./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe025_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe025_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/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 e582d929204997136f783dc3bbc5b7d5f0ce2f78 ................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:02:48,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:02:48,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:02:48,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:02:48,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:02:48,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:02:48,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:02:48,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:02:48,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:02:48,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:02:48,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:02:48,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:02:48,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:02:48,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:02:48,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:02:48,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:02:48,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:02:48,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:02:48,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:02:48,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:02:48,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:02:48,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:02:48,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:02:48,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:02:48,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:02:48,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:02:48,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:02:48,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:02:48,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:02:48,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:02:48,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:02:48,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:02:48,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:02:48,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:02:48,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:02:48,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:02:48,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:02:48,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:02:48,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:02:48,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:02:48,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:02:48,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:02:48,106 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:02:48,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:02:48,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:02:48,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:02:48,117 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:02:48,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:02:48,118 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:02:48,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:02:48,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:02:48,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:02:48,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:02:48,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:02:48,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:02:48,122 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:02:48,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:02:48,122 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:02:48,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:02:48,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:02:48,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:02:48,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:02:48,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:02:48,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:02:48,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:02:48,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:02:48,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:02:48,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:02:48,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:02:48,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:02:48,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/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 -> e582d929204997136f783dc3bbc5b7d5f0ce2f78 [2019-11-15 23:02:48,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:02:48,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:02:48,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:02:48,181 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:02:48,182 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:02:48,182 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe025_tso.opt.i [2019-11-15 23:02:48,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/uautomizer/data/d8a6d84de/a924300f3478435dabce03fc02b10a91/FLAGdc5c53e1b [2019-11-15 23:02:48,690 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:02:48,691 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/sv-benchmarks/c/pthread-wmm/safe025_tso.opt.i [2019-11-15 23:02:48,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/uautomizer/data/d8a6d84de/a924300f3478435dabce03fc02b10a91/FLAGdc5c53e1b [2019-11-15 23:02:48,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/uautomizer/data/d8a6d84de/a924300f3478435dabce03fc02b10a91 [2019-11-15 23:02:48,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:02:48,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:02:48,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:02:48,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:02:48,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:02:48,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:02:48" (1/1) ... [2019-11-15 23:02:48,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d3c0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:48, skipping insertion in model container [2019-11-15 23:02:48,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:02:48" (1/1) ... [2019-11-15 23:02:49,004 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:02:49,050 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:02:49,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:02:49,452 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:02:49,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:02:49,587 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:02:49,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49 WrapperNode [2019-11-15 23:02:49,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:02:49,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:02:49,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:02:49,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:02:49,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49" (1/1) ... [2019-11-15 23:02:49,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49" (1/1) ... [2019-11-15 23:02:49,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:02:49,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:02:49,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:02:49,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:02:49,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49" (1/1) ... [2019-11-15 23:02:49,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49" (1/1) ... [2019-11-15 23:02:49,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49" (1/1) ... [2019-11-15 23:02:49,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49" (1/1) ... [2019-11-15 23:02:49,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49" (1/1) ... [2019-11-15 23:02:49,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49" (1/1) ... [2019-11-15 23:02:49,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49" (1/1) ... [2019-11-15 23:02:49,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:02:49,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:02:49,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:02:49,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:02:49,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/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 [2019-11-15 23:02:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:02:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 23:02:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:02:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:02:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 23:02:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 23:02:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 23:02:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 23:02:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-15 23:02:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-15 23:02:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 23:02:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:02:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:02:49,722 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 23:02:50,132 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:02:50,132 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 23:02:50,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:02:50 BoogieIcfgContainer [2019-11-15 23:02:50,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:02:50,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:02:50,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:02:50,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:02:50,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:02:48" (1/3) ... [2019-11-15 23:02:50,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d3a03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:02:50, skipping insertion in model container [2019-11-15 23:02:50,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:02:49" (2/3) ... [2019-11-15 23:02:50,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d3a03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:02:50, skipping insertion in model container [2019-11-15 23:02:50,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:02:50" (3/3) ... [2019-11-15 23:02:50,140 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_tso.opt.i [2019-11-15 23:02:50,169 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,170 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,170 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,170 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,171 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,171 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,171 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,171 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,172 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,172 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,172 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,172 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,173 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,173 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,173 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,173 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,174 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,174 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:02:50,183 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 23:02:50,184 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:02:50,191 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:02:50,201 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:02:50,219 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:02:50,219 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:02:50,219 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:02:50,220 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:02:50,220 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:02:50,220 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:02:50,220 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:02:50,220 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:02:50,229 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 50 transitions [2019-11-15 23:02:50,308 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-15 23:02:50,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-15 23:02:50,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 23:02:50,324 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:02:50,325 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:02:50,326 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:02:50,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:02:50,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1842840898, now seen corresponding path program 1 times [2019-11-15 23:02:50,339 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:02:50,339 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97272600] [2019-11-15 23:02:50,340 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:02:50,340 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:02:50,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:02:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:02:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:02:50,625 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97272600] [2019-11-15 23:02:50,625 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:02:50,626 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:02:50,626 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540561270] [2019-11-15 23:02:50,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:02:50,630 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:02:50,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:02:50,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:02:50,650 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-15 23:02:50,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:02:50,780 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-15 23:02:50,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:02:50,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-15 23:02:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:02:50,804 INFO L225 Difference]: With dead ends: 1294 [2019-11-15 23:02:50,804 INFO L226 Difference]: Without dead ends: 600 [2019-11-15 23:02:50,806 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:02:50,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-15 23:02:50,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-15 23:02:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-15 23:02:50,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-15 23:02:50,897 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-15 23:02:50,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:02:50,897 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-15 23:02:50,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:02:50,898 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-15 23:02:50,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 23:02:50,902 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:02:50,902 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:02:50,902 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:02:50,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:02:50,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1602831640, now seen corresponding path program 1 times [2019-11-15 23:02:50,903 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:02:50,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691276972] [2019-11-15 23:02:50,903 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:02:50,903 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:02:50,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:02:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:02:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:02:51,042 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691276972] [2019-11-15 23:02:51,042 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:02:51,042 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:02:51,042 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704179242] [2019-11-15 23:02:51,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:02:51,044 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:02:51,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:02:51,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:02:51,044 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-15 23:02:51,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:02:51,148 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-15 23:02:51,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:02:51,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-15 23:02:51,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:02:51,154 INFO L225 Difference]: With dead ends: 600 [2019-11-15 23:02:51,154 INFO L226 Difference]: Without dead ends: 537 [2019-11-15 23:02:51,155 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:02:51,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-15 23:02:51,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-15 23:02:51,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-15 23:02:51,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-15 23:02:51,204 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-15 23:02:51,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:02:51,205 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-15 23:02:51,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:02:51,206 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-15 23:02:51,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 23:02:51,215 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:02:51,215 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:02:51,215 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:02:51,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:02:51,216 INFO L82 PathProgramCache]: Analyzing trace with hash 885551816, now seen corresponding path program 1 times [2019-11-15 23:02:51,216 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:02:51,216 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913174071] [2019-11-15 23:02:51,216 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:02:51,216 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:02:51,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:02:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:02:51,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:02:51,340 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913174071] [2019-11-15 23:02:51,341 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:02:51,341 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:02:51,341 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808802364] [2019-11-15 23:02:51,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:02:51,342 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:02:51,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:02:51,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:02:51,342 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-15 23:02:51,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:02:51,451 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-15 23:02:51,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:02:51,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-15 23:02:51,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:02:51,455 INFO L225 Difference]: With dead ends: 402 [2019-11-15 23:02:51,455 INFO L226 Difference]: Without dead ends: 348 [2019-11-15 23:02:51,455 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:02:51,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-15 23:02:51,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-15 23:02:51,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-15 23:02:51,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-15 23:02:51,469 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-15 23:02:51,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:02:51,470 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-15 23:02:51,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:02:51,470 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-15 23:02:51,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 23:02:51,471 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:02:51,471 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:02:51,472 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:02:51,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:02:51,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1058177461, now seen corresponding path program 1 times [2019-11-15 23:02:51,472 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:02:51,473 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889004446] [2019-11-15 23:02:51,473 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:02:51,475 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:02:51,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:02:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:02:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:02:51,718 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889004446] [2019-11-15 23:02:51,718 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:02:51,718 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 23:02:51,718 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453008993] [2019-11-15 23:02:51,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:02:51,719 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:02:51,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:02:51,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:02:51,720 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 8 states. [2019-11-15 23:02:51,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:02:51,991 INFO L93 Difference]: Finished difference Result 681 states and 1853 transitions. [2019-11-15 23:02:51,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:02:51,992 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-15 23:02:51,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:02:51,995 INFO L225 Difference]: With dead ends: 681 [2019-11-15 23:02:51,995 INFO L226 Difference]: Without dead ends: 327 [2019-11-15 23:02:51,997 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-15 23:02:51,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-11-15 23:02:52,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2019-11-15 23:02:52,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2019-11-15 23:02:52,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 857 transitions. [2019-11-15 23:02:52,010 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 857 transitions. Word has length 33 [2019-11-15 23:02:52,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:02:52,011 INFO L462 AbstractCegarLoop]: Abstraction has 327 states and 857 transitions. [2019-11-15 23:02:52,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:02:52,011 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 857 transitions. [2019-11-15 23:02:52,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 23:02:52,013 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:02:52,014 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:02:52,014 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:02:52,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:02:52,014 INFO L82 PathProgramCache]: Analyzing trace with hash 2043326107, now seen corresponding path program 2 times [2019-11-15 23:02:52,014 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:02:52,015 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427138899] [2019-11-15 23:02:52,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:02:52,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:02:52,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:02:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:02:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:02:52,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427138899] [2019-11-15 23:02:52,198 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:02:52,198 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:02:52,198 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951844826] [2019-11-15 23:02:52,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:02:52,199 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:02:52,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:02:52,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:02:52,200 INFO L87 Difference]: Start difference. First operand 327 states and 857 transitions. Second operand 7 states. [2019-11-15 23:02:52,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:02:52,309 INFO L93 Difference]: Finished difference Result 273 states and 695 transitions. [2019-11-15 23:02:52,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:02:52,309 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-15 23:02:52,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:02:52,310 INFO L225 Difference]: With dead ends: 273 [2019-11-15 23:02:52,310 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:02:52,310 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:02:52,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:02:52,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:02:52,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:02:52,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:02:52,311 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-15 23:02:52,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:02:52,311 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:02:52,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:02:52,312 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:02:52,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:02:52,315 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 23:02:52,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:02:52 BasicIcfg [2019-11-15 23:02:52,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:02:52,317 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:02:52,317 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:02:52,318 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:02:52,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:02:50" (3/4) ... [2019-11-15 23:02:52,322 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:02:52,328 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 23:02:52,328 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 23:02:52,331 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-15 23:02:52,337 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 23:02:52,338 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 23:02:52,409 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e81ca0fe-7334-4942-b104-2d99e87de4c6/bin/uautomizer/witness.graphml [2019-11-15 23:02:52,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:02:52,412 INFO L168 Benchmark]: Toolchain (without parser) took 3423.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 939.4 MB in the beginning and 887.0 MB in the end (delta: 52.4 MB). Peak memory consumption was 189.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:02:52,415 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:02:52,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:02:52,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:02:52,416 INFO L168 Benchmark]: Boogie Preprocessor took 26.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:02:52,417 INFO L168 Benchmark]: RCFGBuilder took 478.69 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:02:52,418 INFO L168 Benchmark]: TraceAbstraction took 2182.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 887.0 MB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:02:52,418 INFO L168 Benchmark]: Witness Printer took 92.55 ms. Allocated memory is still 1.2 GB. Free memory is still 887.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:02:52,424 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 599.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.58 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 478.69 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2182.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 887.0 MB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 11.5 GB. * Witness Printer took 92.55 ms. Allocated memory is still 1.2 GB. Free memory is still 887.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 233 SDtfs, 350 SDslu, 623 SDs, 0 SdLazy, 91 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 14030 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...