./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/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 d7b99eb0691db756f3c08dc52ba10dd69081a5de ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:57:50,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:50,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:50,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:50,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:50,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:50,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:50,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:50,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:50,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:50,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:50,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:50,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:50,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:50,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:50,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:50,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:50,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:50,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:50,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:50,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:50,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:50,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:50,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:50,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:50,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:50,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:50,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:50,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:50,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:50,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:50,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:50,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:50,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:50,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:50,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:50,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:50,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:50,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:50,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:50,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:50,199 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:57:50,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:50,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:50,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:50,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:50,249 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:50,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:50,249 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:57:50,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:50,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:57:50,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:50,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:57:50,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:57:50,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:57:50,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:57:50,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:50,252 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:50,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:57:50,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:50,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:50,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:57:50,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:57:50,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:57:50,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:50,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:57:50,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:57:50,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:50,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:57:50,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:57:50,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:50,255 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_c2560b69-0c68-4424-ab56-29c98c1a1d31/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b99eb0691db756f3c08dc52ba10dd69081a5de [2020-11-28 02:57:50,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:50,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:50,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:50,581 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:50,582 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:50,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe010_tso.opt.i [2020-11-28 02:57:50,687 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer/data/f7e5ece5f/1b3242f187774fa9a070194f9ea7767a/FLAGd08687995 [2020-11-28 02:57:51,347 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:51,348 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/sv-benchmarks/c/pthread-wmm/safe010_tso.opt.i [2020-11-28 02:57:51,362 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer/data/f7e5ece5f/1b3242f187774fa9a070194f9ea7767a/FLAGd08687995 [2020-11-28 02:57:51,598 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer/data/f7e5ece5f/1b3242f187774fa9a070194f9ea7767a [2020-11-28 02:57:51,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:51,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:51,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:51,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:51,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:51,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@724a375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51, skipping insertion in model container [2020-11-28 02:57:51,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:51,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:52,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:52,097 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:52,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:52,278 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:52,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52 WrapperNode [2020-11-28 02:57:52,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:52,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:52,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:52,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:52,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52" (1/1) ... [2020-11-28 02:57:52,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52" (1/1) ... [2020-11-28 02:57:52,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:52,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:52,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:52,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:52,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52" (1/1) ... [2020-11-28 02:57:52,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52" (1/1) ... [2020-11-28 02:57:52,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52" (1/1) ... [2020-11-28 02:57:52,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52" (1/1) ... [2020-11-28 02:57:52,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52" (1/1) ... [2020-11-28 02:57:52,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52" (1/1) ... [2020-11-28 02:57:52,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52" (1/1) ... [2020-11-28 02:57:52,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:52,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:52,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:52,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:52,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/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 [2020-11-28 02:57:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:57:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-28 02:57:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:57:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:57:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-28 02:57:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-28 02:57:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-28 02:57:52,493 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-28 02:57:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:57:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-28 02:57:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:52,496 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-28 02:57:52,960 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:52,960 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 02:57:52,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52 BoogieIcfgContainer [2020-11-28 02:57:52,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:52,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:57:52,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:57:52,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:57:52,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:57:51" (1/3) ... [2020-11-28 02:57:52,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45207a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:52, skipping insertion in model container [2020-11-28 02:57:52,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:52" (2/3) ... [2020-11-28 02:57:52,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45207a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:52, skipping insertion in model container [2020-11-28 02:57:52,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52" (3/3) ... [2020-11-28 02:57:52,972 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.opt.i [2020-11-28 02:57:52,984 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-28 02:57:52,985 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:57:52,990 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:57:52,991 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-28 02:57:53,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,020 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,020 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,020 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,021 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,021 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,022 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,022 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,022 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,023 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,027 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,027 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,042 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,042 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,043 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 02:57:53,049 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-28 02:57:53,062 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 02:57:53,084 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:57:53,085 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:57:53,085 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:57:53,085 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:53,085 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:53,085 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:57:53,086 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:53,086 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:57:53,096 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-28 02:57:53,099 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 64 transitions, 138 flow [2020-11-28 02:57:53,101 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 64 transitions, 138 flow [2020-11-28 02:57:53,103 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 138 flow [2020-11-28 02:57:53,141 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2020-11-28 02:57:53,142 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-28 02:57:53,145 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-11-28 02:57:53,147 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-28 02:57:53,421 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-28 02:57:53,536 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-28 02:57:54,869 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-28 02:57:55,542 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-11-28 02:57:55,850 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-28 02:57:55,969 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-28 02:57:56,117 INFO L131 LiptonReduction]: Checked pairs total: 1636 [2020-11-28 02:57:56,118 INFO L133 LiptonReduction]: Total number of compositions: 67 [2020-11-28 02:57:56,123 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-11-28 02:57:56,138 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-11-28 02:57:56,140 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-28 02:57:56,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 02:57:56,146 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:56,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 02:57:56,152 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:56,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:56,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1312316534, now seen corresponding path program 1 times [2020-11-28 02:57:56,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:56,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125464998] [2020-11-28 02:57:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:56,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:56,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125464998] [2020-11-28 02:57:56,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:56,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 02:57:56,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610007346] [2020-11-28 02:57:56,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:56,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:56,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:56,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:56,469 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-11-28 02:57:56,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:56,523 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-11-28 02:57:56,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:56,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 02:57:56,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:56,541 INFO L225 Difference]: With dead ends: 72 [2020-11-28 02:57:56,542 INFO L226 Difference]: Without dead ends: 56 [2020-11-28 02:57:56,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:56,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-28 02:57:56,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-11-28 02:57:56,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-28 02:57:56,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-11-28 02:57:56,609 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-11-28 02:57:56,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:56,610 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-11-28 02:57:56,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:56,610 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-11-28 02:57:56,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 02:57:56,611 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:56,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:56,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:57:56,612 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:56,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:56,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2038978314, now seen corresponding path program 1 times [2020-11-28 02:57:56,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:56,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872446292] [2020-11-28 02:57:56,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:56,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:56,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872446292] [2020-11-28 02:57:56,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:56,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 02:57:56,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426970659] [2020-11-28 02:57:56,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:56,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:56,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:56,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:56,760 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 3 states. [2020-11-28 02:57:56,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:56,768 INFO L93 Difference]: Finished difference Result 53 states and 106 transitions. [2020-11-28 02:57:56,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:56,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-28 02:57:56,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:56,770 INFO L225 Difference]: With dead ends: 53 [2020-11-28 02:57:56,770 INFO L226 Difference]: Without dead ends: 53 [2020-11-28 02:57:56,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:56,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-28 02:57:56,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-28 02:57:56,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-28 02:57:56,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 106 transitions. [2020-11-28 02:57:56,781 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 106 transitions. Word has length 7 [2020-11-28 02:57:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:56,781 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 106 transitions. [2020-11-28 02:57:56,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 106 transitions. [2020-11-28 02:57:56,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 02:57:56,783 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:56,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:56,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:57:56,783 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:56,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:56,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1216180213, now seen corresponding path program 1 times [2020-11-28 02:57:56,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:56,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933076513] [2020-11-28 02:57:56,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:56,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933076513] [2020-11-28 02:57:56,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:56,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:56,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897506154] [2020-11-28 02:57:56,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:57:56,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:56,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:56,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:56,859 INFO L87 Difference]: Start difference. First operand 53 states and 106 transitions. Second operand 4 states. [2020-11-28 02:57:56,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:56,884 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-11-28 02:57:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:57:56,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-28 02:57:56,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:56,887 INFO L225 Difference]: With dead ends: 60 [2020-11-28 02:57:56,887 INFO L226 Difference]: Without dead ends: 36 [2020-11-28 02:57:56,888 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 [2020-11-28 02:57:56,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-28 02:57:56,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-28 02:57:56,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-28 02:57:56,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-11-28 02:57:56,893 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2020-11-28 02:57:56,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:56,893 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-11-28 02:57:56,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:57:56,894 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-11-28 02:57:56,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 02:57:56,894 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:56,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:56,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:57:56,895 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:56,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:56,895 INFO L82 PathProgramCache]: Analyzing trace with hash -953134969, now seen corresponding path program 1 times [2020-11-28 02:57:56,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:56,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359382228] [2020-11-28 02:57:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:56,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359382228] [2020-11-28 02:57:56,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:56,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:56,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775723855] [2020-11-28 02:57:56,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:57:56,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:56,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:57:56,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:57:56,988 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-11-28 02:57:57,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:57,023 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-11-28 02:57:57,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:57:57,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-28 02:57:57,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:57,025 INFO L225 Difference]: With dead ends: 39 [2020-11-28 02:57:57,026 INFO L226 Difference]: Without dead ends: 29 [2020-11-28 02:57:57,026 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 [2020-11-28 02:57:57,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-28 02:57:57,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-28 02:57:57,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-28 02:57:57,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-11-28 02:57:57,031 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 9 [2020-11-28 02:57:57,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:57,031 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-11-28 02:57:57,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:57:57,031 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-11-28 02:57:57,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 02:57:57,032 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:57,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:57,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:57:57,033 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:57,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:57,042 INFO L82 PathProgramCache]: Analyzing trace with hash 466385382, now seen corresponding path program 1 times [2020-11-28 02:57:57,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:57,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565764697] [2020-11-28 02:57:57,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:57,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565764697] [2020-11-28 02:57:57,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:57,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:57:57,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709556772] [2020-11-28 02:57:57,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:57:57,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:57,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:57:57,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:57:57,132 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 5 states. [2020-11-28 02:57:57,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:57,188 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2020-11-28 02:57:57,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:57:57,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-28 02:57:57,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:57,194 INFO L225 Difference]: With dead ends: 27 [2020-11-28 02:57:57,194 INFO L226 Difference]: Without dead ends: 22 [2020-11-28 02:57:57,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:57:57,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-28 02:57:57,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-28 02:57:57,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 02:57:57,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-11-28 02:57:57,198 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 10 [2020-11-28 02:57:57,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:57,198 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-11-28 02:57:57,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:57:57,198 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-11-28 02:57:57,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 02:57:57,199 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:57,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:57,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:57:57,199 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:57:57,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:57,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1480685439, now seen corresponding path program 1 times [2020-11-28 02:57:57,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:57,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222654937] [2020-11-28 02:57:57,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:57,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:57,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222654937] [2020-11-28 02:57:57,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:57,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:57:57,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079671857] [2020-11-28 02:57:57,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:57,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:57:57,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:57,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:57,272 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-11-28 02:57:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:57,281 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-11-28 02:57:57,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:57,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-28 02:57:57,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:57,285 INFO L225 Difference]: With dead ends: 21 [2020-11-28 02:57:57,285 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:57:57,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:57,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:57:57,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:57:57,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:57:57,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:57:57,286 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-28 02:57:57,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:57,286 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:57:57,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:57,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:57:57,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:57:57,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 02:57:57,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:57:57 BasicIcfg [2020-11-28 02:57:57,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:57:57,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:57:57,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:57:57,292 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:57:57,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:52" (3/4) ... [2020-11-28 02:57:57,295 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:57:57,301 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-28 02:57:57,301 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-28 02:57:57,306 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 02:57:57,306 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 02:57:57,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:57:57,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:57:57,363 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c2560b69-0c68-4424-ab56-29c98c1a1d31/bin/uautomizer/witness.graphml [2020-11-28 02:57:57,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:57:57,365 INFO L168 Benchmark]: Toolchain (without parser) took 5759.02 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 67.3 MB in the beginning and 91.4 MB in the end (delta: -24.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:57,366 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory is still 53.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:57,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.62 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 67.0 MB in the beginning and 74.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:57,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.57 ms. Allocated memory is still 117.4 MB. Free memory was 74.2 MB in the beginning and 72.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:57,367 INFO L168 Benchmark]: Boogie Preprocessor took 58.75 ms. Allocated memory is still 117.4 MB. Free memory was 72.1 MB in the beginning and 71.2 MB in the end (delta: 975.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:57,368 INFO L168 Benchmark]: RCFGBuilder took 566.58 ms. Allocated memory is still 117.4 MB. Free memory was 71.2 MB in the beginning and 89.8 MB in the end (delta: -18.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:57,368 INFO L168 Benchmark]: TraceAbstraction took 4326.72 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 89.0 MB in the beginning and 94.5 MB in the end (delta: -5.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:57,369 INFO L168 Benchmark]: Witness Printer took 71.74 ms. Allocated memory is still 142.6 MB. Free memory was 94.5 MB in the beginning and 91.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:57,371 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 96.5 MB. Free memory is still 53.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 668.62 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 67.0 MB in the beginning and 74.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.57 ms. Allocated memory is still 117.4 MB. Free memory was 74.2 MB in the beginning and 72.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.75 ms. Allocated memory is still 117.4 MB. Free memory was 72.1 MB in the beginning and 71.2 MB in the end (delta: 975.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 566.58 ms. Allocated memory is still 117.4 MB. Free memory was 71.2 MB in the beginning and 89.8 MB in the end (delta: -18.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4326.72 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 89.0 MB in the beginning and 94.5 MB in the end (delta: -5.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * Witness Printer took 71.74 ms. Allocated memory is still 142.6 MB. Free memory was 94.5 MB in the beginning and 91.4 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 538 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 5 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 32 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.0s, 68 PlacesBefore, 22 PlacesAfterwards, 64 TransitionsBefore, 15 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 1636 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 3 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 71 SDtfs, 43 SDslu, 61 SDs, 0 SdLazy, 47 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 1120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...