./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe005_tso.opt_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_324d6f74-26eb-4439-9d54-ccb8d09210a4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe005_tso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/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 be60b145cd29aad3973e12921777ec138d6dc3f5 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:40:03,724 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:40:03,725 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:40:03,733 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:40:03,733 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:40:03,734 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:40:03,735 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:40:03,736 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:40:03,737 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:40:03,737 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:40:03,738 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:40:03,738 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:40:03,739 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:40:03,739 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:40:03,740 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:40:03,740 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:40:03,740 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:40:03,741 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:40:03,742 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:40:03,743 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:40:03,744 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:40:03,744 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:40:03,745 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 11:40:03,746 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 11:40:03,746 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 11:40:03,746 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 11:40:03,747 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 11:40:03,748 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 11:40:03,748 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 11:40:03,749 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 11:40:03,749 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 11:40:03,750 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 11:40:03,750 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 11:40:03,750 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 11:40:03,750 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 11:40:03,751 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 11:40:03,751 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 11:40:03,761 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:40:03,761 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:40:03,762 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:40:03,762 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:40:03,762 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:40:03,762 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:40:03,762 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:40:03,763 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:40:03,763 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:40:03,763 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 11:40:03,763 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:40:03,763 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:40:03,763 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:40:03,763 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:40:03,763 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:40:03,764 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:40:03,764 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:40:03,764 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:40:03,764 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:40:03,764 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:40:03,764 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:40:03,764 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:40:03,765 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:40:03,765 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:40:03,765 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:40:03,765 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:40:03,765 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:40:03,765 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 11:40:03,765 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:40:03,765 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 11:40:03,766 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_324d6f74-26eb-4439-9d54-ccb8d09210a4/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 -> be60b145cd29aad3973e12921777ec138d6dc3f5 [2018-11-23 11:40:03,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:40:03,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:40:03,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:40:03,801 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:40:03,802 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:40:03,802 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe005_tso.opt_true-unreach-call.i [2018-11-23 11:40:03,846 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/bin-2019/uautomizer/data/e406d6f6f/11eae95d4d89453891d2c6e5ac2160e3/FLAGd6647d38c [2018-11-23 11:40:04,277 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:40:04,278 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/sv-benchmarks/c/pthread-wmm/safe005_tso.opt_true-unreach-call.i [2018-11-23 11:40:04,285 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/bin-2019/uautomizer/data/e406d6f6f/11eae95d4d89453891d2c6e5ac2160e3/FLAGd6647d38c [2018-11-23 11:40:04,296 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/bin-2019/uautomizer/data/e406d6f6f/11eae95d4d89453891d2c6e5ac2160e3 [2018-11-23 11:40:04,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:40:04,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:40:04,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:40:04,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:40:04,303 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:40:04,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:40:04" (1/1) ... [2018-11-23 11:40:04,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3ac4a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04, skipping insertion in model container [2018-11-23 11:40:04,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:40:04" (1/1) ... [2018-11-23 11:40:04,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:40:04,343 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:40:04,539 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:40:04,545 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:40:04,616 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:40:04,661 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:40:04,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04 WrapperNode [2018-11-23 11:40:04,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:40:04,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:40:04,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:40:04,662 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:40:04,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04" (1/1) ... [2018-11-23 11:40:04,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04" (1/1) ... [2018-11-23 11:40:04,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:40:04,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:40:04,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:40:04,689 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:40:04,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04" (1/1) ... [2018-11-23 11:40:04,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04" (1/1) ... [2018-11-23 11:40:04,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04" (1/1) ... [2018-11-23 11:40:04,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04" (1/1) ... [2018-11-23 11:40:04,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04" (1/1) ... [2018-11-23 11:40:04,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04" (1/1) ... [2018-11-23 11:40:04,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04" (1/1) ... [2018-11-23 11:40:04,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:40:04,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:40:04,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:40:04,703 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:40:04,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/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 11:40:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 11:40:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 11:40:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 11:40:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 11:40:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 11:40:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 11:40:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 11:40:04,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 11:40:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-23 11:40:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-23 11:40:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 11:40:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:40:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:40:04,739 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 11:40:04,924 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:40:04,924 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 11:40:04,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:40:04 BoogieIcfgContainer [2018-11-23 11:40:04,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:40:04,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:40:04,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:40:04,927 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:40:04,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:40:04" (1/3) ... [2018-11-23 11:40:04,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2292ad2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:40:04, skipping insertion in model container [2018-11-23 11:40:04,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:04" (2/3) ... [2018-11-23 11:40:04,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2292ad2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:40:04, skipping insertion in model container [2018-11-23 11:40:04,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:40:04" (3/3) ... [2018-11-23 11:40:04,930 INFO L112 eAbstractionObserver]: Analyzing ICFG safe005_tso.opt_true-unreach-call.i [2018-11-23 11:40:04,954 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,954 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,954 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,954 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,955 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,955 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,955 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,955 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,955 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,955 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,955 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,956 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,956 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,956 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,956 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,956 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,956 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,956 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,957 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,957 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,957 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,957 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,957 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,957 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,958 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,958 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,958 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,958 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,958 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,958 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:40:04,966 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 11:40:04,966 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:40:04,973 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 11:40:04,986 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 11:40:05,003 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:40:05,003 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:40:05,003 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:40:05,003 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:40:05,003 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:40:05,004 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:40:05,004 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:40:05,004 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:40:05,004 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:40:05,010 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2018-11-23 11:40:05,084 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2018-11-23 11:40:05,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2018-11-23 11:40:05,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 11:40:05,099 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:40:05,100 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] [2018-11-23 11:40:05,102 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:40:05,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:40:05,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1527644630, now seen corresponding path program 1 times [2018-11-23 11:40:05,108 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 11:40:05,109 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 11:40:05,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:40:05,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:40:05,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:40:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:40:05,301 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 11:40:05,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:40:05,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 11:40:05,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 11:40:05,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 11:40:05,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 11:40:05,316 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2018-11-23 11:40:05,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:40:05,411 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2018-11-23 11:40:05,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 11:40:05,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-23 11:40:05,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:40:05,434 INFO L225 Difference]: With dead ends: 2493 [2018-11-23 11:40:05,434 INFO L226 Difference]: Without dead ends: 1128 [2018-11-23 11:40:05,435 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 11:40:05,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2018-11-23 11:40:05,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2018-11-23 11:40:05,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2018-11-23 11:40:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2018-11-23 11:40:05,512 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2018-11-23 11:40:05,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:40:05,512 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2018-11-23 11:40:05,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 11:40:05,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2018-11-23 11:40:05,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 11:40:05,515 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:40:05,515 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] [2018-11-23 11:40:05,515 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:40:05,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:40:05,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1534799274, now seen corresponding path program 1 times [2018-11-23 11:40:05,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 11:40:05,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 11:40:05,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:40:05,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:40:05,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:40:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:40:05,591 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 11:40:05,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:40:05,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 11:40:05,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 11:40:05,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 11:40:05,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 11:40:05,593 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2018-11-23 11:40:05,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:40:05,695 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2018-11-23 11:40:05,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 11:40:05,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-23 11:40:05,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:40:05,700 INFO L225 Difference]: With dead ends: 1168 [2018-11-23 11:40:05,701 INFO L226 Difference]: Without dead ends: 1044 [2018-11-23 11:40:05,701 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 11:40:05,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-11-23 11:40:05,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2018-11-23 11:40:05,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2018-11-23 11:40:05,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2018-11-23 11:40:05,730 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2018-11-23 11:40:05,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:40:05,730 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2018-11-23 11:40:05,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 11:40:05,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2018-11-23 11:40:05,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 11:40:05,732 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:40:05,733 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] [2018-11-23 11:40:05,733 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:40:05,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:40:05,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1935451892, now seen corresponding path program 1 times [2018-11-23 11:40:05,733 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 11:40:05,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 11:40:05,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:40:05,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:40:05,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:40:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:40:05,805 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 11:40:05,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:40:05,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 11:40:05,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 11:40:05,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 11:40:05,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 11:40:05,806 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2018-11-23 11:40:05,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:40:05,926 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2018-11-23 11:40:05,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 11:40:05,926 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-23 11:40:05,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:40:05,929 INFO L225 Difference]: With dead ends: 820 [2018-11-23 11:40:05,930 INFO L226 Difference]: Without dead ends: 708 [2018-11-23 11:40:05,930 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 11:40:05,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-23 11:40:05,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-11-23 11:40:05,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-23 11:40:05,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2018-11-23 11:40:05,950 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2018-11-23 11:40:05,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:40:05,951 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2018-11-23 11:40:05,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 11:40:05,951 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2018-11-23 11:40:05,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 11:40:05,952 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:40:05,953 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] [2018-11-23 11:40:05,953 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:40:05,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:40:05,953 INFO L82 PathProgramCache]: Analyzing trace with hash 794836574, now seen corresponding path program 1 times [2018-11-23 11:40:05,953 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 11:40:05,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 11:40:05,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:40:05,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:40:05,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:40:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:40:06,047 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 11:40:06,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:40:06,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 11:40:06,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 11:40:06,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 11:40:06,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 11:40:06,048 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 6 states. [2018-11-23 11:40:06,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:40:06,159 INFO L93 Difference]: Finished difference Result 1172 states and 3451 transitions. [2018-11-23 11:40:06,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 11:40:06,160 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-11-23 11:40:06,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:40:06,163 INFO L225 Difference]: With dead ends: 1172 [2018-11-23 11:40:06,163 INFO L226 Difference]: Without dead ends: 656 [2018-11-23 11:40:06,163 INFO L631 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 [2018-11-23 11:40:06,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2018-11-23 11:40:06,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 656. [2018-11-23 11:40:06,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2018-11-23 11:40:06,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 1931 transitions. [2018-11-23 11:40:06,181 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 1931 transitions. Word has length 33 [2018-11-23 11:40:06,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:40:06,181 INFO L480 AbstractCegarLoop]: Abstraction has 656 states and 1931 transitions. [2018-11-23 11:40:06,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 11:40:06,182 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 1931 transitions. [2018-11-23 11:40:06,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 11:40:06,183 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:40:06,183 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] [2018-11-23 11:40:06,183 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:40:06,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:40:06,184 INFO L82 PathProgramCache]: Analyzing trace with hash 690889132, now seen corresponding path program 2 times [2018-11-23 11:40:06,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 11:40:06,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 11:40:06,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:40:06,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:40:06,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 11:40:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:40:06,284 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 11:40:06,285 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:40:06,285 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 11:40:06,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 11:40:06,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 11:40:06,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-23 11:40:06,285 INFO L87 Difference]: Start difference. First operand 656 states and 1931 transitions. Second operand 8 states. [2018-11-23 11:40:06,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:40:06,425 INFO L93 Difference]: Finished difference Result 912 states and 2699 transitions. [2018-11-23 11:40:06,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 11:40:06,425 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2018-11-23 11:40:06,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:40:06,426 INFO L225 Difference]: With dead ends: 912 [2018-11-23 11:40:06,426 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 11:40:06,426 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2018-11-23 11:40:06,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 11:40:06,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 11:40:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 11:40:06,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 11:40:06,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-23 11:40:06,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:40:06,428 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 11:40:06,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 11:40:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:40:06,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:40:06,430 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 11:40:06,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:40:06 BasicIcfg [2018-11-23 11:40:06,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 11:40:06,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 11:40:06,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 11:40:06,432 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 11:40:06,432 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:40:04" (3/4) ... [2018-11-23 11:40:06,435 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 11:40:06,440 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 11:40:06,440 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 11:40:06,440 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-23 11:40:06,443 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 11:40:06,443 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 11:40:06,471 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_324d6f74-26eb-4439-9d54-ccb8d09210a4/bin-2019/uautomizer/witness.graphml [2018-11-23 11:40:06,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 11:40:06,475 INFO L168 Benchmark]: Toolchain (without parser) took 2176.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 956.5 MB in the beginning and 899.8 MB in the end (delta: 56.7 MB). Peak memory consumption was 216.6 MB. Max. memory is 11.5 GB. [2018-11-23 11:40:06,476 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 11:40:06,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2018-11-23 11:40:06,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.21 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 11:40:06,477 INFO L168 Benchmark]: Boogie Preprocessor took 13.69 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 11:40:06,477 INFO L168 Benchmark]: RCFGBuilder took 221.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-11-23 11:40:06,477 INFO L168 Benchmark]: TraceAbstraction took 1506.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 903.2 MB in the end (delta: 203.8 MB). Peak memory consumption was 203.8 MB. Max. memory is 11.5 GB. [2018-11-23 11:40:06,478 INFO L168 Benchmark]: Witness Printer took 42.34 ms. Allocated memory is still 1.2 GB. Free memory was 903.2 MB in the beginning and 899.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 11:40:06,479 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 361.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.21 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 221.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1506.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 903.2 MB in the end (delta: 203.8 MB). Peak memory consumption was 203.8 MB. Max. memory is 11.5 GB. * Witness Printer took 42.34 ms. Allocated memory is still 1.2 GB. Free memory was 903.2 MB in the beginning and 899.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 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 7 procedures, 71 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 288 SDtfs, 385 SDslu, 737 SDs, 0 SdLazy, 91 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 12350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...