./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin001_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin001_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d55a4f14ea7c1bbc15f911f5cd2399be61506ea2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:12:36,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:12:36,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:12:36,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:12:36,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:12:36,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:12:36,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:12:36,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:12:36,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:12:36,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:12:36,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:12:36,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:12:36,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:12:36,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:12:36,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:12:36,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:12:36,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:12:36,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:12:36,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:12:36,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:12:36,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:12:36,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:12:36,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:12:36,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:12:36,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:12:36,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:12:36,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:12:36,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:12:36,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:12:36,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:12:36,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:12:36,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:12:36,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:12:36,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:12:36,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:12:36,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:12:36,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:12:36,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:12:36,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:12:36,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:12:36,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:12:36,370 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:12:36,410 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:12:36,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:12:36,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:12:36,412 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:12:36,412 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:12:36,413 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:12:36,413 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:12:36,413 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:12:36,413 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:12:36,414 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:12:36,415 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:12:36,415 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:12:36,416 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:12:36,416 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:12:36,416 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:12:36,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:12:36,417 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:12:36,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:12:36,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:12:36,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:12:36,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:12:36,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:12:36,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:12:36,420 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:12:36,420 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:12:36,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:12:36,420 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:12:36,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:12:36,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:12:36,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:12:36,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:12:36,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:12:36,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:12:36,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:12:36,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:12:36,425 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:12:36,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:12:36,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:12:36,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:12:36,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:12:36,427 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d55a4f14ea7c1bbc15f911f5cd2399be61506ea2 [2020-11-30 02:12:36,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:12:36,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:12:36,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:12:36,785 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:12:36,786 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:12:36,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/thin001_pso.opt.i [2020-11-30 02:12:36,862 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/data/d4b969e3f/7a08f798292247e4ab9e6e2cf047f324/FLAG3f324414f [2020-11-30 02:12:37,481 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:12:37,491 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/sv-benchmarks/c/pthread-wmm/thin001_pso.opt.i [2020-11-30 02:12:37,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/data/d4b969e3f/7a08f798292247e4ab9e6e2cf047f324/FLAG3f324414f [2020-11-30 02:12:37,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/data/d4b969e3f/7a08f798292247e4ab9e6e2cf047f324 [2020-11-30 02:12:37,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:12:37,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:12:37,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:12:37,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:12:37,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:12:37,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:12:37" (1/1) ... [2020-11-30 02:12:37,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3771f2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:37, skipping insertion in model container [2020-11-30 02:12:37,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:12:37" (1/1) ... [2020-11-30 02:12:37,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:12:37,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:12:38,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:12:38,325 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:12:38,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:12:38,448 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:12:38,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38 WrapperNode [2020-11-30 02:12:38,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:12:38,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:12:38,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:12:38,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:12:38,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38" (1/1) ... [2020-11-30 02:12:38,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38" (1/1) ... [2020-11-30 02:12:38,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:12:38,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:12:38,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:12:38,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:12:38,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38" (1/1) ... [2020-11-30 02:12:38,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38" (1/1) ... [2020-11-30 02:12:38,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38" (1/1) ... [2020-11-30 02:12:38,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38" (1/1) ... [2020-11-30 02:12:38,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38" (1/1) ... [2020-11-30 02:12:38,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38" (1/1) ... [2020-11-30 02:12:38,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38" (1/1) ... [2020-11-30 02:12:38,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:12:38,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:12:38,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:12:38,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:12:38,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:12:38,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 02:12:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-30 02:12:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:12:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:12:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-30 02:12:38,638 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-30 02:12:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-30 02:12:38,638 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-30 02:12:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-30 02:12:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-30 02:12:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:12:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-30 02:12:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:12:38,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:12:38,643 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-30 02:12:39,192 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:12:39,195 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 02:12:39,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:12:39 BoogieIcfgContainer [2020-11-30 02:12:39,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:12:39,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:12:39,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:12:39,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:12:39,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:12:37" (1/3) ... [2020-11-30 02:12:39,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1633d7ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:12:39, skipping insertion in model container [2020-11-30 02:12:39,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:38" (2/3) ... [2020-11-30 02:12:39,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1633d7ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:12:39, skipping insertion in model container [2020-11-30 02:12:39,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:12:39" (3/3) ... [2020-11-30 02:12:39,206 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_pso.opt.i [2020-11-30 02:12:39,218 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 02:12:39,218 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:12:39,223 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:12:39,224 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 02:12:39,271 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,271 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,272 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,273 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,274 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,274 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,276 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,276 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,278 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,278 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,279 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,279 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,283 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,283 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,299 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,299 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,299 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,299 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,303 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,303 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,303 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,303 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:12:39,307 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-30 02:12:39,318 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-30 02:12:39,355 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:12:39,355 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:12:39,355 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:12:39,356 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:12:39,356 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:12:39,356 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:12:39,356 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:12:39,356 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:12:39,374 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 02:12:39,376 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-30 02:12:39,379 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-30 02:12:39,381 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-30 02:12:39,455 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-30 02:12:39,455 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-30 02:12:39,459 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-30 02:12:39,463 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-30 02:12:40,011 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-30 02:12:41,557 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-30 02:12:42,695 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-30 02:12:42,824 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-30 02:12:42,969 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-11-30 02:12:42,970 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-11-30 02:12:42,975 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-30 02:12:43,016 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-30 02:12:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-30 02:12:43,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:12:43,026 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:12:43,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:12:43,027 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:12:43,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:12:43,034 INFO L82 PathProgramCache]: Analyzing trace with hash -853874994, now seen corresponding path program 1 times [2020-11-30 02:12:43,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:12:43,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004831602] [2020-11-30 02:12:43,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:12:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:12:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:12:43,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004831602] [2020-11-30 02:12:43,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:12:43,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 02:12:43,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583574560] [2020-11-30 02:12:43,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:12:43,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:12:43,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:12:43,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:12:43,288 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-30 02:12:43,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:12:43,352 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-30 02:12:43,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:12:43,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-30 02:12:43,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:12:43,375 INFO L225 Difference]: With dead ends: 282 [2020-11-30 02:12:43,375 INFO L226 Difference]: Without dead ends: 218 [2020-11-30 02:12:43,378 INFO L677 BasicCegarLoop]: 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 [2020-11-30 02:12:43,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-30 02:12:43,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-30 02:12:43,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-30 02:12:43,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-30 02:12:43,469 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-30 02:12:43,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:12:43,470 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-30 02:12:43,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:12:43,470 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-30 02:12:43,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:12:43,472 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:12:43,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:12:43,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:12:43,472 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:12:43,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:12:43,473 INFO L82 PathProgramCache]: Analyzing trace with hash -700352928, now seen corresponding path program 1 times [2020-11-30 02:12:43,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:12:43,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605120191] [2020-11-30 02:12:43,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:12:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:12:43,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:12:43,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605120191] [2020-11-30 02:12:43,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:12:43,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:12:43,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961576359] [2020-11-30 02:12:43,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:12:43,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:12:43,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:12:43,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:12:43,592 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-11-30 02:12:43,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:12:43,689 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-11-30 02:12:43,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:12:43,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-30 02:12:43,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:12:43,692 INFO L225 Difference]: With dead ends: 242 [2020-11-30 02:12:43,692 INFO L226 Difference]: Without dead ends: 146 [2020-11-30 02:12:43,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:12:43,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-30 02:12:43,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-30 02:12:43,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-30 02:12:43,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-11-30 02:12:43,718 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-11-30 02:12:43,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:12:43,718 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-11-30 02:12:43,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:12:43,719 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-11-30 02:12:43,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:12:43,722 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:12:43,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:12:43,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:12:43,723 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:12:43,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:12:43,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2063010818, now seen corresponding path program 1 times [2020-11-30 02:12:43,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:12:43,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916115021] [2020-11-30 02:12:43,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:12:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:12:43,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:12:43,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916115021] [2020-11-30 02:12:43,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:12:43,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 02:12:43,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953957304] [2020-11-30 02:12:43,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:12:43,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:12:43,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:12:43,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:12:43,817 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-11-30 02:12:43,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:12:43,836 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-11-30 02:12:43,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:12:43,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-30 02:12:43,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:12:43,842 INFO L225 Difference]: With dead ends: 140 [2020-11-30 02:12:43,842 INFO L226 Difference]: Without dead ends: 140 [2020-11-30 02:12:43,842 INFO L677 BasicCegarLoop]: 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 [2020-11-30 02:12:43,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-30 02:12:43,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-11-30 02:12:43,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-30 02:12:43,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 343 transitions. [2020-11-30 02:12:43,854 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 343 transitions. Word has length 11 [2020-11-30 02:12:43,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:12:43,855 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 343 transitions. [2020-11-30 02:12:43,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:12:43,855 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-11-30 02:12:43,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 02:12:43,856 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:12:43,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:12:43,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 02:12:43,857 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:12:43,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:12:43,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1374781277, now seen corresponding path program 1 times [2020-11-30 02:12:43,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:12:43,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152225075] [2020-11-30 02:12:43,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:12:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:12:43,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:12:43,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152225075] [2020-11-30 02:12:43,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:12:43,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:12:43,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688351557] [2020-11-30 02:12:43,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:12:43,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:12:43,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:12:43,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:12:43,914 INFO L87 Difference]: Start difference. First operand 140 states and 343 transitions. Second operand 4 states. [2020-11-30 02:12:43,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:12:43,939 INFO L93 Difference]: Finished difference Result 158 states and 376 transitions. [2020-11-30 02:12:43,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:12:43,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-30 02:12:43,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:12:43,941 INFO L225 Difference]: With dead ends: 158 [2020-11-30 02:12:43,941 INFO L226 Difference]: Without dead ends: 68 [2020-11-30 02:12:43,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:12:43,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-30 02:12:43,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-30 02:12:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-30 02:12:43,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-11-30 02:12:43,947 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-11-30 02:12:43,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:12:43,948 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-11-30 02:12:43,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:12:43,948 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-11-30 02:12:43,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 02:12:43,951 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:12:43,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:12:43,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 02:12:43,951 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:12:43,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:12:43,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1721558133, now seen corresponding path program 1 times [2020-11-30 02:12:43,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:12:43,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763014160] [2020-11-30 02:12:43,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:12:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:12:44,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:12:44,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763014160] [2020-11-30 02:12:44,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:12:44,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:12:44,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601837415] [2020-11-30 02:12:44,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:12:44,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:12:44,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:12:44,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:12:44,051 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-11-30 02:12:44,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:12:44,100 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-11-30 02:12:44,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:12:44,104 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 02:12:44,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:12:44,105 INFO L225 Difference]: With dead ends: 56 [2020-11-30 02:12:44,105 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:12:44,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:12:44,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:12:44,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:12:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:12:44,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:12:44,105 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-30 02:12:44,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:12:44,105 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:12:44,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:12:44,106 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:12:44,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:12:44,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 02:12:44,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:12:44 BasicIcfg [2020-11-30 02:12:44,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:12:44,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:12:44,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:12:44,110 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:12:44,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:12:39" (3/4) ... [2020-11-30 02:12:44,114 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:12:44,123 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-30 02:12:44,123 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-30 02:12:44,123 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-11-30 02:12:44,130 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-30 02:12:44,131 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 02:12:44,131 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:12:44,131 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:12:44,194 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4dbef32c-7209-4c28-8d0c-08a38f2bb267/bin/utaipan/witness.graphml [2020-11-30 02:12:44,195 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:12:44,196 INFO L168 Benchmark]: Toolchain (without parser) took 6309.44 ms. Allocated memory was 88.1 MB in the beginning and 148.9 MB in the end (delta: 60.8 MB). Free memory was 56.0 MB in the beginning and 80.2 MB in the end (delta: -24.2 MB). Peak memory consumption was 35.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:44,199 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 47.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:12:44,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.31 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 55.8 MB in the beginning and 73.0 MB in the end (delta: -17.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:44,203 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.82 ms. Allocated memory is still 117.4 MB. Free memory was 73.0 MB in the beginning and 71.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:44,204 INFO L168 Benchmark]: Boogie Preprocessor took 56.16 ms. Allocated memory is still 117.4 MB. Free memory was 70.9 MB in the beginning and 70.1 MB in the end (delta: 768.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:12:44,204 INFO L168 Benchmark]: RCFGBuilder took 637.32 ms. Allocated memory is still 117.4 MB. Free memory was 70.1 MB in the beginning and 47.8 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:44,206 INFO L168 Benchmark]: TraceAbstraction took 4910.55 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 47.2 MB in the beginning and 83.3 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:12:44,206 INFO L168 Benchmark]: Witness Printer took 85.50 ms. Allocated memory is still 148.9 MB. Free memory was 83.3 MB in the beginning and 80.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:44,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 47.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 561.31 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 55.8 MB in the beginning and 73.0 MB in the end (delta: -17.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.82 ms. Allocated memory is still 117.4 MB. Free memory was 73.0 MB in the beginning and 71.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.16 ms. Allocated memory is still 117.4 MB. Free memory was 70.9 MB in the beginning and 70.1 MB in the end (delta: 768.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 637.32 ms. Allocated memory is still 117.4 MB. Free memory was 70.1 MB in the beginning and 47.8 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4910.55 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 47.2 MB in the beginning and 83.3 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 85.50 ms. Allocated memory is still 148.9 MB. Free memory was 83.3 MB in the beginning and 80.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1074 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.5s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 81 SDtfs, 75 SDslu, 56 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1434 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...