" (1/3) ... [2022-11-20 18:56:37,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6021d91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:56:37, skipping insertion in model container [2022-11-20 18:56:37,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:56:35" (2/3) ... [2022-11-20 18:56:37,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6021d91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:56:37, skipping insertion in model container [2022-11-20 18:56:37,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:56:37" (3/3) ... [2022-11-20 18:56:37,185 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036_power.opt_rmo.opt.i [2022-11-20 18:56:37,199 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 18:56:37,229 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 18:56:37,230 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 18:56:37,230 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 18:56:37,336 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 18:56:37,379 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 18:56:37,396 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 145 transitions, 310 flow [2022-11-20 18:56:37,399 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 145 transitions, 310 flow [2022-11-20 18:56:37,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 310 flow [2022-11-20 18:56:37,470 INFO L130 PetriNetUnfolder]: 2/141 cut-off events. [2022-11-20 18:56:37,470 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 18:56:37,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 2/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-11-20 18:56:37,481 INFO L119 LiptonReduction]: Number of co-enabled transitions 4100 [2022-11-20 18:56:44,559 INFO L134 LiptonReduction]: Checked pairs total: 14568 [2022-11-20 18:56:44,560 INFO L136 LiptonReduction]: Total number of compositions: 124 [2022-11-20 18:56:44,570 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 38 transitions, 96 flow [2022-11-20 18:56:45,001 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7642 states, 7562 states have (on average 4.348585030415234) internal successors, (32884), 7641 states have internal predecessors, (32884), 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) [2022-11-20 18:56:45,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 18:56:45,027 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;@13d0c13c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 18:56:45,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-20 18:56:45,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 7642 states, 7562 states have (on average 4.348585030415234) internal successors, (32884), 7641 states have internal predecessors, (32884), 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) [2022-11-20 18:56:45,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 18:56:45,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:56:45,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-20 18:56:45,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 18:56:45,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:56:45,064 INFO L85 PathProgramCache]: Analyzing trace with hash 18534426, now seen corresponding path program 1 times [2022-11-20 18:56:45,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:56:45,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104402206] [2022-11-20 18:56:45,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:56:45,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:56:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:56:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:56:45,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 18:56:45,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104402206] [2022-11-20 18:56:45,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104402206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 18:56:45,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 18:56:45,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 18:56:45,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923475534] [2022-11-20 18:56:45,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 18:56:45,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 18:56:45,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 18:56:45,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 18:56:45,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 18:56:45,434 INFO L87 Difference]: Start difference. First operand has 7642 states, 7562 states have (on average 4.348585030415234) internal successors, (32884), 7641 states have internal predecessors, (32884), 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) [2022-11-20 18:56:45,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 18:56:45,719 INFO L93 Difference]: Finished difference Result 4354 states and 15741 transitions. [2022-11-20 18:56:45,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 18:56:45,722 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 [2022-11-20 18:56:45,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 18:56:45,792 INFO L225 Difference]: With dead ends: 4354 [2022-11-20 18:56:45,792 INFO L226 Difference]: Without dead ends: 4354 [2022-11-20 18:56:45,793 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 [2022-11-20 18:56:45,797 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 18 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 18:56:45,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 8 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 18:56:45,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2022-11-20 18:56:46,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 4354. [2022-11-20 18:56:46,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4354 states, 4290 states have (on average 3.669230769230769) internal successors, (15741), 4353 states have internal predecessors, (15741), 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) [2022-11-20 18:56:46,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4354 states to 4354 states and 15741 transitions. [2022-11-20 18:56:46,173 INFO L78 Accepts]: Start accepts. Automaton has 4354 states and 15741 transitions. Word has length 4 [2022-11-20 18:56:46,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 18:56:46,186 INFO L495 AbstractCegarLoop]: Abstraction has 4354 states and 15741 transitions. [2022-11-20 18:56:46,186 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) [2022-11-20 18:56:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 4354 states and 15741 transitions. [2022-11-20 18:56:46,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 18:56:46,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:56:46,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 18:56:46,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 18:56:46,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 18:56:46,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:56:46,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2058165153, now seen corresponding path program 1 times [2022-11-20 18:56:46,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:56:46,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296504225] [2022-11-20 18:56:46,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:56:46,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:56:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:56:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:56:46,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 18:56:46,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296504225] [2022-11-20 18:56:46,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296504225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 18:56:46,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 18:56:46,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 18:56:46,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224014881] [2022-11-20 18:56:46,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 18:56:46,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 18:56:46,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 18:56:46,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 18:56:46,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 18:56:46,397 INFO L87 Difference]: Start difference. First operand 4354 states and 15741 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) [2022-11-20 18:56:46,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 18:56:46,569 INFO L93 Difference]: Finished difference Result 2830 states and 10359 transitions. [2022-11-20 18:56:46,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 18:56:46,570 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 [2022-11-20 18:56:46,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 18:56:46,591 INFO L225 Difference]: With dead ends: 2830 [2022-11-20 18:56:46,592 INFO L226 Difference]: Without dead ends: 2830 [2022-11-20 18:56:46,648 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 [2022-11-20 18:56:46,649 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 37 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 18:56:46,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 8 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 18:56:46,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2022-11-20 18:56:46,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2830. [2022-11-20 18:56:46,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2830 states, 2816 states have (on average 3.678622159090909) internal successors, (10359), 2829 states have internal predecessors, (10359), 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) [2022-11-20 18:56:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2830 states to 2830 states and 10359 transitions. [2022-11-20 18:56:46,826 INFO L78 Accepts]: Start accepts. Automaton has 2830 states and 10359 transitions. Word has length 9 [2022-11-20 18:56:46,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 18:56:46,826 INFO L495 AbstractCegarLoop]: Abstraction has 2830 states and 10359 transitions. [2022-11-20 18:56:46,827 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) [2022-11-20 18:56:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2830 states and 10359 transitions. [2022-11-20 18:56:46,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 18:56:46,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:56:46,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 18:56:46,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 18:56:46,832 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 18:56:46,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:56:46,833 INFO L85 PathProgramCache]: Analyzing trace with hash -621390648, now seen corresponding path program 1 times [2022-11-20 18:56:46,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:56:46,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144958243] [2022-11-20 18:56:46,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:56:46,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:56:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:56:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:56:47,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 18:56:47,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144958243] [2022-11-20 18:56:47,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144958243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 18:56:47,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 18:56:47,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 18:56:47,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157471186] [2022-11-20 18:56:47,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 18:56:47,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 18:56:47,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 18:56:47,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 18:56:47,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 18:56:47,032 INFO L87 Difference]: Start difference. First operand 2830 states and 10359 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) [2022-11-20 18:56:47,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 18:56:47,211 INFO L93 Difference]: Finished difference Result 2012 states and 7333 transitions. [2022-11-20 18:56:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 18:56:47,212 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 [2022-11-20 18:56:47,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 18:56:47,229 INFO L225 Difference]: With dead ends: 2012 [2022-11-20 18:56:47,229 INFO L226 Difference]: Without dead ends: 2012 [2022-11-20 18:56:47,230 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 [2022-11-20 18:56:47,231 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 38 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 18:56:47,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 10 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 18:56:47,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2022-11-20 18:56:47,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 2012. [2022-11-20 18:56:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 2002 states have (on average 3.662837162837163) internal successors, (7333), 2011 states have internal predecessors, (7333), 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) [2022-11-20 18:56:47,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 7333 transitions. [2022-11-20 18:56:47,401 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 7333 transitions. Word has length 10 [2022-11-20 18:56:47,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 18:56:47,402 INFO L495 AbstractCegarLoop]: Abstraction has 2012 states and 7333 transitions. [2022-11-20 18:56:47,402 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) [2022-11-20 18:56:47,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 7333 transitions. [2022-11-20 18:56:47,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 18:56:47,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:56:47,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 18:56:47,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 18:56:47,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 18:56:47,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:56:47,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1668881670, now seen corresponding path program 1 times [2022-11-20 18:56:47,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:56:47,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850125725] [2022-11-20 18:56:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:56:47,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:56:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:56:47,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:56:47,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 18:56:47,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850125725] [2022-11-20 18:56:47,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850125725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 18:56:47,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 18:56:47,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 18:56:47,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653132437] [2022-11-20 18:56:47,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 18:56:47,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 18:56:47,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 18:56:47,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 18:56:47,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 18:56:47,651 INFO L87 Difference]: Start difference. First operand 2012 states and 7333 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) [2022-11-20 18:56:47,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 18:56:47,829 INFO L93 Difference]: Finished difference Result 1814 states and 6793 transitions. [2022-11-20 18:56:47,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 18:56:47,830 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 [2022-11-20 18:56:47,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 18:56:47,844 INFO L225 Difference]: With dead ends: 1814 [2022-11-20 18:56:47,844 INFO L226 Difference]: Without dead ends: 1814 [2022-11-20 18:56:47,845 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 [2022-11-20 18:56:47,846 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 88 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 18:56:47,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 12 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 18:56:47,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2022-11-20 18:56:47,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1814. [2022-11-20 18:56:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1810 states have (on average 3.7530386740331494) internal successors, (6793), 1813 states have internal predecessors, (6793), 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) [2022-11-20 18:56:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 6793 transitions. [2022-11-20 18:56:47,917 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 6793 transitions. Word has length 16 [2022-11-20 18:56:47,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 18:56:47,918 INFO L495 AbstractCegarLoop]: Abstraction has 1814 states and 6793 transitions. [2022-11-20 18:56:47,919 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) [2022-11-20 18:56:47,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 6793 transitions. [2022-11-20 18:56:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 18:56:47,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 18:56:47,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 18:56:47,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 18:56:47,926 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-20 18:56:47,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:56:47,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1788752103, now seen corresponding path program 1 times [2022-11-20 18:56:47,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 18:56:47,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685915179] [2022-11-20 18:56:47,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 18:56:47,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:56:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:56:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:56:48,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 18:56:48,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685915179] [2022-11-20 18:56:48,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685915179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 18:56:48,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 18:56:48,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 18:56:48,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995983342] [2022-11-20 18:56:48,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 18:56:48,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 18:56:48,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 18:56:48,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 18:56:48,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 18:56:48,115 INFO L87 Difference]: Start difference. First operand 1814 states and 6793 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 18:56:48,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 18:56:48,314 INFO L93 Difference]: Finished difference Result 1798 states and 6765 transitions. [2022-11-20 18:56:48,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 18:56:48,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-20 18:56:48,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 18:56:48,315 INFO L225 Difference]: With dead ends: 1798 [2022-11-20 18:56:48,315 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 18:56:48,316 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 [2022-11-20 18:56:48,317 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 118 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 18:56:48,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 8 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 18:56:48,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 18:56:48,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 18:56:48,318 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) [2022-11-20 18:56:48,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 18:56:48,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-20 18:56:48,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 18:56:48,319 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 18:56:48,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 18:56:48,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 18:56:48,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 18:56:48,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-20 18:56:48,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-20 18:56:48,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-20 18:56:48,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-20 18:56:48,323 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-20 18:56:48,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-20 18:56:48,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-20 18:56:48,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-20 18:56:48,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-20 18:56:48,324 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-20 18:56:48,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-20 18:56:48,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-20 18:56:48,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-20 18:56:48,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-20 18:56:48,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-20 18:56:48,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-20 18:56:48,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-20 18:56:48,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-20 18:56:48,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-20 18:56:48,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-20 18:56:48,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 18:56:48,332 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 18:56:48,338 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 18:56:48,338 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 18:56:48,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:56:48 BasicIcfg [2022-11-20 18:56:48,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 18:56:48,343 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:56:48,343 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:56:48,343 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:56:48,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:56:37" (3/4) ... [2022-11-20 18:56:48,346 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 18:56:48,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 18:56:48,353 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 18:56:48,353 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-20 18:56:48,353 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-20 18:56:48,360 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-20 18:56:48,360 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 18:56:48,361 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 18:56:48,361 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 18:56:48,418 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 18:56:48,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:56:48,419 INFO L158 Benchmark]: Toolchain (without parser) took 13130.55ms. Allocated memory was 188.7MB in the beginning and 310.4MB in the end (delta: 121.6MB). Free memory was 143.3MB in the beginning and 153.5MB in the end (delta: -10.3MB). Peak memory consumption was 113.0MB. Max. memory is 16.1GB. [2022-11-20 18:56:48,420 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 188.7MB. Free memory is still 159.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:56:48,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 700.87ms. Allocated memory is still 188.7MB. Free memory was 143.3MB in the beginning and 120.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-20 18:56:48,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.84ms. Allocated memory is still 188.7MB. Free memory was 119.6MB in the beginning and 117.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:56:48,422 INFO L158 Benchmark]: Boogie Preprocessor took 54.82ms. Allocated memory is still 188.7MB. Free memory was 117.5MB in the beginning and 115.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:56:48,422 INFO L158 Benchmark]: RCFGBuilder took 1000.36ms. Allocated memory is still 188.7MB. Free memory was 115.4MB in the beginning and 81.2MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 18:56:48,423 INFO L158 Benchmark]: TraceAbstraction took 11166.49ms. Allocated memory was 188.7MB in the beginning and 310.4MB in the end (delta: 121.6MB). Free memory was 154.8MB in the beginning and 156.7MB in the end (delta: -1.9MB). Peak memory consumption was 118.0MB. Max. memory is 16.1GB. [2022-11-20 18:56:48,424 INFO L158 Benchmark]: Witness Printer took 76.32ms. Allocated memory is still 310.4MB. Free memory was 156.7MB in the beginning and 153.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 18:56:48,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 188.7MB. Free memory is still 159.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 700.87ms. Allocated memory is still 188.7MB. Free memory was 143.3MB in the beginning and 120.2MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.84ms. Allocated memory is still 188.7MB. Free memory was 119.6MB in the beginning and 117.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.82ms. Allocated memory is still 188.7MB. Free memory was 117.5MB in the beginning and 115.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1000.36ms. Allocated memory is still 188.7MB. Free memory was 115.4MB in the beginning and 81.2MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11166.49ms. Allocated memory was 188.7MB in the beginning and 310.4MB in the end (delta: 121.6MB). Free memory was 154.8MB in the beginning and 156.7MB in the end (delta: -1.9MB). Peak memory consumption was 118.0MB. Max. memory is 16.1GB. * Witness Printer took 76.32ms. Allocated memory is still 310.4MB. Free memory was 156.7MB in the beginning and 153.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 156 PlacesBefore, 50 PlacesAfterwards, 145 TransitionsBefore, 38 TransitionsAfterwards, 4100 CoEnabledTransitionPairs, 8 FixpointIterations, 48 TrivialSequentialCompositions, 66 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 124 TotalNumberOfCompositions, 14568 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6183, independent: 5831, independent conditional: 0, independent unconditional: 5831, dependent: 352, dependent conditional: 0, dependent unconditional: 352, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2936, independent: 2852, independent conditional: 0, independent unconditional: 2852, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2936, independent: 2782, independent conditional: 0, independent unconditional: 2782, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 154, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 767, independent: 165, independent conditional: 0, independent unconditional: 165, dependent: 602, dependent conditional: 0, dependent unconditional: 602, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6183, independent: 2979, independent conditional: 0, independent unconditional: 2979, dependent: 268, dependent conditional: 0, dependent unconditional: 268, unknown: 2936, unknown conditional: 0, unknown unconditional: 2936] , Statistics on independence cache: Total cache size (in pairs): 335, Positive cache size: 306, Positive conditional cache size: 0, Positive unconditional cache size: 306, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, 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: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: 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 - PositiveResult [Line: 848]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: 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, 188 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 11.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 299 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 299 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 387 IncrementalHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 24 mSDtfsCounter, 387 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=7642occurred 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: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 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! [2022-11-20 18:56:48,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa86f2f5-27b3-45d4-9562-823982ffa8a7/bin/utaipan-6cKwYrpEi9/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