./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_pso.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_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/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 f43935362c1335f4f9734ddabaed6e8642550761 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:21:32,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:21:32,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:21:32,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:21:32,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:21:32,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:21:32,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:21:32,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:21:32,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:21:32,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:21:32,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:21:32,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:21:32,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:21:32,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:21:32,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:21:32,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:21:32,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:21:32,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:21:32,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:21:32,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:21:32,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:21:32,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:21:32,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:21:32,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:21:32,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:21:32,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:21:32,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:21:32,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:21:32,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:21:32,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:21:32,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:21:32,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:21:32,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:21:32,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:21:32,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:21:32,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:21:32,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:21:32,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:21:32,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:21:32,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:21:32,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:21:32,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:21:32,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:21:32,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:21:32,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:21:32,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:21:32,277 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:21:32,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:21:32,278 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:21:32,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:21:32,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:21:32,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:21:32,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:21:32,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:21:32,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:21:32,280 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:21:32,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:21:32,281 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:21:32,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:21:32,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:21:32,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:21:32,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:21:32,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:21:32,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:21:32,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:21:32,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:21:32,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:21:32,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:21:32,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:21:32,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:21:32,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:21:32,285 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_96d22e59-afad-4adf-80dc-9676e41e073a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f43935362c1335f4f9734ddabaed6e8642550761 [2020-11-29 20:21:32,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:21:32,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:21:32,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:21:32,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:21:32,667 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:21:32,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe019_pso.opt.i [2020-11-29 20:21:32,731 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer/data/118c1383b/b81c058cc31c4218a06e7a74618158d2/FLAG80e703a45 [2020-11-29 20:21:33,344 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:21:33,345 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/sv-benchmarks/c/pthread-wmm/safe019_pso.opt.i [2020-11-29 20:21:33,376 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer/data/118c1383b/b81c058cc31c4218a06e7a74618158d2/FLAG80e703a45 [2020-11-29 20:21:33,608 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer/data/118c1383b/b81c058cc31c4218a06e7a74618158d2 [2020-11-29 20:21:33,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:21:33,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:21:33,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:21:33,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:21:33,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:21:33,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:21:33" (1/1) ... [2020-11-29 20:21:33,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b4366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:33, skipping insertion in model container [2020-11-29 20:21:33,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:21:33" (1/1) ... [2020-11-29 20:21:33,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:21:33,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:21:34,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:21:34,062 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:21:34,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:21:34,187 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:21:34,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34 WrapperNode [2020-11-29 20:21:34,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:21:34,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:21:34,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:21:34,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:21:34,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34" (1/1) ... [2020-11-29 20:21:34,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34" (1/1) ... [2020-11-29 20:21:34,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:21:34,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:21:34,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:21:34,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:21:34,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34" (1/1) ... [2020-11-29 20:21:34,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34" (1/1) ... [2020-11-29 20:21:34,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34" (1/1) ... [2020-11-29 20:21:34,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34" (1/1) ... [2020-11-29 20:21:34,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34" (1/1) ... [2020-11-29 20:21:34,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34" (1/1) ... [2020-11-29 20:21:34,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34" (1/1) ... [2020-11-29 20:21:34,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:21:34,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:21:34,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:21:34,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:21:34,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/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 [2020-11-29 20:21:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:21:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-29 20:21:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:21:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:21:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-29 20:21:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-29 20:21:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-29 20:21:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-29 20:21:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-29 20:21:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-29 20:21:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-29 20:21:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-29 20:21:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:21:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-29 20:21:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:21:34,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:21:34,357 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-29 20:21:34,915 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:21:34,916 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-29 20:21:34,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:21:34 BoogieIcfgContainer [2020-11-29 20:21:34,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:21:34,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:21:34,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:21:34,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:21:34,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:21:33" (1/3) ... [2020-11-29 20:21:34,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57dd441c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:21:34, skipping insertion in model container [2020-11-29 20:21:34,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:21:34" (2/3) ... [2020-11-29 20:21:34,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57dd441c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:21:34, skipping insertion in model container [2020-11-29 20:21:34,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:21:34" (3/3) ... [2020-11-29 20:21:34,931 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2020-11-29 20:21:34,945 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-29 20:21:34,945 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:21:34,953 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:21:34,954 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-29 20:21:34,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,987 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,987 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,989 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,989 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,991 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,991 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,992 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,992 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,992 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,993 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,993 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,993 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,996 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,997 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:34,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,003 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,003 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,003 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,004 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,008 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,009 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,021 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,021 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-29 20:21:35,023 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-29 20:21:35,037 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-29 20:21:35,061 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:21:35,061 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:21:35,061 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:21:35,061 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:21:35,062 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:21:35,062 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:21:35,062 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:21:35,062 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:21:35,077 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-29 20:21:35,080 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-29 20:21:35,083 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-29 20:21:35,086 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-11-29 20:21:35,188 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-11-29 20:21:35,189 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-29 20:21:35,194 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 3/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-29 20:21:35,202 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-29 20:21:37,350 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-29 20:21:38,175 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-29 20:21:38,544 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-29 20:21:38,700 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-11-29 20:21:38,700 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-11-29 20:21:38,706 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-29 20:21:38,761 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-29 20:21:38,763 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-29 20:21:38,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:21:38,773 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:38,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:38,774 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:38,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:38,781 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-11-29 20:21:38,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:38,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960197728] [2020-11-29 20:21:38,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:39,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:39,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960197728] [2020-11-29 20:21:39,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:39,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 20:21:39,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046431560] [2020-11-29 20:21:39,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:39,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:39,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:39,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:39,067 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-29 20:21:39,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:39,137 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-29 20:21:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:39,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-29 20:21:39,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:39,172 INFO L225 Difference]: With dead ends: 670 [2020-11-29 20:21:39,172 INFO L226 Difference]: Without dead ends: 526 [2020-11-29 20:21:39,173 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 [2020-11-29 20:21:39,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-29 20:21:39,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-29 20:21:39,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-29 20:21:39,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-29 20:21:39,298 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-29 20:21:39,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:39,300 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-29 20:21:39,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:39,300 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-29 20:21:39,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 20:21:39,303 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:39,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:39,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:21:39,304 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:39,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:39,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1548819894, now seen corresponding path program 1 times [2020-11-29 20:21:39,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:39,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995013608] [2020-11-29 20:21:39,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:39,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995013608] [2020-11-29 20:21:39,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:39,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:21:39,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852598777] [2020-11-29 20:21:39,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:39,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:39,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:39,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:39,442 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-29 20:21:39,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:39,495 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-11-29 20:21:39,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:21:39,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-29 20:21:39,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:39,502 INFO L225 Difference]: With dead ends: 724 [2020-11-29 20:21:39,502 INFO L226 Difference]: Without dead ends: 412 [2020-11-29 20:21:39,503 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 [2020-11-29 20:21:39,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-29 20:21:39,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-11-29 20:21:39,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-11-29 20:21:39,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-11-29 20:21:39,536 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-11-29 20:21:39,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:39,536 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-11-29 20:21:39,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:39,536 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-11-29 20:21:39,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 20:21:39,539 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:39,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:39,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:21:39,539 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:39,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:39,540 INFO L82 PathProgramCache]: Analyzing trace with hash -295858392, now seen corresponding path program 1 times [2020-11-29 20:21:39,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:39,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235577586] [2020-11-29 20:21:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:39,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235577586] [2020-11-29 20:21:39,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:39,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 20:21:39,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126184271] [2020-11-29 20:21:39,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:21:39,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:39,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:21:39,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:21:39,604 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-11-29 20:21:39,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:39,614 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-11-29 20:21:39,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:21:39,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-29 20:21:39,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:39,619 INFO L225 Difference]: With dead ends: 394 [2020-11-29 20:21:39,619 INFO L226 Difference]: Without dead ends: 394 [2020-11-29 20:21:39,620 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 [2020-11-29 20:21:39,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-11-29 20:21:39,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-11-29 20:21:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-11-29 20:21:39,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-11-29 20:21:39,657 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-11-29 20:21:39,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:39,657 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-11-29 20:21:39,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:21:39,658 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-11-29 20:21:39,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 20:21:39,660 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:39,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:39,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:21:39,661 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:39,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:39,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1042420885, now seen corresponding path program 1 times [2020-11-29 20:21:39,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:39,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827934028] [2020-11-29 20:21:39,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:39,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:39,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827934028] [2020-11-29 20:21:39,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:39,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:21:39,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028223116] [2020-11-29 20:21:39,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:39,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:39,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:39,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:39,848 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-11-29 20:21:39,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:39,903 INFO L93 Difference]: Finished difference Result 538 states and 1654 transitions. [2020-11-29 20:21:39,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:21:39,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-29 20:21:39,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:39,908 INFO L225 Difference]: With dead ends: 538 [2020-11-29 20:21:39,908 INFO L226 Difference]: Without dead ends: 286 [2020-11-29 20:21:39,909 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 [2020-11-29 20:21:39,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-11-29 20:21:39,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-11-29 20:21:39,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-11-29 20:21:39,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-11-29 20:21:39,956 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 13 [2020-11-29 20:21:39,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:39,957 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-11-29 20:21:39,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:39,957 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-11-29 20:21:39,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 20:21:39,969 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:39,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:39,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:21:39,976 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:39,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:39,977 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 1 times [2020-11-29 20:21:39,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:39,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208956837] [2020-11-29 20:21:39,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:40,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208956837] [2020-11-29 20:21:40,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:40,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:21:40,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390638620] [2020-11-29 20:21:40,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:40,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:40,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:40,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:40,128 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 4 states. [2020-11-29 20:21:40,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:40,188 INFO L93 Difference]: Finished difference Result 355 states and 990 transitions. [2020-11-29 20:21:40,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:21:40,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-29 20:21:40,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:40,194 INFO L225 Difference]: With dead ends: 355 [2020-11-29 20:21:40,195 INFO L226 Difference]: Without dead ends: 262 [2020-11-29 20:21:40,195 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 [2020-11-29 20:21:40,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-11-29 20:21:40,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-11-29 20:21:40,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-11-29 20:21:40,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 738 transitions. [2020-11-29 20:21:40,208 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 738 transitions. Word has length 14 [2020-11-29 20:21:40,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:40,208 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 738 transitions. [2020-11-29 20:21:40,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:40,209 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 738 transitions. [2020-11-29 20:21:40,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:21:40,211 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:40,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:40,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:21:40,211 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:40,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:40,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1456913458, now seen corresponding path program 1 times [2020-11-29 20:21:40,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:40,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388728156] [2020-11-29 20:21:40,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:40,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:40,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388728156] [2020-11-29 20:21:40,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:40,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:40,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525760813] [2020-11-29 20:21:40,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:21:40,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:40,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:21:40,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:21:40,335 INFO L87 Difference]: Start difference. First operand 262 states and 738 transitions. Second operand 5 states. [2020-11-29 20:21:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:40,425 INFO L93 Difference]: Finished difference Result 283 states and 734 transitions. [2020-11-29 20:21:40,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:21:40,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-29 20:21:40,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:40,428 INFO L225 Difference]: With dead ends: 283 [2020-11-29 20:21:40,428 INFO L226 Difference]: Without dead ends: 208 [2020-11-29 20:21:40,428 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 [2020-11-29 20:21:40,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-11-29 20:21:40,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-11-29 20:21:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-11-29 20:21:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-11-29 20:21:40,439 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 15 [2020-11-29 20:21:40,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:40,439 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-11-29 20:21:40,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:21:40,440 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-11-29 20:21:40,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 20:21:40,441 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:40,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:40,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:21:40,443 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:40,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:40,447 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-11-29 20:21:40,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:40,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343134723] [2020-11-29 20:21:40,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:40,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343134723] [2020-11-29 20:21:40,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:40,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:21:40,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682196458] [2020-11-29 20:21:40,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:21:40,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:40,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:21:40,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:21:40,572 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 6 states. [2020-11-29 20:21:40,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:40,663 INFO L93 Difference]: Finished difference Result 201 states and 486 transitions. [2020-11-29 20:21:40,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 20:21:40,665 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-29 20:21:40,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:40,667 INFO L225 Difference]: With dead ends: 201 [2020-11-29 20:21:40,667 INFO L226 Difference]: Without dead ends: 163 [2020-11-29 20:21:40,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:21:40,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-11-29 20:21:40,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-11-29 20:21:40,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-29 20:21:40,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 394 transitions. [2020-11-29 20:21:40,679 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 394 transitions. Word has length 16 [2020-11-29 20:21:40,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:40,680 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 394 transitions. [2020-11-29 20:21:40,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:21:40,680 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 394 transitions. [2020-11-29 20:21:40,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 20:21:40,681 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:40,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:40,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 20:21:40,682 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:40,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:40,683 INFO L82 PathProgramCache]: Analyzing trace with hash -999056211, now seen corresponding path program 1 times [2020-11-29 20:21:40,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:40,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530281140] [2020-11-29 20:21:40,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:40,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:40,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530281140] [2020-11-29 20:21:40,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:40,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:40,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530539954] [2020-11-29 20:21:40,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:40,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:40,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:40,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:40,764 INFO L87 Difference]: Start difference. First operand 163 states and 394 transitions. Second operand 4 states. [2020-11-29 20:21:40,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:40,803 INFO L93 Difference]: Finished difference Result 263 states and 604 transitions. [2020-11-29 20:21:40,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:21:40,804 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-29 20:21:40,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:40,805 INFO L225 Difference]: With dead ends: 263 [2020-11-29 20:21:40,806 INFO L226 Difference]: Without dead ends: 127 [2020-11-29 20:21:40,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:21:40,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-29 20:21:40,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-11-29 20:21:40,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-29 20:21:40,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-11-29 20:21:40,816 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-11-29 20:21:40,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:40,818 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-11-29 20:21:40,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:40,818 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-11-29 20:21:40,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 20:21:40,819 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:40,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:40,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 20:21:40,820 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:40,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:40,821 INFO L82 PathProgramCache]: Analyzing trace with hash 833653032, now seen corresponding path program 1 times [2020-11-29 20:21:40,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:40,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328680625] [2020-11-29 20:21:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:40,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328680625] [2020-11-29 20:21:40,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:40,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:21:40,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282862007] [2020-11-29 20:21:40,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:21:40,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:40,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:21:40,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:21:40,885 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 4 states. [2020-11-29 20:21:40,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:40,911 INFO L93 Difference]: Finished difference Result 142 states and 293 transitions. [2020-11-29 20:21:40,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:21:40,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-29 20:21:40,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:40,913 INFO L225 Difference]: With dead ends: 142 [2020-11-29 20:21:40,913 INFO L226 Difference]: Without dead ends: 87 [2020-11-29 20:21:40,914 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 [2020-11-29 20:21:40,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-29 20:21:40,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2020-11-29 20:21:40,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-29 20:21:40,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 160 transitions. [2020-11-29 20:21:40,918 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 160 transitions. Word has length 18 [2020-11-29 20:21:40,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:40,919 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 160 transitions. [2020-11-29 20:21:40,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:21:40,919 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 160 transitions. [2020-11-29 20:21:40,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 20:21:40,920 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:21:40,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:21:40,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 20:21:40,920 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:21:40,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:21:40,921 INFO L82 PathProgramCache]: Analyzing trace with hash 721666079, now seen corresponding path program 2 times [2020-11-29 20:21:40,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:21:40,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471975975] [2020-11-29 20:21:40,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:21:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:21:41,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:21:41,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471975975] [2020-11-29 20:21:41,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:21:41,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:21:41,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100971358] [2020-11-29 20:21:41,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 20:21:41,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:21:41,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 20:21:41,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:21:41,069 INFO L87 Difference]: Start difference. First operand 86 states and 160 transitions. Second operand 7 states. [2020-11-29 20:21:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:21:41,143 INFO L93 Difference]: Finished difference Result 81 states and 154 transitions. [2020-11-29 20:21:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 20:21:41,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-29 20:21:41,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:21:41,144 INFO L225 Difference]: With dead ends: 81 [2020-11-29 20:21:41,144 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:21:41,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:21:41,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:21:41,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:21:41,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:21:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:21:41,145 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-29 20:21:41,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:21:41,145 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:21:41,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 20:21:41,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:21:41,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:21:41,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 20:21:41,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:21:41 BasicIcfg [2020-11-29 20:21:41,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:21:41,150 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:21:41,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:21:41,151 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:21:41,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:21:34" (3/4) ... [2020-11-29 20:21:41,155 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:21:41,163 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-29 20:21:41,163 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-29 20:21:41,163 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-11-29 20:21:41,164 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-11-29 20:21:41,169 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-11-29 20:21:41,170 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:21:41,170 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:21:41,171 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:21:41,219 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_96d22e59-afad-4adf-80dc-9676e41e073a/bin/uautomizer/witness.graphml [2020-11-29 20:21:41,220 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:21:41,221 INFO L168 Benchmark]: Toolchain (without parser) took 7609.33 ms. Allocated memory was 100.7 MB in the beginning and 195.0 MB in the end (delta: 94.4 MB). Free memory was 71.7 MB in the beginning and 152.8 MB in the end (delta: -81.0 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:41,222 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:21:41,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.11 ms. Allocated memory is still 100.7 MB. Free memory was 71.5 MB in the beginning and 56.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:41,224 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.52 ms. Allocated memory is still 100.7 MB. Free memory was 56.2 MB in the beginning and 54.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:41,224 INFO L168 Benchmark]: Boogie Preprocessor took 29.11 ms. Allocated memory is still 100.7 MB. Free memory was 54.1 MB in the beginning and 52.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:41,225 INFO L168 Benchmark]: RCFGBuilder took 644.65 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 52.8 MB in the beginning and 81.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:41,226 INFO L168 Benchmark]: TraceAbstraction took 6228.03 ms. Allocated memory was 121.6 MB in the beginning and 195.0 MB in the end (delta: 73.4 MB). Free memory was 81.7 MB in the beginning and 155.9 MB in the end (delta: -74.2 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:41,227 INFO L168 Benchmark]: Witness Printer took 69.43 ms. Allocated memory is still 195.0 MB. Free memory was 155.9 MB in the beginning and 152.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:21:41,231 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 100.7 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 575.11 ms. Allocated memory is still 100.7 MB. Free memory was 71.5 MB in the beginning and 56.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.52 ms. Allocated memory is still 100.7 MB. Free memory was 56.2 MB in the beginning and 54.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.11 ms. Allocated memory is still 100.7 MB. Free memory was 54.1 MB in the beginning and 52.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 644.65 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 52.8 MB in the beginning and 81.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6228.03 ms. Allocated memory was 121.6 MB in the beginning and 195.0 MB in the end (delta: 73.4 MB). Free memory was 81.7 MB in the beginning and 155.9 MB in the end (delta: -74.2 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. * Witness Printer took 69.43 ms. Allocated memory is still 195.0 MB. Free memory was 155.9 MB in the beginning and 152.8 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 1452 VarBasedMoverChecksPositive, 69 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 53 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 96 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 100 PlacesBefore, 38 PlacesAfterwards, 90 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4371 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 5 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 221 SDtfs, 240 SDslu, 330 SDs, 0 SdLazy, 162 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 5745 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...