./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe034_tso.oepc.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/safe034_tso.oepc.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 11443ba5fcb940082a69ee7d992d4714d4f5f72b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 12:13:16,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 12:13:16,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 12:13:16,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 12:13:16,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 12:13:16,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 12:13:16,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 12:13:16,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 12:13:16,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 12:13:16,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 12:13:16,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 12:13:16,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 12:13:16,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 12:13:16,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 12:13:16,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 12:13:16,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 12:13:16,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 12:13:16,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 12:13:16,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 12:13:16,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 12:13:16,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 12:13:16,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 12:13:16,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 12:13:16,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 12:13:16,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 12:13:16,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 12:13:16,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 12:13:16,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 12:13:16,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 12:13:16,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 12:13:16,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 12:13:16,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 12:13:16,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 12:13:16,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 12:13:16,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 12:13:16,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 12:13:16,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 12:13:16,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 12:13:16,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 12:13:16,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 12:13:16,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 12:13:16,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 12:13:16,920 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 12:13:16,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 12:13:16,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 12:13:16,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 12:13:16,924 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 12:13:16,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 12:13:16,924 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 12:13:16,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 12:13:16,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 12:13:16,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 12:13:16,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 12:13:16,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 12:13:16,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 12:13:16,927 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 12:13:16,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 12:13:16,928 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 12:13:16,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 12:13:16,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 12:13:16,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 12:13:16,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 12:13:16,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 12:13:16,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 12:13:16,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 12:13:16,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 12:13:16,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 12:13:16,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 12:13:16,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 12:13:16,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 12:13:16,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 12:13:16,932 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11443ba5fcb940082a69ee7d992d4714d4f5f72b [2020-12-02 12:13:17,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 12:13:17,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 12:13:17,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 12:13:17,415 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 12:13:17,417 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 12:13:17,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe034_tso.oepc.i [2020-12-02 12:13:17,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94eeeec91/2db4610b1e694db1bdd48a58f96808f4/FLAG46844fced [2020-12-02 12:13:18,278 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 12:13:18,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe034_tso.oepc.i [2020-12-02 12:13:18,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94eeeec91/2db4610b1e694db1bdd48a58f96808f4/FLAG46844fced [2020-12-02 12:13:18,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94eeeec91/2db4610b1e694db1bdd48a58f96808f4 [2020-12-02 12:13:18,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 12:13:18,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 12:13:18,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 12:13:18,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 12:13:18,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 12:13:18,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:13:18" (1/1) ... [2020-12-02 12:13:18,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c766881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:18, skipping insertion in model container [2020-12-02 12:13:18,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:13:18" (1/1) ... [2020-12-02 12:13:18,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 12:13:18,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 12:13:18,831 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/safe034_tso.oepc.i[950,963] [2020-12-02 12:13:19,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:13:19,077 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 12:13:19,092 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/safe034_tso.oepc.i[950,963] [2020-12-02 12:13:19,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:13:19,234 INFO L208 MainTranslator]: Completed translation [2020-12-02 12:13:19,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19 WrapperNode [2020-12-02 12:13:19,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 12:13:19,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 12:13:19,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 12:13:19,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 12:13:19,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19" (1/1) ... [2020-12-02 12:13:19,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19" (1/1) ... [2020-12-02 12:13:19,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 12:13:19,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 12:13:19,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 12:13:19,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 12:13:19,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19" (1/1) ... [2020-12-02 12:13:19,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19" (1/1) ... [2020-12-02 12:13:19,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19" (1/1) ... [2020-12-02 12:13:19,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19" (1/1) ... [2020-12-02 12:13:19,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19" (1/1) ... [2020-12-02 12:13:19,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19" (1/1) ... [2020-12-02 12:13:19,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19" (1/1) ... [2020-12-02 12:13:19,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 12:13:19,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 12:13:19,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 12:13:19,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 12:13:19,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19" (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 12:13:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 12:13:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-02 12:13:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 12:13:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 12:13:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-02 12:13:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-02 12:13:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-02 12:13:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-02 12:13:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-02 12:13:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-02 12:13:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 12:13:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-02 12:13:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 12:13:19,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 12:13:19,447 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 12:13:19,932 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 12:13:19,932 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-02 12:13:19,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:13:19 BoogieIcfgContainer [2020-12-02 12:13:19,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 12:13:19,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 12:13:19,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 12:13:19,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 12:13:19,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:13:18" (1/3) ... [2020-12-02 12:13:19,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8fa31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:13:19, skipping insertion in model container [2020-12-02 12:13:19,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:13:19" (2/3) ... [2020-12-02 12:13:19,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8fa31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:13:19, skipping insertion in model container [2020-12-02 12:13:19,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:13:19" (3/3) ... [2020-12-02 12:13:19,947 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2020-12-02 12:13:19,964 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-02 12:13:19,964 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 12:13:19,969 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 12:13:19,970 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-02 12:13:20,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,017 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,017 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,021 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,021 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,022 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,022 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,022 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,022 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,024 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,026 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,028 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,029 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,029 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,034 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,035 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,046 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,046 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,055 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,055 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:13:20,057 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-02 12:13:20,072 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-02 12:13:20,105 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 12:13:20,106 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 12:13:20,106 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 12:13:20,106 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 12:13:20,106 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 12:13:20,106 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 12:13:20,106 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 12:13:20,106 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 12:13:20,120 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-02 12:13:20,122 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-02 12:13:20,125 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-02 12:13:20,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-02 12:13:20,192 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-02 12:13:20,192 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-02 12:13:20,197 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 53 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 12:13:20,200 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-02 12:13:22,779 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-02 12:13:22,884 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-02 12:13:23,126 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-02 12:13:23,239 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-02 12:13:23,308 INFO L131 LiptonReduction]: Checked pairs total: 2576 [2020-12-02 12:13:23,308 INFO L133 LiptonReduction]: Total number of compositions: 61 [2020-12-02 12:13:23,316 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-02 12:13:23,345 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-02 12:13:23,348 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-02 12:13:23,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-02 12:13:23,356 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:23,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:23,357 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:23,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:23,363 INFO L82 PathProgramCache]: Analyzing trace with hash 694239397, now seen corresponding path program 1 times [2020-12-02 12:13:23,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:23,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867252183] [2020-12-02 12:13:23,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:23,563 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 12:13:23,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867252183] [2020-12-02 12:13:23,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:23,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:13:23,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668858796] [2020-12-02 12:13:23,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 12:13:23,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:23,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 12:13:23,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 12:13:23,592 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-02 12:13:23,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:23,648 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-02 12:13:23,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 12:13:23,649 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-02 12:13:23,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:23,677 INFO L225 Difference]: With dead ends: 362 [2020-12-02 12:13:23,678 INFO L226 Difference]: Without dead ends: 298 [2020-12-02 12:13:23,680 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 12:13:23,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-02 12:13:23,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-02 12:13:23,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-02 12:13:23,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-02 12:13:23,770 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-02 12:13:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:23,771 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-02 12:13:23,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 12:13:23,772 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-02 12:13:23,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 12:13:23,773 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:23,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:23,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 12:13:23,774 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:23,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:23,775 INFO L82 PathProgramCache]: Analyzing trace with hash 46562236, now seen corresponding path program 1 times [2020-12-02 12:13:23,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:23,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716303317] [2020-12-02 12:13:23,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:23,922 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 12:13:23,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716303317] [2020-12-02 12:13:23,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:23,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:13:23,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790969619] [2020-12-02 12:13:23,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:13:23,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:23,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:13:23,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:13:23,927 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-02 12:13:23,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:23,990 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-12-02 12:13:23,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:13:23,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-02 12:13:23,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:23,997 INFO L225 Difference]: With dead ends: 346 [2020-12-02 12:13:23,999 INFO L226 Difference]: Without dead ends: 282 [2020-12-02 12:13:24,001 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 12:13:24,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-12-02 12:13:24,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-12-02 12:13:24,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-12-02 12:13:24,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-12-02 12:13:24,042 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-12-02 12:13:24,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:24,042 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-12-02 12:13:24,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:13:24,043 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-12-02 12:13:24,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 12:13:24,044 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:24,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:24,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 12:13:24,045 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:24,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:24,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1443401920, now seen corresponding path program 1 times [2020-12-02 12:13:24,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:24,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973205078] [2020-12-02 12:13:24,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:24,153 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 12:13:24,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973205078] [2020-12-02 12:13:24,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:24,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:13:24,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762989889] [2020-12-02 12:13:24,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:13:24,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:24,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:13:24,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:13:24,160 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-12-02 12:13:24,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:24,216 INFO L93 Difference]: Finished difference Result 277 states and 699 transitions. [2020-12-02 12:13:24,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:13:24,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-02 12:13:24,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:24,220 INFO L225 Difference]: With dead ends: 277 [2020-12-02 12:13:24,220 INFO L226 Difference]: Without dead ends: 213 [2020-12-02 12:13:24,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 12:13:24,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-12-02 12:13:24,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2020-12-02 12:13:24,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-12-02 12:13:24,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 528 transitions. [2020-12-02 12:13:24,246 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 528 transitions. Word has length 10 [2020-12-02 12:13:24,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:24,246 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 528 transitions. [2020-12-02 12:13:24,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:13:24,246 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 528 transitions. [2020-12-02 12:13:24,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 12:13:24,248 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:24,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:24,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 12:13:24,249 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:24,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:24,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1084426668, now seen corresponding path program 1 times [2020-12-02 12:13:24,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:24,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723061530] [2020-12-02 12:13:24,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:24,382 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 12:13:24,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723061530] [2020-12-02 12:13:24,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:24,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:13:24,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895263024] [2020-12-02 12:13:24,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:13:24,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:24,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:13:24,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:13:24,387 INFO L87 Difference]: Start difference. First operand 213 states and 528 transitions. Second operand 4 states. [2020-12-02 12:13:24,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:24,428 INFO L93 Difference]: Finished difference Result 323 states and 755 transitions. [2020-12-02 12:13:24,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:13:24,429 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-02 12:13:24,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:24,431 INFO L225 Difference]: With dead ends: 323 [2020-12-02 12:13:24,432 INFO L226 Difference]: Without dead ends: 267 [2020-12-02 12:13:24,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 12:13:24,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-12-02 12:13:24,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 243. [2020-12-02 12:13:24,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-12-02 12:13:24,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 589 transitions. [2020-12-02 12:13:24,444 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 589 transitions. Word has length 12 [2020-12-02 12:13:24,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:24,445 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 589 transitions. [2020-12-02 12:13:24,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:13:24,445 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 589 transitions. [2020-12-02 12:13:24,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 12:13:24,447 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:24,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:24,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-02 12:13:24,448 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:24,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:24,449 INFO L82 PathProgramCache]: Analyzing trace with hash -465965508, now seen corresponding path program 1 times [2020-12-02 12:13:24,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:24,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562436335] [2020-12-02 12:13:24,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:24,522 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 12:13:24,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562436335] [2020-12-02 12:13:24,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:24,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:13:24,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187483521] [2020-12-02 12:13:24,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:24,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:24,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:24,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:24,528 INFO L87 Difference]: Start difference. First operand 243 states and 589 transitions. Second operand 5 states. [2020-12-02 12:13:24,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:24,579 INFO L93 Difference]: Finished difference Result 211 states and 463 transitions. [2020-12-02 12:13:24,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:13:24,580 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-02 12:13:24,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:24,581 INFO L225 Difference]: With dead ends: 211 [2020-12-02 12:13:24,581 INFO L226 Difference]: Without dead ends: 160 [2020-12-02 12:13:24,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:13:24,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-12-02 12:13:24,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2020-12-02 12:13:24,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-02 12:13:24,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 332 transitions. [2020-12-02 12:13:24,589 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 332 transitions. Word has length 12 [2020-12-02 12:13:24,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:24,589 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 332 transitions. [2020-12-02 12:13:24,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:24,590 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 332 transitions. [2020-12-02 12:13:24,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-02 12:13:24,591 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:24,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:13:24,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-02 12:13:24,591 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:24,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:24,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1982160192, now seen corresponding path program 1 times [2020-12-02 12:13:24,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:24,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530085551] [2020-12-02 12:13:24,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:24,662 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 12:13:24,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530085551] [2020-12-02 12:13:24,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:24,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-02 12:13:24,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067972745] [2020-12-02 12:13:24,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 12:13:24,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:24,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 12:13:24,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:13:24,666 INFO L87 Difference]: Start difference. First operand 156 states and 332 transitions. Second operand 6 states. [2020-12-02 12:13:24,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:24,719 INFO L93 Difference]: Finished difference Result 139 states and 296 transitions. [2020-12-02 12:13:24,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:13:24,720 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-02 12:13:24,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:24,721 INFO L225 Difference]: With dead ends: 139 [2020-12-02 12:13:24,721 INFO L226 Difference]: Without dead ends: 109 [2020-12-02 12:13:24,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-02 12:13:24,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-12-02 12:13:24,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 93. [2020-12-02 12:13:24,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-02 12:13:24,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 195 transitions. [2020-12-02 12:13:24,727 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 195 transitions. Word has length 15 [2020-12-02 12:13:24,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:24,727 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 195 transitions. [2020-12-02 12:13:24,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 12:13:24,727 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 195 transitions. [2020-12-02 12:13:24,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 12:13:24,728 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:24,729 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 12:13:24,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-02 12:13:24,729 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:24,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:24,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1206418128, now seen corresponding path program 1 times [2020-12-02 12:13:24,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:24,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406698402] [2020-12-02 12:13:24,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:24,794 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 12:13:24,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406698402] [2020-12-02 12:13:24,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:24,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:13:24,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255878248] [2020-12-02 12:13:24,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:24,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:24,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:24,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:24,798 INFO L87 Difference]: Start difference. First operand 93 states and 195 transitions. Second operand 5 states. [2020-12-02 12:13:24,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:24,826 INFO L93 Difference]: Finished difference Result 115 states and 233 transitions. [2020-12-02 12:13:24,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:13:24,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-02 12:13:24,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:24,828 INFO L225 Difference]: With dead ends: 115 [2020-12-02 12:13:24,828 INFO L226 Difference]: Without dead ends: 53 [2020-12-02 12:13:24,829 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 12:13:24,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-02 12:13:24,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-12-02 12:13:24,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-02 12:13:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 97 transitions. [2020-12-02 12:13:24,832 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 97 transitions. Word has length 18 [2020-12-02 12:13:24,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:24,834 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 97 transitions. [2020-12-02 12:13:24,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:24,834 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 97 transitions. [2020-12-02 12:13:24,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 12:13:24,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:24,835 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 12:13:24,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-02 12:13:24,835 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:24,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:24,836 INFO L82 PathProgramCache]: Analyzing trace with hash 785508606, now seen corresponding path program 2 times [2020-12-02 12:13:24,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:24,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644592803] [2020-12-02 12:13:24,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:24,944 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 12:13:24,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644592803] [2020-12-02 12:13:24,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:24,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:13:24,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846936204] [2020-12-02 12:13:24,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:24,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:24,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:24,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:24,947 INFO L87 Difference]: Start difference. First operand 53 states and 97 transitions. Second operand 5 states. [2020-12-02 12:13:24,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:24,974 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-12-02 12:13:24,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:13:24,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-02 12:13:24,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:24,976 INFO L225 Difference]: With dead ends: 67 [2020-12-02 12:13:24,976 INFO L226 Difference]: Without dead ends: 37 [2020-12-02 12:13:24,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:13:24,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-02 12:13:24,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-02 12:13:24,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-02 12:13:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-12-02 12:13:24,979 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-12-02 12:13:24,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:24,979 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-12-02 12:13:24,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:24,980 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-12-02 12:13:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 12:13:24,980 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:13:24,981 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 12:13:24,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-02 12:13:24,981 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:13:24,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:13:24,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1230604400, now seen corresponding path program 3 times [2020-12-02 12:13:24,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:13:24,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365322574] [2020-12-02 12:13:24,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:13:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:13:25,033 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 12:13:25,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365322574] [2020-12-02 12:13:25,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:13:25,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:13:25,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765529545] [2020-12-02 12:13:25,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:13:25,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:13:25,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:13:25,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:13:25,037 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-12-02 12:13:25,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:13:25,059 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-12-02 12:13:25,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:13:25,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-02 12:13:25,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:13:25,060 INFO L225 Difference]: With dead ends: 36 [2020-12-02 12:13:25,060 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 12:13:25,061 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 12:13:25,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 12:13:25,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 12:13:25,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 12:13:25,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 12:13:25,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-02 12:13:25,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:13:25,062 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 12:13:25,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:13:25,062 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 12:13:25,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 12:13:25,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-02 12:13:25,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:13:25 BasicIcfg [2020-12-02 12:13:25,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 12:13:25,068 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 12:13:25,068 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 12:13:25,068 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 12:13:25,069 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:13:19" (3/4) ... [2020-12-02 12:13:25,073 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 12:13:25,081 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-02 12:13:25,082 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-02 12:13:25,082 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-02 12:13:25,087 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-02 12:13:25,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 12:13:25,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:13:25,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:13:25,160 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 12:13:25,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 12:13:25,165 INFO L168 Benchmark]: Toolchain (without parser) took 6589.22 ms. Allocated memory was 56.6 MB in the beginning and 121.6 MB in the end (delta: 65.0 MB). Free memory was 31.9 MB in the beginning and 36.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 61.5 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:25,166 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 41.9 MB. Free memory was 21.7 MB in the beginning and 21.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:13:25,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.49 ms. Allocated memory is still 56.6 MB. Free memory was 31.7 MB in the beginning and 26.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:25,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.99 ms. Allocated memory is still 56.6 MB. Free memory was 26.0 MB in the beginning and 38.7 MB in the end (delta: -12.7 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:25,170 INFO L168 Benchmark]: Boogie Preprocessor took 39.21 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 37.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:13:25,171 INFO L168 Benchmark]: RCFGBuilder took 599.74 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 37.4 MB in the beginning and 41.9 MB in the end (delta: -4.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:25,172 INFO L168 Benchmark]: TraceAbstraction took 5128.16 ms. Allocated memory was 69.2 MB in the beginning and 121.6 MB in the end (delta: 52.4 MB). Free memory was 41.6 MB in the beginning and 39.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 54.5 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:25,173 INFO L168 Benchmark]: Witness Printer took 92.88 ms. Allocated memory is still 121.6 MB. Free memory was 39.6 MB in the beginning and 36.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:13:25,181 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 41.9 MB. Free memory was 21.7 MB in the beginning and 21.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 660.49 ms. Allocated memory is still 56.6 MB. Free memory was 31.7 MB in the beginning and 26.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.99 ms. Allocated memory is still 56.6 MB. Free memory was 26.0 MB in the beginning and 38.7 MB in the end (delta: -12.7 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.21 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 37.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 599.74 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 37.4 MB in the beginning and 41.9 MB in the end (delta: -4.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5128.16 ms. Allocated memory was 69.2 MB in the beginning and 121.6 MB in the end (delta: 52.4 MB). Free memory was 41.6 MB in the beginning and 39.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 54.5 MB. Max. memory is 16.1 GB. * Witness Printer took 92.88 ms. Allocated memory is still 121.6 MB. Free memory was 39.6 MB in the beginning and 36.4 MB in the end (delta: 3.1 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 835 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2576 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: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 200 SDtfs, 167 SDslu, 330 SDs, 0 SdLazy, 126 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s 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, 9 MinimizatonAttempts, 44 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 5031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...