./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036_power.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/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 da690d55f4c7da6dcbc4e58f51790c40c0dfca9d ........................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:53,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:53,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:53,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:53,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:53,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:53,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:53,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:53,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:53,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:53,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:53,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:53,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:53,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:53,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:53,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:53,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:53,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:53,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:53,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:53,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:53,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:53,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:53,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:53,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:53,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:53,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:53,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:53,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:53,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:53,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:53,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:53,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:53,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:53,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:53,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:53,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:53,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:53,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:53,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:53,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:53,394 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:57:53,405 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:53,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:53,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:53,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:53,406 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:53,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:53,407 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:53,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:53,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:53,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:53,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:53,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:53,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:53,408 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:53,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:53,408 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:53,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:53,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:53,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:53,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:53,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:53,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:53,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:53,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:53,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:53,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:53,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:53,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:53,411 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/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/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 -> da690d55f4c7da6dcbc4e58f51790c40c0dfca9d [2019-10-22 08:57:53,435 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:53,444 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:53,447 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:53,448 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:53,448 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:53,449 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe036_power.opt.i [2019-10-22 08:57:53,493 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/bin/uautomizer/data/532532fc8/e6d6bd077e334a34ba72354ba2f5b471/FLAG3b34d40f3 [2019-10-22 08:57:53,944 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:53,945 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/sv-benchmarks/c/pthread-wmm/safe036_power.opt.i [2019-10-22 08:57:53,958 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/bin/uautomizer/data/532532fc8/e6d6bd077e334a34ba72354ba2f5b471/FLAG3b34d40f3 [2019-10-22 08:57:54,288 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/bin/uautomizer/data/532532fc8/e6d6bd077e334a34ba72354ba2f5b471 [2019-10-22 08:57:54,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:54,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:54,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:54,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:54,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:54,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d34f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54, skipping insertion in model container [2019-10-22 08:57:54,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,311 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:54,346 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:54,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:54,728 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:54,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:54,833 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:54,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54 WrapperNode [2019-10-22 08:57:54,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:54,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:54,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:54,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:54,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:54,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:54,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:54,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:54,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... [2019-10-22 08:57:54,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:54,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:54,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:54,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:54,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/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 [2019-10-22 08:57:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:57:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:57:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:57:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:57:54,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:57:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:57:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:54,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:54,968 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:57:55,232 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:55,232 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:57:55,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:55 BoogieIcfgContainer [2019-10-22 08:57:55,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:55,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:55,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:55,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:55,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:54" (1/3) ... [2019-10-22 08:57:55,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d229bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:55, skipping insertion in model container [2019-10-22 08:57:55,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:54" (2/3) ... [2019-10-22 08:57:55,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d229bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:55, skipping insertion in model container [2019-10-22 08:57:55,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:55" (3/3) ... [2019-10-22 08:57:55,240 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_power.opt.i [2019-10-22 08:57:55,266 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,266 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,266 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,266 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,266 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,267 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,267 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,268 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,269 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,269 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,269 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,269 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,270 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,270 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,270 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,270 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,270 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,270 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,271 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,271 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:55,278 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:57:55,278 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:55,284 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:55,292 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:55,308 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:55,308 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:55,308 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:55,309 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:55,309 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:55,309 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:55,309 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:55,310 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:55,318 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 42 transitions [2019-10-22 08:57:55,357 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 434 states. [2019-10-22 08:57:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states. [2019-10-22 08:57:55,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:57:55,368 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:55,369 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:55,371 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:55,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:55,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1222955299, now seen corresponding path program 1 times [2019-10-22 08:57:55,384 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:55,384 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629914886] [2019-10-22 08:57:55,385 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:55,385 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:55,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:55,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:55,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629914886] [2019-10-22 08:57:55,622 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:55,626 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:55,626 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19992174] [2019-10-22 08:57:55,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:55,631 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:55,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:55,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:55,650 INFO L87 Difference]: Start difference. First operand 434 states. Second operand 4 states. [2019-10-22 08:57:55,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:55,714 INFO L93 Difference]: Finished difference Result 444 states and 1061 transitions. [2019-10-22 08:57:55,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:55,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-10-22 08:57:55,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:55,726 INFO L225 Difference]: With dead ends: 444 [2019-10-22 08:57:55,726 INFO L226 Difference]: Without dead ends: 227 [2019-10-22 08:57:55,729 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 [2019-10-22 08:57:55,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-10-22 08:57:55,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2019-10-22 08:57:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-10-22 08:57:55,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 524 transitions. [2019-10-22 08:57:55,780 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 524 transitions. Word has length 25 [2019-10-22 08:57:55,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:55,781 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 524 transitions. [2019-10-22 08:57:55,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:55,781 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 524 transitions. [2019-10-22 08:57:55,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:57:55,783 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:55,783 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:55,783 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:55,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:55,783 INFO L82 PathProgramCache]: Analyzing trace with hash -774033433, now seen corresponding path program 1 times [2019-10-22 08:57:55,784 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:55,784 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75351841] [2019-10-22 08:57:55,784 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:55,784 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:55,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:55,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:55,892 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75351841] [2019-10-22 08:57:55,893 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:55,893 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:57:55,893 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400068027] [2019-10-22 08:57:55,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:55,895 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:55,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:55,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:55,895 INFO L87 Difference]: Start difference. First operand 227 states and 524 transitions. Second operand 5 states. [2019-10-22 08:57:56,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:56,013 INFO L93 Difference]: Finished difference Result 195 states and 416 transitions. [2019-10-22 08:57:56,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:56,015 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 08:57:56,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:56,016 INFO L225 Difference]: With dead ends: 195 [2019-10-22 08:57:56,017 INFO L226 Difference]: Without dead ends: 171 [2019-10-22 08:57:56,017 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 [2019-10-22 08:57:56,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-10-22 08:57:56,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2019-10-22 08:57:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-10-22 08:57:56,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 370 transitions. [2019-10-22 08:57:56,045 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 370 transitions. Word has length 26 [2019-10-22 08:57:56,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:56,045 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 370 transitions. [2019-10-22 08:57:56,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 370 transitions. [2019-10-22 08:57:56,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:57:56,047 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:56,047 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:56,047 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:56,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:56,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1876335777, now seen corresponding path program 1 times [2019-10-22 08:57:56,048 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:56,048 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649106148] [2019-10-22 08:57:56,048 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:56,048 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:56,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:56,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:56,219 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649106148] [2019-10-22 08:57:56,219 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:56,220 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:57:56,220 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364057444] [2019-10-22 08:57:56,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:57:56,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:56,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:57:56,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:57:56,221 INFO L87 Difference]: Start difference. First operand 171 states and 370 transitions. Second operand 7 states. [2019-10-22 08:57:56,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:56,315 INFO L93 Difference]: Finished difference Result 267 states and 594 transitions. [2019-10-22 08:57:56,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:57:56,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-10-22 08:57:56,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:56,317 INFO L225 Difference]: With dead ends: 267 [2019-10-22 08:57:56,317 INFO L226 Difference]: Without dead ends: 167 [2019-10-22 08:57:56,317 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:57:56,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-10-22 08:57:56,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-10-22 08:57:56,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-10-22 08:57:56,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 362 transitions. [2019-10-22 08:57:56,329 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 362 transitions. Word has length 27 [2019-10-22 08:57:56,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:56,329 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 362 transitions. [2019-10-22 08:57:56,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:57:56,329 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 362 transitions. [2019-10-22 08:57:56,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:57:56,330 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:56,330 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:56,331 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:56,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:56,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1102474215, now seen corresponding path program 2 times [2019-10-22 08:57:56,331 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:56,331 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958713731] [2019-10-22 08:57:56,331 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:56,332 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:56,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:56,426 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958713731] [2019-10-22 08:57:56,426 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:56,426 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:57:56,426 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859524039] [2019-10-22 08:57:56,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:57:56,427 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:56,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:57:56,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:57:56,427 INFO L87 Difference]: Start difference. First operand 167 states and 362 transitions. Second operand 7 states. [2019-10-22 08:57:56,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:56,519 INFO L93 Difference]: Finished difference Result 135 states and 282 transitions. [2019-10-22 08:57:56,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:57:56,520 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-10-22 08:57:56,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:56,520 INFO L225 Difference]: With dead ends: 135 [2019-10-22 08:57:56,520 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:57:56,521 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:57:56,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:57:56,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:57:56,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:57:56,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:57:56,521 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-10-22 08:57:56,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:56,522 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:56,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:57:56,522 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:57:56,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:57:56,525 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:57:56,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:56 BasicIcfg [2019-10-22 08:57:56,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:56,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:56,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:56,528 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:56,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:55" (3/4) ... [2019-10-22 08:57:56,532 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:57:56,538 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:57:56,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:57:56,542 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 08:57:56,542 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:57:56,578 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0aebb216-f050-4917-b050-351d2384fdb7/bin/uautomizer/witness.graphml [2019-10-22 08:57:56,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:56,580 INFO L168 Benchmark]: Toolchain (without parser) took 2288.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 939.0 MB in the beginning and 975.6 MB in the end (delta: -36.6 MB). Peak memory consumption was 120.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:56,580 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:56,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:56,581 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.65 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. [2019-10-22 08:57:56,582 INFO L168 Benchmark]: Boogie Preprocessor took 20.16 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. [2019-10-22 08:57:56,582 INFO L168 Benchmark]: RCFGBuilder took 336.04 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:56,583 INFO L168 Benchmark]: TraceAbstraction took 1293.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.0 MB in the end (delta: 115.2 MB). Peak memory consumption was 115.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:56,583 INFO L168 Benchmark]: Witness Printer took 50.53 ms. Allocated memory is still 1.2 GB. Free memory was 979.0 MB in the beginning and 975.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:56,585 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 540.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.65 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. * Boogie Preprocessor took 20.16 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 336.04 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1293.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.0 MB in the end (delta: 115.2 MB). Peak memory consumption was 115.2 MB. Max. memory is 11.5 GB. * Witness Printer took 50.53 ms. Allocated memory is still 1.2 GB. Free memory was 979.0 MB in the beginning and 975.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 179 SDslu, 433 SDs, 0 SdLazy, 58 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=434occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 6949 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...