./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe011_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/safe011_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 111652fecc1f9904459ad425a5e9e5680d2d8f19 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 12:07:31,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 12:07:31,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 12:07:31,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 12:07:31,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 12:07:31,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 12:07:31,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 12:07:31,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 12:07:31,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 12:07:31,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 12:07:31,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 12:07:31,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 12:07:31,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 12:07:31,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 12:07:31,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 12:07:31,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 12:07:31,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 12:07:31,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 12:07:31,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 12:07:31,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 12:07:31,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 12:07:31,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 12:07:31,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 12:07:31,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 12:07:31,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 12:07:31,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 12:07:31,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 12:07:31,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 12:07:31,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 12:07:31,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 12:07:31,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 12:07:31,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 12:07:31,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 12:07:31,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 12:07:31,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 12:07:31,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 12:07:31,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 12:07:31,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 12:07:31,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 12:07:31,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 12:07:31,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 12:07:31,396 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 12:07:31,455 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 12:07:31,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 12:07:31,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 12:07:31,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 12:07:31,459 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 12:07:31,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 12:07:31,460 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 12:07:31,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 12:07:31,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 12:07:31,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 12:07:31,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 12:07:31,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 12:07:31,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 12:07:31,463 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 12:07:31,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 12:07:31,464 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 12:07:31,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 12:07:31,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 12:07:31,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 12:07:31,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 12:07:31,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 12:07:31,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 12:07:31,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 12:07:31,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 12:07:31,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 12:07:31,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 12:07:31,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 12:07:31,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 12:07:31,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 12:07:31,468 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 111652fecc1f9904459ad425a5e9e5680d2d8f19 [2020-12-02 12:07:31,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 12:07:31,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 12:07:31,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 12:07:31,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 12:07:31,914 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 12:07:31,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe011_tso.oepc.i [2020-12-02 12:07:32,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eeccec1a/271e705a962e468eadeee6e9ff5448b7/FLAG1455b223a [2020-12-02 12:07:32,732 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 12:07:32,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe011_tso.oepc.i [2020-12-02 12:07:32,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eeccec1a/271e705a962e468eadeee6e9ff5448b7/FLAG1455b223a [2020-12-02 12:07:32,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eeccec1a/271e705a962e468eadeee6e9ff5448b7 [2020-12-02 12:07:32,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 12:07:32,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 12:07:32,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 12:07:32,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 12:07:32,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 12:07:32,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:07:32" (1/1) ... [2020-12-02 12:07:32,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ee25c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:32, skipping insertion in model container [2020-12-02 12:07:32,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:07:32" (1/1) ... [2020-12-02 12:07:32,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 12:07:33,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 12:07:33,206 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/safe011_tso.oepc.i[950,963] [2020-12-02 12:07:33,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:07:33,496 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 12:07:33,514 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/safe011_tso.oepc.i[950,963] [2020-12-02 12:07:33,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 12:07:33,708 INFO L208 MainTranslator]: Completed translation [2020-12-02 12:07:33,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33 WrapperNode [2020-12-02 12:07:33,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 12:07:33,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 12:07:33,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 12:07:33,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 12:07:33,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33" (1/1) ... [2020-12-02 12:07:33,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33" (1/1) ... [2020-12-02 12:07:33,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 12:07:33,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 12:07:33,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 12:07:33,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 12:07:33,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33" (1/1) ... [2020-12-02 12:07:33,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33" (1/1) ... [2020-12-02 12:07:33,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33" (1/1) ... [2020-12-02 12:07:33,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33" (1/1) ... [2020-12-02 12:07:33,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33" (1/1) ... [2020-12-02 12:07:33,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33" (1/1) ... [2020-12-02 12:07:33,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33" (1/1) ... [2020-12-02 12:07:33,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 12:07:33,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 12:07:33,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 12:07:33,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 12:07:33,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33" (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 12:07:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 12:07:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-02 12:07:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 12:07:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 12:07:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-02 12:07:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-02 12:07:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-02 12:07:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-02 12:07:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-02 12:07:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-02 12:07:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 12:07:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-02 12:07:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 12:07:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 12:07:33,921 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 12:07:34,455 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 12:07:34,456 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-02 12:07:34,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:07:34 BoogieIcfgContainer [2020-12-02 12:07:34,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 12:07:34,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 12:07:34,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 12:07:34,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 12:07:34,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:07:32" (1/3) ... [2020-12-02 12:07:34,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fec0848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:07:34, skipping insertion in model container [2020-12-02 12:07:34,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:07:33" (2/3) ... [2020-12-02 12:07:34,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fec0848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:07:34, skipping insertion in model container [2020-12-02 12:07:34,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:07:34" (3/3) ... [2020-12-02 12:07:34,469 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2020-12-02 12:07:34,487 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-02 12:07:34,487 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 12:07:34,491 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 12:07:34,492 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-02 12:07:34,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,537 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,537 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,538 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,538 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,538 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,538 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,539 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,539 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,541 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,541 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,542 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,542 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,545 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,545 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,545 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,546 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,546 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,546 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,546 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,547 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,547 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,552 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,552 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,558 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,563 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,563 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,563 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,564 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-02 12:07:34,567 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-02 12:07:34,581 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-02 12:07:34,613 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 12:07:34,614 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 12:07:34,614 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 12:07:34,614 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 12:07:34,615 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 12:07:34,615 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 12:07:34,615 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 12:07:34,615 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 12:07:34,631 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-02 12:07:34,634 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-02 12:07:34,638 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-02 12:07:34,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2020-12-02 12:07:34,693 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2020-12-02 12:07:34,693 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-02 12:07:34,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-02 12:07:34,701 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-02 12:07:37,488 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-02 12:07:37,812 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-02 12:07:37,917 INFO L131 LiptonReduction]: Checked pairs total: 2448 [2020-12-02 12:07:37,917 INFO L133 LiptonReduction]: Total number of compositions: 61 [2020-12-02 12:07:37,925 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-02 12:07:37,962 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-02 12:07:37,968 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-02 12:07:37,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-02 12:07:37,979 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:07:37,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:07:37,981 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:07:37,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:07:37,988 INFO L82 PathProgramCache]: Analyzing trace with hash 70130421, now seen corresponding path program 1 times [2020-12-02 12:07:37,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:07:38,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151377459] [2020-12-02 12:07:38,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:07:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:07:38,193 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 12:07:38,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151377459] [2020-12-02 12:07:38,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:07:38,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:07:38,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153968712] [2020-12-02 12:07:38,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 12:07:38,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:07:38,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 12:07:38,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 12:07:38,233 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-02 12:07:38,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:07:38,289 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-02 12:07:38,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 12:07:38,291 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-02 12:07:38,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:07:38,321 INFO L225 Difference]: With dead ends: 362 [2020-12-02 12:07:38,322 INFO L226 Difference]: Without dead ends: 298 [2020-12-02 12:07:38,324 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 12:07:38,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-02 12:07:38,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-02 12:07:38,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-02 12:07:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-02 12:07:38,413 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-02 12:07:38,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:07:38,414 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-02 12:07:38,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 12:07:38,415 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-02 12:07:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-02 12:07:38,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:07:38,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:07:38,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 12:07:38,417 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:07:38,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:07:38,417 INFO L82 PathProgramCache]: Analyzing trace with hash -2120938041, now seen corresponding path program 1 times [2020-12-02 12:07:38,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:07:38,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470390330] [2020-12-02 12:07:38,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:07:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:07:38,651 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 12:07:38,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470390330] [2020-12-02 12:07:38,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:07:38,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 12:07:38,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090123216] [2020-12-02 12:07:38,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:07:38,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:07:38,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:07:38,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:07:38,657 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-02 12:07:38,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:07:38,710 INFO L93 Difference]: Finished difference Result 572 states and 1557 transitions. [2020-12-02 12:07:38,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:07:38,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-02 12:07:38,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:07:38,715 INFO L225 Difference]: With dead ends: 572 [2020-12-02 12:07:38,715 INFO L226 Difference]: Without dead ends: 420 [2020-12-02 12:07:38,716 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 12:07:38,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-12-02 12:07:38,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 340. [2020-12-02 12:07:38,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-12-02 12:07:38,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 926 transitions. [2020-12-02 12:07:38,740 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 926 transitions. Word has length 9 [2020-12-02 12:07:38,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:07:38,741 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 926 transitions. [2020-12-02 12:07:38,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:07:38,741 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 926 transitions. [2020-12-02 12:07:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 12:07:38,743 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:07:38,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:07:38,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 12:07:38,743 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:07:38,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:07:38,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1222306100, now seen corresponding path program 1 times [2020-12-02 12:07:38,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:07:38,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094425665] [2020-12-02 12:07:38,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:07:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:07:38,818 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 12:07:38,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094425665] [2020-12-02 12:07:38,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:07:38,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:07:38,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355019733] [2020-12-02 12:07:38,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:07:38,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:07:38,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:07:38,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:07:38,821 INFO L87 Difference]: Start difference. First operand 340 states and 926 transitions. Second operand 5 states. [2020-12-02 12:07:38,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:07:38,892 INFO L93 Difference]: Finished difference Result 464 states and 1193 transitions. [2020-12-02 12:07:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:07:38,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-02 12:07:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:07:38,896 INFO L225 Difference]: With dead ends: 464 [2020-12-02 12:07:38,896 INFO L226 Difference]: Without dead ends: 378 [2020-12-02 12:07:38,897 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 12:07:38,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-12-02 12:07:38,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 286. [2020-12-02 12:07:38,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-12-02 12:07:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 766 transitions. [2020-12-02 12:07:38,915 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 766 transitions. Word has length 10 [2020-12-02 12:07:38,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:07:38,915 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 766 transitions. [2020-12-02 12:07:38,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:07:38,915 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 766 transitions. [2020-12-02 12:07:38,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 12:07:38,917 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:07:38,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:07:38,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 12:07:38,918 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:07:38,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:07:38,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1325562886, now seen corresponding path program 1 times [2020-12-02 12:07:38,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:07:38,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051009619] [2020-12-02 12:07:38,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:07:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:07:38,992 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 12:07:38,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051009619] [2020-12-02 12:07:38,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:07:38,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:07:38,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082706370] [2020-12-02 12:07:38,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:07:38,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:07:38,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:07:38,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:07:38,998 INFO L87 Difference]: Start difference. First operand 286 states and 766 transitions. Second operand 5 states. [2020-12-02 12:07:39,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:07:39,058 INFO L93 Difference]: Finished difference Result 436 states and 1097 transitions. [2020-12-02 12:07:39,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:07:39,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-02 12:07:39,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:07:39,062 INFO L225 Difference]: With dead ends: 436 [2020-12-02 12:07:39,062 INFO L226 Difference]: Without dead ends: 358 [2020-12-02 12:07:39,062 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 12:07:39,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-12-02 12:07:39,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 270. [2020-12-02 12:07:39,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-12-02 12:07:39,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 712 transitions. [2020-12-02 12:07:39,075 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 712 transitions. Word has length 10 [2020-12-02 12:07:39,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:07:39,076 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 712 transitions. [2020-12-02 12:07:39,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:07:39,076 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 712 transitions. [2020-12-02 12:07:39,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 12:07:39,078 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:07:39,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:07:39,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-02 12:07:39,078 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:07:39,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:07:39,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1857187595, now seen corresponding path program 1 times [2020-12-02 12:07:39,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:07:39,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975063890] [2020-12-02 12:07:39,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:07:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:07:39,144 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 12:07:39,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975063890] [2020-12-02 12:07:39,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:07:39,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:07:39,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46650855] [2020-12-02 12:07:39,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:07:39,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:07:39,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:07:39,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:07:39,147 INFO L87 Difference]: Start difference. First operand 270 states and 712 transitions. Second operand 5 states. [2020-12-02 12:07:39,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:07:39,189 INFO L93 Difference]: Finished difference Result 382 states and 967 transitions. [2020-12-02 12:07:39,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:07:39,190 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-02 12:07:39,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:07:39,200 INFO L225 Difference]: With dead ends: 382 [2020-12-02 12:07:39,200 INFO L226 Difference]: Without dead ends: 340 [2020-12-02 12:07:39,200 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 12:07:39,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-12-02 12:07:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 264. [2020-12-02 12:07:39,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-12-02 12:07:39,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 690 transitions. [2020-12-02 12:07:39,211 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 690 transitions. Word has length 11 [2020-12-02 12:07:39,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:07:39,212 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 690 transitions. [2020-12-02 12:07:39,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:07:39,212 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 690 transitions. [2020-12-02 12:07:39,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 12:07:39,213 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:07:39,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:07:39,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-02 12:07:39,214 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:07:39,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:07:39,214 INFO L82 PathProgramCache]: Analyzing trace with hash 575547449, now seen corresponding path program 1 times [2020-12-02 12:07:39,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:07:39,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196359548] [2020-12-02 12:07:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:07:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:07:39,270 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 12:07:39,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196359548] [2020-12-02 12:07:39,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:07:39,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:07:39,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966243111] [2020-12-02 12:07:39,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:07:39,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:07:39,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:07:39,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:07:39,273 INFO L87 Difference]: Start difference. First operand 264 states and 690 transitions. Second operand 5 states. [2020-12-02 12:07:39,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:07:39,311 INFO L93 Difference]: Finished difference Result 418 states and 1021 transitions. [2020-12-02 12:07:39,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:07:39,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-02 12:07:39,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:07:39,314 INFO L225 Difference]: With dead ends: 418 [2020-12-02 12:07:39,315 INFO L226 Difference]: Without dead ends: 328 [2020-12-02 12:07:39,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 12:07:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-12-02 12:07:39,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 248. [2020-12-02 12:07:39,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-12-02 12:07:39,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 632 transitions. [2020-12-02 12:07:39,325 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 632 transitions. Word has length 12 [2020-12-02 12:07:39,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:07:39,326 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 632 transitions. [2020-12-02 12:07:39,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:07:39,326 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 632 transitions. [2020-12-02 12:07:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 12:07:39,327 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:07:39,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:07:39,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-02 12:07:39,327 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:07:39,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:07:39,328 INFO L82 PathProgramCache]: Analyzing trace with hash -2140910896, now seen corresponding path program 1 times [2020-12-02 12:07:39,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:07:39,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405563338] [2020-12-02 12:07:39,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:07:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:07:39,393 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 12:07:39,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405563338] [2020-12-02 12:07:39,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:07:39,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:07:39,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88579274] [2020-12-02 12:07:39,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 12:07:39,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:07:39,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 12:07:39,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:07:39,395 INFO L87 Difference]: Start difference. First operand 248 states and 632 transitions. Second operand 6 states. [2020-12-02 12:07:39,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:07:39,444 INFO L93 Difference]: Finished difference Result 299 states and 726 transitions. [2020-12-02 12:07:39,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 12:07:39,445 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-02 12:07:39,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:07:39,446 INFO L225 Difference]: With dead ends: 299 [2020-12-02 12:07:39,446 INFO L226 Difference]: Without dead ends: 158 [2020-12-02 12:07:39,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-02 12:07:39,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-12-02 12:07:39,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 142. [2020-12-02 12:07:39,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-12-02 12:07:39,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 318 transitions. [2020-12-02 12:07:39,452 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 318 transitions. Word has length 12 [2020-12-02 12:07:39,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:07:39,453 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 318 transitions. [2020-12-02 12:07:39,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 12:07:39,453 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 318 transitions. [2020-12-02 12:07:39,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 12:07:39,454 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:07:39,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:07:39,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-02 12:07:39,454 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:07:39,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:07:39,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1024807024, now seen corresponding path program 1 times [2020-12-02 12:07:39,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:07:39,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738255962] [2020-12-02 12:07:39,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:07:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:07:39,507 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 12:07:39,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738255962] [2020-12-02 12:07:39,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:07:39,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 12:07:39,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318214043] [2020-12-02 12:07:39,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-02 12:07:39,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:07:39,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-02 12:07:39,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-02 12:07:39,517 INFO L87 Difference]: Start difference. First operand 142 states and 318 transitions. Second operand 4 states. [2020-12-02 12:07:39,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:07:39,548 INFO L93 Difference]: Finished difference Result 152 states and 308 transitions. [2020-12-02 12:07:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 12:07:39,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-02 12:07:39,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:07:39,550 INFO L225 Difference]: With dead ends: 152 [2020-12-02 12:07:39,550 INFO L226 Difference]: Without dead ends: 120 [2020-12-02 12:07:39,550 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 12:07:39,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-12-02 12:07:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-12-02 12:07:39,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-02 12:07:39,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 243 transitions. [2020-12-02 12:07:39,556 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 243 transitions. Word has length 13 [2020-12-02 12:07:39,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:07:39,556 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 243 transitions. [2020-12-02 12:07:39,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-02 12:07:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 243 transitions. [2020-12-02 12:07:39,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 12:07:39,557 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:07:39,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:07:39,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-02 12:07:39,558 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:07:39,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:07:39,558 INFO L82 PathProgramCache]: Analyzing trace with hash -704924573, now seen corresponding path program 1 times [2020-12-02 12:07:39,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:07:39,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150744794] [2020-12-02 12:07:39,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:07:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:07:39,622 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 12:07:39,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150744794] [2020-12-02 12:07:39,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:07:39,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-02 12:07:39,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118044727] [2020-12-02 12:07:39,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 12:07:39,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:07:39,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 12:07:39,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 12:07:39,626 INFO L87 Difference]: Start difference. First operand 120 states and 243 transitions. Second operand 5 states. [2020-12-02 12:07:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:07:39,673 INFO L93 Difference]: Finished difference Result 106 states and 197 transitions. [2020-12-02 12:07:39,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:07:39,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-02 12:07:39,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:07:39,675 INFO L225 Difference]: With dead ends: 106 [2020-12-02 12:07:39,675 INFO L226 Difference]: Without dead ends: 77 [2020-12-02 12:07:39,676 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 12:07:39,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-12-02 12:07:39,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-12-02 12:07:39,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-02 12:07:39,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 133 transitions. [2020-12-02 12:07:39,681 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 133 transitions. Word has length 14 [2020-12-02 12:07:39,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:07:39,681 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 133 transitions. [2020-12-02 12:07:39,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 12:07:39,682 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 133 transitions. [2020-12-02 12:07:39,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-02 12:07:39,683 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 12:07:39,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 12:07:39,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-02 12:07:39,683 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 12:07:39,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 12:07:39,684 INFO L82 PathProgramCache]: Analyzing trace with hash -237179704, now seen corresponding path program 1 times [2020-12-02 12:07:39,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 12:07:39,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410917135] [2020-12-02 12:07:39,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 12:07:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 12:07:39,749 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 12:07:39,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410917135] [2020-12-02 12:07:39,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 12:07:39,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-02 12:07:39,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976097966] [2020-12-02 12:07:39,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 12:07:39,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 12:07:39,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 12:07:39,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-02 12:07:39,753 INFO L87 Difference]: Start difference. First operand 77 states and 133 transitions. Second operand 6 states. [2020-12-02 12:07:39,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 12:07:39,782 INFO L93 Difference]: Finished difference Result 67 states and 118 transitions. [2020-12-02 12:07:39,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 12:07:39,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-02 12:07:39,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 12:07:39,783 INFO L225 Difference]: With dead ends: 67 [2020-12-02 12:07:39,783 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 12:07:39,784 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 12:07:39,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 12:07:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 12:07:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 12:07:39,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 12:07:39,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-12-02 12:07:39,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 12:07:39,786 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 12:07:39,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 12:07:39,786 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 12:07:39,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 12:07:39,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-02 12:07:39,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:07:39 BasicIcfg [2020-12-02 12:07:39,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 12:07:39,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 12:07:39,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 12:07:39,792 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 12:07:39,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:07:34" (3/4) ... [2020-12-02 12:07:39,796 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 12:07:39,805 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-02 12:07:39,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-02 12:07:39,806 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-02 12:07:39,811 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-02 12:07:39,812 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 12:07:39,812 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:07:39,812 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 12:07:39,859 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 12:07:39,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 12:07:39,861 INFO L168 Benchmark]: Toolchain (without parser) took 6911.49 ms. Allocated memory was 39.8 MB in the beginning and 132.1 MB in the end (delta: 92.3 MB). Free memory was 24.0 MB in the beginning and 70.1 MB in the end (delta: -46.0 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:07:39,864 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 39.8 MB. Free memory was 24.3 MB in the beginning and 24.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:07:39,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.37 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 23.8 MB in the beginning and 22.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2020-12-02 12:07:39,867 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.90 ms. Allocated memory is still 48.2 MB. Free memory was 21.9 MB in the beginning and 20.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:07:39,869 INFO L168 Benchmark]: Boogie Preprocessor took 29.32 ms. Allocated memory is still 48.2 MB. Free memory was 20.1 MB in the beginning and 18.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 12:07:39,870 INFO L168 Benchmark]: RCFGBuilder took 666.08 ms. Allocated memory is still 48.2 MB. Free memory was 18.7 MB in the beginning and 18.7 MB in the end (delta: 60.4 kB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-12-02 12:07:39,871 INFO L168 Benchmark]: TraceAbstraction took 5330.28 ms. Allocated memory was 48.2 MB in the beginning and 132.1 MB in the end (delta: 83.9 MB). Free memory was 18.5 MB in the beginning and 72.2 MB in the end (delta: -53.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2020-12-02 12:07:39,875 INFO L168 Benchmark]: Witness Printer took 68.33 ms. Allocated memory is still 132.1 MB. Free memory was 72.2 MB in the beginning and 70.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 12:07:39,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 39.8 MB. Free memory was 24.3 MB in the beginning and 24.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 757.37 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 23.8 MB in the beginning and 22.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.90 ms. Allocated memory is still 48.2 MB. Free memory was 21.9 MB in the beginning and 20.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.32 ms. Allocated memory is still 48.2 MB. Free memory was 20.1 MB in the beginning and 18.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 666.08 ms. Allocated memory is still 48.2 MB. Free memory was 18.7 MB in the beginning and 18.7 MB in the end (delta: 60.4 kB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5330.28 ms. Allocated memory was 48.2 MB in the beginning and 132.1 MB in the end (delta: 83.9 MB). Free memory was 18.5 MB in the beginning and 72.2 MB in the end (delta: -53.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. * Witness Printer took 68.33 ms. Allocated memory is still 132.1 MB. Free memory was 72.2 MB in the beginning and 70.1 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 815 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 25 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.2s, 82 PlacesBefore, 32 PlacesAfterwards, 74 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2448 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, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 256 SDtfs, 270 SDslu, 436 SDs, 0 SdLazy, 155 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 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, 432 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 5235 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...