./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0 --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 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 --- 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-e04fb08 [2022-11-16 16:23:48,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:23:48,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:23:48,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:23:48,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:23:48,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:23:48,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:23:48,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:23:48,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:23:48,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:23:48,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:23:48,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:23:48,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:23:48,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:23:48,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:23:48,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:23:48,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:23:48,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:23:48,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:23:48,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:23:48,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:23:48,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:23:48,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:23:48,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:23:48,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:23:48,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:23:48,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:23:48,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:23:48,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:23:48,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:23:48,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:23:48,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:23:48,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:23:48,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:23:48,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:23:48,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:23:48,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:23:48,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:23:48,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:23:48,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:23:48,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:23:48,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 16:23:48,325 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:23:48,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:23:48,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:23:48,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:23:48,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:23:48,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:23:48,328 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:23:48,328 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:23:48,328 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:23:48,328 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:23:48,329 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:23:48,330 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:23:48,330 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:23:48,330 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:23:48,330 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:23:48,331 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:23:48,331 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:23:48,331 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:23:48,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:23:48,332 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:23:48,332 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:23:48,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:23:48,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:23:48,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:23:48,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:23:48,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:23:48,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:23:48,334 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 16:23:48,334 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:23:48,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:23:48,335 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:23:48,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:23:48,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:23:48,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:23:48,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:23:48,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:23:48,337 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:23:48,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:23:48,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:23:48,338 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:23:48,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:23:48,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:23:48,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:23:48,339 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_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 [2022-11-16 16:23:48,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:23:48,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:23:48,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:23:48,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:23:48,693 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:23:48,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-11-16 16:23:48,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/data/1d808035a/d88eadcacc804d1088fdb1f32c4b0d22/FLAG250f9197c [2022-11-16 16:23:49,375 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:23:49,376 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-11-16 16:23:49,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/data/1d808035a/d88eadcacc804d1088fdb1f32c4b0d22/FLAG250f9197c [2022-11-16 16:23:49,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/data/1d808035a/d88eadcacc804d1088fdb1f32c4b0d22 [2022-11-16 16:23:49,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:23:49,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:23:49,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:23:49,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:23:49,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:23:49,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:23:49" (1/1) ... [2022-11-16 16:23:49,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2f4737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:49, skipping insertion in model container [2022-11-16 16:23:49,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:23:49" (1/1) ... [2022-11-16 16:23:49,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:23:49,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:23:49,975 WARN L229 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_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-11-16 16:23:50,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:23:50,229 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:23:50,247 WARN L229 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_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-11-16 16:23:50,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:23:50,323 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:23:50,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50 WrapperNode [2022-11-16 16:23:50,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:23:50,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:23:50,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:23:50,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:23:50,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (1/1) ... [2022-11-16 16:23:50,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (1/1) ... [2022-11-16 16:23:50,401 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2022-11-16 16:23:50,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:23:50,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:23:50,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:23:50,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:23:50,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (1/1) ... [2022-11-16 16:23:50,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (1/1) ... [2022-11-16 16:23:50,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (1/1) ... [2022-11-16 16:23:50,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (1/1) ... [2022-11-16 16:23:50,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (1/1) ... [2022-11-16 16:23:50,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (1/1) ... [2022-11-16 16:23:50,423 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (1/1) ... [2022-11-16 16:23:50,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (1/1) ... [2022-11-16 16:23:50,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:23:50,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:23:50,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:23:50,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:23:50,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (1/1) ... [2022-11-16 16:23:50,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:23:50,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:23:50,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:23:50,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:23:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:23:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 16:23:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:23:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:23:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:23:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 16:23:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 16:23:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 16:23:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 16:23:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 16:23:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 16:23:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 16:23:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 16:23:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:23:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 16:23:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:23:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:23:50,506 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 16:23:50,728 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:23:50,730 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:23:51,037 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:23:51,070 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:23:51,071 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 16:23:51,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:23:51 BoogieIcfgContainer [2022-11-16 16:23:51,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:23:51,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:23:51,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:23:51,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:23:51,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:23:49" (1/3) ... [2022-11-16 16:23:51,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55538052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:23:51, skipping insertion in model container [2022-11-16 16:23:51,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:23:50" (2/3) ... [2022-11-16 16:23:51,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55538052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:23:51, skipping insertion in model container [2022-11-16 16:23:51,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:23:51" (3/3) ... [2022-11-16 16:23:51,094 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-11-16 16:23:51,104 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 16:23:51,116 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:23:51,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 16:23:51,116 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 16:23:51,243 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 16:23:51,292 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 16:23:51,308 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 114 transitions, 248 flow [2022-11-16 16:23:51,311 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 114 transitions, 248 flow [2022-11-16 16:23:51,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 114 transitions, 248 flow [2022-11-16 16:23:51,368 INFO L130 PetriNetUnfolder]: 2/110 cut-off events. [2022-11-16 16:23:51,369 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 16:23:51,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-11-16 16:23:51,378 INFO L119 LiptonReduction]: Number of co-enabled transitions 3298 [2022-11-16 16:23:54,974 INFO L134 LiptonReduction]: Checked pairs total: 7361 [2022-11-16 16:23:54,974 INFO L136 LiptonReduction]: Total number of compositions: 95 [2022-11-16 16:23:54,984 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 32 transitions, 84 flow [2022-11-16 16:23:55,221 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3131 states, 3051 states have (on average 3.944936086529007) internal successors, (12036), 3130 states have internal predecessors, (12036), 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) [2022-11-16 16:23:55,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:23:55,255 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;@5ac1e553, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:23:55,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-16 16:23:55,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 3131 states, 3051 states have (on average 3.944936086529007) internal successors, (12036), 3130 states have internal predecessors, (12036), 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) [2022-11-16 16:23:55,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 16:23:55,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:23:55,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 16:23:55,276 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 16:23:55,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:23:55,287 INFO L85 PathProgramCache]: Analyzing trace with hash 12645783, now seen corresponding path program 1 times [2022-11-16 16:23:55,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:23:55,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957395045] [2022-11-16 16:23:55,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:23:55,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:23:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:23:55,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:23:55,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:23:55,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957395045] [2022-11-16 16:23:55,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957395045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:23:55,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:23:55,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 16:23:55,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582060132] [2022-11-16 16:23:55,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:23:55,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:23:55,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:23:55,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:23:55,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:23:55,571 INFO L87 Difference]: Start difference. First operand has 3131 states, 3051 states have (on average 3.944936086529007) internal successors, (12036), 3130 states have internal predecessors, (12036), 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) [2022-11-16 16:23:55,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:23:55,721 INFO L93 Difference]: Finished difference Result 1843 states and 6192 transitions. [2022-11-16 16:23:55,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:23:55,723 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 [2022-11-16 16:23:55,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:23:55,756 INFO L225 Difference]: With dead ends: 1843 [2022-11-16 16:23:55,757 INFO L226 Difference]: Without dead ends: 1843 [2022-11-16 16:23:55,757 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 [2022-11-16 16:23:55,761 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:23:55,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 8 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:23:55,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2022-11-16 16:23:55,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1843. [2022-11-16 16:23:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1779 states have (on average 3.480607082630691) internal successors, (6192), 1842 states have internal predecessors, (6192), 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) [2022-11-16 16:23:55,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 6192 transitions. [2022-11-16 16:23:55,921 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 6192 transitions. Word has length 4 [2022-11-16 16:23:55,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:23:55,922 INFO L495 AbstractCegarLoop]: Abstraction has 1843 states and 6192 transitions. [2022-11-16 16:23:55,926 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) [2022-11-16 16:23:55,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 6192 transitions. [2022-11-16 16:23:55,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 16:23:55,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:23:55,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:23:55,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:23:55,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 16:23:55,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:23:55,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1759133826, now seen corresponding path program 1 times [2022-11-16 16:23:55,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:23:55,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141764106] [2022-11-16 16:23:55,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:23:55,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:23:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:23:56,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:23:56,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:23:56,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141764106] [2022-11-16 16:23:56,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141764106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:23:56,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:23:56,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:23:56,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995847967] [2022-11-16 16:23:56,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:23:56,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:23:56,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:23:56,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:23:56,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:23:56,131 INFO L87 Difference]: Start difference. First operand 1843 states and 6192 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:23:56,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:23:56,245 INFO L93 Difference]: Finished difference Result 1051 states and 3506 transitions. [2022-11-16 16:23:56,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:23:56,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 16:23:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:23:56,253 INFO L225 Difference]: With dead ends: 1051 [2022-11-16 16:23:56,253 INFO L226 Difference]: Without dead ends: 1051 [2022-11-16 16:23:56,254 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 [2022-11-16 16:23:56,255 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:23:56,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 8 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:23:56,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2022-11-16 16:23:56,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 1051. [2022-11-16 16:23:56,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1037 states have (on average 3.3809064609450337) internal successors, (3506), 1050 states have internal predecessors, (3506), 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) [2022-11-16 16:23:56,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 3506 transitions. [2022-11-16 16:23:56,340 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 3506 transitions. Word has length 8 [2022-11-16 16:23:56,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:23:56,340 INFO L495 AbstractCegarLoop]: Abstraction has 1051 states and 3506 transitions. [2022-11-16 16:23:56,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:23:56,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 3506 transitions. [2022-11-16 16:23:56,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 16:23:56,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:23:56,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:23:56,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:23:56,342 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 16:23:56,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:23:56,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1301426972, now seen corresponding path program 1 times [2022-11-16 16:23:56,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:23:56,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579507301] [2022-11-16 16:23:56,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:23:56,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:23:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:23:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:23:56,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:23:56,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579507301] [2022-11-16 16:23:56,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579507301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:23:56,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:23:56,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:23:56,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738512599] [2022-11-16 16:23:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:23:56,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:23:56,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:23:56,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:23:56,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:23:56,409 INFO L87 Difference]: Start difference. First operand 1051 states and 3506 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) [2022-11-16 16:23:56,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:23:56,500 INFO L93 Difference]: Finished difference Result 685 states and 2196 transitions. [2022-11-16 16:23:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:23:56,500 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 [2022-11-16 16:23:56,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:23:56,505 INFO L225 Difference]: With dead ends: 685 [2022-11-16 16:23:56,505 INFO L226 Difference]: Without dead ends: 685 [2022-11-16 16:23:56,506 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 [2022-11-16 16:23:56,507 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 36 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:23:56,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 10 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:23:56,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2022-11-16 16:23:56,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 685. [2022-11-16 16:23:56,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 675 states have (on average 3.2533333333333334) internal successors, (2196), 684 states have internal predecessors, (2196), 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) [2022-11-16 16:23:56,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 2196 transitions. [2022-11-16 16:23:56,531 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 2196 transitions. Word has length 9 [2022-11-16 16:23:56,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:23:56,532 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 2196 transitions. [2022-11-16 16:23:56,532 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) [2022-11-16 16:23:56,532 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 2196 transitions. [2022-11-16 16:23:56,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 16:23:56,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:23:56,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:23:56,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:23:56,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 16:23:56,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:23:56,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1032086463, now seen corresponding path program 1 times [2022-11-16 16:23:56,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:23:56,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429394515] [2022-11-16 16:23:56,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:23:56,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:23:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:23:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:23:56,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:23:56,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429394515] [2022-11-16 16:23:56,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429394515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:23:56,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:23:56,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 16:23:56,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495995836] [2022-11-16 16:23:56,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:23:56,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 16:23:56,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:23:56,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 16:23:56,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:23:56,634 INFO L87 Difference]: Start difference. First operand 685 states and 2196 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:23:56,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:23:56,740 INFO L93 Difference]: Finished difference Result 571 states and 1896 transitions. [2022-11-16 16:23:56,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:23:56,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-16 16:23:56,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:23:56,744 INFO L225 Difference]: With dead ends: 571 [2022-11-16 16:23:56,745 INFO L226 Difference]: Without dead ends: 571 [2022-11-16 16:23:56,745 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 [2022-11-16 16:23:56,747 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 51 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:23:56,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 12 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:23:56,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-11-16 16:23:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2022-11-16 16:23:56,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 567 states have (on average 3.3439153439153437) internal successors, (1896), 570 states have internal predecessors, (1896), 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) [2022-11-16 16:23:56,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1896 transitions. [2022-11-16 16:23:56,786 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1896 transitions. Word has length 14 [2022-11-16 16:23:56,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:23:56,786 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 1896 transitions. [2022-11-16 16:23:56,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:23:56,789 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1896 transitions. [2022-11-16 16:23:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 16:23:56,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:23:56,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:23:56,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:23:56,799 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 16:23:56,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:23:56,800 INFO L85 PathProgramCache]: Analyzing trace with hash 658614564, now seen corresponding path program 1 times [2022-11-16 16:23:56,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:23:56,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754114220] [2022-11-16 16:23:56,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:23:56,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:23:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:23:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:23:57,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:23:57,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754114220] [2022-11-16 16:23:57,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754114220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:23:57,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:23:57,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:23:57,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459036589] [2022-11-16 16:23:57,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:23:57,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 16:23:57,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:23:57,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 16:23:57,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 16:23:57,026 INFO L87 Difference]: Start difference. First operand 571 states and 1896 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:23:57,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:23:57,162 INFO L93 Difference]: Finished difference Result 559 states and 1876 transitions. [2022-11-16 16:23:57,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 16:23:57,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-16 16:23:57,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:23:57,163 INFO L225 Difference]: With dead ends: 559 [2022-11-16 16:23:57,163 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 16:23:57,164 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 [2022-11-16 16:23:57,164 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 71 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:23:57,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 8 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:23:57,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 16:23:57,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 16:23:57,166 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) [2022-11-16 16:23:57,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 16:23:57,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-16 16:23:57,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:23:57,167 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 16:23:57,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:23:57,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 16:23:57,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 16:23:57,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-16 16:23:57,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-16 16:23:57,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-16 16:23:57,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-16 16:23:57,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-16 16:23:57,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-16 16:23:57,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-16 16:23:57,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-16 16:23:57,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-16 16:23:57,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-16 16:23:57,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-16 16:23:57,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-16 16:23:57,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-16 16:23:57,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-16 16:23:57,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-16 16:23:57,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-16 16:23:57,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-16 16:23:57,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-16 16:23:57,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-16 16:23:57,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-16 16:23:57,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 16:23:57,181 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 16:23:57,187 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 16:23:57,187 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 16:23:57,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:23:57 BasicIcfg [2022-11-16 16:23:57,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 16:23:57,191 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 16:23:57,191 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 16:23:57,191 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 16:23:57,192 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:23:51" (3/4) ... [2022-11-16 16:23:57,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 16:23:57,200 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 16:23:57,201 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 16:23:57,202 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-16 16:23:57,202 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-16 16:23:57,208 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-16 16:23:57,209 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 16:23:57,209 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 16:23:57,209 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 16:23:57,251 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 16:23:57,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 16:23:57,252 INFO L158 Benchmark]: Toolchain (without parser) took 7620.22ms. Allocated memory was 104.9MB in the beginning and 172.0MB in the end (delta: 67.1MB). Free memory was 40.3MB in the beginning and 120.9MB in the end (delta: -80.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:23:57,252 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 104.9MB. Free memory was 58.0MB in the beginning and 58.0MB in the end (delta: 91.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:23:57,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 690.56ms. Allocated memory was 104.9MB in the beginning and 142.6MB in the end (delta: 37.7MB). Free memory was 40.1MB in the beginning and 104.9MB in the end (delta: -64.7MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-11-16 16:23:57,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.27ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 102.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:23:57,253 INFO L158 Benchmark]: Boogie Preprocessor took 25.23ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 101.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:23:57,254 INFO L158 Benchmark]: RCFGBuilder took 645.68ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 84.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 16:23:57,254 INFO L158 Benchmark]: TraceAbstraction took 6113.82ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 83.9MB in the beginning and 124.1MB in the end (delta: -40.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:23:57,255 INFO L158 Benchmark]: Witness Printer took 60.40ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 120.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 16:23:57,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 104.9MB. Free memory was 58.0MB in the beginning and 58.0MB in the end (delta: 91.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 690.56ms. Allocated memory was 104.9MB in the beginning and 142.6MB in the end (delta: 37.7MB). Free memory was 40.1MB in the beginning and 104.9MB in the end (delta: -64.7MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.27ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 102.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.23ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 101.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 645.68ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 84.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6113.82ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 83.9MB in the beginning and 124.1MB in the end (delta: -40.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 60.40ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 120.9MB 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: 3.7s, 125 PlacesBefore, 45 PlacesAfterwards, 114 TransitionsBefore, 32 TransitionsAfterwards, 3298 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 95 TotalNumberOfCompositions, 7361 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3996, independent: 3830, independent conditional: 0, independent unconditional: 3830, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2145, independent: 2106, independent conditional: 0, independent unconditional: 2106, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2145, independent: 2055, independent conditional: 0, independent unconditional: 2055, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 90, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 212, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3996, independent: 1724, independent conditional: 0, independent unconditional: 1724, dependent: 127, dependent conditional: 0, dependent unconditional: 127, unknown: 2145, unknown conditional: 0, unknown unconditional: 2145] , Statistics on independence cache: Total cache size (in pairs): 206, Positive cache size: 188, Positive conditional cache size: 0, Positive unconditional cache size: 188, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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: 736]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 736]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: 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, 151 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 199 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 199 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 302 IncrementalHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 24 mSDtfsCounter, 302 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=3131occurred 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: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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! [2022-11-16 16:23:57,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618a2d3e-fc4e-4cc1-9162-e0b27528b39a/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE