./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe020_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_862012d1-8135-4b58-9df3-b8bc090fa955/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe020_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/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 292c8310df31104212c78575bcccd1c085aba02b ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:36:11,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:36:11,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:36:11,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:36:11,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:36:11,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:36:11,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:36:12,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:36:12,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:36:12,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:36:12,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:36:12,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:36:12,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:36:12,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:36:12,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:36:12,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:36:12,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:36:12,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:36:12,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:36:12,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:36:12,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:36:12,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:36:12,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:36:12,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:36:12,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:36:12,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:36:12,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:36:12,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:36:12,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:36:12,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:36:12,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:36:12,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:36:12,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:36:12,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:36:12,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:36:12,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:36:12,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:36:12,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:36:12,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:36:12,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:36:12,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:36:12,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:36:12,054 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:36:12,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:36:12,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:36:12,055 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:36:12,056 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:36:12,056 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:36:12,056 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:36:12,056 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:36:12,056 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:36:12,057 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:36:12,057 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:36:12,057 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:36:12,057 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:36:12,058 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:36:12,058 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:36:12,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:36:12,059 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:36:12,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:36:12,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:36:12,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:36:12,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:36:12,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:36:12,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:36:12,060 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:36:12,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:36:12,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:36:12,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:36:12,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:36:12,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:36:12,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:36:12,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:36:12,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:36:12,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:36:12,062 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:36:12,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:36:12,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:36:12,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:36:12,063 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_862012d1-8135-4b58-9df3-b8bc090fa955/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 -> 292c8310df31104212c78575bcccd1c085aba02b [2019-11-26 02:36:12,215 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:36:12,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:36:12,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:36:12,229 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:36:12,229 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:36:12,230 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe020_tso.opt.i [2019-11-26 02:36:12,278 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/bin/utaipan/data/9d80a50da/70d0e9b8994249868d98280803ccb36c/FLAG60d944ed5 [2019-11-26 02:36:12,770 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:36:12,771 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/sv-benchmarks/c/pthread-wmm/safe020_tso.opt.i [2019-11-26 02:36:12,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/bin/utaipan/data/9d80a50da/70d0e9b8994249868d98280803ccb36c/FLAG60d944ed5 [2019-11-26 02:36:13,249 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/bin/utaipan/data/9d80a50da/70d0e9b8994249868d98280803ccb36c [2019-11-26 02:36:13,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:36:13,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:36:13,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:13,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:36:13,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:36:13,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:13" (1/1) ... [2019-11-26 02:36:13,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de307c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13, skipping insertion in model container [2019-11-26 02:36:13,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:36:13" (1/1) ... [2019-11-26 02:36:13,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:36:13,309 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:36:13,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:13,704 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:36:13,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:36:13,847 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:36:13,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13 WrapperNode [2019-11-26 02:36:13,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:36:13,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:13,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:36:13,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:36:13,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13" (1/1) ... [2019-11-26 02:36:13,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13" (1/1) ... [2019-11-26 02:36:13,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:36:13,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:36:13,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:36:13,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:36:13,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13" (1/1) ... [2019-11-26 02:36:13,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13" (1/1) ... [2019-11-26 02:36:13,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13" (1/1) ... [2019-11-26 02:36:13,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13" (1/1) ... [2019-11-26 02:36:13,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13" (1/1) ... [2019-11-26 02:36:13,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13" (1/1) ... [2019-11-26 02:36:13,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13" (1/1) ... [2019-11-26 02:36:13,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:36:13,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:36:13,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:36:13,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:36:13,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/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 02:36:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:36:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:36:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:36:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:36:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:36:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:36:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:36:13,973 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:36:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:36:13,973 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:36:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:36:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:36:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:36:13,975 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 02:36:14,338 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:36:14,338 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:36:14,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:14 BoogieIcfgContainer [2019-11-26 02:36:14,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:36:14,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:36:14,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:36:14,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:36:14,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:36:13" (1/3) ... [2019-11-26 02:36:14,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e978517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:14, skipping insertion in model container [2019-11-26 02:36:14,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:36:13" (2/3) ... [2019-11-26 02:36:14,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e978517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:36:14, skipping insertion in model container [2019-11-26 02:36:14,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:14" (3/3) ... [2019-11-26 02:36:14,344 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_tso.opt.i [2019-11-26 02:36:14,386 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,386 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,387 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,387 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,387 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,387 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,387 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,388 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,388 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,388 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,388 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,388 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,389 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,389 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,389 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,389 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,389 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,389 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,390 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,390 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,390 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,390 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,390 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,391 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,391 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,391 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,391 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,391 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,392 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,392 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,392 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,392 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,392 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,392 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,393 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,393 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,393 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,393 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,393 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,394 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,394 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,394 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,394 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,394 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,395 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,395 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,395 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,395 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,395 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,396 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,396 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,396 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,396 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,396 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:36:14,418 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:36:14,418 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:36:14,426 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:36:14,436 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:36:14,455 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:36:14,455 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:36:14,455 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:36:14,455 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:36:14,456 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:36:14,456 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:36:14,456 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:36:14,456 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:36:14,469 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 74 transitions [2019-11-26 02:36:14,616 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-26 02:36:14,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-26 02:36:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-26 02:36:14,646 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:14,646 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] [2019-11-26 02:36:14,647 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:14,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:14,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1289340457, now seen corresponding path program 1 times [2019-11-26 02:36:14,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:14,661 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99321877] [2019-11-26 02:36:14,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:14,965 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 02:36:14,966 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99321877] [2019-11-26 02:36:14,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:14,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:36:14,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341892669] [2019-11-26 02:36:14,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:36:14,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:36:14,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:36:14,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:36:14,987 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-26 02:36:15,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:15,142 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-26 02:36:15,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:36:15,144 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-26 02:36:15,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:15,177 INFO L225 Difference]: With dead ends: 1294 [2019-11-26 02:36:15,178 INFO L226 Difference]: Without dead ends: 600 [2019-11-26 02:36:15,179 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 02:36:15,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-26 02:36:15,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-26 02:36:15,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-26 02:36:15,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-26 02:36:15,281 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-26 02:36:15,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:15,282 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-26 02:36:15,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:36:15,283 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-26 02:36:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:36:15,286 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:15,287 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 02:36:15,287 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:15,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1842768317, now seen corresponding path program 1 times [2019-11-26 02:36:15,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:15,289 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157327353] [2019-11-26 02:36:15,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:15,430 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 02:36:15,430 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157327353] [2019-11-26 02:36:15,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:15,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:36:15,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927337610] [2019-11-26 02:36:15,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:36:15,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:36:15,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:36:15,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:36:15,432 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-26 02:36:15,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:15,512 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-26 02:36:15,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:36:15,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-26 02:36:15,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:15,523 INFO L225 Difference]: With dead ends: 600 [2019-11-26 02:36:15,523 INFO L226 Difference]: Without dead ends: 537 [2019-11-26 02:36:15,524 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 02:36:15,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-26 02:36:15,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-26 02:36:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-26 02:36:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-26 02:36:15,555 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-26 02:36:15,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:15,555 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-26 02:36:15,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:36:15,555 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-26 02:36:15,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:36:15,557 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:15,557 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 02:36:15,557 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:15,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:15,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1327297235, now seen corresponding path program 1 times [2019-11-26 02:36:15,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:15,558 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608441363] [2019-11-26 02:36:15,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:15,674 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 02:36:15,674 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608441363] [2019-11-26 02:36:15,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:15,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:36:15,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587794637] [2019-11-26 02:36:15,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:36:15,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:36:15,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:36:15,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:36:15,676 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-26 02:36:15,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:15,771 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-26 02:36:15,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:36:15,772 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-26 02:36:15,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:15,776 INFO L225 Difference]: With dead ends: 402 [2019-11-26 02:36:15,776 INFO L226 Difference]: Without dead ends: 348 [2019-11-26 02:36:15,776 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:36:15,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-26 02:36:15,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-26 02:36:15,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-26 02:36:15,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-26 02:36:15,799 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-26 02:36:15,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:15,800 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-26 02:36:15,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:36:15,800 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-26 02:36:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:36:15,803 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:15,803 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 02:36:15,803 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:15,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:15,804 INFO L82 PathProgramCache]: Analyzing trace with hash -2025014583, now seen corresponding path program 1 times [2019-11-26 02:36:15,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:15,804 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180436766] [2019-11-26 02:36:15,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:15,952 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 02:36:15,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180436766] [2019-11-26 02:36:15,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:15,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:36:15,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460794205] [2019-11-26 02:36:15,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:36:15,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:36:15,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:36:15,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:36:15,954 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 6 states. [2019-11-26 02:36:16,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:16,049 INFO L93 Difference]: Finished difference Result 519 states and 1394 transitions. [2019-11-26 02:36:16,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:36:16,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-26 02:36:16,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:16,052 INFO L225 Difference]: With dead ends: 519 [2019-11-26 02:36:16,052 INFO L226 Difference]: Without dead ends: 276 [2019-11-26 02:36:16,053 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:36:16,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2019-11-26 02:36:16,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2019-11-26 02:36:16,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-11-26 02:36:16,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 725 transitions. [2019-11-26 02:36:16,064 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 725 transitions. Word has length 33 [2019-11-26 02:36:16,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:16,064 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 725 transitions. [2019-11-26 02:36:16,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:36:16,064 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 725 transitions. [2019-11-26 02:36:16,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:36:16,066 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:16,066 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 02:36:16,066 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:16,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:16,066 INFO L82 PathProgramCache]: Analyzing trace with hash -400335637, now seen corresponding path program 2 times [2019-11-26 02:36:16,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:16,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053731002] [2019-11-26 02:36:16,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:16,181 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 02:36:16,182 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053731002] [2019-11-26 02:36:16,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:16,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:36:16,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944620069] [2019-11-26 02:36:16,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:36:16,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:36:16,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:36:16,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:36:16,184 INFO L87 Difference]: Start difference. First operand 276 states and 725 transitions. Second operand 7 states. [2019-11-26 02:36:16,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:16,316 INFO L93 Difference]: Finished difference Result 438 states and 1184 transitions. [2019-11-26 02:36:16,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:36:16,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-26 02:36:16,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:16,318 INFO L225 Difference]: With dead ends: 438 [2019-11-26 02:36:16,319 INFO L226 Difference]: Without dead ends: 252 [2019-11-26 02:36:16,319 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 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 02:36:16,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-11-26 02:36:16,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2019-11-26 02:36:16,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-11-26 02:36:16,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 671 transitions. [2019-11-26 02:36:16,329 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 671 transitions. Word has length 33 [2019-11-26 02:36:16,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:16,330 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 671 transitions. [2019-11-26 02:36:16,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:36:16,330 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 671 transitions. [2019-11-26 02:36:16,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:36:16,331 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:36:16,332 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 02:36:16,332 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:36:16,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:36:16,332 INFO L82 PathProgramCache]: Analyzing trace with hash -874432749, now seen corresponding path program 3 times [2019-11-26 02:36:16,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:36:16,333 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771284807] [2019-11-26 02:36:16,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:36:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:36:16,448 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 02:36:16,449 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771284807] [2019-11-26 02:36:16,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:36:16,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:36:16,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642166474] [2019-11-26 02:36:16,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:36:16,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:36:16,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:36:16,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:36:16,450 INFO L87 Difference]: Start difference. First operand 252 states and 671 transitions. Second operand 7 states. [2019-11-26 02:36:16,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:36:16,559 INFO L93 Difference]: Finished difference Result 198 states and 509 transitions. [2019-11-26 02:36:16,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:36:16,559 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-26 02:36:16,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:36:16,559 INFO L225 Difference]: With dead ends: 198 [2019-11-26 02:36:16,559 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:36:16,560 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:36:16,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:36:16,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:36:16,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:36:16,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:36:16,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-26 02:36:16,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:36:16,561 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:36:16,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:36:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:36:16,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:36:16,564 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:36:16,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:36:16 BasicIcfg [2019-11-26 02:36:16,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:36:16,566 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:36:16,566 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:36:16,567 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:36:16,567 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:36:14" (3/4) ... [2019-11-26 02:36:16,570 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:36:16,580 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:36:16,580 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:36:16,581 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:36:16,600 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:36:16,600 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:36:16,600 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:36:16,645 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_862012d1-8135-4b58-9df3-b8bc090fa955/bin/utaipan/witness.graphml [2019-11-26 02:36:16,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:36:16,647 INFO L168 Benchmark]: Toolchain (without parser) took 3394.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 940.7 MB in the beginning and 869.0 MB in the end (delta: 71.7 MB). Peak memory consumption was 230.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:16,647 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:36:16,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 595.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:16,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.88 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 02:36:16,649 INFO L168 Benchmark]: Boogie Preprocessor took 24.98 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:16,649 INFO L168 Benchmark]: RCFGBuilder took 423.74 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:16,650 INFO L168 Benchmark]: TraceAbstraction took 2226.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 875.5 MB in the end (delta: 214.0 MB). Peak memory consumption was 214.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:16,650 INFO L168 Benchmark]: Witness Printer took 79.01 ms. Allocated memory is still 1.2 GB. Free memory was 875.5 MB in the beginning and 869.0 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:36:16,652 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 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 595.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.88 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 24.98 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 423.74 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2226.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 875.5 MB in the end (delta: 214.0 MB). Peak memory consumption was 214.0 MB. Max. memory is 11.5 GB. * Witness Printer took 79.01 ms. Allocated memory is still 1.2 GB. Free memory was 875.5 MB in the beginning and 869.0 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 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, 89 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 291 SDtfs, 333 SDslu, 755 SDs, 0 SdLazy, 109 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 0.6s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 15386 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...