./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe000_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_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe000_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/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 5c92fb673e1abae2508967df9896bc7f2db4e949 ................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:21:44,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:21:44,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:21:44,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:21:44,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:21:44,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:21:44,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:21:44,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:21:44,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:21:44,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:21:44,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:21:44,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:21:44,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:21:44,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:21:44,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:21:44,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:21:44,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:21:44,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:21:44,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:21:44,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:21:44,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:21:44,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:21:44,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:21:44,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:21:44,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:21:44,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:21:44,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:21:44,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:21:44,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:21:44,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:21:44,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:21:44,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:21:44,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:21:44,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:21:44,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:21:44,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:21:44,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:21:44,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:21:44,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:21:44,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:21:44,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:21:44,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:21:44,537 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:21:44,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:21:44,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:21:44,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:21:44,549 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:21:44,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:21:44,549 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:21:44,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:21:44,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:21:44,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:21:44,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:21:44,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:21:44,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:21:44,551 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:21:44,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:21:44,551 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:21:44,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:21:44,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:21:44,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:21:44,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:21:44,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:21:44,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:21:44,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:21:44,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:21:44,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:21:44,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:21:44,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:21:44,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:21:44,556 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_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/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 -> 5c92fb673e1abae2508967df9896bc7f2db4e949 [2019-11-15 22:21:44,581 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:21:44,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:21:44,594 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:21:44,595 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:21:44,595 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:21:44,596 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe000_tso.oepc.i [2019-11-15 22:21:44,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/bin/uautomizer/data/67ae905b4/8c66fdb98d1a42b687d553c4b0a51326/FLAGb56b24176 [2019-11-15 22:21:45,119 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:21:45,120 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/sv-benchmarks/c/pthread-wmm/safe000_tso.oepc.i [2019-11-15 22:21:45,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/bin/uautomizer/data/67ae905b4/8c66fdb98d1a42b687d553c4b0a51326/FLAGb56b24176 [2019-11-15 22:21:45,474 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/bin/uautomizer/data/67ae905b4/8c66fdb98d1a42b687d553c4b0a51326 [2019-11-15 22:21:45,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:21:45,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:21:45,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:21:45,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:21:45,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:21:45,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:21:45" (1/1) ... [2019-11-15 22:21:45,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46020af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:45, skipping insertion in model container [2019-11-15 22:21:45,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:21:45" (1/1) ... [2019-11-15 22:21:45,497 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:21:45,550 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:21:46,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:21:46,042 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:21:46,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:21:46,195 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:21:46,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46 WrapperNode [2019-11-15 22:21:46,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:21:46,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:21:46,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:21:46,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:21:46,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46" (1/1) ... [2019-11-15 22:21:46,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46" (1/1) ... [2019-11-15 22:21:46,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:21:46,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:21:46,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:21:46,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:21:46,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46" (1/1) ... [2019-11-15 22:21:46,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46" (1/1) ... [2019-11-15 22:21:46,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46" (1/1) ... [2019-11-15 22:21:46,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46" (1/1) ... [2019-11-15 22:21:46,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46" (1/1) ... [2019-11-15 22:21:46,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46" (1/1) ... [2019-11-15 22:21:46,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46" (1/1) ... [2019-11-15 22:21:46,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:21:46,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:21:46,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:21:46,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:21:46,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/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 22:21:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:21:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 22:21:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:21:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:21:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 22:21:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 22:21:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 22:21:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 22:21:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-15 22:21:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-15 22:21:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 22:21:46,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:21:46,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:21:46,417 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 22:21:46,774 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:21:46,774 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 22:21:46,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:21:46 BoogieIcfgContainer [2019-11-15 22:21:46,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:21:46,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:21:46,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:21:46,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:21:46,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:21:45" (1/3) ... [2019-11-15 22:21:46,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764254f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:21:46, skipping insertion in model container [2019-11-15 22:21:46,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:21:46" (2/3) ... [2019-11-15 22:21:46,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764254f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:21:46, skipping insertion in model container [2019-11-15 22:21:46,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:21:46" (3/3) ... [2019-11-15 22:21:46,783 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2019-11-15 22:21:46,819 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,819 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,819 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,820 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,820 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,820 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,821 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,821 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,821 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,821 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,822 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,822 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,823 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,823 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,823 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,823 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,823 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,824 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:21:46,836 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 22:21:46,836 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:21:46,845 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:21:46,857 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:21:46,879 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:21:46,880 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:21:46,880 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:21:46,880 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:21:46,880 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:21:46,880 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:21:46,881 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:21:46,881 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:21:46,891 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 50 transitions [2019-11-15 22:21:46,989 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-15 22:21:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-15 22:21:47,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 22:21:47,011 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:21:47,012 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:21:47,014 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:21:47,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:47,020 INFO L82 PathProgramCache]: Analyzing trace with hash 720223975, now seen corresponding path program 1 times [2019-11-15 22:21:47,027 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:47,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467671812] [2019-11-15 22:21:47,028 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:47,028 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:47,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:47,391 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 22:21:47,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467671812] [2019-11-15 22:21:47,392 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:21:47,392 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:21:47,393 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108347714] [2019-11-15 22:21:47,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:21:47,397 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:21:47,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:21:47,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:21:47,413 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-15 22:21:47,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:21:47,514 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-15 22:21:47,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:21:47,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-15 22:21:47,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:21:47,540 INFO L225 Difference]: With dead ends: 1294 [2019-11-15 22:21:47,540 INFO L226 Difference]: Without dead ends: 600 [2019-11-15 22:21:47,542 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 22:21:47,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-15 22:21:47,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-15 22:21:47,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-15 22:21:47,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-15 22:21:47,666 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-15 22:21:47,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:21:47,667 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-15 22:21:47,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:21:47,668 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-15 22:21:47,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 22:21:47,672 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:21:47,672 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:21:47,673 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:21:47,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:47,673 INFO L82 PathProgramCache]: Analyzing trace with hash 850051549, now seen corresponding path program 1 times [2019-11-15 22:21:47,673 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:47,674 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588713402] [2019-11-15 22:21:47,674 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:47,674 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:47,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:47,857 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 22:21:47,857 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588713402] [2019-11-15 22:21:47,858 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:21:47,858 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 22:21:47,858 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843941598] [2019-11-15 22:21:47,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:21:47,860 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:21:47,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:21:47,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:21:47,861 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-15 22:21:47,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:21:47,963 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-15 22:21:47,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:21:47,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-15 22:21:47,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:21:47,972 INFO L225 Difference]: With dead ends: 600 [2019-11-15 22:21:47,972 INFO L226 Difference]: Without dead ends: 537 [2019-11-15 22:21:47,973 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:21:47,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-15 22:21:48,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-15 22:21:48,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-15 22:21:48,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-15 22:21:48,011 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-15 22:21:48,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:21:48,012 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-15 22:21:48,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:21:48,012 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-15 22:21:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 22:21:48,015 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:21:48,015 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:21:48,015 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:21:48,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:48,016 INFO L82 PathProgramCache]: Analyzing trace with hash -335397692, now seen corresponding path program 1 times [2019-11-15 22:21:48,016 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:48,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450877277] [2019-11-15 22:21:48,016 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:48,017 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:48,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:48,158 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 22:21:48,158 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450877277] [2019-11-15 22:21:48,159 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:21:48,159 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 22:21:48,159 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378421411] [2019-11-15 22:21:48,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:21:48,160 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:21:48,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:21:48,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:21:48,161 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-15 22:21:48,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:21:48,290 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-15 22:21:48,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:21:48,293 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-15 22:21:48,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:21:48,298 INFO L225 Difference]: With dead ends: 402 [2019-11-15 22:21:48,299 INFO L226 Difference]: Without dead ends: 348 [2019-11-15 22:21:48,300 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:21:48,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-15 22:21:48,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-15 22:21:48,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-15 22:21:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-15 22:21:48,320 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-15 22:21:48,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:21:48,321 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-15 22:21:48,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:21:48,321 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-15 22:21:48,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 22:21:48,325 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:21:48,326 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:21:48,326 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:21:48,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:48,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1628377498, now seen corresponding path program 1 times [2019-11-15 22:21:48,327 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:48,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945815884] [2019-11-15 22:21:48,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:48,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:48,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:48,578 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 22:21:48,580 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945815884] [2019-11-15 22:21:48,580 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:21:48,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 22:21:48,581 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842947754] [2019-11-15 22:21:48,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:21:48,582 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:21:48,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:21:48,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:21:48,583 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 8 states. [2019-11-15 22:21:48,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:21:48,903 INFO L93 Difference]: Finished difference Result 726 states and 1958 transitions. [2019-11-15 22:21:48,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 22:21:48,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-15 22:21:48,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:21:48,908 INFO L225 Difference]: With dead ends: 726 [2019-11-15 22:21:48,909 INFO L226 Difference]: Without dead ends: 312 [2019-11-15 22:21:48,911 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-15 22:21:48,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2019-11-15 22:21:48,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2019-11-15 22:21:48,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2019-11-15 22:21:48,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 821 transitions. [2019-11-15 22:21:48,927 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 821 transitions. Word has length 33 [2019-11-15 22:21:48,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:21:48,927 INFO L462 AbstractCegarLoop]: Abstraction has 312 states and 821 transitions. [2019-11-15 22:21:48,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:21:48,928 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 821 transitions. [2019-11-15 22:21:48,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 22:21:48,932 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:21:48,932 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:21:48,932 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:21:48,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:21:48,933 INFO L82 PathProgramCache]: Analyzing trace with hash 489398784, now seen corresponding path program 2 times [2019-11-15 22:21:48,933 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:21:48,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619611516] [2019-11-15 22:21:48,934 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:48,934 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:21:48,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:21:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:21:49,167 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 22:21:49,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619611516] [2019-11-15 22:21:49,168 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:21:49,168 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 22:21:49,168 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266058367] [2019-11-15 22:21:49,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:21:49,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:21:49,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:21:49,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:21:49,171 INFO L87 Difference]: Start difference. First operand 312 states and 821 transitions. Second operand 8 states. [2019-11-15 22:21:49,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:21:49,321 INFO L93 Difference]: Finished difference Result 258 states and 659 transitions. [2019-11-15 22:21:49,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 22:21:49,322 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-15 22:21:49,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:21:49,322 INFO L225 Difference]: With dead ends: 258 [2019-11-15 22:21:49,323 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:21:49,323 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 22:21:49,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:21:49,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:21:49,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:21:49,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:21:49,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-15 22:21:49,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:21:49,325 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:21:49,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:21:49,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:21:49,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:21:49,330 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 22:21:49,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:21:49 BasicIcfg [2019-11-15 22:21:49,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:21:49,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:21:49,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:21:49,335 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:21:49,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:21:46" (3/4) ... [2019-11-15 22:21:49,340 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:21:49,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 22:21:49,350 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 22:21:49,359 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-15 22:21:49,365 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 22:21:49,365 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 22:21:49,448 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2f75b3ef-3102-47a3-9ac5-e64e36eebae3/bin/uautomizer/witness.graphml [2019-11-15 22:21:49,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:21:49,456 INFO L168 Benchmark]: Toolchain (without parser) took 3975.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 944.7 MB in the beginning and 910.5 MB in the end (delta: 34.2 MB). Peak memory consumption was 200.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:21:49,456 INFO L168 Benchmark]: CDTParser took 0.23 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 22:21:49,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:21:49,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.52 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 22:21:49,458 INFO L168 Benchmark]: Boogie Preprocessor took 41.63 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:21:49,459 INFO L168 Benchmark]: RCFGBuilder took 450.09 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 22:21:49,460 INFO L168 Benchmark]: TraceAbstraction took 2556.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.5 MB in the end (delta: 194.3 MB). Peak memory consumption was 194.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:21:49,465 INFO L168 Benchmark]: Witness Printer took 119.30 ms. Allocated memory is still 1.2 GB. Free memory is still 910.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:21:49,468 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 716.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.52 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 41.63 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 450.09 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 2556.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.5 MB in the end (delta: 194.3 MB). Peak memory consumption was 194.3 MB. Max. memory is 11.5 GB. * Witness Printer took 119.30 ms. Allocated memory is still 1.2 GB. Free memory is still 910.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 218 SDtfs, 360 SDslu, 569 SDs, 0 SdLazy, 93 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 15822 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...