./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 96f16385 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32935a3786295b4ca9a51ffc083c82e75ec24a5d ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-96f1638 [2020-12-02 12:13:30,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 12:13:30,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 12:13:30,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 12:13:30,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 12:13:30,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 12:13:30,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 12:13:30,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 12:13:30,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 12:13:30,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 12:13:30,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 12:13:30,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 12:13:30,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 12:13:30,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 12:13:30,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 12:13:30,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 12:13:30,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 12:13:30,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 12:13:30,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 12:13:31,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 12:13:31,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 12:13:31,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 12:13:31,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 12:13:31,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 12:13:31,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 12:13:31,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 12:13:31,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 12:13:31,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 12:13:31,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 12:13:31,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 12:13:31,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 12:13:31,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 12:13:31,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 12:13:31,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 12:13:31,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 12:13:31,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 12:13:31,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 12:13:31,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 12:13:31,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 12:13:31,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 12:13:31,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 12:13:31,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 12:13:31,061 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 12:13:31,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 12:13:31,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 12:13:31,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 12:13:31,063 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 12:13:31,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 12:13:31,064 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 12:13:31,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 12:13:31,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 12:13:31,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 12:13:31,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 12:13:31,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 12:13:31,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 12:13:31,065 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 12:13:31,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 12:13:31,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 12:13:31,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 12:13:31,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 12:13:31,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 12:13:31,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 12:13:31,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 12:13:31,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 12:13:31,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 12:13:31,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 12:13:31,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 12:13:31,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 12:13:31,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 12:13:31,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 12:13:31,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 12:13:31,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32935a3786295b4ca9a51ffc083c82e75ec24a5d [2020-12-02 12:13:31,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 12:13:31,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 12:13:31,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 12:13:31,515 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 12:13:31,516 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 12:13:31,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i [2020-12-02 12:13:31,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b77bb8063/253e8ce21c4d430dbbd81b27c06fa10d/FLAGe77f4ef30 [2020-12-02 12:13:32,401 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 12:13:32,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i [2020-12-02 12:13:32,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b77bb8063/253e8ce21c4d430dbbd81b27c06fa10d/FLAGe77f4ef30 [2020-12-02 12:13:32,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b77bb8063/253e8ce21c4d430dbbd81b27c06fa10d [2020-12-02 12:13:32,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 12:13:32,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 12:13:32,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 12:13:32,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 12:13:32,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 12:13:32,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:13:32" (1/1) ... [2020-12-02 12:13:32,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c057c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:32, skipping insertion in model container [2020-12-02 12:13:32,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:13:32" (1/1) ... [2020-12-02 12:13:32,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 12:13:32,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 12:13:32,932 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i[949,962] [2020-12-02 12:13:33,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:13:33,195 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 12:13:33,209 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i[949,962] [2020-12-02 12:13:33,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:13:33,373 INFO L208 MainTranslator]: Completed translation [2020-12-02 12:13:33,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33 WrapperNode [2020-12-02 12:13:33,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 12:13:33,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 12:13:33,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 12:13:33,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 12:13:33,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33" (1/1) ... [2020-12-02 12:13:33,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33" (1/1) ... [2020-12-02 12:13:33,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 12:13:33,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 12:13:33,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 12:13:33,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 12:13:33,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33" (1/1) ... [2020-12-02 12:13:33,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33" (1/1) ... [2020-12-02 12:13:33,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33" (1/1) ... [2020-12-02 12:13:33,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33" (1/1) ... [2020-12-02 12:13:33,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33" (1/1) ... [2020-12-02 12:13:33,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33" (1/1) ... [2020-12-02 12:13:33,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33" (1/1) ... [2020-12-02 12:13:33,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 12:13:33,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 12:13:33,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 12:13:33,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 12:13:33,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-12-02 12:13:33,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 12:13:33,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-02 12:13:33,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 12:13:33,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 12:13:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-02 12:13:33,553 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-02 12:13:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-02 12:13:33,553 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-02 12:13:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-02 12:13:33,554 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-02 12:13:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 12:13:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-02 12:13:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 12:13:33,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 12:13:33,556 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-02 12:13:33,978 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 12:13:33,978 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-02 12:13:33,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:13:33 BoogieIcfgContainer [2020-12-02 12:13:33,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 12:13:33,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 12:13:33,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 12:13:33,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 12:13:33,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:13:32" (1/3) ... [2020-12-02 12:13:33,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a75834d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:13:33, skipping insertion in model container [2020-12-02 12:13:33,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:33" (2/3) ... [2020-12-02 12:13:33,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a75834d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:13:33, skipping insertion in model container [2020-12-02 12:13:33,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:13:33" (3/3) ... [2020-12-02 12:13:33,988 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2020-12-02 12:13:34,002 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-02 12:13:34,003 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 12:13:34,006 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 12:13:34,007 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-02 12:13:34,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,034 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,034 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,035 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,035 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,035 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,035 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,035 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,036 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,036 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,036 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,036 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,039 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,039 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,039 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,039 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,040 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,040 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,040 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,040 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,044 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,044 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,044 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,050 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,050 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,052 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,053 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:34,056 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-02 12:13:34,069 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-02 12:13:34,092 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 12:13:34,092 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 12:13:34,092 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 12:13:34,092 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 12:13:34,092 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 12:13:34,093 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 12:13:34,093 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 12:13:34,093 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 12:13:34,106 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-02 12:13:34,108 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-02 12:13:34,111 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-02 12:13:34,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-02 12:13:34,162 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-02 12:13:34,162 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-02 12:13:34,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-02 12:13:34,170 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-02 12:13:36,051 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-02 12:13:36,765 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-02 12:13:36,874 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-02 12:13:37,096 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-02 12:13:37,203 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-02 12:13:37,220 INFO L131 LiptonReduction]: Checked pairs total: 2511 [2020-12-02 12:13:37,220 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-12-02 12:13:37,227 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-02 12:13:37,255 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-02 12:13:37,258 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-02 12:13:37,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-02 12:13:37,266 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:37,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:37,267 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:37,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:37,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1857977145, now seen corresponding path program 1 times [2020-12-02 12:13:37,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:37,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168309142] [2020-12-02 12:13:37,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:37,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:37,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168309142] [2020-12-02 12:13:37,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:37,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:13:37,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022273233] [2020-12-02 12:13:37,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 12:13:37,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:37,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 12:13:37,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 12:13:37,495 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-02 12:13:37,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:37,546 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-02 12:13:37,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 12:13:37,550 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-02 12:13:37,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:37,578 INFO L225 Difference]: With dead ends: 362 [2020-12-02 12:13:37,578 INFO L226 Difference]: Without dead ends: 298 [2020-12-02 12:13:37,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 12:13:37,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-02 12:13:37,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-02 12:13:37,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-02 12:13:37,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-02 12:13:37,684 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-02 12:13:37,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:37,685 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-02 12:13:37,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 12:13:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-02 12:13:37,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 12:13:37,687 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:37,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:37,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 12:13:37,688 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:37,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:37,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1762722497, now seen corresponding path program 1 times [2020-12-02 12:13:37,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:37,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527458144] [2020-12-02 12:13:37,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:37,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527458144] [2020-12-02 12:13:37,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:37,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:13:37,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35465022] [2020-12-02 12:13:37,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:13:37,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:37,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:13:37,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:13:37,854 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-02 12:13:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:37,918 INFO L93 Difference]: Finished difference Result 552 states and 1504 transitions. [2020-12-02 12:13:37,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:13:37,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-02 12:13:37,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:37,922 INFO L225 Difference]: With dead ends: 552 [2020-12-02 12:13:37,922 INFO L226 Difference]: Without dead ends: 382 [2020-12-02 12:13:37,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:37,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-12-02 12:13:37,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 298. [2020-12-02 12:13:37,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-02 12:13:37,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 792 transitions. [2020-12-02 12:13:37,946 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 792 transitions. Word has length 9 [2020-12-02 12:13:37,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:37,947 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 792 transitions. [2020-12-02 12:13:37,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:13:37,947 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 792 transitions. [2020-12-02 12:13:37,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 12:13:37,949 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:37,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:37,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 12:13:37,950 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:37,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:37,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1189149087, now seen corresponding path program 1 times [2020-12-02 12:13:37,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:37,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487213661] [2020-12-02 12:13:37,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:38,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:38,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487213661] [2020-12-02 12:13:38,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:38,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:13:38,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358237237] [2020-12-02 12:13:38,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:38,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:38,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:38,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:38,099 INFO L87 Difference]: Start difference. First operand 298 states and 792 transitions. Second operand 5 states. [2020-12-02 12:13:38,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:38,166 INFO L93 Difference]: Finished difference Result 338 states and 836 transitions. [2020-12-02 12:13:38,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:13:38,167 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-02 12:13:38,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:38,169 INFO L225 Difference]: With dead ends: 338 [2020-12-02 12:13:38,169 INFO L226 Difference]: Without dead ends: 222 [2020-12-02 12:13:38,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-02 12:13:38,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-12-02 12:13:38,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 182. [2020-12-02 12:13:38,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-12-02 12:13:38,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 468 transitions. [2020-12-02 12:13:38,185 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 468 transitions. Word has length 10 [2020-12-02 12:13:38,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:38,185 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 468 transitions. [2020-12-02 12:13:38,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:38,185 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 468 transitions. [2020-12-02 12:13:38,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 12:13:38,188 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:38,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:38,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 12:13:38,189 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:38,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:38,189 INFO L82 PathProgramCache]: Analyzing trace with hash 681758540, now seen corresponding path program 1 times [2020-12-02 12:13:38,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:38,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834407775] [2020-12-02 12:13:38,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:38,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:38,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834407775] [2020-12-02 12:13:38,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:38,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:13:38,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614421037] [2020-12-02 12:13:38,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 12:13:38,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:38,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 12:13:38,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 12:13:38,279 INFO L87 Difference]: Start difference. First operand 182 states and 468 transitions. Second operand 3 states. [2020-12-02 12:13:38,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:38,288 INFO L93 Difference]: Finished difference Result 146 states and 331 transitions. [2020-12-02 12:13:38,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 12:13:38,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-02 12:13:38,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:38,289 INFO L225 Difference]: With dead ends: 146 [2020-12-02 12:13:38,290 INFO L226 Difference]: Without dead ends: 146 [2020-12-02 12:13:38,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 12:13:38,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-12-02 12:13:38,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-12-02 12:13:38,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-12-02 12:13:38,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 331 transitions. [2020-12-02 12:13:38,296 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 331 transitions. Word has length 12 [2020-12-02 12:13:38,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:38,296 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 331 transitions. [2020-12-02 12:13:38,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 12:13:38,297 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 331 transitions. [2020-12-02 12:13:38,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 12:13:38,298 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:38,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:38,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-02 12:13:38,299 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:38,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:38,299 INFO L82 PathProgramCache]: Analyzing trace with hash -2034044923, now seen corresponding path program 1 times [2020-12-02 12:13:38,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:38,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658930877] [2020-12-02 12:13:38,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:38,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658930877] [2020-12-02 12:13:38,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:38,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:13:38,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398465993] [2020-12-02 12:13:38,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:13:38,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:38,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:13:38,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:13:38,352 INFO L87 Difference]: Start difference. First operand 146 states and 331 transitions. Second operand 4 states. [2020-12-02 12:13:38,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:38,368 INFO L93 Difference]: Finished difference Result 101 states and 200 transitions. [2020-12-02 12:13:38,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 12:13:38,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-02 12:13:38,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:38,370 INFO L225 Difference]: With dead ends: 101 [2020-12-02 12:13:38,370 INFO L226 Difference]: Without dead ends: 101 [2020-12-02 12:13:38,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:13:38,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-02 12:13:38,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2020-12-02 12:13:38,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-02 12:13:38,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 190 transitions. [2020-12-02 12:13:38,374 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 190 transitions. Word has length 13 [2020-12-02 12:13:38,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:38,375 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 190 transitions. [2020-12-02 12:13:38,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:13:38,375 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 190 transitions. [2020-12-02 12:13:38,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-02 12:13:38,376 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:38,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:38,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-02 12:13:38,377 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:38,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:38,377 INFO L82 PathProgramCache]: Analyzing trace with hash -666358640, now seen corresponding path program 1 times [2020-12-02 12:13:38,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:38,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690189916] [2020-12-02 12:13:38,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:38,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690189916] [2020-12-02 12:13:38,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:38,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:13:38,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439183655] [2020-12-02 12:13:38,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:38,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:38,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:38,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:38,433 INFO L87 Difference]: Start difference. First operand 97 states and 190 transitions. Second operand 5 states. [2020-12-02 12:13:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:38,472 INFO L93 Difference]: Finished difference Result 181 states and 338 transitions. [2020-12-02 12:13:38,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:13:38,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-02 12:13:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:38,474 INFO L225 Difference]: With dead ends: 181 [2020-12-02 12:13:38,475 INFO L226 Difference]: Without dead ends: 140 [2020-12-02 12:13:38,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-02 12:13:38,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-02 12:13:38,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 97. [2020-12-02 12:13:38,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-02 12:13:38,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 186 transitions. [2020-12-02 12:13:38,479 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 186 transitions. Word has length 15 [2020-12-02 12:13:38,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:38,480 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 186 transitions. [2020-12-02 12:13:38,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:38,480 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 186 transitions. [2020-12-02 12:13:38,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-02 12:13:38,481 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:38,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:38,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-02 12:13:38,482 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:38,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:38,482 INFO L82 PathProgramCache]: Analyzing trace with hash -574188510, now seen corresponding path program 2 times [2020-12-02 12:13:38,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:38,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763965882] [2020-12-02 12:13:38,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:38,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763965882] [2020-12-02 12:13:38,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:38,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:13:38,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678758675] [2020-12-02 12:13:38,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:38,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:38,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:38,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:38,538 INFO L87 Difference]: Start difference. First operand 97 states and 186 transitions. Second operand 5 states. [2020-12-02 12:13:38,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:38,564 INFO L93 Difference]: Finished difference Result 77 states and 147 transitions. [2020-12-02 12:13:38,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:13:38,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-02 12:13:38,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:38,565 INFO L225 Difference]: With dead ends: 77 [2020-12-02 12:13:38,565 INFO L226 Difference]: Without dead ends: 69 [2020-12-02 12:13:38,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-02 12:13:38,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2020-12-02 12:13:38,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-12-02 12:13:38,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 123 transitions. [2020-12-02 12:13:38,569 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 123 transitions. Word has length 15 [2020-12-02 12:13:38,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:38,569 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 123 transitions. [2020-12-02 12:13:38,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:38,570 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 123 transitions. [2020-12-02 12:13:38,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 12:13:38,570 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:38,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:38,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-02 12:13:38,571 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:38,572 INFO L82 PathProgramCache]: Analyzing trace with hash -681441042, now seen corresponding path program 1 times [2020-12-02 12:13:38,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:38,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165196840] [2020-12-02 12:13:38,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:38,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165196840] [2020-12-02 12:13:38,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:38,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-02 12:13:38,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754209475] [2020-12-02 12:13:38,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 12:13:38,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:38,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 12:13:38,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:13:38,669 INFO L87 Difference]: Start difference. First operand 65 states and 123 transitions. Second operand 6 states. [2020-12-02 12:13:38,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:38,735 INFO L93 Difference]: Finished difference Result 129 states and 226 transitions. [2020-12-02 12:13:38,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-02 12:13:38,736 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-02 12:13:38,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:38,736 INFO L225 Difference]: With dead ends: 129 [2020-12-02 12:13:38,737 INFO L226 Difference]: Without dead ends: 51 [2020-12-02 12:13:38,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-12-02 12:13:38,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-02 12:13:38,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2020-12-02 12:13:38,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-02 12:13:38,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2020-12-02 12:13:38,739 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 76 transitions. Word has length 18 [2020-12-02 12:13:38,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:38,739 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 76 transitions. [2020-12-02 12:13:38,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 12:13:38,740 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 76 transitions. [2020-12-02 12:13:38,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 12:13:38,740 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:38,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:38,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-02 12:13:38,741 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:38,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:38,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1665896384, now seen corresponding path program 2 times [2020-12-02 12:13:38,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:38,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038031168] [2020-12-02 12:13:38,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:38,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:38,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038031168] [2020-12-02 12:13:38,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:38,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-02 12:13:38,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249097509] [2020-12-02 12:13:38,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 12:13:38,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:38,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 12:13:38,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:13:38,821 INFO L87 Difference]: Start difference. First operand 47 states and 76 transitions. Second operand 6 states. [2020-12-02 12:13:38,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:38,858 INFO L93 Difference]: Finished difference Result 61 states and 98 transitions. [2020-12-02 12:13:38,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:13:38,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-02 12:13:38,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:38,859 INFO L225 Difference]: With dead ends: 61 [2020-12-02 12:13:38,859 INFO L226 Difference]: Without dead ends: 37 [2020-12-02 12:13:38,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-02 12:13:38,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-02 12:13:38,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-02 12:13:38,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-02 12:13:38,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-12-02 12:13:38,862 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-12-02 12:13:38,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:38,862 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-12-02 12:13:38,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 12:13:38,862 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-12-02 12:13:38,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 12:13:38,863 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:38,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:38,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-02 12:13:38,863 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:38,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:38,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1696595058, now seen corresponding path program 3 times [2020-12-02 12:13:38,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:38,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803768656] [2020-12-02 12:13:38,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 12:13:38,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803768656] [2020-12-02 12:13:38,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:38,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:13:38,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856708916] [2020-12-02 12:13:38,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:38,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:38,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:38,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:38,963 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-12-02 12:13:38,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:38,999 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-12-02 12:13:38,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:13:39,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-02 12:13:39,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:39,000 INFO L225 Difference]: With dead ends: 36 [2020-12-02 12:13:39,000 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 12:13:39,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-02 12:13:39,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 12:13:39,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 12:13:39,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 12:13:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 12:13:39,002 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-02 12:13:39,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:39,003 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 12:13:39,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:39,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 12:13:39,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 12:13:39,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-02 12:13:39,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:13:39 BasicIcfg [2020-12-02 12:13:39,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 12:13:39,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 12:13:39,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 12:13:39,008 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 12:13:39,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:13:33" (3/4) ... [2020-12-02 12:13:39,013 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 12:13:39,020 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-02 12:13:39,020 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-02 12:13:39,020 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-02 12:13:39,027 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-02 12:13:39,027 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 12:13:39,027 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:13:39,027 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:13:39,084 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 12:13:39,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 12:13:39,086 INFO L168 Benchmark]: Toolchain (without parser) took 6432.18 ms. Allocated memory was 50.3 MB in the beginning and 111.1 MB in the end (delta: 60.8 MB). Free memory was 25.4 MB in the beginning and 30.7 MB in the end (delta: -5.3 MB). Peak memory consumption was 57.6 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:39,087 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 50.3 MB. Free memory is still 33.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:13:39,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.45 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 25.2 MB in the beginning and 32.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:39,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 62.9 MB. Free memory was 32.0 MB in the beginning and 30.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:39,089 INFO L168 Benchmark]: Boogie Preprocessor took 26.37 ms. Allocated memory is still 62.9 MB. Free memory was 30.0 MB in the beginning and 28.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:13:39,090 INFO L168 Benchmark]: RCFGBuilder took 530.59 ms. Allocated memory is still 62.9 MB. Free memory was 28.7 MB in the beginning and 41.5 MB in the end (delta: -12.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:39,091 INFO L168 Benchmark]: TraceAbstraction took 5025.26 ms. Allocated memory was 62.9 MB in the beginning and 111.1 MB in the end (delta: 48.2 MB). Free memory was 41.2 MB in the beginning and 32.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:39,091 INFO L168 Benchmark]: Witness Printer took 77.03 ms. Allocated memory is still 111.1 MB. Free memory was 32.8 MB in the beginning and 30.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:39,100 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 50.3 MB. Free memory is still 33.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 718.45 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 25.2 MB in the beginning and 32.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 62.9 MB. Free memory was 32.0 MB in the beginning and 30.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.37 ms. Allocated memory is still 62.9 MB. Free memory was 30.0 MB in the beginning and 28.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 530.59 ms. Allocated memory is still 62.9 MB. Free memory was 28.7 MB in the beginning and 41.5 MB in the end (delta: -12.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5025.26 ms. Allocated memory was 62.9 MB in the beginning and 111.1 MB in the end (delta: 48.2 MB). Free memory was 41.2 MB in the beginning and 32.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.1 GB. * Witness Printer took 77.03 ms. Allocated memory is still 111.1 MB. Free memory was 32.8 MB in the beginning and 30.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 845 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 68 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 2511 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 209 SDtfs, 192 SDslu, 317 SDs, 0 SdLazy, 140 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 10 MinimizatonAttempts, 179 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 7590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...