./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/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 8c30e8c5afc00fd444965b78aea48444bcdbf6e8 ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:46:43,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:46:43,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:46:43,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:46:43,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:46:43,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:46:43,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:46:43,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:46:43,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:46:43,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:46:43,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:46:43,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:46:43,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:46:43,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:46:43,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:46:43,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:46:43,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:46:43,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:46:43,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:46:43,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:46:43,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:46:43,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:46:43,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:46:43,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:46:43,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:46:43,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:46:43,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:46:43,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:46:43,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:46:43,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:46:43,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:46:43,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:46:43,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:46:43,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:46:43,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:46:43,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:46:43,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:46:43,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:46:43,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:46:43,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:46:43,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:46:43,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:46:43,978 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:46:43,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:46:43,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:46:43,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:46:43,980 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:46:43,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:46:43,980 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:46:43,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:46:43,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:46:43,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:46:43,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:46:43,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:46:43,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:46:43,982 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:46:43,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:46:43,982 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:46:43,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:46:43,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:46:43,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:46:43,983 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:46:43,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:46:43,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:46:43,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:46:43,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:46:43,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:46:43,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:46:43,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:46:43,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:46:43,986 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_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/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 -> 8c30e8c5afc00fd444965b78aea48444bcdbf6e8 [2019-11-20 10:46:44,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:46:44,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:46:44,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:46:44,147 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:46:44,147 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:46:44,148 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i [2019-11-20 10:46:44,201 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/bin/uautomizer/data/2c77d9e63/f625ac5ec450414c9a5860678ce27bfe/FLAG1cbf41662 [2019-11-20 10:46:44,736 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:46:44,737 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i [2019-11-20 10:46:44,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/bin/uautomizer/data/2c77d9e63/f625ac5ec450414c9a5860678ce27bfe/FLAG1cbf41662 [2019-11-20 10:46:45,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/bin/uautomizer/data/2c77d9e63/f625ac5ec450414c9a5860678ce27bfe [2019-11-20 10:46:45,221 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:46:45,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:46:45,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:46:45,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:46:45,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:46:45,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:45" (1/1) ... [2019-11-20 10:46:45,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@591cea7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45, skipping insertion in model container [2019-11-20 10:46:45,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:45" (1/1) ... [2019-11-20 10:46:45,237 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:46:45,280 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:46:45,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:46:45,681 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:46:45,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:46:45,833 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:46:45,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45 WrapperNode [2019-11-20 10:46:45,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:46:45,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:46:45,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:46:45,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:46:45,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45" (1/1) ... [2019-11-20 10:46:45,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45" (1/1) ... [2019-11-20 10:46:45,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:46:45,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:46:45,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:46:45,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:46:45,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45" (1/1) ... [2019-11-20 10:46:45,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45" (1/1) ... [2019-11-20 10:46:45,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45" (1/1) ... [2019-11-20 10:46:45,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45" (1/1) ... [2019-11-20 10:46:45,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45" (1/1) ... [2019-11-20 10:46:45,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45" (1/1) ... [2019-11-20 10:46:45,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45" (1/1) ... [2019-11-20 10:46:45,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:46:45,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:46:45,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:46:45,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:46:45,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/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 [2019-11-20 10:46:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:46:45,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 10:46:45,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:46:45,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:46:45,988 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 10:46:45,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 10:46:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 10:46:45,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 10:46:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 10:46:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:46:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:46:45,995 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 10:46:46,377 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:46:46,377 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 10:46:46,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:46 BoogieIcfgContainer [2019-11-20 10:46:46,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:46:46,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:46:46,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:46:46,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:46:46,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:46:45" (1/3) ... [2019-11-20 10:46:46,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebdb69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:46, skipping insertion in model container [2019-11-20 10:46:46,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:45" (2/3) ... [2019-11-20 10:46:46,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebdb69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:46, skipping insertion in model container [2019-11-20 10:46:46,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:46" (3/3) ... [2019-11-20 10:46:46,386 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_tso.oepc.i [2019-11-20 10:46:46,422 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,423 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,423 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,423 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,424 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,424 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,424 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,424 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,425 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,425 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,425 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,425 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,426 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,426 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,426 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,427 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,427 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,427 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,428 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,428 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,428 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,428 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,429 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,429 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,429 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,429 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,430 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,430 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,430 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,430 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,431 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,431 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,431 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,431 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,432 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,432 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:46:46,464 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 10:46:46,464 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:46:46,471 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:46:46,481 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:46:46,499 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:46:46,499 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:46:46,500 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:46:46,500 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:46:46,500 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:46:46,500 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:46:46,500 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:46:46,500 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:46:46,511 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 57 transitions [2019-11-20 10:46:46,702 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2367 states. [2019-11-20 10:46:46,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states. [2019-11-20 10:46:46,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 10:46:46,724 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:46:46,724 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:46:46,725 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:46:46,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:46:46,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1332459086, now seen corresponding path program 1 times [2019-11-20 10:46:46,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:46:46,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937585703] [2019-11-20 10:46:46,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:46:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:46:47,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:46:47,057 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937585703] [2019-11-20 10:46:47,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:46:47,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 10:46:47,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022915021] [2019-11-20 10:46:47,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:46:47,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:46:47,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:46:47,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:46:47,081 INFO L87 Difference]: Start difference. First operand 2367 states. Second operand 4 states. [2019-11-20 10:46:47,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:46:47,204 INFO L93 Difference]: Finished difference Result 2376 states and 5561 transitions. [2019-11-20 10:46:47,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 10:46:47,206 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-11-20 10:46:47,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:46:47,236 INFO L225 Difference]: With dead ends: 2376 [2019-11-20 10:46:47,236 INFO L226 Difference]: Without dead ends: 1152 [2019-11-20 10:46:47,238 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:46:47,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2019-11-20 10:46:47,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2019-11-20 10:46:47,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2019-11-20 10:46:47,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 2672 transitions. [2019-11-20 10:46:47,382 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 2672 transitions. Word has length 26 [2019-11-20 10:46:47,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:46:47,384 INFO L462 AbstractCegarLoop]: Abstraction has 1152 states and 2672 transitions. [2019-11-20 10:46:47,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:46:47,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 2672 transitions. [2019-11-20 10:46:47,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 10:46:47,387 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:46:47,387 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:46:47,388 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:46:47,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:46:47,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1675336041, now seen corresponding path program 1 times [2019-11-20 10:46:47,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:46:47,389 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020118948] [2019-11-20 10:46:47,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:46:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:46:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:46:47,530 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020118948] [2019-11-20 10:46:47,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:46:47,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 10:46:47,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308386405] [2019-11-20 10:46:47,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 10:46:47,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:46:47,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 10:46:47,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:46:47,533 INFO L87 Difference]: Start difference. First operand 1152 states and 2672 transitions. Second operand 5 states. [2019-11-20 10:46:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:46:47,634 INFO L93 Difference]: Finished difference Result 909 states and 1916 transitions. [2019-11-20 10:46:47,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 10:46:47,635 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-20 10:46:47,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:46:47,641 INFO L225 Difference]: With dead ends: 909 [2019-11-20 10:46:47,641 INFO L226 Difference]: Without dead ends: 774 [2019-11-20 10:46:47,642 INFO L630 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 [2019-11-20 10:46:47,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2019-11-20 10:46:47,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 774. [2019-11-20 10:46:47,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2019-11-20 10:46:47,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1664 transitions. [2019-11-20 10:46:47,672 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1664 transitions. Word has length 27 [2019-11-20 10:46:47,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:46:47,673 INFO L462 AbstractCegarLoop]: Abstraction has 774 states and 1664 transitions. [2019-11-20 10:46:47,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 10:46:47,673 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1664 transitions. [2019-11-20 10:46:47,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 10:46:47,676 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:46:47,676 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:46:47,676 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:46:47,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:46:47,677 INFO L82 PathProgramCache]: Analyzing trace with hash -800055715, now seen corresponding path program 1 times [2019-11-20 10:46:47,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:46:47,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098019079] [2019-11-20 10:46:47,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:46:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:46:47,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:46:47,846 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098019079] [2019-11-20 10:46:47,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:46:47,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 10:46:47,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155020207] [2019-11-20 10:46:47,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 10:46:47,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:46:47,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 10:46:47,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 10:46:47,848 INFO L87 Difference]: Start difference. First operand 774 states and 1664 transitions. Second operand 8 states. [2019-11-20 10:46:48,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:46:48,021 INFO L93 Difference]: Finished difference Result 1260 states and 2717 transitions. [2019-11-20 10:46:48,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 10:46:48,022 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2019-11-20 10:46:48,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:46:48,027 INFO L225 Difference]: With dead ends: 1260 [2019-11-20 10:46:48,027 INFO L226 Difference]: Without dead ends: 747 [2019-11-20 10:46:48,028 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-20 10:46:48,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2019-11-20 10:46:48,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 747. [2019-11-20 10:46:48,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2019-11-20 10:46:48,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1610 transitions. [2019-11-20 10:46:48,054 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1610 transitions. Word has length 28 [2019-11-20 10:46:48,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:46:48,054 INFO L462 AbstractCegarLoop]: Abstraction has 747 states and 1610 transitions. [2019-11-20 10:46:48,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 10:46:48,055 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1610 transitions. [2019-11-20 10:46:48,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 10:46:48,057 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:46:48,057 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:46:48,057 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:46:48,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:46:48,057 INFO L82 PathProgramCache]: Analyzing trace with hash 914308703, now seen corresponding path program 2 times [2019-11-20 10:46:48,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:46:48,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964013028] [2019-11-20 10:46:48,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:46:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:46:48,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:46:48,237 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964013028] [2019-11-20 10:46:48,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:46:48,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 10:46:48,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649670718] [2019-11-20 10:46:48,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 10:46:48,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:46:48,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 10:46:48,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 10:46:48,239 INFO L87 Difference]: Start difference. First operand 747 states and 1610 transitions. Second operand 7 states. [2019-11-20 10:46:48,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:46:48,360 INFO L93 Difference]: Finished difference Result 585 states and 1232 transitions. [2019-11-20 10:46:48,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 10:46:48,361 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-20 10:46:48,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:46:48,362 INFO L225 Difference]: With dead ends: 585 [2019-11-20 10:46:48,362 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 10:46:48,363 INFO L630 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 [2019-11-20 10:46:48,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 10:46:48,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 10:46:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 10:46:48,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 10:46:48,364 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-11-20 10:46:48,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:46:48,365 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:46:48,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 10:46:48,365 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:46:48,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 10:46:48,368 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 10:46:48,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:46:48 BasicIcfg [2019-11-20 10:46:48,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:46:48,373 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:46:48,373 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:46:48,374 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:46:48,374 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:46" (3/4) ... [2019-11-20 10:46:48,378 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 10:46:48,386 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 10:46:48,386 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 10:46:48,401 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-20 10:46:48,412 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 10:46:48,413 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 10:46:48,469 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cb5a08fb-7450-46b6-beaf-f54d7ed33fdd/bin/uautomizer/witness.graphml [2019-11-20 10:46:48,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:46:48,471 INFO L168 Benchmark]: Toolchain (without parser) took 3248.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 944.7 MB in the beginning and 874.9 MB in the end (delta: 69.8 MB). Peak memory consumption was 200.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:46:48,472 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:46:48,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -152.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:46:48,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.29 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. [2019-11-20 10:46:48,474 INFO L168 Benchmark]: Boogie Preprocessor took 24.90 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. [2019-11-20 10:46:48,474 INFO L168 Benchmark]: RCFGBuilder took 458.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:46:48,475 INFO L168 Benchmark]: TraceAbstraction took 1993.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 880.3 MB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:46:48,475 INFO L168 Benchmark]: Witness Printer took 95.95 ms. Allocated memory is still 1.2 GB. Free memory was 880.3 MB in the beginning and 874.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:46:48,482 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 611.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -152.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.29 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 24.90 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 458.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1993.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 880.3 MB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 11.5 GB. * Witness Printer took 95.95 ms. Allocated memory is still 1.2 GB. Free memory was 880.3 MB in the beginning and 874.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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 9 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 244 SDtfs, 318 SDslu, 631 SDs, 0 SdLazy, 108 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2367occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 8463 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...