./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/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 3d5d738785469032c070cabc60204008ea544832 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:33:32,786 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:33:32,788 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:33:32,797 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:33:32,797 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:33:32,798 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:33:32,798 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:33:32,799 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:33:32,800 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:33:32,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:33:32,801 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:33:32,801 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:33:32,802 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:33:32,803 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:33:32,803 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:33:32,804 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:33:32,804 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:33:32,805 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:33:32,807 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:33:32,808 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:33:32,808 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:33:32,809 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:33:32,811 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:33:32,811 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:33:32,811 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:33:32,812 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:33:32,812 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:33:32,813 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:33:32,813 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:33:32,814 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:33:32,814 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:33:32,814 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:33:32,815 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:33:32,815 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:33:32,815 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:33:32,816 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:33:32,816 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 11:33:32,824 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:33:32,824 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:33:32,825 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:33:32,825 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:33:32,825 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:33:32,826 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:33:32,826 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:33:32,826 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:33:32,826 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:33:32,826 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:33:32,826 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:33:32,826 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:33:32,827 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:33:32,827 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:33:32,827 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:33:32,827 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:33:32,827 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:33:32,827 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:33:32,828 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:33:32,828 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:33:32,828 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:33:32,828 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:33:32,828 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:33:32,828 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:33:32,829 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:33:32,829 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:33:32,829 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:33:32,829 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:33:32,829 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:33:32,829 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:33:32,829 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_33e481c9-8d55-44b4-9684-230480485c5b/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 -> 3d5d738785469032c070cabc60204008ea544832 [2018-11-28 11:33:32,857 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:33:32,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:33:32,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:33:32,869 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:33:32,870 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:33:32,870 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i [2018-11-28 11:33:32,912 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/bin-2019/uautomizer/data/a8e5d7979/a8efd7dbbcf94acd896798d4cf2a7bfe/FLAG16c9a82a0 [2018-11-28 11:33:33,281 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:33:33,282 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i [2018-11-28 11:33:33,291 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/bin-2019/uautomizer/data/a8e5d7979/a8efd7dbbcf94acd896798d4cf2a7bfe/FLAG16c9a82a0 [2018-11-28 11:33:33,675 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/bin-2019/uautomizer/data/a8e5d7979/a8efd7dbbcf94acd896798d4cf2a7bfe [2018-11-28 11:33:33,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:33:33,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:33:33,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:33:33,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:33:33,682 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:33:33,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:33:33" (1/1) ... [2018-11-28 11:33:33,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3711ebb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:33, skipping insertion in model container [2018-11-28 11:33:33,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:33:33" (1/1) ... [2018-11-28 11:33:33,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:33:33,715 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:33:33,913 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:33:33,923 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:33:34,001 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:33:34,032 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:33:34,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34 WrapperNode [2018-11-28 11:33:34,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:33:34,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:33:34,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:33:34,033 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:33:34,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34" (1/1) ... [2018-11-28 11:33:34,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34" (1/1) ... [2018-11-28 11:33:34,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:33:34,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:33:34,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:33:34,066 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:33:34,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34" (1/1) ... [2018-11-28 11:33:34,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34" (1/1) ... [2018-11-28 11:33:34,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34" (1/1) ... [2018-11-28 11:33:34,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34" (1/1) ... [2018-11-28 11:33:34,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34" (1/1) ... [2018-11-28 11:33:34,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34" (1/1) ... [2018-11-28 11:33:34,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34" (1/1) ... [2018-11-28 11:33:34,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:33:34,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:33:34,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:33:34,088 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:33:34,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/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 [2018-11-28 11:33:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:33:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 11:33:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-28 11:33:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-28 11:33:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-28 11:33:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-28 11:33:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 11:33:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:33:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:33:34,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:33:34,135 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 11:33:34,434 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:33:34,434 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 11:33:34,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:33:34 BoogieIcfgContainer [2018-11-28 11:33:34,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:33:34,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:33:34,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:33:34,438 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:33:34,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:33:33" (1/3) ... [2018-11-28 11:33:34,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7ab2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:33:34, skipping insertion in model container [2018-11-28 11:33:34,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:33:34" (2/3) ... [2018-11-28 11:33:34,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7ab2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:33:34, skipping insertion in model container [2018-11-28 11:33:34,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:33:34" (3/3) ... [2018-11-28 11:33:34,441 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski_true-unreach-call.i [2018-11-28 11:33:34,461 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,462 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,462 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,462 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,462 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,463 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,463 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,463 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,463 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,463 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,464 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,464 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:33:34,476 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 11:33:34,476 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:33:34,483 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 11:33:34,497 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 11:33:34,519 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:33:34,520 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:33:34,520 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:33:34,520 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:33:34,520 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:33:34,520 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:33:34,520 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:33:34,521 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:33:34,521 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:33:34,530 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 65places, 84 transitions [2018-11-28 11:33:34,576 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1154 states. [2018-11-28 11:33:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states. [2018-11-28 11:33:34,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 11:33:34,588 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:33:34,588 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] [2018-11-28 11:33:34,590 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:33:34,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:33:34,595 INFO L82 PathProgramCache]: Analyzing trace with hash -686332095, now seen corresponding path program 1 times [2018-11-28 11:33:34,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:33:34,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:33:34,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:34,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:33:34,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:33:34,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:33:34,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:33:34,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:33:34,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 11:33:34,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 11:33:34,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:33:34,717 INFO L87 Difference]: Start difference. First operand 1154 states. Second operand 2 states. [2018-11-28 11:33:34,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:33:34,744 INFO L93 Difference]: Finished difference Result 1154 states and 3405 transitions. [2018-11-28 11:33:34,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 11:33:34,746 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 11:33:34,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:33:34,764 INFO L225 Difference]: With dead ends: 1154 [2018-11-28 11:33:34,764 INFO L226 Difference]: Without dead ends: 1040 [2018-11-28 11:33:34,765 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:33:34,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2018-11-28 11:33:34,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1040. [2018-11-28 11:33:34,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2018-11-28 11:33:34,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 3099 transitions. [2018-11-28 11:33:34,842 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 3099 transitions. Word has length 21 [2018-11-28 11:33:34,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:33:34,843 INFO L480 AbstractCegarLoop]: Abstraction has 1040 states and 3099 transitions. [2018-11-28 11:33:34,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 11:33:34,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 3099 transitions. [2018-11-28 11:33:34,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 11:33:34,845 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:33:34,845 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] [2018-11-28 11:33:34,845 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:33:34,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:33:34,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1056508031, now seen corresponding path program 1 times [2018-11-28 11:33:34,846 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:33:34,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:33:34,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:34,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:33:34,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:33:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:33:34,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:33:34,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:33:34,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:33:34,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:33:34,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:34,894 INFO L87 Difference]: Start difference. First operand 1040 states and 3099 transitions. Second operand 3 states. [2018-11-28 11:33:34,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:33:34,940 INFO L93 Difference]: Finished difference Result 1055 states and 3072 transitions. [2018-11-28 11:33:34,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:33:34,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-28 11:33:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:33:34,945 INFO L225 Difference]: With dead ends: 1055 [2018-11-28 11:33:34,946 INFO L226 Difference]: Without dead ends: 857 [2018-11-28 11:33:34,946 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2018-11-28 11:33:34,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 803. [2018-11-28 11:33:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-11-28 11:33:34,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 2362 transitions. [2018-11-28 11:33:34,968 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 2362 transitions. Word has length 21 [2018-11-28 11:33:34,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:33:34,968 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 2362 transitions. [2018-11-28 11:33:34,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:33:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 2362 transitions. [2018-11-28 11:33:34,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 11:33:34,970 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:33:34,970 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] [2018-11-28 11:33:34,970 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:33:34,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:33:34,971 INFO L82 PathProgramCache]: Analyzing trace with hash 843213921, now seen corresponding path program 1 times [2018-11-28 11:33:34,971 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:33:34,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:33:34,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:34,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:33:34,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:33:35,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:33:35,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:33:35,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:33:35,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:33:35,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:33:35,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:35,012 INFO L87 Difference]: Start difference. First operand 803 states and 2362 transitions. Second operand 3 states. [2018-11-28 11:33:35,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:33:35,035 INFO L93 Difference]: Finished difference Result 743 states and 2155 transitions. [2018-11-28 11:33:35,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:33:35,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-11-28 11:33:35,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:33:35,038 INFO L225 Difference]: With dead ends: 743 [2018-11-28 11:33:35,038 INFO L226 Difference]: Without dead ends: 530 [2018-11-28 11:33:35,039 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:35,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2018-11-28 11:33:35,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2018-11-28 11:33:35,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2018-11-28 11:33:35,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1532 transitions. [2018-11-28 11:33:35,051 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1532 transitions. Word has length 24 [2018-11-28 11:33:35,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:33:35,052 INFO L480 AbstractCegarLoop]: Abstraction has 530 states and 1532 transitions. [2018-11-28 11:33:35,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:33:35,052 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1532 transitions. [2018-11-28 11:33:35,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 11:33:35,054 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:33:35,054 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] [2018-11-28 11:33:35,054 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:33:35,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:33:35,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1048913754, now seen corresponding path program 1 times [2018-11-28 11:33:35,055 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:33:35,055 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:33:35,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:35,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:33:35,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:33:35,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:33:35,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:33:35,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:33:35,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:33:35,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:33:35,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:35,114 INFO L87 Difference]: Start difference. First operand 530 states and 1532 transitions. Second operand 3 states. [2018-11-28 11:33:35,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:33:35,172 INFO L93 Difference]: Finished difference Result 578 states and 1633 transitions. [2018-11-28 11:33:35,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:33:35,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-11-28 11:33:35,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:33:35,175 INFO L225 Difference]: With dead ends: 578 [2018-11-28 11:33:35,175 INFO L226 Difference]: Without dead ends: 464 [2018-11-28 11:33:35,175 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:35,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2018-11-28 11:33:35,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2018-11-28 11:33:35,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2018-11-28 11:33:35,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1269 transitions. [2018-11-28 11:33:35,188 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1269 transitions. Word has length 32 [2018-11-28 11:33:35,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:33:35,189 INFO L480 AbstractCegarLoop]: Abstraction has 464 states and 1269 transitions. [2018-11-28 11:33:35,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:33:35,189 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1269 transitions. [2018-11-28 11:33:35,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 11:33:35,190 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:33:35,190 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] [2018-11-28 11:33:35,191 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:33:35,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:33:35,191 INFO L82 PathProgramCache]: Analyzing trace with hash -95415488, now seen corresponding path program 2 times [2018-11-28 11:33:35,191 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:33:35,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:33:35,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:35,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:33:35,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:33:35,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:33:35,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:33:35,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:33:35,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:33:35,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:33:35,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:35,229 INFO L87 Difference]: Start difference. First operand 464 states and 1269 transitions. Second operand 3 states. [2018-11-28 11:33:35,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:33:35,293 INFO L93 Difference]: Finished difference Result 509 states and 1348 transitions. [2018-11-28 11:33:35,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:33:35,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-11-28 11:33:35,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:33:35,295 INFO L225 Difference]: With dead ends: 509 [2018-11-28 11:33:35,296 INFO L226 Difference]: Without dead ends: 482 [2018-11-28 11:33:35,296 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:35,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2018-11-28 11:33:35,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 464. [2018-11-28 11:33:35,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2018-11-28 11:33:35,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1224 transitions. [2018-11-28 11:33:35,309 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1224 transitions. Word has length 32 [2018-11-28 11:33:35,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:33:35,309 INFO L480 AbstractCegarLoop]: Abstraction has 464 states and 1224 transitions. [2018-11-28 11:33:35,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:33:35,309 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1224 transitions. [2018-11-28 11:33:35,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 11:33:35,311 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:33:35,311 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] [2018-11-28 11:33:35,313 INFO L423 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:33:35,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:33:35,313 INFO L82 PathProgramCache]: Analyzing trace with hash 896186436, now seen corresponding path program 3 times [2018-11-28 11:33:35,313 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:33:35,314 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:33:35,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:35,316 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:33:35,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:33:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:33:35,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:33:35,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:33:35,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:33:35,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:33:35,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:35,357 INFO L87 Difference]: Start difference. First operand 464 states and 1224 transitions. Second operand 3 states. [2018-11-28 11:33:35,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:33:35,398 INFO L93 Difference]: Finished difference Result 434 states and 1105 transitions. [2018-11-28 11:33:35,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:33:35,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-11-28 11:33:35,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:33:35,401 INFO L225 Difference]: With dead ends: 434 [2018-11-28 11:33:35,401 INFO L226 Difference]: Without dead ends: 434 [2018-11-28 11:33:35,401 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:35,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-11-28 11:33:35,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-11-28 11:33:35,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-11-28 11:33:35,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1105 transitions. [2018-11-28 11:33:35,412 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1105 transitions. Word has length 32 [2018-11-28 11:33:35,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:33:35,413 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 1105 transitions. [2018-11-28 11:33:35,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:33:35,413 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1105 transitions. [2018-11-28 11:33:35,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 11:33:35,414 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:33:35,414 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] [2018-11-28 11:33:35,415 INFO L423 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:33:35,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:33:35,415 INFO L82 PathProgramCache]: Analyzing trace with hash -222418620, now seen corresponding path program 4 times [2018-11-28 11:33:35,415 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:33:35,415 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:33:35,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:35,417 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:33:35,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:33:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:33:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:33:35,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:33:35,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:33:35,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:33:35,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:33:35,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:35,445 INFO L87 Difference]: Start difference. First operand 434 states and 1105 transitions. Second operand 3 states. [2018-11-28 11:33:35,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:33:35,479 INFO L93 Difference]: Finished difference Result 305 states and 788 transitions. [2018-11-28 11:33:35,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:33:35,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-11-28 11:33:35,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:33:35,480 INFO L225 Difference]: With dead ends: 305 [2018-11-28 11:33:35,480 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 11:33:35,480 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:33:35,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 11:33:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 11:33:35,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 11:33:35,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 11:33:35,481 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-28 11:33:35,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:33:35,482 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:33:35,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:33:35,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:33:35,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 11:33:35,484 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 11:33:35,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:33:35 BasicIcfg [2018-11-28 11:33:35,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:33:35,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:33:35,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:33:35,487 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:33:35,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:33:34" (3/4) ... [2018-11-28 11:33:35,490 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 11:33:35,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2018-11-28 11:33:35,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-11-28 11:33:35,500 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-28 11:33:35,500 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 11:33:35,534 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_33e481c9-8d55-44b4-9684-230480485c5b/bin-2019/uautomizer/witness.graphml [2018-11-28 11:33:35,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:33:35,534 INFO L168 Benchmark]: Toolchain (without parser) took 1856.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.6 MB in the beginning and 940.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 147.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:33:35,535 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:33:35,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:33:35,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.59 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. [2018-11-28 11:33:35,536 INFO L168 Benchmark]: Boogie Preprocessor took 21.85 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. [2018-11-28 11:33:35,537 INFO L168 Benchmark]: RCFGBuilder took 347.51 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:33:35,537 INFO L168 Benchmark]: TraceAbstraction took 1050.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 943.5 MB in the end (delta: 143.9 MB). Peak memory consumption was 143.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:33:35,538 INFO L168 Benchmark]: Witness Printer took 47.42 ms. Allocated memory is still 1.2 GB. Free memory was 943.5 MB in the beginning and 940.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:33:35,540 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 353.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.59 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 21.85 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. * RCFGBuilder took 347.51 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1050.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 943.5 MB in the end (delta: 143.9 MB). Peak memory consumption was 143.9 MB. Max. memory is 11.5 GB. * Witness Printer took 47.42 ms. Allocated memory is still 1.2 GB. Free memory was 943.5 MB in the beginning and 940.2 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: 664]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 648]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 664]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 648]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 101 locations, 4 error locations. SAFE Result, 0.9s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 523 SDtfs, 185 SDslu, 225 SDs, 0 SdLazy, 82 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1154occurred 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, 7 MinimizatonAttempts, 72 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 6437 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...