./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75b6321658285c0e5c05d59d7bf40c5ba47b7cd7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 22:20:08,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 22:20:08,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 22:20:08,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 22:20:08,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 22:20:08,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 22:20:08,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 22:20:08,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 22:20:08,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 22:20:08,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 22:20:08,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 22:20:08,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 22:20:08,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 22:20:08,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 22:20:08,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 22:20:08,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 22:20:08,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 22:20:08,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 22:20:08,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 22:20:08,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 22:20:08,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 22:20:08,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 22:20:08,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 22:20:08,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 22:20:08,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 22:20:08,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 22:20:08,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 22:20:08,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 22:20:08,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 22:20:08,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 22:20:08,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 22:20:08,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 22:20:08,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 22:20:08,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 22:20:08,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 22:20:08,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 22:20:08,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 22:20:08,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 22:20:08,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 22:20:08,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 22:20:08,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 22:20:08,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 22:20:08,168 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 22:20:08,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 22:20:08,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 22:20:08,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 22:20:08,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 22:20:08,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 22:20:08,172 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 22:20:08,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 22:20:08,172 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 22:20:08,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 22:20:08,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 22:20:08,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 22:20:08,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 22:20:08,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 22:20:08,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 22:20:08,174 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 22:20:08,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 22:20:08,182 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 22:20:08,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 22:20:08,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 22:20:08,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 22:20:08,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 22:20:08,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:20:08,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 22:20:08,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 22:20:08,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 22:20:08,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 22:20:08,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 22:20:08,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 22:20:08,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 22:20:08,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b6321658285c0e5c05d59d7bf40c5ba47b7cd7 [2021-08-29 22:20:08,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 22:20:08,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 22:20:08,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 22:20:08,541 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 22:20:08,542 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 22:20:08,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i [2021-08-29 22:20:08,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93cfac84f/1eb0bc1245774ce6a1d2d607a6bc4567/FLAG328071651 [2021-08-29 22:20:09,121 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 22:20:09,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i [2021-08-29 22:20:09,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93cfac84f/1eb0bc1245774ce6a1d2d607a6bc4567/FLAG328071651 [2021-08-29 22:20:09,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93cfac84f/1eb0bc1245774ce6a1d2d607a6bc4567 [2021-08-29 22:20:09,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 22:20:09,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 22:20:09,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 22:20:09,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 22:20:09,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 22:20:09,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195b3662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09, skipping insertion in model container [2021-08-29 22:20:09,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 22:20:09,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 22:20:09,634 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i[950,963] [2021-08-29 22:20:09,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:20:09,792 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 22:20:09,801 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i[950,963] [2021-08-29 22:20:09,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:20:09,868 INFO L208 MainTranslator]: Completed translation [2021-08-29 22:20:09,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09 WrapperNode [2021-08-29 22:20:09,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 22:20:09,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 22:20:09,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 22:20:09,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 22:20:09,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 22:20:09,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 22:20:09,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 22:20:09,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 22:20:09,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 22:20:09,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 22:20:09,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 22:20:09,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 22:20:09,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09" (1/1) ... [2021-08-29 22:20:09,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:20:09,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 22:20:10,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 22:20:10,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 22:20:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 22:20:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-29 22:20:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 22:20:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 22:20:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-29 22:20:10,056 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-29 22:20:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-29 22:20:10,056 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-29 22:20:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-29 22:20:10,056 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-29 22:20:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 22:20:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-29 22:20:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 22:20:10,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 22:20:10,058 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-29 22:20:10,340 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 22:20:10,341 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-29 22:20:10,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:20:10 BoogieIcfgContainer [2021-08-29 22:20:10,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 22:20:10,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 22:20:10,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 22:20:10,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 22:20:10,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:20:09" (1/3) ... [2021-08-29 22:20:10,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459c031b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:20:10, skipping insertion in model container [2021-08-29 22:20:10,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:20:09" (2/3) ... [2021-08-29 22:20:10,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459c031b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:20:10, skipping insertion in model container [2021-08-29 22:20:10,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:20:10" (3/3) ... [2021-08-29 22:20:10,350 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2021-08-29 22:20:10,356 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-29 22:20:10,356 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 22:20:10,356 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 22:20:10,356 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-29 22:20:10,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,399 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,400 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,400 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,400 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,404 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,404 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,405 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,409 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,410 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,410 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,411 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,411 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,411 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,411 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,417 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,417 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,417 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,417 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,422 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,422 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,424 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,425 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:20:10,427 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-29 22:20:10,475 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 22:20:10,484 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 22:20:10,485 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-29 22:20:10,511 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-08-29 22:20:10,522 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 83 transitions, 181 flow [2021-08-29 22:20:10,525 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 83 transitions, 181 flow [2021-08-29 22:20:10,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 83 transitions, 181 flow [2021-08-29 22:20:10,593 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-08-29 22:20:10,593 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-29 22:20:10,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-08-29 22:20:10,600 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2021-08-29 22:20:12,918 INFO L131 LiptonReduction]: Checked pairs total: 2589 [2021-08-29 22:20:12,918 INFO L133 LiptonReduction]: Total number of compositions: 72 [2021-08-29 22:20:12,925 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2021-08-29 22:20:12,956 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 298 states, 297 states have (on average 3.1245791245791246) internal successors, (928), 297 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:12,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 298 states, 297 states have (on average 3.1245791245791246) internal successors, (928), 297 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:12,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 22:20:12,966 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:12,966 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:12,967 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:12,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:12,971 INFO L82 PathProgramCache]: Analyzing trace with hash 835490119, now seen corresponding path program 1 times [2021-08-29 22:20:12,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:12,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415203594] [2021-08-29 22:20:12,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:12,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:13,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:13,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:13,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415203594] [2021-08-29 22:20:13,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415203594] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:13,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:13,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:20:13,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161510570] [2021-08-29 22:20:13,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 22:20:13,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:13,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 22:20:13,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 22:20:13,178 INFO L87 Difference]: Start difference. First operand has 298 states, 297 states have (on average 3.1245791245791246) internal successors, (928), 297 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:13,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:13,223 INFO L93 Difference]: Finished difference Result 298 states and 864 transitions. [2021-08-29 22:20:13,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 22:20:13,226 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-29 22:20:13,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:13,244 INFO L225 Difference]: With dead ends: 298 [2021-08-29 22:20:13,244 INFO L226 Difference]: Without dead ends: 298 [2021-08-29 22:20:13,245 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 22:20:13,248 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.71ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:13,249 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 6 Unknown, 0 Unchecked, 0.37ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 10.71ms Time] [2021-08-29 22:20:13,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-08-29 22:20:13,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-08-29 22:20:13,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 2.909090909090909) internal successors, (864), 297 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:13,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2021-08-29 22:20:13,301 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2021-08-29 22:20:13,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:13,302 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2021-08-29 22:20:13,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:13,302 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2021-08-29 22:20:13,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-29 22:20:13,303 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:13,303 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:13,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 22:20:13,304 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:13,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:13,305 INFO L82 PathProgramCache]: Analyzing trace with hash 130385759, now seen corresponding path program 1 times [2021-08-29 22:20:13,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:13,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002169655] [2021-08-29 22:20:13,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:13,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:13,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:13,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002169655] [2021-08-29 22:20:13,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002169655] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:13,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:13,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:20:13,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529423712] [2021-08-29 22:20:13,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:20:13,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:13,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:20:13,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:20:13,509 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:13,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:13,579 INFO L93 Difference]: Finished difference Result 541 states and 1484 transitions. [2021-08-29 22:20:13,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:20:13,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-08-29 22:20:13,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:13,586 INFO L225 Difference]: With dead ends: 541 [2021-08-29 22:20:13,586 INFO L226 Difference]: Without dead ends: 410 [2021-08-29 22:20:13,586 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.98ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:20:13,587 INFO L928 BasicCegarLoop]: 16 mSDtfsCounter, 18 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.80ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.56ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:13,588 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 35 Invalid, 46 Unknown, 0 Unchecked, 1.80ms Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 33.56ms Time] [2021-08-29 22:20:13,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-08-29 22:20:13,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 340. [2021-08-29 22:20:13,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 339 states have (on average 2.7640117994100293) internal successors, (937), 339 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:13,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 937 transitions. [2021-08-29 22:20:13,616 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 937 transitions. Word has length 9 [2021-08-29 22:20:13,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:13,617 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 937 transitions. [2021-08-29 22:20:13,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 937 transitions. [2021-08-29 22:20:13,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 22:20:13,618 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:13,618 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:13,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 22:20:13,619 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:13,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:13,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1055670873, now seen corresponding path program 1 times [2021-08-29 22:20:13,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:13,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158418131] [2021-08-29 22:20:13,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:13,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:13,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:13,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:13,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158418131] [2021-08-29 22:20:13,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158418131] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:13,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:13,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:20:13,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840201367] [2021-08-29 22:20:13,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:20:13,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:13,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:20:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:20:13,719 INFO L87 Difference]: Start difference. First operand 340 states and 937 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:13,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:13,798 INFO L93 Difference]: Finished difference Result 444 states and 1134 transitions. [2021-08-29 22:20:13,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:20:13,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-29 22:20:13,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:13,802 INFO L225 Difference]: With dead ends: 444 [2021-08-29 22:20:13,802 INFO L226 Difference]: Without dead ends: 356 [2021-08-29 22:20:13,802 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.05ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:20:13,804 INFO L928 BasicCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.25ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.86ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:13,805 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 50 Invalid, 56 Unknown, 0 Unchecked, 1.25ms Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 53.86ms Time] [2021-08-29 22:20:13,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-08-29 22:20:13,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 286. [2021-08-29 22:20:13,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 2.6596491228070174) internal successors, (758), 285 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:13,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 758 transitions. [2021-08-29 22:20:13,827 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 758 transitions. Word has length 10 [2021-08-29 22:20:13,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:13,828 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 758 transitions. [2021-08-29 22:20:13,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:13,828 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 758 transitions. [2021-08-29 22:20:13,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 22:20:13,830 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:13,831 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:13,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 22:20:13,831 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:13,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:13,832 INFO L82 PathProgramCache]: Analyzing trace with hash 745746672, now seen corresponding path program 1 times [2021-08-29 22:20:13,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:13,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331674357] [2021-08-29 22:20:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:13,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:13,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:13,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:13,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331674357] [2021-08-29 22:20:13,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331674357] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:13,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:13,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:20:13,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307932809] [2021-08-29 22:20:13,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:20:13,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:13,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:20:13,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:20:13,930 INFO L87 Difference]: Start difference. First operand 286 states and 758 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:13,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:13,992 INFO L93 Difference]: Finished difference Result 378 states and 966 transitions. [2021-08-29 22:20:13,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:20:13,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-29 22:20:13,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:13,994 INFO L225 Difference]: With dead ends: 378 [2021-08-29 22:20:13,994 INFO L226 Difference]: Without dead ends: 338 [2021-08-29 22:20:13,995 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.35ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:20:13,996 INFO L928 BasicCegarLoop]: 17 mSDtfsCounter, 33 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.11ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.40ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:13,996 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 54 Invalid, 51 Unknown, 0 Unchecked, 1.11ms Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 42.40ms Time] [2021-08-29 22:20:13,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-08-29 22:20:14,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 278. [2021-08-29 22:20:14,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 277 states have (on average 2.6353790613718413) internal successors, (730), 277 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 730 transitions. [2021-08-29 22:20:14,008 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 730 transitions. Word has length 11 [2021-08-29 22:20:14,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:14,008 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 730 transitions. [2021-08-29 22:20:14,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,008 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 730 transitions. [2021-08-29 22:20:14,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 22:20:14,010 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:14,010 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:14,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 22:20:14,010 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:14,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:14,011 INFO L82 PathProgramCache]: Analyzing trace with hash -383721491, now seen corresponding path program 1 times [2021-08-29 22:20:14,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:14,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709920935] [2021-08-29 22:20:14,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:14,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:14,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:14,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709920935] [2021-08-29 22:20:14,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709920935] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:14,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:14,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:20:14,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156677166] [2021-08-29 22:20:14,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:20:14,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:14,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:20:14,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:20:14,090 INFO L87 Difference]: Start difference. First operand 278 states and 730 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:14,152 INFO L93 Difference]: Finished difference Result 380 states and 939 transitions. [2021-08-29 22:20:14,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:20:14,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-29 22:20:14,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:14,154 INFO L225 Difference]: With dead ends: 380 [2021-08-29 22:20:14,154 INFO L226 Difference]: Without dead ends: 320 [2021-08-29 22:20:14,155 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.67ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:20:14,157 INFO L928 BasicCegarLoop]: 18 mSDtfsCounter, 33 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.34ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:14,157 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 49 Invalid, 56 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 35.34ms Time] [2021-08-29 22:20:14,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-08-29 22:20:14,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 234. [2021-08-29 22:20:14,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 2.592274678111588) internal successors, (604), 233 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 604 transitions. [2021-08-29 22:20:14,169 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 604 transitions. Word has length 12 [2021-08-29 22:20:14,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:14,170 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 604 transitions. [2021-08-29 22:20:14,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,170 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 604 transitions. [2021-08-29 22:20:14,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 22:20:14,173 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:14,173 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:14,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 22:20:14,173 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:14,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:14,175 INFO L82 PathProgramCache]: Analyzing trace with hash -888343240, now seen corresponding path program 1 times [2021-08-29 22:20:14,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:14,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643926086] [2021-08-29 22:20:14,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:14,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:14,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:14,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643926086] [2021-08-29 22:20:14,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643926086] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:14,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:14,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:20:14,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198023356] [2021-08-29 22:20:14,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:20:14,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:14,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:20:14,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:20:14,256 INFO L87 Difference]: Start difference. First operand 234 states and 604 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:14,308 INFO L93 Difference]: Finished difference Result 310 states and 780 transitions. [2021-08-29 22:20:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:20:14,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-29 22:20:14,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:14,313 INFO L225 Difference]: With dead ends: 310 [2021-08-29 22:20:14,313 INFO L226 Difference]: Without dead ends: 282 [2021-08-29 22:20:14,314 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.60ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:20:14,320 INFO L928 BasicCegarLoop]: 16 mSDtfsCounter, 31 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.81ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.59ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:14,320 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 56 Invalid, 50 Unknown, 0 Unchecked, 0.81ms Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 34.59ms Time] [2021-08-29 22:20:14,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-08-29 22:20:14,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 222. [2021-08-29 22:20:14,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 2.5610859728506785) internal successors, (566), 221 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 566 transitions. [2021-08-29 22:20:14,329 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 566 transitions. Word has length 12 [2021-08-29 22:20:14,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:14,329 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 566 transitions. [2021-08-29 22:20:14,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,329 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 566 transitions. [2021-08-29 22:20:14,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-29 22:20:14,331 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:14,331 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:14,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 22:20:14,331 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:14,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:14,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1088675810, now seen corresponding path program 1 times [2021-08-29 22:20:14,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:14,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538193772] [2021-08-29 22:20:14,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:14,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:14,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:14,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538193772] [2021-08-29 22:20:14,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538193772] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:14,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:14,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:20:14,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707257928] [2021-08-29 22:20:14,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:20:14,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:14,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:20:14,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:20:14,419 INFO L87 Difference]: Start difference. First operand 222 states and 566 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:14,460 INFO L93 Difference]: Finished difference Result 356 states and 871 transitions. [2021-08-29 22:20:14,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 22:20:14,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-29 22:20:14,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:14,462 INFO L225 Difference]: With dead ends: 356 [2021-08-29 22:20:14,462 INFO L226 Difference]: Without dead ends: 200 [2021-08-29 22:20:14,462 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.78ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-29 22:20:14,463 INFO L928 BasicCegarLoop]: 14 mSDtfsCounter, 50 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.32ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:14,463 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 48 Invalid, 51 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 28.32ms Time] [2021-08-29 22:20:14,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-08-29 22:20:14,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164. [2021-08-29 22:20:14,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 163 states have (on average 2.392638036809816) internal successors, (390), 163 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 390 transitions. [2021-08-29 22:20:14,468 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 390 transitions. Word has length 13 [2021-08-29 22:20:14,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:14,468 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 390 transitions. [2021-08-29 22:20:14,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,469 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 390 transitions. [2021-08-29 22:20:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-29 22:20:14,469 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:14,469 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:14,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 22:20:14,469 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:14,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:14,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1768860038, now seen corresponding path program 2 times [2021-08-29 22:20:14,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:14,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117576126] [2021-08-29 22:20:14,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:14,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:14,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:14,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117576126] [2021-08-29 22:20:14,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117576126] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:14,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:14,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:20:14,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342750250] [2021-08-29 22:20:14,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:20:14,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:14,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:20:14,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:20:14,537 INFO L87 Difference]: Start difference. First operand 164 states and 390 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:14,576 INFO L93 Difference]: Finished difference Result 238 states and 555 transitions. [2021-08-29 22:20:14,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 22:20:14,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-29 22:20:14,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:14,578 INFO L225 Difference]: With dead ends: 238 [2021-08-29 22:20:14,578 INFO L226 Difference]: Without dead ends: 136 [2021-08-29 22:20:14,578 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.25ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-29 22:20:14,579 INFO L928 BasicCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.46ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.01ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:14,580 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 46 Invalid, 43 Unknown, 0 Unchecked, 0.46ms Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 26.01ms Time] [2021-08-29 22:20:14,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-08-29 22:20:14,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 116. [2021-08-29 22:20:14,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 2.347826086956522) internal successors, (270), 115 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 270 transitions. [2021-08-29 22:20:14,583 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 270 transitions. Word has length 13 [2021-08-29 22:20:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:14,583 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 270 transitions. [2021-08-29 22:20:14,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,584 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 270 transitions. [2021-08-29 22:20:14,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 22:20:14,584 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:14,584 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:14,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 22:20:14,585 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:14,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:14,585 INFO L82 PathProgramCache]: Analyzing trace with hash 609918462, now seen corresponding path program 1 times [2021-08-29 22:20:14,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:14,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510083313] [2021-08-29 22:20:14,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:14,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:14,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:14,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510083313] [2021-08-29 22:20:14,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510083313] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:14,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:14,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 22:20:14,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420830735] [2021-08-29 22:20:14,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:20:14,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:14,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:20:14,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:20:14,659 INFO L87 Difference]: Start difference. First operand 116 states and 270 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:14,706 INFO L93 Difference]: Finished difference Result 136 states and 306 transitions. [2021-08-29 22:20:14,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:20:14,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-08-29 22:20:14,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:14,707 INFO L225 Difference]: With dead ends: 136 [2021-08-29 22:20:14,707 INFO L226 Difference]: Without dead ends: 64 [2021-08-29 22:20:14,708 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.79ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-29 22:20:14,708 INFO L928 BasicCegarLoop]: 19 mSDtfsCounter, 31 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.01ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:14,708 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 65 Invalid, 57 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 33.01ms Time] [2021-08-29 22:20:14,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-08-29 22:20:14,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-08-29 22:20:14,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 2.0317460317460316) internal successors, (128), 63 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 128 transitions. [2021-08-29 22:20:14,710 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 128 transitions. Word has length 14 [2021-08-29 22:20:14,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:14,710 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 128 transitions. [2021-08-29 22:20:14,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,710 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 128 transitions. [2021-08-29 22:20:14,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 22:20:14,711 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:14,711 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:14,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 22:20:14,711 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:14,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:14,711 INFO L82 PathProgramCache]: Analyzing trace with hash 2047349910, now seen corresponding path program 2 times [2021-08-29 22:20:14,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:14,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983642639] [2021-08-29 22:20:14,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:14,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:14,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:14,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:14,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983642639] [2021-08-29 22:20:14,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983642639] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:14,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:14,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:20:14,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433190181] [2021-08-29 22:20:14,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 22:20:14,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:14,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 22:20:14,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:20:14,739 INFO L87 Difference]: Start difference. First operand 64 states and 128 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:14,760 INFO L93 Difference]: Finished difference Result 52 states and 91 transitions. [2021-08-29 22:20:14,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 22:20:14,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-08-29 22:20:14,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:14,762 INFO L225 Difference]: With dead ends: 52 [2021-08-29 22:20:14,762 INFO L226 Difference]: Without dead ends: 52 [2021-08-29 22:20:14,763 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:20:14,764 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.09ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:14,765 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 15 Invalid, 15 Unknown, 0 Unchecked, 0.18ms Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 20.09ms Time] [2021-08-29 22:20:14,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-08-29 22:20:14,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-08-29 22:20:14,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.7843137254901962) internal successors, (91), 51 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 91 transitions. [2021-08-29 22:20:14,768 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 91 transitions. Word has length 14 [2021-08-29 22:20:14,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:14,768 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 91 transitions. [2021-08-29 22:20:14,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,768 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2021-08-29 22:20:14,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 22:20:14,769 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:14,769 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:14,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 22:20:14,769 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:14,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:14,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1057863740, now seen corresponding path program 1 times [2021-08-29 22:20:14,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:14,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228093189] [2021-08-29 22:20:14,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:14,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:14,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:14,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:14,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228093189] [2021-08-29 22:20:14,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228093189] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:14,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:14,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:20:14,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28996704] [2021-08-29 22:20:14,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:20:14,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:14,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:20:14,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:20:14,820 INFO L87 Difference]: Start difference. First operand 52 states and 91 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:14,834 INFO L93 Difference]: Finished difference Result 34 states and 49 transitions. [2021-08-29 22:20:14,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 22:20:14,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-29 22:20:14,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:14,835 INFO L225 Difference]: With dead ends: 34 [2021-08-29 22:20:14,836 INFO L226 Difference]: Without dead ends: 34 [2021-08-29 22:20:14,836 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.95ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:20:14,837 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.22ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.20ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:14,837 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 18 Invalid, 22 Unknown, 0 Unchecked, 0.22ms Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 13.20ms Time] [2021-08-29 22:20:14,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-08-29 22:20:14,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-08-29 22:20:14,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 33 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2021-08-29 22:20:14,839 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 49 transitions. Word has length 15 [2021-08-29 22:20:14,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:14,840 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 49 transitions. [2021-08-29 22:20:14,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,840 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2021-08-29 22:20:14,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 22:20:14,840 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:20:14,840 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:20:14,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 22:20:14,841 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-29 22:20:14,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:20:14,842 INFO L82 PathProgramCache]: Analyzing trace with hash -983794377, now seen corresponding path program 1 times [2021-08-29 22:20:14,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:20:14,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878814512] [2021-08-29 22:20:14,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:20:14,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:20:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:20:14,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:20:14,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:20:14,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878814512] [2021-08-29 22:20:14,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878814512] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:20:14,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:20:14,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:20:14,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601516384] [2021-08-29 22:20:14,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:20:14,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:20:14,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:20:14,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:20:14,897 INFO L87 Difference]: Start difference. First operand 34 states and 49 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:20:14,909 INFO L93 Difference]: Finished difference Result 26 states and 38 transitions. [2021-08-29 22:20:14,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:20:14,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-29 22:20:14,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:20:14,911 INFO L225 Difference]: With dead ends: 26 [2021-08-29 22:20:14,911 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 22:20:14,911 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.42ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:20:14,912 INFO L928 BasicCegarLoop]: 6 mSDtfsCounter, 16 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.19ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.94ms IncrementalHoareTripleChecker+Time [2021-08-29 22:20:14,912 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 10 Invalid, 17 Unknown, 0 Unchecked, 0.19ms Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 10.94ms Time] [2021-08-29 22:20:14,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 22:20:14,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 22:20:14,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 22:20:14,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-08-29 22:20:14,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:20:14,914 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 22:20:14,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:20:14,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 22:20:14,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 22:20:14,917 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-08-29 22:20:14,917 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-08-29 22:20:14,918 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-08-29 22:20:14,918 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-08-29 22:20:14,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 22:20:14,921 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-29 22:20:14,921 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 22:20:14,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 10:20:14 BasicIcfg [2021-08-29 22:20:14,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 22:20:14,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 22:20:14,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 22:20:14,926 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 22:20:14,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:20:10" (3/4) ... [2021-08-29 22:20:14,928 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 22:20:14,933 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-08-29 22:20:14,933 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-08-29 22:20:14,933 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-08-29 22:20:14,935 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-08-29 22:20:14,936 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 22:20:14,936 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 22:20:14,936 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 22:20:14,963 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 22:20:14,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 22:20:14,964 INFO L158 Benchmark]: Toolchain (without parser) took 5502.82ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 39.3MB in the beginning and 57.0MB in the end (delta: -17.7MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2021-08-29 22:20:14,964 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 42.3MB in the end (delta: 48.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 22:20:14,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.18ms. Allocated memory is still 60.8MB. Free memory was 39.0MB in the beginning and 34.5MB in the end (delta: 4.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 22:20:14,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.14ms. Allocated memory is still 60.8MB. Free memory was 34.3MB in the beginning and 32.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:20:14,966 INFO L158 Benchmark]: Boogie Preprocessor took 45.39ms. Allocated memory is still 60.8MB. Free memory was 32.3MB in the beginning and 30.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:20:14,967 INFO L158 Benchmark]: RCFGBuilder took 362.50ms. Allocated memory is still 60.8MB. Free memory was 30.9MB in the beginning and 37.9MB in the end (delta: -6.9MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-08-29 22:20:14,968 INFO L158 Benchmark]: TraceAbstraction took 4581.99ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 37.3MB in the beginning and 60.3MB in the end (delta: -23.0MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-08-29 22:20:14,968 INFO L158 Benchmark]: Witness Printer took 36.93ms. Allocated memory is still 88.1MB. Free memory was 60.3MB in the beginning and 57.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 22:20:14,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 42.3MB in the end (delta: 48.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.18ms. Allocated memory is still 60.8MB. Free memory was 39.0MB in the beginning and 34.5MB in the end (delta: 4.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.14ms. Allocated memory is still 60.8MB. Free memory was 34.3MB in the beginning and 32.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.39ms. Allocated memory is still 60.8MB. Free memory was 32.3MB in the beginning and 30.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.50ms. Allocated memory is still 60.8MB. Free memory was 30.9MB in the beginning and 37.9MB in the end (delta: -6.9MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4581.99ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 37.3MB in the beginning and 60.3MB in the end (delta: -23.0MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Witness Printer took 36.93ms. Allocated memory is still 88.1MB. Free memory was 60.3MB in the beginning and 57.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2393.58ms, 91 PlacesBefore, 32 PlacesAfterwards, 83 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 2589 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1430, positive: 1353, positive conditional: 0, positive unconditional: 1353, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 976, positive: 945, positive conditional: 0, positive unconditional: 945, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 976, positive: 939, positive conditional: 0, positive unconditional: 939, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 87, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1430, positive: 408, positive conditional: 0, positive unconditional: 408, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 976, unknown conditional: 0, unknown unconditional: 976] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4447.70ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 20.97ms, AutomataDifference: 676.49ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 2471.95ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 294 SdHoareTripleChecker+Valid, 342.02ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 294 mSDsluCounter, 458 SdHoareTripleChecker+Invalid, 271.50ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 424 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 168 mSDtfsCounter, 420 mSolverCounterSat, 8.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 201.36ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=340occurred in iteration=2, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 130.16ms AutomataMinimizationTime, 12 MinimizatonAttempts, 402 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.76ms SsaConstructionTime, 214.33ms SatisfiabilityAnalysisTime, 674.93ms InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 623 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-29 22:20:15,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...