./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/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 97f345e2e2bd021c5d222270dc95c399e3809cd8 ................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:30:01,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:30:01,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:30:01,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:30:01,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:30:01,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:30:01,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:30:01,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:30:01,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:30:01,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:30:01,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:30:01,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:30:01,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:30:01,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:30:01,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:30:01,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:30:01,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:30:01,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:30:01,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:30:01,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:30:01,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:30:01,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:30:01,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:30:01,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:30:01,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:30:01,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:30:01,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:30:01,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:30:01,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:30:01,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:30:01,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:30:01,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:30:01,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:30:01,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:30:01,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:30:01,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:30:01,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:30:01,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:30:01,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:30:01,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:30:01,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:30:01,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 21:30:01,945 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:30:01,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:30:01,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:30:01,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:30:01,947 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:30:01,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:30:01,948 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:30:01,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:30:01,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:30:01,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:30:01,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:30:01,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:30:01,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:30:01,950 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:30:01,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:30:01,950 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:30:01,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:30:01,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:30:01,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:30:01,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:30:01,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:30:01,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:30:01,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:30:01,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:30:01,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:30:01,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:30:01,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:30:01,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:30:01,953 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_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/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 -> 97f345e2e2bd021c5d222270dc95c399e3809cd8 [2019-11-15 21:30:01,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:30:02,010 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:30:02,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:30:02,016 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:30:02,016 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:30:02,017 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe010_tso.opt.i [2019-11-15 21:30:02,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/data/58a37a4e4/8480af2155e347adac5900deea15464c/FLAG6dcf42291 [2019-11-15 21:30:02,566 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:30:02,567 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/sv-benchmarks/c/pthread-wmm/safe010_tso.opt.i [2019-11-15 21:30:02,587 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/data/58a37a4e4/8480af2155e347adac5900deea15464c/FLAG6dcf42291 [2019-11-15 21:30:02,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/data/58a37a4e4/8480af2155e347adac5900deea15464c [2019-11-15 21:30:02,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:30:02,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:30:02,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:30:02,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:30:02,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:30:02,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:30:02" (1/1) ... [2019-11-15 21:30:02,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142f7e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:02, skipping insertion in model container [2019-11-15 21:30:02,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:30:02" (1/1) ... [2019-11-15 21:30:02,827 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:30:02,874 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:30:03,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:30:03,339 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:30:03,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:30:03,485 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:30:03,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03 WrapperNode [2019-11-15 21:30:03,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:30:03,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:30:03,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:30:03,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:30:03,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03" (1/1) ... [2019-11-15 21:30:03,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03" (1/1) ... [2019-11-15 21:30:03,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:30:03,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:30:03,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:30:03,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:30:03,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03" (1/1) ... [2019-11-15 21:30:03,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03" (1/1) ... [2019-11-15 21:30:03,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03" (1/1) ... [2019-11-15 21:30:03,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03" (1/1) ... [2019-11-15 21:30:03,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03" (1/1) ... [2019-11-15 21:30:03,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03" (1/1) ... [2019-11-15 21:30:03,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03" (1/1) ... [2019-11-15 21:30:03,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:30:03,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:30:03,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:30:03,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:30:03,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:30:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:30:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 21:30:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:30:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:30:03,652 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 21:30:03,653 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 21:30:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 21:30:03,654 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 21:30:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 21:30:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:30:03,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:30:03,659 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 21:30:03,986 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:30:03,986 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 21:30:03,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:30:03 BoogieIcfgContainer [2019-11-15 21:30:03,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:30:03,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:30:03,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:30:03,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:30:03,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:30:02" (1/3) ... [2019-11-15 21:30:03,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8816c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:30:03, skipping insertion in model container [2019-11-15 21:30:03,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:03" (2/3) ... [2019-11-15 21:30:03,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8816c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:30:03, skipping insertion in model container [2019-11-15 21:30:03,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:30:03" (3/3) ... [2019-11-15 21:30:03,996 INFO L109 eAbstractionObserver]: Analyzing ICFG safe010_tso.opt.i [2019-11-15 21:30:04,024 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,025 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,025 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,025 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,026 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,026 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,026 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,026 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,027 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,027 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,027 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,027 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:04,036 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 21:30:04,037 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:30:04,044 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:30:04,054 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:30:04,073 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:30:04,073 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:30:04,073 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:30:04,074 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:30:04,074 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:30:04,074 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:30:04,074 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:30:04,074 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:30:04,083 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 39 transitions [2019-11-15 21:30:04,114 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 285 states. [2019-11-15 21:30:04,116 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2019-11-15 21:30:04,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-15 21:30:04,126 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:30:04,127 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] [2019-11-15 21:30:04,128 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:30:04,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:30:04,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1907420059, now seen corresponding path program 1 times [2019-11-15 21:30:04,142 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:30:04,142 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39166] [2019-11-15 21:30:04,143 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:04,143 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:04,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:30:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:30:04,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:30:04,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39166] [2019-11-15 21:30:04,469 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:30:04,469 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:30:04,469 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425104193] [2019-11-15 21:30:04,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:30:04,476 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:30:04,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:30:04,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:30:04,493 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 5 states. [2019-11-15 21:30:04,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:30:04,608 INFO L93 Difference]: Finished difference Result 286 states and 645 transitions. [2019-11-15 21:30:04,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:30:04,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-15 21:30:04,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:30:04,638 INFO L225 Difference]: With dead ends: 286 [2019-11-15 21:30:04,638 INFO L226 Difference]: Without dead ends: 150 [2019-11-15 21:30:04,644 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:30:04,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-15 21:30:04,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-11-15 21:30:04,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-15 21:30:04,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 324 transitions. [2019-11-15 21:30:04,693 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 324 transitions. Word has length 24 [2019-11-15 21:30:04,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:30:04,694 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 324 transitions. [2019-11-15 21:30:04,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:30:04,694 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 324 transitions. [2019-11-15 21:30:04,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 21:30:04,696 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:30:04,696 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:30:04,696 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:30:04,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:30:04,697 INFO L82 PathProgramCache]: Analyzing trace with hash 199260469, now seen corresponding path program 1 times [2019-11-15 21:30:04,697 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:30:04,697 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106039299] [2019-11-15 21:30:04,697 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:04,698 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:04,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:30:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:30:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:30:04,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106039299] [2019-11-15 21:30:04,826 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:30:04,826 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:30:04,827 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476938060] [2019-11-15 21:30:04,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:30:04,828 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:30:04,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:30:04,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:30:04,829 INFO L87 Difference]: Start difference. First operand 150 states and 324 transitions. Second operand 5 states. [2019-11-15 21:30:04,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:30:04,891 INFO L93 Difference]: Finished difference Result 123 states and 240 transitions. [2019-11-15 21:30:04,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:30:04,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-15 21:30:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:30:04,898 INFO L225 Difference]: With dead ends: 123 [2019-11-15 21:30:04,898 INFO L226 Difference]: Without dead ends: 108 [2019-11-15 21:30:04,899 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 21:30:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-11-15 21:30:04,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-11-15 21:30:04,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-15 21:30:04,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 212 transitions. [2019-11-15 21:30:04,922 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 212 transitions. Word has length 25 [2019-11-15 21:30:04,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:30:04,923 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 212 transitions. [2019-11-15 21:30:04,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:30:04,923 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 212 transitions. [2019-11-15 21:30:04,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 21:30:04,924 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:30:04,925 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:30:04,925 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:30:04,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:30:04,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1414190588, now seen corresponding path program 1 times [2019-11-15 21:30:04,926 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:30:04,926 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523042106] [2019-11-15 21:30:04,926 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:04,926 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:04,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:30:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:30:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:30:05,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523042106] [2019-11-15 21:30:05,069 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:30:05,069 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 21:30:05,069 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398801002] [2019-11-15 21:30:05,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:30:05,070 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:30:05,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:30:05,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:30:05,070 INFO L87 Difference]: Start difference. First operand 108 states and 212 transitions. Second operand 6 states. [2019-11-15 21:30:05,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:30:05,191 INFO L93 Difference]: Finished difference Result 162 states and 329 transitions. [2019-11-15 21:30:05,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:30:05,192 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-11-15 21:30:05,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:30:05,192 INFO L225 Difference]: With dead ends: 162 [2019-11-15 21:30:05,193 INFO L226 Difference]: Without dead ends: 93 [2019-11-15 21:30:05,193 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:30:05,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-15 21:30:05,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2019-11-15 21:30:05,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-15 21:30:05,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 182 transitions. [2019-11-15 21:30:05,203 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 182 transitions. Word has length 26 [2019-11-15 21:30:05,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:30:05,203 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 182 transitions. [2019-11-15 21:30:05,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:30:05,203 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 182 transitions. [2019-11-15 21:30:05,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 21:30:05,204 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:30:05,204 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:30:05,205 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:30:05,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:30:05,205 INFO L82 PathProgramCache]: Analyzing trace with hash 352713822, now seen corresponding path program 2 times [2019-11-15 21:30:05,205 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:30:05,205 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238345915] [2019-11-15 21:30:05,206 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:05,206 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:05,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:30:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:30:05,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:30:05,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238345915] [2019-11-15 21:30:05,346 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:30:05,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 21:30:05,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840431738] [2019-11-15 21:30:05,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:30:05,347 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:30:05,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:30:05,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:30:05,348 INFO L87 Difference]: Start difference. First operand 93 states and 182 transitions. Second operand 7 states. [2019-11-15 21:30:05,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:30:05,432 INFO L93 Difference]: Finished difference Result 75 states and 140 transitions. [2019-11-15 21:30:05,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:30:05,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2019-11-15 21:30:05,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:30:05,433 INFO L225 Difference]: With dead ends: 75 [2019-11-15 21:30:05,433 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:30:05,433 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-15 21:30:05,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:30:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:30:05,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:30:05,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:30:05,434 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-11-15 21:30:05,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:30:05,434 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:30:05,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:30:05,435 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:30:05,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:30:05,437 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 21:30:05,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:30:05 BasicIcfg [2019-11-15 21:30:05,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:30:05,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:30:05,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:30:05,440 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:30:05,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:30:03" (3/4) ... [2019-11-15 21:30:05,444 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:30:05,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 21:30:05,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 21:30:05,455 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-15 21:30:05,456 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 21:30:05,500 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1d5f356e-bfb9-4b8b-a066-38ea61b9b4b4/bin/uautomizer/witness.graphml [2019-11-15 21:30:05,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:30:05,502 INFO L168 Benchmark]: Toolchain (without parser) took 2693.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 940.7 MB in the beginning and 949.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 120.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:30:05,503 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:30:05,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:30:05,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:30:05,504 INFO L168 Benchmark]: Boogie Preprocessor took 26.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:30:05,505 INFO L168 Benchmark]: RCFGBuilder took 420.66 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:30:05,508 INFO L168 Benchmark]: TraceAbstraction took 1451.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.5 MB in the end (delta: 104.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:30:05,509 INFO L168 Benchmark]: Witness Printer took 60.45 ms. Allocated memory is still 1.2 GB. Free memory was 956.5 MB in the beginning and 949.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:30:05,517 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 674.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 420.66 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1451.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.5 MB in the end (delta: 104.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 11.5 GB. * Witness Printer took 60.45 ms. Allocated memory is still 1.2 GB. Free memory was 956.5 MB in the beginning and 949.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 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, 49 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 139 SDtfs, 151 SDslu, 313 SDs, 0 SdLazy, 52 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285occurred 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, 0.5s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 7903 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...