./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski.i -s /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/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 e53ed3e60647ae986bdffbbdb754e5112804a196 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:47:18,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:47:18,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:47:18,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:47:18,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:47:18,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:47:18,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:47:18,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:47:18,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:47:18,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:47:18,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:47:18,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:47:18,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:47:18,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:47:18,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:47:18,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:47:18,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:47:18,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:47:18,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:47:18,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:47:18,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:47:18,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:47:18,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:47:18,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:47:18,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:47:18,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:47:18,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:47:18,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:47:18,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:47:18,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:47:18,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:47:18,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:47:18,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:47:18,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:47:18,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:47:18,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:47:18,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:47:18,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:47:18,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:47:18,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:47:18,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:47:18,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:47:18,583 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:47:18,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:47:18,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:47:18,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:47:18,585 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:47:18,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:47:18,586 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:47:18,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:47:18,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:47:18,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:47:18,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:47:18,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:47:18,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:47:18,588 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:47:18,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:47:18,588 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:47:18,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:47:18,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:47:18,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:47:18,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:47:18,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:47:18,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:47:18,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:47:18,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:47:18,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:47:18,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:47:18,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:47:18,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:47:18,591 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_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/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 -> e53ed3e60647ae986bdffbbdb754e5112804a196 [2019-11-25 08:47:18,762 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:47:18,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:47:18,775 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:47:18,776 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:47:18,776 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:47:18,777 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/szymanski.i [2019-11-25 08:47:18,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/bin/uautomizer/data/c580624ac/b655847fa60246278a7786361f995ca7/FLAGa9af8ecb7 [2019-11-25 08:47:19,275 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:47:19,276 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/sv-benchmarks/c/pthread-atomic/szymanski.i [2019-11-25 08:47:19,298 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/bin/uautomizer/data/c580624ac/b655847fa60246278a7786361f995ca7/FLAGa9af8ecb7 [2019-11-25 08:47:19,665 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/bin/uautomizer/data/c580624ac/b655847fa60246278a7786361f995ca7 [2019-11-25 08:47:19,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:47:19,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:47:19,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:19,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:47:19,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:47:19,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:19" (1/1) ... [2019-11-25 08:47:19,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248510b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:19, skipping insertion in model container [2019-11-25 08:47:19,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:19" (1/1) ... [2019-11-25 08:47:19,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:47:19,742 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:47:20,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:20,144 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:47:20,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:20,253 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:47:20,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20 WrapperNode [2019-11-25 08:47:20,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:20,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:20,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:47:20,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:47:20,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20" (1/1) ... [2019-11-25 08:47:20,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20" (1/1) ... [2019-11-25 08:47:20,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:20,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:47:20,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:47:20,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:47:20,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20" (1/1) ... [2019-11-25 08:47:20,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20" (1/1) ... [2019-11-25 08:47:20,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20" (1/1) ... [2019-11-25 08:47:20,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20" (1/1) ... [2019-11-25 08:47:20,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20" (1/1) ... [2019-11-25 08:47:20,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20" (1/1) ... [2019-11-25 08:47:20,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20" (1/1) ... [2019-11-25 08:47:20,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:47:20,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:47:20,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:47:20,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:47:20,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/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 [2019-11-25 08:47:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:47:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-11-25 08:47:20,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-11-25 08:47:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-11-25 08:47:20,422 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-11-25 08:47:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:47:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:47:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:47:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:47:20,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:47:20,428 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:47:20,810 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:47:20,810 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-25 08:47:20,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:20 BoogieIcfgContainer [2019-11-25 08:47:20,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:47:20,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:47:20,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:47:20,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:47:20,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:47:19" (1/3) ... [2019-11-25 08:47:20,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a25f0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:47:20, skipping insertion in model container [2019-11-25 08:47:20,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:20" (2/3) ... [2019-11-25 08:47:20,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a25f0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:47:20, skipping insertion in model container [2019-11-25 08:47:20,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:20" (3/3) ... [2019-11-25 08:47:20,819 INFO L109 eAbstractionObserver]: Analyzing ICFG szymanski.i [2019-11-25 08:47:20,855 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,855 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,856 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,856 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,857 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,857 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,857 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,858 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,858 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,858 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,859 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,859 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,863 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,863 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,863 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,864 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,865 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,865 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,866 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,866 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,866 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,867 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,867 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,868 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,868 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,868 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,868 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,870 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,870 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,871 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,871 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,871 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,872 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,872 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,873 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:20,918 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:47:20,918 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:47:20,925 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-25 08:47:20,934 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-25 08:47:20,949 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:47:20,949 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:47:20,949 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:47:20,949 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:47:20,949 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:47:20,949 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:47:20,950 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:47:20,950 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:47:20,963 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 150 places, 205 transitions [2019-11-25 08:47:21,087 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1155 states. [2019-11-25 08:47:21,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states. [2019-11-25 08:47:21,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-25 08:47:21,099 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:21,099 INFO L410 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] [2019-11-25 08:47:21,100 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:21,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:21,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1948320503, now seen corresponding path program 1 times [2019-11-25 08:47:21,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:21,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563049717] [2019-11-25 08:47:21,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:21,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:21,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563049717] [2019-11-25 08:47:21,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:21,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:47:21,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660926640] [2019-11-25 08:47:21,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:47:21,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:21,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:47:21,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:47:21,277 INFO L87 Difference]: Start difference. First operand 1155 states. Second operand 2 states. [2019-11-25 08:47:21,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:21,329 INFO L93 Difference]: Finished difference Result 1155 states and 3406 transitions. [2019-11-25 08:47:21,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:47:21,330 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-11-25 08:47:21,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:21,361 INFO L225 Difference]: With dead ends: 1155 [2019-11-25 08:47:21,362 INFO L226 Difference]: Without dead ends: 1041 [2019-11-25 08:47:21,363 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:47:21,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2019-11-25 08:47:21,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2019-11-25 08:47:21,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2019-11-25 08:47:21,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 3100 transitions. [2019-11-25 08:47:21,503 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 3100 transitions. Word has length 22 [2019-11-25 08:47:21,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:21,504 INFO L462 AbstractCegarLoop]: Abstraction has 1041 states and 3100 transitions. [2019-11-25 08:47:21,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:47:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 3100 transitions. [2019-11-25 08:47:21,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-25 08:47:21,506 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:21,507 INFO L410 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] [2019-11-25 08:47:21,507 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:21,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:21,507 INFO L82 PathProgramCache]: Analyzing trace with hash -205480377, now seen corresponding path program 1 times [2019-11-25 08:47:21,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:21,508 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459076720] [2019-11-25 08:47:21,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:21,602 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459076720] [2019-11-25 08:47:21,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:21,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:47:21,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635242457] [2019-11-25 08:47:21,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:47:21,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:21,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:47:21,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:21,604 INFO L87 Difference]: Start difference. First operand 1041 states and 3100 transitions. Second operand 3 states. [2019-11-25 08:47:21,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:21,666 INFO L93 Difference]: Finished difference Result 1056 states and 3073 transitions. [2019-11-25 08:47:21,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:47:21,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-25 08:47:21,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:21,679 INFO L225 Difference]: With dead ends: 1056 [2019-11-25 08:47:21,679 INFO L226 Difference]: Without dead ends: 858 [2019-11-25 08:47:21,680 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:21,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2019-11-25 08:47:21,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 804. [2019-11-25 08:47:21,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2019-11-25 08:47:21,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 2363 transitions. [2019-11-25 08:47:21,718 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 2363 transitions. Word has length 22 [2019-11-25 08:47:21,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:21,718 INFO L462 AbstractCegarLoop]: Abstraction has 804 states and 2363 transitions. [2019-11-25 08:47:21,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:47:21,718 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 2363 transitions. [2019-11-25 08:47:21,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-25 08:47:21,721 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:21,722 INFO L410 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] [2019-11-25 08:47:21,722 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:21,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:21,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1025905039, now seen corresponding path program 1 times [2019-11-25 08:47:21,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:21,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237019125] [2019-11-25 08:47:21,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:21,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:21,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237019125] [2019-11-25 08:47:21,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:21,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:47:21,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370462557] [2019-11-25 08:47:21,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:47:21,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:21,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:47:21,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:21,795 INFO L87 Difference]: Start difference. First operand 804 states and 2363 transitions. Second operand 3 states. [2019-11-25 08:47:21,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:21,817 INFO L93 Difference]: Finished difference Result 744 states and 2156 transitions. [2019-11-25 08:47:21,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:47:21,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-11-25 08:47:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:21,822 INFO L225 Difference]: With dead ends: 744 [2019-11-25 08:47:21,822 INFO L226 Difference]: Without dead ends: 531 [2019-11-25 08:47:21,823 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:21,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2019-11-25 08:47:21,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2019-11-25 08:47:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2019-11-25 08:47:21,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 1533 transitions. [2019-11-25 08:47:21,841 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 1533 transitions. Word has length 25 [2019-11-25 08:47:21,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:21,842 INFO L462 AbstractCegarLoop]: Abstraction has 531 states and 1533 transitions. [2019-11-25 08:47:21,843 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:47:21,843 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 1533 transitions. [2019-11-25 08:47:21,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:47:21,846 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:21,846 INFO L410 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] [2019-11-25 08:47:21,846 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:21,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:21,847 INFO L82 PathProgramCache]: Analyzing trace with hash 708351156, now seen corresponding path program 1 times [2019-11-25 08:47:21,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:21,847 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119786319] [2019-11-25 08:47:21,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:21,967 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119786319] [2019-11-25 08:47:21,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:21,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:47:21,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321967868] [2019-11-25 08:47:21,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:47:21,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:21,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:47:21,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:21,969 INFO L87 Difference]: Start difference. First operand 531 states and 1533 transitions. Second operand 3 states. [2019-11-25 08:47:22,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:22,021 INFO L93 Difference]: Finished difference Result 573 states and 1627 transitions. [2019-11-25 08:47:22,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:47:22,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-25 08:47:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:22,027 INFO L225 Difference]: With dead ends: 573 [2019-11-25 08:47:22,027 INFO L226 Difference]: Without dead ends: 555 [2019-11-25 08:47:22,027 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:22,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2019-11-25 08:47:22,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2019-11-25 08:47:22,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2019-11-25 08:47:22,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1570 transitions. [2019-11-25 08:47:22,048 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1570 transitions. Word has length 33 [2019-11-25 08:47:22,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:22,049 INFO L462 AbstractCegarLoop]: Abstraction has 555 states and 1570 transitions. [2019-11-25 08:47:22,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:47:22,049 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1570 transitions. [2019-11-25 08:47:22,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:47:22,054 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:22,054 INFO L410 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] [2019-11-25 08:47:22,054 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:22,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:22,055 INFO L82 PathProgramCache]: Analyzing trace with hash 40202804, now seen corresponding path program 1 times [2019-11-25 08:47:22,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:22,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081139571] [2019-11-25 08:47:22,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:22,122 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081139571] [2019-11-25 08:47:22,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:22,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:47:22,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962077513] [2019-11-25 08:47:22,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:47:22,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:22,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:47:22,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:22,124 INFO L87 Difference]: Start difference. First operand 555 states and 1570 transitions. Second operand 3 states. [2019-11-25 08:47:22,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:22,167 INFO L93 Difference]: Finished difference Result 612 states and 1683 transitions. [2019-11-25 08:47:22,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:47:22,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-25 08:47:22,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:22,172 INFO L225 Difference]: With dead ends: 612 [2019-11-25 08:47:22,172 INFO L226 Difference]: Without dead ends: 477 [2019-11-25 08:47:22,172 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:22,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2019-11-25 08:47:22,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 471. [2019-11-25 08:47:22,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2019-11-25 08:47:22,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 1217 transitions. [2019-11-25 08:47:22,191 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 1217 transitions. Word has length 33 [2019-11-25 08:47:22,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:22,192 INFO L462 AbstractCegarLoop]: Abstraction has 471 states and 1217 transitions. [2019-11-25 08:47:22,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:47:22,192 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 1217 transitions. [2019-11-25 08:47:22,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:47:22,194 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:22,194 INFO L410 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] [2019-11-25 08:47:22,194 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:22,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:22,195 INFO L82 PathProgramCache]: Analyzing trace with hash -782667086, now seen corresponding path program 2 times [2019-11-25 08:47:22,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:22,195 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11764426] [2019-11-25 08:47:22,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:22,230 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11764426] [2019-11-25 08:47:22,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:22,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:47:22,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343426008] [2019-11-25 08:47:22,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:47:22,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:22,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:47:22,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:22,232 INFO L87 Difference]: Start difference. First operand 471 states and 1217 transitions. Second operand 3 states. [2019-11-25 08:47:22,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:22,271 INFO L93 Difference]: Finished difference Result 441 states and 1111 transitions. [2019-11-25 08:47:22,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:47:22,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-25 08:47:22,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:22,274 INFO L225 Difference]: With dead ends: 441 [2019-11-25 08:47:22,275 INFO L226 Difference]: Without dead ends: 441 [2019-11-25 08:47:22,275 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:22,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2019-11-25 08:47:22,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2019-11-25 08:47:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-11-25 08:47:22,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 1111 transitions. [2019-11-25 08:47:22,290 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 1111 transitions. Word has length 33 [2019-11-25 08:47:22,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:22,290 INFO L462 AbstractCegarLoop]: Abstraction has 441 states and 1111 transitions. [2019-11-25 08:47:22,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:47:22,290 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 1111 transitions. [2019-11-25 08:47:22,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:47:22,292 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:22,292 INFO L410 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] [2019-11-25 08:47:22,292 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:22,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:22,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1288484618, now seen corresponding path program 3 times [2019-11-25 08:47:22,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:22,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340623957] [2019-11-25 08:47:22,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:22,339 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340623957] [2019-11-25 08:47:22,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:22,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:47:22,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140911321] [2019-11-25 08:47:22,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:47:22,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:22,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:47:22,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:22,341 INFO L87 Difference]: Start difference. First operand 441 states and 1111 transitions. Second operand 3 states. [2019-11-25 08:47:22,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:22,369 INFO L93 Difference]: Finished difference Result 288 states and 739 transitions. [2019-11-25 08:47:22,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:47:22,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-25 08:47:22,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:22,370 INFO L225 Difference]: With dead ends: 288 [2019-11-25 08:47:22,370 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:47:22,371 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:47:22,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:47:22,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:47:22,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:47:22,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:47:22,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-25 08:47:22,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:22,372 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:22,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:47:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:47:22,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:47:22,375 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:47:22,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:47:22 BasicIcfg [2019-11-25 08:47:22,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:47:22,379 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:47:22,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:47:22,380 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:47:22,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:20" (3/4) ... [2019-11-25 08:47:22,385 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:47:22,406 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2019-11-25 08:47:22,413 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-11-25 08:47:22,416 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-25 08:47:22,417 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:47:22,417 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:47:22,452 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_19cda041-c2a4-40cf-ac4c-cb236a8f7ce6/bin/uautomizer/witness.graphml [2019-11-25 08:47:22,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:47:22,454 INFO L168 Benchmark]: Toolchain (without parser) took 2784.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 943.4 MB in the beginning and 912.6 MB in the end (delta: 30.7 MB). Peak memory consumption was 179.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:22,454 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-25 08:47:22,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -170.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:22,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.25 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. [2019-11-25 08:47:22,456 INFO L168 Benchmark]: Boogie Preprocessor took 53.95 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:22,456 INFO L168 Benchmark]: RCFGBuilder took 462.83 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:22,457 INFO L168 Benchmark]: TraceAbstraction took 1566.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.6 MB in the end (delta: 172.1 MB). Peak memory consumption was 172.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:22,457 INFO L168 Benchmark]: Witness Printer took 72.86 ms. Allocated memory is still 1.2 GB. Free memory is still 912.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:22,460 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 579.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -170.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.25 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 53.95 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 462.83 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1566.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.6 MB in the end (delta: 172.1 MB). Peak memory consumption was 172.1 MB. Max. memory is 11.5 GB. * Witness Printer took 72.86 ms. Allocated memory is still 1.2 GB. Free memory is still 912.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 174 locations, 8 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 529 SDtfs, 175 SDslu, 240 SDs, 0 SdLazy, 81 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1155occurred 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: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 60 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 6668 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...