./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/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 e6ac324937dcb830ded2162c28c92a3a84b747b3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:29:57,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:29:57,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:29:58,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:29:58,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:29:58,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:29:58,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:29:58,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:29:58,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:29:58,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:29:58,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:29:58,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:29:58,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:29:58,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:29:58,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:29:58,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:29:58,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:29:58,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:29:58,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:29:58,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:29:58,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:29:58,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:29:58,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:29:58,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:29:58,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:29:58,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:29:58,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:29:58,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:29:58,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:29:58,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:29:58,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:29:58,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:29:58,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:29:58,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:29:58,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:29:58,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:29:58,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:29:58,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:29:58,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:29:58,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:29:58,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:29:58,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 14:29:58,037 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:29:58,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:29:58,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:29:58,038 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:29:58,038 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:29:58,038 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:29:58,039 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 14:29:58,039 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:29:58,039 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:29:58,039 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 14:29:58,039 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 14:29:58,039 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:29:58,039 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 14:29:58,040 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 14:29:58,040 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 14:29:58,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:29:58,040 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:29:58,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:29:58,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:29:58,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:29:58,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:29:58,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:29:58,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:29:58,041 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:29:58,041 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:29:58,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:29:58,042 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:29:58,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:29:58,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:29:58,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:29:58,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:29:58,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:29:58,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:29:58,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:29:58,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:29:58,043 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 14:29:58,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:29:58,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:29:58,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:29:58,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:29:58,044 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_7d9711d9-7209-4106-8a04-719d85753744/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 -> e6ac324937dcb830ded2162c28c92a3a84b747b3 [2019-12-07 14:29:58,146 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:29:58,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:29:58,159 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:29:58,160 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:29:58,161 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:29:58,161 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i [2019-12-07 14:29:58,199 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/bin/utaipan/data/a85e69b68/e7f5a834ae8545e3be3caa998b27cd38/FLAGbb3e79c7d [2019-12-07 14:29:58,669 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:29:58,669 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i [2019-12-07 14:29:58,679 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/bin/utaipan/data/a85e69b68/e7f5a834ae8545e3be3caa998b27cd38/FLAGbb3e79c7d [2019-12-07 14:29:58,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/bin/utaipan/data/a85e69b68/e7f5a834ae8545e3be3caa998b27cd38 [2019-12-07 14:29:58,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:29:58,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:29:58,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:29:58,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:29:58,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:29:58,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:29:58" (1/1) ... [2019-12-07 14:29:58,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e8c8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:58, skipping insertion in model container [2019-12-07 14:29:58,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:29:58" (1/1) ... [2019-12-07 14:29:58,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:29:58,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:29:58,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:29:58,952 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:29:58,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:29:59,030 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:29:59,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59 WrapperNode [2019-12-07 14:29:59,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:29:59,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:29:59,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:29:59,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:29:59,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59" (1/1) ... [2019-12-07 14:29:59,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59" (1/1) ... [2019-12-07 14:29:59,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:29:59,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:29:59,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:29:59,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:29:59,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59" (1/1) ... [2019-12-07 14:29:59,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59" (1/1) ... [2019-12-07 14:29:59,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59" (1/1) ... [2019-12-07 14:29:59,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59" (1/1) ... [2019-12-07 14:29:59,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59" (1/1) ... [2019-12-07 14:29:59,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59" (1/1) ... [2019-12-07 14:29:59,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59" (1/1) ... [2019-12-07 14:29:59,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:29:59,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:29:59,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:29:59,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:29:59,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/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 [2019-12-07 14:29:59,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:29:59,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-07 14:29:59,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:29:59,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:29:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-07 14:29:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-07 14:29:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-07 14:29:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-07 14:29:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-07 14:29:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-07 14:29:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-07 14:29:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:29:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:29:59,120 WARN L205 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 14:29:59,288 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:29:59,289 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 14:29:59,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:29:59 BoogieIcfgContainer [2019-12-07 14:29:59,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:29:59,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:29:59,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:29:59,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:29:59,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:29:58" (1/3) ... [2019-12-07 14:29:59,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311529f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:29:59, skipping insertion in model container [2019-12-07 14:29:59,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:29:59" (2/3) ... [2019-12-07 14:29:59,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311529f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:29:59, skipping insertion in model container [2019-12-07 14:29:59,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:29:59" (3/3) ... [2019-12-07 14:29:59,295 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2019-12-07 14:29:59,301 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 14:29:59,301 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:29:59,305 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:29:59,306 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 14:29:59,323 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,323 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,323 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,323 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,324 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,324 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,324 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,324 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,324 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,325 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,325 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,325 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,325 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,326 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,326 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,326 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,326 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,326 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:29:59,342 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 14:29:59,354 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:29:59,354 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:29:59,354 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:29:59,354 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:29:59,354 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:29:59,354 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:29:59,354 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:29:59,355 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:29:59,363 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-07 14:29:59,364 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-07 14:29:59,389 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-07 14:29:59,389 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 14:29:59,394 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 14:29:59,395 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-07 14:29:59,405 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-07 14:29:59,405 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 14:29:59,406 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 14:29:59,407 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-07 14:29:59,408 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 14:30:00,115 INFO L206 etLargeBlockEncoding]: Checked pairs total: 507 [2019-12-07 14:30:00,115 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-07 14:30:00,118 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-07 14:30:00,125 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-07 14:30:00,127 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-07 14:30:00,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 14:30:00,131 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:30:00,132 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:00,132 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:30:00,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:00,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1331014227, now seen corresponding path program 1 times [2019-12-07 14:30:00,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:30:00,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831173981] [2019-12-07 14:30:00,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:30:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:30:00,324 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831173981] [2019-12-07 14:30:00,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:30:00,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:30:00,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564252012] [2019-12-07 14:30:00,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:30:00,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:30:00,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:30:00,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:30:00,340 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-12-07 14:30:00,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:30:00,383 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-12-07 14:30:00,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:30:00,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 14:30:00,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:30:00,392 INFO L225 Difference]: With dead ends: 58 [2019-12-07 14:30:00,392 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 14:30:00,393 INFO L630 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 [2019-12-07 14:30:00,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 14:30:00,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 14:30:00,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 14:30:00,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-12-07 14:30:00,416 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-12-07 14:30:00,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:30:00,417 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-12-07 14:30:00,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:30:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-12-07 14:30:00,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 14:30:00,417 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:30:00,417 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:00,418 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:30:00,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:00,418 INFO L82 PathProgramCache]: Analyzing trace with hash 660414012, now seen corresponding path program 1 times [2019-12-07 14:30:00,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:30:00,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568376717] [2019-12-07 14:30:00,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:30:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:30:00,479 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568376717] [2019-12-07 14:30:00,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:30:00,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:30:00,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138725856] [2019-12-07 14:30:00,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:30:00,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:30:00,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:30:00,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:30:00,481 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-12-07 14:30:00,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:30:00,519 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-12-07 14:30:00,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:30:00,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-07 14:30:00,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:30:00,520 INFO L225 Difference]: With dead ends: 37 [2019-12-07 14:30:00,521 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 14:30:00,521 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:30:00,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 14:30:00,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 14:30:00,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 14:30:00,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-12-07 14:30:00,526 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-12-07 14:30:00,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:30:00,526 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-12-07 14:30:00,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:30:00,527 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-12-07 14:30:00,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 14:30:00,527 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:30:00,527 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:00,527 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:30:00,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:00,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1003717118, now seen corresponding path program 1 times [2019-12-07 14:30:00,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:30:00,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792335993] [2019-12-07 14:30:00,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:30:00,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:30:00,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792335993] [2019-12-07 14:30:00,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:30:00,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 14:30:00,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755255403] [2019-12-07 14:30:00,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:30:00,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:30:00,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:30:00,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:30:00,584 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 3 states. [2019-12-07 14:30:00,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:30:00,589 INFO L93 Difference]: Finished difference Result 29 states and 48 transitions. [2019-12-07 14:30:00,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:30:00,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 14:30:00,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:30:00,590 INFO L225 Difference]: With dead ends: 29 [2019-12-07 14:30:00,590 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 14:30:00,590 INFO L630 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 [2019-12-07 14:30:00,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 14:30:00,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 14:30:00,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 14:30:00,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 48 transitions. [2019-12-07 14:30:00,593 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 48 transitions. Word has length 10 [2019-12-07 14:30:00,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:30:00,594 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 48 transitions. [2019-12-07 14:30:00,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:30:00,594 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2019-12-07 14:30:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 14:30:00,594 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:30:00,594 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:00,595 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:30:00,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:00,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1001953683, now seen corresponding path program 1 times [2019-12-07 14:30:00,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:30:00,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036511564] [2019-12-07 14:30:00,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:30:00,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:30:00,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036511564] [2019-12-07 14:30:00,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:30:00,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 14:30:00,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216986143] [2019-12-07 14:30:00,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:30:00,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:30:00,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:30:00,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:30:00,648 INFO L87 Difference]: Start difference. First operand 29 states and 48 transitions. Second operand 6 states. [2019-12-07 14:30:00,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:30:00,689 INFO L93 Difference]: Finished difference Result 28 states and 44 transitions. [2019-12-07 14:30:00,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:30:00,689 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-07 14:30:00,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:30:00,690 INFO L225 Difference]: With dead ends: 28 [2019-12-07 14:30:00,690 INFO L226 Difference]: Without dead ends: 24 [2019-12-07 14:30:00,690 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:30:00,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-07 14:30:00,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-07 14:30:00,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-07 14:30:00,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-12-07 14:30:00,693 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-12-07 14:30:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:30:00,693 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-12-07 14:30:00,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:30:00,693 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-12-07 14:30:00,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 14:30:00,693 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:30:00,693 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:00,693 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:30:00,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:00,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1050411161, now seen corresponding path program 1 times [2019-12-07 14:30:00,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:30:00,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551390788] [2019-12-07 14:30:00,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:30:00,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:30:00,722 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551390788] [2019-12-07 14:30:00,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:30:00,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:30:00,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092512321] [2019-12-07 14:30:00,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:30:00,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:30:00,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:30:00,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:30:00,723 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 3 states. [2019-12-07 14:30:00,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:30:00,730 INFO L93 Difference]: Finished difference Result 27 states and 40 transitions. [2019-12-07 14:30:00,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:30:00,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-07 14:30:00,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:30:00,731 INFO L225 Difference]: With dead ends: 27 [2019-12-07 14:30:00,731 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 14:30:00,731 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:30:00,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 14:30:00,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 14:30:00,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 14:30:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-07 14:30:00,733 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-12-07 14:30:00,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:30:00,734 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-07 14:30:00,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:30:00,734 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-07 14:30:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 14:30:00,734 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:30:00,734 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:00,734 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:30:00,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:00,734 INFO L82 PathProgramCache]: Analyzing trace with hash -539824735, now seen corresponding path program 2 times [2019-12-07 14:30:00,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:30:00,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325027452] [2019-12-07 14:30:00,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:30:00,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:30:00,772 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325027452] [2019-12-07 14:30:00,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:30:00,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:30:00,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392225252] [2019-12-07 14:30:00,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:30:00,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:30:00,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:30:00,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:30:00,773 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2019-12-07 14:30:00,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:30:00,779 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-12-07 14:30:00,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:30:00,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-07 14:30:00,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:30:00,780 INFO L225 Difference]: With dead ends: 19 [2019-12-07 14:30:00,780 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 14:30:00,780 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:30:00,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 14:30:00,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 14:30:00,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 14:30:00,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-07 14:30:00,782 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-07 14:30:00,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:30:00,782 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-07 14:30:00,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:30:00,782 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-07 14:30:00,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 14:30:00,782 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:30:00,782 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:30:00,783 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:30:00,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:30:00,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1154543195, now seen corresponding path program 3 times [2019-12-07 14:30:00,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:30:00,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45799845] [2019-12-07 14:30:00,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:30:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:30:00,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:30:00,823 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45799845] [2019-12-07 14:30:00,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:30:00,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:30:00,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603263011] [2019-12-07 14:30:00,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:30:00,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:30:00,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:30:00,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:30:00,824 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 5 states. [2019-12-07 14:30:00,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:30:00,833 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-07 14:30:00,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:30:00,833 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-07 14:30:00,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:30:00,833 INFO L225 Difference]: With dead ends: 11 [2019-12-07 14:30:00,833 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 14:30:00,834 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:30:00,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 14:30:00,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 14:30:00,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 14:30:00,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 14:30:00,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-07 14:30:00,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:30:00,834 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:30:00,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:30:00,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:30:00,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 14:30:00,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:30:00 BasicIcfg [2019-12-07 14:30:00,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:30:00,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:30:00,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:30:00,838 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:30:00,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:29:59" (3/4) ... [2019-12-07 14:30:00,840 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 14:30:00,845 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-12-07 14:30:00,845 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-12-07 14:30:00,846 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-12-07 14:30:00,849 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 14:30:00,849 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 14:30:00,849 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 14:30:00,884 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7d9711d9-7209-4106-8a04-719d85753744/bin/utaipan/witness.graphml [2019-12-07 14:30:00,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:30:00,886 INFO L168 Benchmark]: Toolchain (without parser) took 2194.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 942.5 MB in the beginning and 1.0 GB in the end (delta: -98.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:30:00,886 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:30:00,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -137.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:30:00,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:30:00,887 INFO L168 Benchmark]: Boogie Preprocessor took 16.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:30:00,888 INFO L168 Benchmark]: RCFGBuilder took 211.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:30:00,888 INFO L168 Benchmark]: TraceAbstraction took 1546.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:30:00,888 INFO L168 Benchmark]: Witness Printer took 46.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:30:00,890 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 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 339.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -137.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 211.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1546.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * Witness Printer took 46.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 249 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 507 CheckedPairsTotal, 44 TotalNumberOfCompositions - 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 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 68 SDslu, 45 SDs, 0 SdLazy, 53 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 1997 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...