./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe006_tso.oepc.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_7afcca04-bfb8-416f-8ff0-f3b60703795d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe006_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/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 1c3de4e133879009de4df67b5254da93474effda ................................................................................................................................................................................................................................................................................................................................................................................................ 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 21:01:21,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:01:21,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:01:21,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:01:21,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:01:21,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:01:21,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:01:21,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:01:21,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:01:21,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:01:21,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:01:21,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:01:21,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:01:21,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:01:21,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:01:21,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:01:21,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:01:21,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:01:21,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:01:21,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:01:21,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:01:21,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:01:21,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:01:21,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:01:21,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:01:21,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:01:21,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:01:21,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:01:21,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:01:21,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:01:21,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:01:21,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:01:21,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:01:21,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:01:21,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:01:21,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:01:21,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:01:21,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:01:21,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:01:21,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:01:21,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:01:21,679 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 21:01:21,696 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:01:21,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:01:21,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:01:21,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:01:21,699 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:01:21,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:01:21,699 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:01:21,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:01:21,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:01:21,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:01:21,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:01:21,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:01:21,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:01:21,701 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:01:21,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:01:21,702 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:01:21,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:01:21,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:01:21,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:01:21,703 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:01:21,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:01:21,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:01:21,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:01:21,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:01:21,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:01:21,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:01:21,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:01:21,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:01:21,706 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_7afcca04-bfb8-416f-8ff0-f3b60703795d/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 -> 1c3de4e133879009de4df67b5254da93474effda [2019-11-15 21:01:21,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:01:21,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:01:21,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:01:21,765 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:01:21,766 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:01:21,766 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe006_tso.oepc.i [2019-11-15 21:01:21,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/bin/uautomizer/data/3d7f99264/260fae7f807946969fd41cfd8ee4e76d/FLAGbb012506c [2019-11-15 21:01:22,468 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:01:22,469 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/sv-benchmarks/c/pthread-wmm/safe006_tso.oepc.i [2019-11-15 21:01:22,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/bin/uautomizer/data/3d7f99264/260fae7f807946969fd41cfd8ee4e76d/FLAGbb012506c [2019-11-15 21:01:22,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/bin/uautomizer/data/3d7f99264/260fae7f807946969fd41cfd8ee4e76d [2019-11-15 21:01:22,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:01:22,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:01:22,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:01:22,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:01:22,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:01:22,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:01:22" (1/1) ... [2019-11-15 21:01:22,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbd9738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:22, skipping insertion in model container [2019-11-15 21:01:22,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:01:22" (1/1) ... [2019-11-15 21:01:22,719 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:01:22,772 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:01:23,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:01:23,273 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:01:23,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:01:23,416 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:01:23,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23 WrapperNode [2019-11-15 21:01:23,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:01:23,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:01:23,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:01:23,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:01:23,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23" (1/1) ... [2019-11-15 21:01:23,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23" (1/1) ... [2019-11-15 21:01:23,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:01:23,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:01:23,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:01:23,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:01:23,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23" (1/1) ... [2019-11-15 21:01:23,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23" (1/1) ... [2019-11-15 21:01:23,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23" (1/1) ... [2019-11-15 21:01:23,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23" (1/1) ... [2019-11-15 21:01:23,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23" (1/1) ... [2019-11-15 21:01:23,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23" (1/1) ... [2019-11-15 21:01:23,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23" (1/1) ... [2019-11-15 21:01:23,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:01:23,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:01:23,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:01:23,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:01:23,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/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 21:01:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:01:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 21:01:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:01:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:01:23,622 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 21:01:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 21:01:23,622 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 21:01:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 21:01:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 21:01:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:01:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:01:23,626 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 21:01:24,051 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:01:24,051 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 21:01:24,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:01:24 BoogieIcfgContainer [2019-11-15 21:01:24,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:01:24,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:01:24,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:01:24,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:01:24,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:01:22" (1/3) ... [2019-11-15 21:01:24,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a224dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:01:24, skipping insertion in model container [2019-11-15 21:01:24,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:01:23" (2/3) ... [2019-11-15 21:01:24,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a224dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:01:24, skipping insertion in model container [2019-11-15 21:01:24,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:01:24" (3/3) ... [2019-11-15 21:01:24,061 INFO L109 eAbstractionObserver]: Analyzing ICFG safe006_tso.oepc.i [2019-11-15 21:01:24,099 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,099 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,099 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,100 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,100 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,101 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,101 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,101 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,102 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,102 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,102 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,103 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:01:24,118 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 21:01:24,118 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:01:24,127 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:01:24,141 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:01:24,163 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:01:24,163 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:01:24,163 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:01:24,163 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:01:24,163 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:01:24,164 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:01:24,164 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:01:24,164 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:01:24,174 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 40 transitions [2019-11-15 21:01:24,226 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 286 states. [2019-11-15 21:01:24,229 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2019-11-15 21:01:24,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 21:01:24,241 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:01:24,242 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] [2019-11-15 21:01:24,247 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:01:24,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:01:24,255 INFO L82 PathProgramCache]: Analyzing trace with hash 68919135, now seen corresponding path program 1 times [2019-11-15 21:01:24,268 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:01:24,269 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744225697] [2019-11-15 21:01:24,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:24,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:24,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:01:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:24,766 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 21:01:24,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744225697] [2019-11-15 21:01:24,768 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:01:24,769 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 21:01:24,769 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590010402] [2019-11-15 21:01:24,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:01:24,774 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:01:24,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:01:24,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:01:24,795 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 4 states. [2019-11-15 21:01:24,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:01:24,897 INFO L93 Difference]: Finished difference Result 287 states and 646 transitions. [2019-11-15 21:01:24,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:01:24,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-11-15 21:01:24,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:01:24,915 INFO L225 Difference]: With dead ends: 287 [2019-11-15 21:01:24,915 INFO L226 Difference]: Without dead ends: 151 [2019-11-15 21:01:24,918 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 21:01:24,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-11-15 21:01:24,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2019-11-15 21:01:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-15 21:01:24,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 325 transitions. [2019-11-15 21:01:24,975 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 325 transitions. Word has length 25 [2019-11-15 21:01:24,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:01:24,976 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 325 transitions. [2019-11-15 21:01:24,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:01:24,977 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 325 transitions. [2019-11-15 21:01:24,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 21:01:24,979 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:01:24,980 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] [2019-11-15 21:01:24,980 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:01:24,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:01:24,981 INFO L82 PathProgramCache]: Analyzing trace with hash -899884187, now seen corresponding path program 1 times [2019-11-15 21:01:24,981 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:01:24,981 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481982040] [2019-11-15 21:01:24,981 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:24,982 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:24,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:01:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:25,151 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 21:01:25,152 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481982040] [2019-11-15 21:01:25,152 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:01:25,152 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:01:25,153 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090106555] [2019-11-15 21:01:25,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:01:25,157 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:01:25,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:01:25,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:01:25,159 INFO L87 Difference]: Start difference. First operand 151 states and 325 transitions. Second operand 5 states. [2019-11-15 21:01:25,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:01:25,279 INFO L93 Difference]: Finished difference Result 124 states and 241 transitions. [2019-11-15 21:01:25,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:01:25,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-15 21:01:25,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:01:25,288 INFO L225 Difference]: With dead ends: 124 [2019-11-15 21:01:25,293 INFO L226 Difference]: Without dead ends: 109 [2019-11-15 21:01:25,294 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:01:25,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-15 21:01:25,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-11-15 21:01:25,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-15 21:01:25,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 213 transitions. [2019-11-15 21:01:25,324 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 213 transitions. Word has length 26 [2019-11-15 21:01:25,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:01:25,325 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 213 transitions. [2019-11-15 21:01:25,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:01:25,325 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 213 transitions. [2019-11-15 21:01:25,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 21:01:25,330 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:01:25,330 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] [2019-11-15 21:01:25,331 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:01:25,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:01:25,331 INFO L82 PathProgramCache]: Analyzing trace with hash 983397802, now seen corresponding path program 1 times [2019-11-15 21:01:25,332 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:01:25,332 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361436860] [2019-11-15 21:01:25,333 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:25,333 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:25,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:01:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:25,618 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 21:01:25,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361436860] [2019-11-15 21:01:25,619 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:01:25,619 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 21:01:25,620 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802627749] [2019-11-15 21:01:25,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:01:25,620 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:01:25,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:01:25,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:01:25,621 INFO L87 Difference]: Start difference. First operand 109 states and 213 transitions. Second operand 8 states. [2019-11-15 21:01:25,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:01:25,821 INFO L93 Difference]: Finished difference Result 163 states and 330 transitions. [2019-11-15 21:01:25,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:01:25,822 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-11-15 21:01:25,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:01:25,824 INFO L225 Difference]: With dead ends: 163 [2019-11-15 21:01:25,824 INFO L226 Difference]: Without dead ends: 94 [2019-11-15 21:01:25,824 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:01:25,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-11-15 21:01:25,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-11-15 21:01:25,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-15 21:01:25,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 183 transitions. [2019-11-15 21:01:25,844 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 183 transitions. Word has length 27 [2019-11-15 21:01:25,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:01:25,845 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 183 transitions. [2019-11-15 21:01:25,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:01:25,845 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 183 transitions. [2019-11-15 21:01:25,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 21:01:25,847 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:01:25,847 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] [2019-11-15 21:01:25,847 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:01:25,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:01:25,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1609190114, now seen corresponding path program 2 times [2019-11-15 21:01:25,848 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:01:25,848 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99615313] [2019-11-15 21:01:25,849 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:25,849 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:25,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:01:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:26,126 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 21:01:26,126 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99615313] [2019-11-15 21:01:26,126 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:01:26,127 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 21:01:26,127 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676078168] [2019-11-15 21:01:26,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:01:26,128 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:01:26,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:01:26,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:01:26,128 INFO L87 Difference]: Start difference. First operand 94 states and 183 transitions. Second operand 8 states. [2019-11-15 21:01:26,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:01:26,291 INFO L93 Difference]: Finished difference Result 76 states and 141 transitions. [2019-11-15 21:01:26,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:01:26,292 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-11-15 21:01:26,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:01:26,292 INFO L225 Difference]: With dead ends: 76 [2019-11-15 21:01:26,293 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:01:26,293 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-15 21:01:26,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:01:26,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:01:26,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:01:26,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:01:26,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-11-15 21:01:26,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:01:26,295 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:01:26,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:01:26,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:01:26,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:01:26,298 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 21:01:26,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:01:26 BasicIcfg [2019-11-15 21:01:26,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:01:26,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:01:26,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:01:26,304 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:01:26,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:01:24" (3/4) ... [2019-11-15 21:01:26,310 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:01:26,319 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 21:01:26,319 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 21:01:26,328 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-15 21:01:26,329 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 21:01:26,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7afcca04-bfb8-416f-8ff0-f3b60703795d/bin/uautomizer/witness.graphml [2019-11-15 21:01:26,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:01:26,403 INFO L168 Benchmark]: Toolchain (without parser) took 3699.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 946.1 MB in the beginning and 992.6 MB in the end (delta: -46.6 MB). Peak memory consumption was 121.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:01:26,404 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:01:26,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:01:26,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.40 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 21:01:26,406 INFO L168 Benchmark]: Boogie Preprocessor took 39.97 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 21:01:26,407 INFO L168 Benchmark]: RCFGBuilder took 531.99 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:01:26,407 INFO L168 Benchmark]: TraceAbstraction took 2248.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.6 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:01:26,408 INFO L168 Benchmark]: Witness Printer took 97.34 ms. Allocated memory is still 1.2 GB. Free memory is still 992.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:01:26,412 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 721.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.40 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 39.97 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 531.99 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2248.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.6 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. * Witness Printer took 97.34 ms. Allocated memory is still 1.2 GB. Free memory is still 992.6 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 5 procedures, 50 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 156 SDslu, 350 SDs, 0 SdLazy, 62 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=286occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 8353 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...