./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a11fa958d4124f3116e26376dc48ac068d06e85 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:11:18,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:11:18,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:11:18,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:11:18,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:11:18,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:11:18,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:11:18,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:11:18,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:11:18,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:11:18,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:11:18,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:11:18,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:11:18,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:11:18,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:11:18,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:11:18,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:11:18,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:11:18,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:11:18,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:11:18,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:11:18,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:11:18,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:11:18,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:11:18,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:11:18,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:11:18,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:11:18,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:11:18,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:11:18,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:11:18,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:11:18,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:11:18,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:11:18,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:11:18,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:11:18,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:11:18,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:11:18,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:11:18,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:11:18,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:11:18,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:11:18,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:11:18,501 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:11:18,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:11:18,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:11:18,502 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:11:18,502 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:11:18,502 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:11:18,503 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:11:18,503 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:11:18,503 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:11:18,503 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:11:18,503 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:11:18,503 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:11:18,504 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:11:18,504 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:11:18,504 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:11:18,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:11:18,505 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:11:18,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:11:18,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:11:18,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:11:18,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:11:18,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:11:18,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:11:18,506 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:11:18,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:11:18,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:11:18,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:11:18,507 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:11:18,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:11:18,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:11:18,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:11:18,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:11:18,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:11:18,508 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:11:18,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:11:18,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:11:18,508 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:11:18,509 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b2373570-ee52-4dc2-a633-3996698e1776/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(__VERIFIER_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 -> 0a11fa958d4124f3116e26376dc48ac068d06e85 [2019-11-26 02:11:18,684 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:11:18,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:11:18,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:11:18,704 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:11:18,705 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:11:18,705 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i [2019-11-26 02:11:18,763 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan/data/a6a5aef07/360f0adc0e094fd4a406f94b40f27422/FLAG31ea0594d [2019-11-26 02:11:19,209 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:11:19,210 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i [2019-11-26 02:11:19,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan/data/a6a5aef07/360f0adc0e094fd4a406f94b40f27422/FLAG31ea0594d [2019-11-26 02:11:19,727 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan/data/a6a5aef07/360f0adc0e094fd4a406f94b40f27422 [2019-11-26 02:11:19,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:11:19,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:11:19,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:11:19,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:11:19,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:11:19,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142503a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:19, skipping insertion in model container [2019-11-26 02:11:19,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:11:19" (1/1) ... [2019-11-26 02:11:19,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:11:19,805 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:11:20,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:11:20,240 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:11:20,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:11:20,362 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:11:20,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20 WrapperNode [2019-11-26 02:11:20,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:11:20,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:11:20,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:11:20,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:11:20,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20" (1/1) ... [2019-11-26 02:11:20,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20" (1/1) ... [2019-11-26 02:11:20,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:11:20,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:11:20,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:11:20,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:11:20,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20" (1/1) ... [2019-11-26 02:11:20,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20" (1/1) ... [2019-11-26 02:11:20,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20" (1/1) ... [2019-11-26 02:11:20,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20" (1/1) ... [2019-11-26 02:11:20,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20" (1/1) ... [2019-11-26 02:11:20,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20" (1/1) ... [2019-11-26 02:11:20,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20" (1/1) ... [2019-11-26 02:11:20,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:11:20,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:11:20,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:11:20,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:11:20,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/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 [2019-11-26 02:11:20,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:11:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:11:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:11:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:11:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:11:20,515 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:11:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:11:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:11:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:11:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:11:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:11:20,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:11:20,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:11:20,520 WARN L202 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:11:20,879 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:11:20,879 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:11:20,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:20 BoogieIcfgContainer [2019-11-26 02:11:20,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:11:20,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:11:20,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:11:20,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:11:20,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:11:19" (1/3) ... [2019-11-26 02:11:20,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edc4f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:11:20, skipping insertion in model container [2019-11-26 02:11:20,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:11:20" (2/3) ... [2019-11-26 02:11:20,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edc4f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:11:20, skipping insertion in model container [2019-11-26 02:11:20,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:20" (3/3) ... [2019-11-26 02:11:20,887 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_tso.opt.i [2019-11-26 02:11:20,970 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,972 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,972 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,972 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,972 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,973 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,973 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,973 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,974 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,974 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,974 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,974 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,975 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,975 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,975 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,976 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,976 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,976 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,977 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,977 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,977 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,977 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,978 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,978 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,978 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,978 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,979 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,979 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,979 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,980 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,980 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,981 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,981 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,982 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,982 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,983 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,983 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,983 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,983 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,984 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,984 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,984 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,987 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,987 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,987 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,987 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,987 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,988 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,988 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,988 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,989 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,989 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,989 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:20,989 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:11:21,032 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:11:21,032 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:11:21,038 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:11:21,049 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:11:21,066 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:11:21,066 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:11:21,066 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:11:21,067 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:11:21,067 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:11:21,067 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:11:21,067 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:11:21,067 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:11:21,080 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-26 02:11:21,226 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-11-26 02:11:21,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-11-26 02:11:21,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:11:21,250 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:21,250 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:21,251 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:21,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:21,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1319347996, now seen corresponding path program 1 times [2019-11-26 02:11:21,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:21,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767239638] [2019-11-26 02:11:21,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:11:21,570 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767239638] [2019-11-26 02:11:21,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:21,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:11:21,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026752850] [2019-11-26 02:11:21,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:11:21,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:21,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:11:21,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:11:21,591 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-11-26 02:11:21,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:21,803 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-11-26 02:11:21,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:11:21,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-26 02:11:21,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:21,827 INFO L225 Difference]: With dead ends: 1295 [2019-11-26 02:11:21,827 INFO L226 Difference]: Without dead ends: 601 [2019-11-26 02:11:21,829 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:11:21,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-11-26 02:11:21,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-11-26 02:11:21,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-11-26 02:11:21,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-11-26 02:11:21,919 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-11-26 02:11:21,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:21,920 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-11-26 02:11:21,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:11:21,920 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-11-26 02:11:21,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:11:21,924 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:21,924 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:21,924 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:21,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:21,925 INFO L82 PathProgramCache]: Analyzing trace with hash 666658618, now seen corresponding path program 1 times [2019-11-26 02:11:21,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:21,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532487575] [2019-11-26 02:11:21,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:22,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:11:22,054 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532487575] [2019-11-26 02:11:22,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:22,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:11:22,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062619494] [2019-11-26 02:11:22,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:11:22,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:22,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:11:22,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:11:22,058 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-11-26 02:11:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:22,149 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-11-26 02:11:22,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:11:22,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-26 02:11:22,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:22,159 INFO L225 Difference]: With dead ends: 601 [2019-11-26 02:11:22,164 INFO L226 Difference]: Without dead ends: 538 [2019-11-26 02:11:22,165 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:11:22,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-26 02:11:22,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-26 02:11:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-26 02:11:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-11-26 02:11:22,214 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-11-26 02:11:22,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:22,214 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-11-26 02:11:22,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:11:22,215 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-11-26 02:11:22,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:11:22,217 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:22,217 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:22,217 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:22,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:22,218 INFO L82 PathProgramCache]: Analyzing trace with hash 185427020, now seen corresponding path program 1 times [2019-11-26 02:11:22,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:22,218 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711632469] [2019-11-26 02:11:22,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:22,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:11:22,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711632469] [2019-11-26 02:11:22,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:22,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:11:22,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574994348] [2019-11-26 02:11:22,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:11:22,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:22,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:11:22,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:11:22,349 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-11-26 02:11:22,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:22,451 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-11-26 02:11:22,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:11:22,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-26 02:11:22,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:22,455 INFO L225 Difference]: With dead ends: 403 [2019-11-26 02:11:22,455 INFO L226 Difference]: Without dead ends: 349 [2019-11-26 02:11:22,456 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:11:22,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-11-26 02:11:22,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-11-26 02:11:22,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-26 02:11:22,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-11-26 02:11:22,474 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-11-26 02:11:22,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:22,475 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-11-26 02:11:22,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:11:22,475 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-11-26 02:11:22,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:11:22,477 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:22,477 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:22,477 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:22,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:22,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1064457710, now seen corresponding path program 1 times [2019-11-26 02:11:22,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:22,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604274604] [2019-11-26 02:11:22,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:11:22,679 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604274604] [2019-11-26 02:11:22,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:22,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:11:22,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757467196] [2019-11-26 02:11:22,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:11:22,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:22,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:11:22,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:11:22,681 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-11-26 02:11:22,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:22,814 INFO L93 Difference]: Finished difference Result 520 states and 1395 transitions. [2019-11-26 02:11:22,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:11:22,815 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-26 02:11:22,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:22,817 INFO L225 Difference]: With dead ends: 520 [2019-11-26 02:11:22,818 INFO L226 Difference]: Without dead ends: 277 [2019-11-26 02:11:22,818 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:11:22,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2019-11-26 02:11:22,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2019-11-26 02:11:22,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-11-26 02:11:22,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 726 transitions. [2019-11-26 02:11:22,832 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 726 transitions. Word has length 34 [2019-11-26 02:11:22,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:22,832 INFO L462 AbstractCegarLoop]: Abstraction has 277 states and 726 transitions. [2019-11-26 02:11:22,833 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:11:22,833 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 726 transitions. [2019-11-26 02:11:22,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:11:22,837 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:22,838 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:22,838 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:22,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:22,839 INFO L82 PathProgramCache]: Analyzing trace with hash -709744908, now seen corresponding path program 2 times [2019-11-26 02:11:22,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:22,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766617654] [2019-11-26 02:11:22,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:22,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:11:22,997 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766617654] [2019-11-26 02:11:22,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:22,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:11:22,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674640738] [2019-11-26 02:11:22,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:11:22,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:22,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:11:22,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:11:22,999 INFO L87 Difference]: Start difference. First operand 277 states and 726 transitions. Second operand 7 states. [2019-11-26 02:11:23,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:23,149 INFO L93 Difference]: Finished difference Result 439 states and 1185 transitions. [2019-11-26 02:11:23,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:11:23,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-26 02:11:23,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:23,153 INFO L225 Difference]: With dead ends: 439 [2019-11-26 02:11:23,153 INFO L226 Difference]: Without dead ends: 253 [2019-11-26 02:11:23,153 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:11:23,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-11-26 02:11:23,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-11-26 02:11:23,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-11-26 02:11:23,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-11-26 02:11:23,164 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-11-26 02:11:23,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:23,164 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-11-26 02:11:23,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:11:23,165 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-11-26 02:11:23,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:11:23,166 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:11:23,166 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:11:23,168 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:11:23,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:11:23,168 INFO L82 PathProgramCache]: Analyzing trace with hash -391810358, now seen corresponding path program 3 times [2019-11-26 02:11:23,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:11:23,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637876340] [2019-11-26 02:11:23,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:11:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:11:23,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:11:23,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637876340] [2019-11-26 02:11:23,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:11:23,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:11:23,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209641303] [2019-11-26 02:11:23,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:11:23,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:11:23,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:11:23,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:11:23,327 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-11-26 02:11:23,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:11:23,438 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-11-26 02:11:23,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:11:23,438 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-26 02:11:23,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:11:23,438 INFO L225 Difference]: With dead ends: 199 [2019-11-26 02:11:23,439 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:11:23,439 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:11:23,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:11:23,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:11:23,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:11:23,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:11:23,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-26 02:11:23,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:11:23,440 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:11:23,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:11:23,440 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:11:23,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:11:23,443 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:11:23,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:11:23 BasicIcfg [2019-11-26 02:11:23,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:11:23,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:11:23,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:11:23,447 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:11:23,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:11:20" (3/4) ... [2019-11-26 02:11:23,451 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:11:23,460 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:11:23,460 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:11:23,460 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:11:23,488 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:11:23,488 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:11:23,488 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:11:23,540 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b2373570-ee52-4dc2-a633-3996698e1776/bin/utaipan/witness.graphml [2019-11-26 02:11:23,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:11:23,545 INFO L168 Benchmark]: Toolchain (without parser) took 3814.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -146.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:11:23,546 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:11:23,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:23,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:11:23,547 INFO L168 Benchmark]: Boogie Preprocessor took 24.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:11:23,553 INFO L168 Benchmark]: RCFGBuilder took 448.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:23,554 INFO L168 Benchmark]: TraceAbstraction took 2565.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -13.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:11:23,554 INFO L168 Benchmark]: Witness Printer took 95.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:11:23,556 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 632.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 448.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2565.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -13.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 95.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 13 procedures, 90 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 288 SDtfs, 427 SDslu, 757 SDs, 0 SdLazy, 120 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 19560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...