./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a986b08dd7a1d9de684ac66adc6b4db3c2e0701 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 00:21:07,911 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:21:07,912 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:21:07,921 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:21:07,921 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:21:07,922 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:21:07,923 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:21:07,924 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:21:07,925 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:21:07,926 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:21:07,927 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:21:07,927 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:21:07,928 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:21:07,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:21:07,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:21:07,929 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:21:07,930 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:21:07,931 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:21:07,933 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:21:07,934 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:21:07,934 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:21:07,935 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:21:07,937 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:21:07,937 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:21:07,937 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:21:07,938 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:21:07,938 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:21:07,939 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:21:07,940 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:21:07,940 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:21:07,940 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:21:07,941 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:21:07,941 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:21:07,941 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:21:07,942 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:21:07,943 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:21:07,943 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 00:21:07,952 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:21:07,953 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:21:07,953 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:21:07,953 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 00:21:07,954 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 00:21:07,954 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 00:21:07,954 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 00:21:07,954 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:21:07,954 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:21:07,955 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:21:07,955 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:21:07,955 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:21:07,955 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:21:07,955 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:21:07,955 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:21:07,955 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:21:07,956 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:21:07,956 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:21:07,956 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:21:07,956 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:21:07,956 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 00:21:07,956 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:21:07,956 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 00:21:07,957 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:21:07,957 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:21:07,959 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:21:07,959 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:21:07,959 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 00:21:07,959 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:21:07,959 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 00:21:07,959 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer 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 -> Automizer 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 -> 0a986b08dd7a1d9de684ac66adc6b4db3c2e0701 [2018-11-23 00:21:07,984 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:21:07,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:21:07,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:21:07,995 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:21:07,995 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:21:07,996 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc_true-unreach-call.i [2018-11-23 00:21:08,030 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/data/e0c5f553b/6965635fdede496e841707ba15fad53a/FLAGe94ee7dbc [2018-11-23 00:21:08,489 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:21:08,489 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc_true-unreach-call.i [2018-11-23 00:21:08,498 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/data/e0c5f553b/6965635fdede496e841707ba15fad53a/FLAGe94ee7dbc [2018-11-23 00:21:08,507 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/data/e0c5f553b/6965635fdede496e841707ba15fad53a [2018-11-23 00:21:08,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:21:08,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:21:08,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:21:08,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:21:08,514 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:21:08,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:21:08" (1/1) ... [2018-11-23 00:21:08,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ed6b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08, skipping insertion in model container [2018-11-23 00:21:08,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:21:08" (1/1) ... [2018-11-23 00:21:08,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:21:08,552 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:21:08,762 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:21:08,772 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:21:08,847 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:21:08,886 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:21:08,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08 WrapperNode [2018-11-23 00:21:08,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:21:08,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:21:08,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:21:08,887 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:21:08,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08" (1/1) ... [2018-11-23 00:21:08,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08" (1/1) ... [2018-11-23 00:21:08,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:21:08,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:21:08,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:21:08,915 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:21:08,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08" (1/1) ... [2018-11-23 00:21:08,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08" (1/1) ... [2018-11-23 00:21:08,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08" (1/1) ... [2018-11-23 00:21:08,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08" (1/1) ... [2018-11-23 00:21:08,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08" (1/1) ... [2018-11-23 00:21:08,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08" (1/1) ... [2018-11-23 00:21:08,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08" (1/1) ... [2018-11-23 00:21:08,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:21:08,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:21:08,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:21:08,936 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:21:08,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/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 [2018-11-23 00:21:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 00:21:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 00:21:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 00:21:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 00:21:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 00:21:08,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 00:21:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 00:21:08,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 00:21:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-23 00:21:08,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-23 00:21:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2018-11-23 00:21:08,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2018-11-23 00:21:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 00:21:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:21:08,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:21:08,981 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 00:21:09,243 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:21:09,243 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 00:21:09,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:21:09 BoogieIcfgContainer [2018-11-23 00:21:09,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:21:09,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 00:21:09,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 00:21:09,247 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 00:21:09,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:21:08" (1/3) ... [2018-11-23 00:21:09,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679307a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:21:09, skipping insertion in model container [2018-11-23 00:21:09,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:08" (2/3) ... [2018-11-23 00:21:09,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679307a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:21:09, skipping insertion in model container [2018-11-23 00:21:09,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:21:09" (3/3) ... [2018-11-23 00:21:09,249 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc_true-unreach-call.i [2018-11-23 00:21:09,274 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,274 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,274 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,275 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,275 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,275 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,275 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,275 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,275 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,276 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,276 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,276 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,276 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,276 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,277 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,277 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,277 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,277 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,277 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,277 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,277 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,278 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,278 WARN L317 ript$VariableManager]: TermVariabe Thread2_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,278 WARN L317 ript$VariableManager]: TermVariabe Thread2_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,278 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,278 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,278 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,278 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,278 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,278 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,278 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,278 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,279 WARN L317 ript$VariableManager]: TermVariabe Thread3_P3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,279 WARN L317 ript$VariableManager]: TermVariabe Thread3_P3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,279 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,279 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,279 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,279 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,279 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,279 WARN L317 ript$VariableManager]: TermVariabe |Thread3_P3_#t~nondet6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:21:09,286 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 00:21:09,286 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 00:21:09,292 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 00:21:09,303 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 00:21:09,320 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 00:21:09,320 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 00:21:09,320 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 00:21:09,321 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 00:21:09,321 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 00:21:09,321 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 00:21:09,321 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 00:21:09,321 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 00:21:09,321 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 00:21:09,327 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70places, 66 transitions [2018-11-23 00:21:10,080 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13138 states. [2018-11-23 00:21:10,082 INFO L276 IsEmpty]: Start isEmpty. Operand 13138 states. [2018-11-23 00:21:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 00:21:10,100 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:21:10,102 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:21:10,104 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:21:10,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:21:10,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1445141644, now seen corresponding path program 1 times [2018-11-23 00:21:10,111 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:21:10,111 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:21:10,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:10,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:21:10,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:21:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:21:10,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:21:10,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 00:21:10,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 00:21:10,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 00:21:10,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:21:10,325 INFO L87 Difference]: Start difference. First operand 13138 states. Second operand 4 states. [2018-11-23 00:21:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:21:10,534 INFO L93 Difference]: Finished difference Result 13744 states and 55795 transitions. [2018-11-23 00:21:10,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 00:21:10,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-11-23 00:21:10,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:21:10,584 INFO L225 Difference]: With dead ends: 13744 [2018-11-23 00:21:10,584 INFO L226 Difference]: Without dead ends: 5631 [2018-11-23 00:21:10,586 INFO L631 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 [2018-11-23 00:21:10,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5631 states. [2018-11-23 00:21:10,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5631 to 5631. [2018-11-23 00:21:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5631 states. [2018-11-23 00:21:10,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5631 states to 5631 states and 22354 transitions. [2018-11-23 00:21:10,814 INFO L78 Accepts]: Start accepts. Automaton has 5631 states and 22354 transitions. Word has length 37 [2018-11-23 00:21:10,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:21:10,815 INFO L480 AbstractCegarLoop]: Abstraction has 5631 states and 22354 transitions. [2018-11-23 00:21:10,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 00:21:10,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5631 states and 22354 transitions. [2018-11-23 00:21:10,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-23 00:21:10,819 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:21:10,820 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:21:10,820 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:21:10,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:21:10,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1883999228, now seen corresponding path program 1 times [2018-11-23 00:21:10,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:21:10,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:21:10,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:10,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:21:10,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:21:10,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:21:10,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:21:10,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 00:21:10,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 00:21:10,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 00:21:10,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 00:21:10,915 INFO L87 Difference]: Start difference. First operand 5631 states and 22354 transitions. Second operand 5 states. [2018-11-23 00:21:11,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:21:11,010 INFO L93 Difference]: Finished difference Result 6143 states and 23834 transitions. [2018-11-23 00:21:11,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 00:21:11,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2018-11-23 00:21:11,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:21:11,029 INFO L225 Difference]: With dead ends: 6143 [2018-11-23 00:21:11,029 INFO L226 Difference]: Without dead ends: 5519 [2018-11-23 00:21:11,030 INFO L631 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 [2018-11-23 00:21:11,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5519 states. [2018-11-23 00:21:11,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5519 to 5519. [2018-11-23 00:21:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5519 states. [2018-11-23 00:21:11,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 21822 transitions. [2018-11-23 00:21:11,123 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 21822 transitions. Word has length 38 [2018-11-23 00:21:11,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:21:11,123 INFO L480 AbstractCegarLoop]: Abstraction has 5519 states and 21822 transitions. [2018-11-23 00:21:11,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 00:21:11,124 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 21822 transitions. [2018-11-23 00:21:11,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 00:21:11,127 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:21:11,128 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:21:11,128 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:21:11,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:21:11,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1586589234, now seen corresponding path program 1 times [2018-11-23 00:21:11,128 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:21:11,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:21:11,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:11,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:21:11,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:21:11,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:21:11,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:21:11,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 00:21:11,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 00:21:11,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 00:21:11,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 00:21:11,201 INFO L87 Difference]: Start difference. First operand 5519 states and 21822 transitions. Second operand 6 states. [2018-11-23 00:21:11,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:21:11,281 INFO L93 Difference]: Finished difference Result 5455 states and 20830 transitions. [2018-11-23 00:21:11,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 00:21:11,281 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-11-23 00:21:11,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:21:11,301 INFO L225 Difference]: With dead ends: 5455 [2018-11-23 00:21:11,301 INFO L226 Difference]: Without dead ends: 4847 [2018-11-23 00:21:11,301 INFO L631 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 [2018-11-23 00:21:11,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2018-11-23 00:21:11,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4847. [2018-11-23 00:21:11,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4847 states. [2018-11-23 00:21:11,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4847 states to 4847 states and 18798 transitions. [2018-11-23 00:21:11,374 INFO L78 Accepts]: Start accepts. Automaton has 4847 states and 18798 transitions. Word has length 39 [2018-11-23 00:21:11,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:21:11,374 INFO L480 AbstractCegarLoop]: Abstraction has 4847 states and 18798 transitions. [2018-11-23 00:21:11,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 00:21:11,374 INFO L276 IsEmpty]: Start isEmpty. Operand 4847 states and 18798 transitions. [2018-11-23 00:21:11,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-23 00:21:11,379 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:21:11,379 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:21:11,379 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:21:11,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:21:11,380 INFO L82 PathProgramCache]: Analyzing trace with hash 2117960818, now seen corresponding path program 1 times [2018-11-23 00:21:11,380 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:21:11,380 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:21:11,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:11,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:21:11,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:21:11,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:21:11,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:21:11,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 00:21:11,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 00:21:11,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 00:21:11,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 00:21:11,459 INFO L87 Difference]: Start difference. First operand 4847 states and 18798 transitions. Second operand 7 states. [2018-11-23 00:21:11,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:21:11,534 INFO L93 Difference]: Finished difference Result 3567 states and 13038 transitions. [2018-11-23 00:21:11,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 00:21:11,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2018-11-23 00:21:11,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:21:11,543 INFO L225 Difference]: With dead ends: 3567 [2018-11-23 00:21:11,543 INFO L226 Difference]: Without dead ends: 3055 [2018-11-23 00:21:11,543 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-23 00:21:11,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2018-11-23 00:21:11,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 3055. [2018-11-23 00:21:11,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3055 states. [2018-11-23 00:21:11,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3055 states to 3055 states and 11182 transitions. [2018-11-23 00:21:11,600 INFO L78 Accepts]: Start accepts. Automaton has 3055 states and 11182 transitions. Word has length 40 [2018-11-23 00:21:11,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:21:11,601 INFO L480 AbstractCegarLoop]: Abstraction has 3055 states and 11182 transitions. [2018-11-23 00:21:11,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 00:21:11,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3055 states and 11182 transitions. [2018-11-23 00:21:11,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 00:21:11,604 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:21:11,605 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:21:11,605 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:21:11,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:21:11,605 INFO L82 PathProgramCache]: Analyzing trace with hash -2066804268, now seen corresponding path program 1 times [2018-11-23 00:21:11,605 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:21:11,605 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:21:11,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:11,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:21:11,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:21:11,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:21:11,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:21:11,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-23 00:21:11,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 00:21:11,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 00:21:11,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-11-23 00:21:11,791 INFO L87 Difference]: Start difference. First operand 3055 states and 11182 transitions. Second operand 12 states. [2018-11-23 00:21:12,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:21:12,027 INFO L93 Difference]: Finished difference Result 5279 states and 19302 transitions. [2018-11-23 00:21:12,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 00:21:12,028 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-11-23 00:21:12,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:21:12,039 INFO L225 Difference]: With dead ends: 5279 [2018-11-23 00:21:12,039 INFO L226 Difference]: Without dead ends: 3003 [2018-11-23 00:21:12,040 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-11-23 00:21:12,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2018-11-23 00:21:12,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 3003. [2018-11-23 00:21:12,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3003 states. [2018-11-23 00:21:12,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3003 states to 3003 states and 11022 transitions. [2018-11-23 00:21:12,152 INFO L78 Accepts]: Start accepts. Automaton has 3003 states and 11022 transitions. Word has length 41 [2018-11-23 00:21:12,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:21:12,152 INFO L480 AbstractCegarLoop]: Abstraction has 3003 states and 11022 transitions. [2018-11-23 00:21:12,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 00:21:12,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3003 states and 11022 transitions. [2018-11-23 00:21:12,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 00:21:12,156 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:21:12,156 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:21:12,156 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:21:12,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:21:12,157 INFO L82 PathProgramCache]: Analyzing trace with hash -994845904, now seen corresponding path program 2 times [2018-11-23 00:21:12,157 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:21:12,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:21:12,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:12,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:21:12,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:21:12,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:21:12,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:21:12,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 00:21:12,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 00:21:12,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 00:21:12,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 00:21:12,234 INFO L87 Difference]: Start difference. First operand 3003 states and 11022 transitions. Second operand 7 states. [2018-11-23 00:21:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:21:12,302 INFO L93 Difference]: Finished difference Result 4923 states and 18158 transitions. [2018-11-23 00:21:12,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 00:21:12,302 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-11-23 00:21:12,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:21:12,310 INFO L225 Difference]: With dead ends: 4923 [2018-11-23 00:21:12,310 INFO L226 Difference]: Without dead ends: 2663 [2018-11-23 00:21:12,311 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 00:21:12,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2018-11-23 00:21:12,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 2663. [2018-11-23 00:21:12,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2663 states. [2018-11-23 00:21:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 9870 transitions. [2018-11-23 00:21:12,364 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 9870 transitions. Word has length 41 [2018-11-23 00:21:12,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:21:12,365 INFO L480 AbstractCegarLoop]: Abstraction has 2663 states and 9870 transitions. [2018-11-23 00:21:12,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 00:21:12,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 9870 transitions. [2018-11-23 00:21:12,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 00:21:12,367 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:21:12,367 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:21:12,368 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:21:12,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:21:12,368 INFO L82 PathProgramCache]: Analyzing trace with hash 2040016274, now seen corresponding path program 3 times [2018-11-23 00:21:12,368 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:21:12,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:21:12,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:12,370 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:21:12,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:21:12,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:21:12,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:21:12,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 00:21:12,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 00:21:12,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 00:21:12,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 00:21:12,460 INFO L87 Difference]: Start difference. First operand 2663 states and 9870 transitions. Second operand 7 states. [2018-11-23 00:21:12,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:21:12,519 INFO L93 Difference]: Finished difference Result 4263 states and 15966 transitions. [2018-11-23 00:21:12,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 00:21:12,520 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2018-11-23 00:21:12,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:21:12,524 INFO L225 Difference]: With dead ends: 4263 [2018-11-23 00:21:12,524 INFO L226 Difference]: Without dead ends: 2263 [2018-11-23 00:21:12,524 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 00:21:12,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2018-11-23 00:21:12,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2263. [2018-11-23 00:21:12,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2263 states. [2018-11-23 00:21:12,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 8530 transitions. [2018-11-23 00:21:12,567 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 8530 transitions. Word has length 41 [2018-11-23 00:21:12,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:21:12,567 INFO L480 AbstractCegarLoop]: Abstraction has 2263 states and 8530 transitions. [2018-11-23 00:21:12,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 00:21:12,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 8530 transitions. [2018-11-23 00:21:12,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 00:21:12,569 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:21:12,569 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:21:12,570 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:21:12,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:21:12,570 INFO L82 PathProgramCache]: Analyzing trace with hash -390113582, now seen corresponding path program 4 times [2018-11-23 00:21:12,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:21:12,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:21:12,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:12,572 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:21:12,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:21:12,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:21:12,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:21:12,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-23 00:21:12,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 00:21:12,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 00:21:12,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-11-23 00:21:12,697 INFO L87 Difference]: Start difference. First operand 2263 states and 8530 transitions. Second operand 12 states. [2018-11-23 00:21:12,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:21:12,827 INFO L93 Difference]: Finished difference Result 3879 states and 14666 transitions. [2018-11-23 00:21:12,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 00:21:12,827 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-11-23 00:21:12,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:21:12,831 INFO L225 Difference]: With dead ends: 3879 [2018-11-23 00:21:12,831 INFO L226 Difference]: Without dead ends: 2243 [2018-11-23 00:21:12,831 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-11-23 00:21:12,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2018-11-23 00:21:12,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 2243. [2018-11-23 00:21:12,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2243 states. [2018-11-23 00:21:12,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 8490 transitions. [2018-11-23 00:21:12,865 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 8490 transitions. Word has length 41 [2018-11-23 00:21:12,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:21:12,866 INFO L480 AbstractCegarLoop]: Abstraction has 2243 states and 8490 transitions. [2018-11-23 00:21:12,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 00:21:12,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 8490 transitions. [2018-11-23 00:21:12,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 00:21:12,868 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:21:12,868 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:21:12,868 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:21:12,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:21:12,868 INFO L82 PathProgramCache]: Analyzing trace with hash -663323788, now seen corresponding path program 5 times [2018-11-23 00:21:12,869 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:21:12,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:21:12,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:12,870 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:21:12,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:21:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:21:12,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:21:12,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:21:12,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 00:21:12,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 00:21:12,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 00:21:12,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 00:21:12,939 INFO L87 Difference]: Start difference. First operand 2243 states and 8490 transitions. Second operand 8 states. [2018-11-23 00:21:13,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:21:13,035 INFO L93 Difference]: Finished difference Result 1731 states and 6442 transitions. [2018-11-23 00:21:13,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 00:21:13,036 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-11-23 00:21:13,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:21:13,036 INFO L225 Difference]: With dead ends: 1731 [2018-11-23 00:21:13,036 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 00:21:13,036 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-23 00:21:13,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 00:21:13,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 00:21:13,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 00:21:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 00:21:13,037 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-11-23 00:21:13,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:21:13,037 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 00:21:13,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 00:21:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 00:21:13,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 00:21:13,040 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 00:21:13,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:21:13 BasicIcfg [2018-11-23 00:21:13,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 00:21:13,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:21:13,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:21:13,042 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:21:13,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:21:09" (3/4) ... [2018-11-23 00:21:13,045 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 00:21:13,050 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 00:21:13,050 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 00:21:13,050 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-23 00:21:13,050 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2018-11-23 00:21:13,054 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-23 00:21:13,054 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 00:21:13,086 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bcb3f4cc-334c-439e-8d79-9b9d1ba3be49/bin-2019/uautomizer/witness.graphml [2018-11-23 00:21:13,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:21:13,087 INFO L168 Benchmark]: Toolchain (without parser) took 4576.30 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 312.0 MB). Free memory was 951.1 MB in the beginning and 913.5 MB in the end (delta: 37.6 MB). Peak memory consumption was 349.6 MB. Max. memory is 11.5 GB. [2018-11-23 00:21:13,088 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:21:13,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:21:13,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.85 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. [2018-11-23 00:21:13,088 INFO L168 Benchmark]: Boogie Preprocessor took 20.49 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:21:13,089 INFO L168 Benchmark]: RCFGBuilder took 307.78 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2018-11-23 00:21:13,089 INFO L168 Benchmark]: TraceAbstraction took 3796.84 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.1 GB in the beginning and 913.5 MB in the end (delta: 165.2 MB). Peak memory consumption was 345.5 MB. Max. memory is 11.5 GB. [2018-11-23 00:21:13,091 INFO L168 Benchmark]: Witness Printer took 44.19 ms. Allocated memory is still 1.3 GB. Free memory is still 913.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:21:13,093 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 374.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.85 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 20.49 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 307.78 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3796.84 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.1 GB in the beginning and 913.5 MB in the end (delta: 165.2 MB). Peak memory consumption was 345.5 MB. Max. memory is 11.5 GB. * Witness Printer took 44.19 ms. Allocated memory is still 1.3 GB. Free memory is still 913.5 MB. There was no memory consumed. 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 9 procedures, 90 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 712 SDtfs, 1190 SDslu, 3013 SDs, 0 SdLazy, 409 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13138occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 50310 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...