./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe000_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe000_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer --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 69a6a28dd1255bef403cf689b671dd8e1090efae .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:30:27,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:30:27,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:30:27,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:30:27,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:30:27,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:30:27,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:30:27,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:30:27,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:30:27,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:30:27,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:30:27,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:30:27,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:30:27,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:30:27,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:30:27,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:30:27,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:30:27,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:30:27,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:30:27,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:30:27,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:30:27,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:30:27,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:30:27,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:30:27,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:30:27,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:30:27,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:30:27,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:30:27,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:30:27,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:30:27,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:30:27,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:30:27,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:30:27,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:30:27,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:30:27,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:30:27,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:30:27,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:30:27,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:30:27,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:30:27,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:30:27,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:30:27,409 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:30:27,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:30:27,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:30:27,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:30:27,412 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:30:27,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:30:27,412 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:30:27,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:30:27,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:30:27,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:30:27,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:30:27,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:30:27,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:30:27,415 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:30:27,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:30:27,415 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:30:27,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:30:27,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:30:27,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:30:27,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:30:27,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:30:27,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:30:27,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:30:27,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:30:27,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:30:27,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:30:27,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:30:27,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:30:27,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:30:27,419 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:/tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69a6a28dd1255bef403cf689b671dd8e1090efae [2020-12-01 15:30:27,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:30:27,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:30:27,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:30:27,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:30:27,773 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:30:27,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe000_tso.opt.i [2020-12-01 15:30:27,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/data/a657870c7/e1936fc3e1384689ad5f0f11a942fd82/FLAGeddfbeaab [2020-12-01 15:30:28,393 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:30:28,393 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/sv-benchmarks/c/pthread-wmm/safe000_tso.opt.i [2020-12-01 15:30:28,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/data/a657870c7/e1936fc3e1384689ad5f0f11a942fd82/FLAGeddfbeaab [2020-12-01 15:30:28,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/data/a657870c7/e1936fc3e1384689ad5f0f11a942fd82 [2020-12-01 15:30:28,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:30:28,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:30:28,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:30:28,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:30:28,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:30:28,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:30:28" (1/1) ... [2020-12-01 15:30:28,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488a0f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:28, skipping insertion in model container [2020-12-01 15:30:28,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:30:28" (1/1) ... [2020-12-01 15:30:28,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:30:28,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:30:29,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:30:29,136 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:30:29,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:30:29,301 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:30:29,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29 WrapperNode [2020-12-01 15:30:29,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:30:29,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:30:29,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:30:29,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:30:29,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29" (1/1) ... [2020-12-01 15:30:29,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29" (1/1) ... [2020-12-01 15:30:29,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:30:29,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:30:29,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:30:29,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:30:29,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29" (1/1) ... [2020-12-01 15:30:29,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29" (1/1) ... [2020-12-01 15:30:29,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29" (1/1) ... [2020-12-01 15:30:29,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29" (1/1) ... [2020-12-01 15:30:29,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29" (1/1) ... [2020-12-01 15:30:29,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29" (1/1) ... [2020-12-01 15:30:29,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29" (1/1) ... [2020-12-01 15:30:29,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:30:29,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:30:29,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:30:29,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:30:29,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:30:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:30:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-01 15:30:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:30:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:30:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-01 15:30:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-01 15:30:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-01 15:30:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-01 15:30:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-01 15:30:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-01 15:30:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:30:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-01 15:30:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:30:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:30:29,488 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-01 15:30:29,910 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:30:29,910 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 15:30:29,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:30:29 BoogieIcfgContainer [2020-12-01 15:30:29,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:30:29,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:30:29,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:30:29,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:30:29,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:30:28" (1/3) ... [2020-12-01 15:30:29,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491ea7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:30:29, skipping insertion in model container [2020-12-01 15:30:29,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:30:29" (2/3) ... [2020-12-01 15:30:29,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491ea7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:30:29, skipping insertion in model container [2020-12-01 15:30:29,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:30:29" (3/3) ... [2020-12-01 15:30:29,922 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.opt.i [2020-12-01 15:30:29,938 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-01 15:30:29,938 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:30:29,942 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:30:29,943 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-01 15:30:29,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,979 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,979 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,980 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,982 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,983 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,983 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,984 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,986 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,986 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,987 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,987 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,991 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,991 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,992 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,992 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,997 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,997 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,998 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:29,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:30,000 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:30,001 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:30,001 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:30,001 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:30:30,003 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-01 15:30:30,025 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-01 15:30:30,060 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:30:30,060 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:30:30,060 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:30:30,060 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:30:30,061 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:30:30,061 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:30:30,061 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:30:30,061 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:30:30,075 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-01 15:30:30,077 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-12-01 15:30:30,080 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-12-01 15:30:30,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-12-01 15:30:30,131 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-12-01 15:30:30,131 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-01 15:30:30,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 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. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-12-01 15:30:30,149 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-12-01 15:30:34,176 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-01 15:30:34,476 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-01 15:30:34,607 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-12-01 15:30:34,607 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-12-01 15:30:34,616 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-01 15:30:34,665 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-01 15:30:34,667 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-01 15:30:34,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 15:30:34,676 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:34,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:34,677 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:34,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:34,681 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-12-01 15:30:34,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:34,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520609941] [2020-12-01 15:30:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:34,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:30:34,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520609941] [2020-12-01 15:30:34,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:34,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:30:34,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590267514] [2020-12-01 15:30:34,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:30:34,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:34,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:30:34,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:30:34,954 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-01 15:30:34,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:34,984 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-01 15:30:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:30:34,985 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-01 15:30:34,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:35,001 INFO L225 Difference]: With dead ends: 362 [2020-12-01 15:30:35,001 INFO L226 Difference]: Without dead ends: 298 [2020-12-01 15:30:35,003 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 [2020-12-01 15:30:35,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-01 15:30:35,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-01 15:30:35,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-01 15:30:35,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-01 15:30:35,087 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-01 15:30:35,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:35,088 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-01 15:30:35,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:30:35,090 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-01 15:30:35,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:30:35,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:35,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:35,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:30:35,093 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:35,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:35,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-12-01 15:30:35,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:35,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506398904] [2020-12-01 15:30:35,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:30:35,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506398904] [2020-12-01 15:30:35,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:35,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:30:35,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239340420] [2020-12-01 15:30:35,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:30:35,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:35,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:30:35,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:30:35,220 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-01 15:30:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:35,251 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-12-01 15:30:35,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:30:35,251 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-01 15:30:35,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:35,255 INFO L225 Difference]: With dead ends: 330 [2020-12-01 15:30:35,255 INFO L226 Difference]: Without dead ends: 266 [2020-12-01 15:30:35,256 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 [2020-12-01 15:30:35,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-01 15:30:35,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-12-01 15:30:35,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-12-01 15:30:35,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-12-01 15:30:35,294 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-12-01 15:30:35,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:35,294 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-12-01 15:30:35,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:30:35,295 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-12-01 15:30:35,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:30:35,299 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:35,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:35,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:30:35,299 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:35,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:35,301 INFO L82 PathProgramCache]: Analyzing trace with hash 9178769, now seen corresponding path program 1 times [2020-12-01 15:30:35,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:35,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040937130] [2020-12-01 15:30:35,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:35,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:30:35,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040937130] [2020-12-01 15:30:35,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:35,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:30:35,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087152981] [2020-12-01 15:30:35,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:30:35,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:35,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:30:35,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:30:35,436 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-12-01 15:30:35,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:35,515 INFO L93 Difference]: Finished difference Result 285 states and 761 transitions. [2020-12-01 15:30:35,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:30:35,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-01 15:30:35,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:35,519 INFO L225 Difference]: With dead ends: 285 [2020-12-01 15:30:35,519 INFO L226 Difference]: Without dead ends: 261 [2020-12-01 15:30:35,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:30:35,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-12-01 15:30:35,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2020-12-01 15:30:35,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-12-01 15:30:35,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 717 transitions. [2020-12-01 15:30:35,551 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 717 transitions. Word has length 10 [2020-12-01 15:30:35,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:35,551 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 717 transitions. [2020-12-01 15:30:35,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:30:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 717 transitions. [2020-12-01 15:30:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:30:35,554 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:35,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:35,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:30:35,554 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:35,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:35,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1127596450, now seen corresponding path program 1 times [2020-12-01 15:30:35,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:35,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898697837] [2020-12-01 15:30:35,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:35,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:30:35,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898697837] [2020-12-01 15:30:35,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:35,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:30:35,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742806293] [2020-12-01 15:30:35,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:30:35,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:35,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:30:35,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:30:35,649 INFO L87 Difference]: Start difference. First operand 261 states and 717 transitions. Second operand 4 states. [2020-12-01 15:30:35,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:35,677 INFO L93 Difference]: Finished difference Result 281 states and 743 transitions. [2020-12-01 15:30:35,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:30:35,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-01 15:30:35,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:35,682 INFO L225 Difference]: With dead ends: 281 [2020-12-01 15:30:35,682 INFO L226 Difference]: Without dead ends: 241 [2020-12-01 15:30:35,683 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 [2020-12-01 15:30:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-12-01 15:30:35,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-12-01 15:30:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-12-01 15:30:35,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 651 transitions. [2020-12-01 15:30:35,707 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 651 transitions. Word has length 11 [2020-12-01 15:30:35,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:35,711 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 651 transitions. [2020-12-01 15:30:35,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:30:35,711 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 651 transitions. [2020-12-01 15:30:35,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 15:30:35,718 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:35,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:35,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:30:35,718 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:35,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:35,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1343804868, now seen corresponding path program 1 times [2020-12-01 15:30:35,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:35,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543121748] [2020-12-01 15:30:35,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:35,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:30:35,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543121748] [2020-12-01 15:30:35,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:35,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:30:35,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471974202] [2020-12-01 15:30:35,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:30:35,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:35,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:30:35,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:30:35,828 INFO L87 Difference]: Start difference. First operand 241 states and 651 transitions. Second operand 4 states. [2020-12-01 15:30:35,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:35,870 INFO L93 Difference]: Finished difference Result 263 states and 686 transitions. [2020-12-01 15:30:35,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:30:35,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-01 15:30:35,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:35,873 INFO L225 Difference]: With dead ends: 263 [2020-12-01 15:30:35,873 INFO L226 Difference]: Without dead ends: 233 [2020-12-01 15:30:35,874 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 [2020-12-01 15:30:35,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-12-01 15:30:35,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2020-12-01 15:30:35,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-01 15:30:35,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 623 transitions. [2020-12-01 15:30:35,885 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 623 transitions. Word has length 12 [2020-12-01 15:30:35,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:35,885 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 623 transitions. [2020-12-01 15:30:35,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:30:35,886 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 623 transitions. [2020-12-01 15:30:35,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:30:35,888 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:35,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:35,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:30:35,888 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:35,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:35,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1736979236, now seen corresponding path program 1 times [2020-12-01 15:30:35,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:35,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170066114] [2020-12-01 15:30:35,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:35,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:30:35,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170066114] [2020-12-01 15:30:35,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:35,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:30:35,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525561075] [2020-12-01 15:30:35,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:30:35,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:35,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:30:35,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:30:35,993 INFO L87 Difference]: Start difference. First operand 233 states and 623 transitions. Second operand 4 states. [2020-12-01 15:30:36,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:36,033 INFO L93 Difference]: Finished difference Result 307 states and 780 transitions. [2020-12-01 15:30:36,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:30:36,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-01 15:30:36,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:36,036 INFO L225 Difference]: With dead ends: 307 [2020-12-01 15:30:36,037 INFO L226 Difference]: Without dead ends: 245 [2020-12-01 15:30:36,037 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 [2020-12-01 15:30:36,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-12-01 15:30:36,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 221. [2020-12-01 15:30:36,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-12-01 15:30:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 569 transitions. [2020-12-01 15:30:36,047 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 569 transitions. Word has length 13 [2020-12-01 15:30:36,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:36,047 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 569 transitions. [2020-12-01 15:30:36,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:30:36,047 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 569 transitions. [2020-12-01 15:30:36,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:30:36,049 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:36,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:36,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:30:36,049 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:36,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:36,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1291780610, now seen corresponding path program 1 times [2020-12-01 15:30:36,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:36,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970936099] [2020-12-01 15:30:36,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:36,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:30:36,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970936099] [2020-12-01 15:30:36,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:36,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:30:36,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800898326] [2020-12-01 15:30:36,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:30:36,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:36,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:30:36,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:30:36,138 INFO L87 Difference]: Start difference. First operand 221 states and 569 transitions. Second operand 5 states. [2020-12-01 15:30:36,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:36,186 INFO L93 Difference]: Finished difference Result 271 states and 687 transitions. [2020-12-01 15:30:36,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:30:36,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-01 15:30:36,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:36,188 INFO L225 Difference]: With dead ends: 271 [2020-12-01 15:30:36,188 INFO L226 Difference]: Without dead ends: 147 [2020-12-01 15:30:36,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:30:36,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-12-01 15:30:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2020-12-01 15:30:36,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-12-01 15:30:36,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 356 transitions. [2020-12-01 15:30:36,196 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 356 transitions. Word has length 13 [2020-12-01 15:30:36,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:36,196 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 356 transitions. [2020-12-01 15:30:36,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:30:36,196 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 356 transitions. [2020-12-01 15:30:36,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 15:30:36,197 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:36,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:36,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 15:30:36,198 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:36,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:36,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1988159974, now seen corresponding path program 1 times [2020-12-01 15:30:36,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:36,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106687310] [2020-12-01 15:30:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:36,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:30:36,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106687310] [2020-12-01 15:30:36,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:36,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:30:36,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627010404] [2020-12-01 15:30:36,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:30:36,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:36,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:30:36,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:30:36,285 INFO L87 Difference]: Start difference. First operand 146 states and 356 transitions. Second operand 5 states. [2020-12-01 15:30:36,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:36,335 INFO L93 Difference]: Finished difference Result 198 states and 470 transitions. [2020-12-01 15:30:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:30:36,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-01 15:30:36,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:36,340 INFO L225 Difference]: With dead ends: 198 [2020-12-01 15:30:36,340 INFO L226 Difference]: Without dead ends: 90 [2020-12-01 15:30:36,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:30:36,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-12-01 15:30:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-12-01 15:30:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-01 15:30:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 194 transitions. [2020-12-01 15:30:36,345 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 194 transitions. Word has length 14 [2020-12-01 15:30:36,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:36,345 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 194 transitions. [2020-12-01 15:30:36,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:30:36,346 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 194 transitions. [2020-12-01 15:30:36,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 15:30:36,346 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:30:36,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:30:36,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 15:30:36,347 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:30:36,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:30:36,347 INFO L82 PathProgramCache]: Analyzing trace with hash 255451346, now seen corresponding path program 1 times [2020-12-01 15:30:36,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:30:36,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41579216] [2020-12-01 15:30:36,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:30:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:30:36,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:30:36,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41579216] [2020-12-01 15:30:36,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:30:36,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:30:36,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814587829] [2020-12-01 15:30:36,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:30:36,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:30:36,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:30:36,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:30:36,443 INFO L87 Difference]: Start difference. First operand 90 states and 194 transitions. Second operand 5 states. [2020-12-01 15:30:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:30:36,474 INFO L93 Difference]: Finished difference Result 82 states and 174 transitions. [2020-12-01 15:30:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:30:36,474 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-01 15:30:36,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:30:36,475 INFO L225 Difference]: With dead ends: 82 [2020-12-01 15:30:36,475 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:30:36,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:30:36,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:30:36,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:30:36,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:30:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:30:36,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-01 15:30:36,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:30:36,476 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:30:36,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:30:36,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:30:36,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:30:36,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 15:30:36,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:30:36 BasicIcfg [2020-12-01 15:30:36,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:30:36,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:30:36,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:30:36,481 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:30:36,481 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:30:29" (3/4) ... [2020-12-01 15:30:36,484 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:30:36,490 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-01 15:30:36,491 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-01 15:30:36,491 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-01 15:30:36,498 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-01 15:30:36,498 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:30:36,499 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:30:36,499 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:30:36,554 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_50241260-176c-44c8-9d08-3b98de545672/bin/uautomizer/witness.graphml [2020-12-01 15:30:36,554 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:30:36,555 INFO L168 Benchmark]: Toolchain (without parser) took 7867.48 ms. Allocated memory was 98.6 MB in the beginning and 174.1 MB in the end (delta: 75.5 MB). Free memory was 75.2 MB in the beginning and 133.4 MB in the end (delta: -58.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:30:36,555 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 76.8 MB in the beginning and 76.7 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:30:36,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.50 ms. Allocated memory is still 98.6 MB. Free memory was 74.9 MB in the beginning and 44.0 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:30:36,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.48 ms. Allocated memory is still 98.6 MB. Free memory was 44.0 MB in the beginning and 42.2 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:30:36,556 INFO L168 Benchmark]: Boogie Preprocessor took 45.39 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 42.2 MB in the beginning and 96.0 MB in the end (delta: -53.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:30:36,556 INFO L168 Benchmark]: RCFGBuilder took 506.74 ms. Allocated memory is still 119.5 MB. Free memory was 95.9 MB in the beginning and 76.5 MB in the end (delta: 19.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:30:36,557 INFO L168 Benchmark]: TraceAbstraction took 6565.80 ms. Allocated memory was 119.5 MB in the beginning and 174.1 MB in the end (delta: 54.5 MB). Free memory was 75.9 MB in the beginning and 136.5 MB in the end (delta: -60.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:30:36,557 INFO L168 Benchmark]: Witness Printer took 73.20 ms. Allocated memory is still 174.1 MB. Free memory was 136.5 MB in the beginning and 133.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:30:36,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 76.8 MB in the beginning and 76.7 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 614.50 ms. Allocated memory is still 98.6 MB. Free memory was 74.9 MB in the beginning and 44.0 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.48 ms. Allocated memory is still 98.6 MB. Free memory was 44.0 MB in the beginning and 42.2 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.39 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 42.2 MB in the beginning and 96.0 MB in the end (delta: -53.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 506.74 ms. Allocated memory is still 119.5 MB. Free memory was 95.9 MB in the beginning and 76.5 MB in the end (delta: 19.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6565.80 ms. Allocated memory was 119.5 MB in the beginning and 174.1 MB in the end (delta: 54.5 MB). Free memory was 75.9 MB in the beginning and 136.5 MB in the end (delta: -60.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 73.20 ms. Allocated memory is still 174.1 MB. Free memory was 136.5 MB in the beginning and 133.4 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 961 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 68 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.5s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 205 SDtfs, 183 SDslu, 295 SDs, 0 SdLazy, 100 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 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, 9 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 3769 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...