./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe017_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/safe017_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 9900832e3eb275a51766e54e18663ea088e173f4 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:22:51,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 22:22:51,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 22:22:51,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 22:22:51,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 22:22:51,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 22:22:51,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 22:22:51,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 22:22:51,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 22:22:51,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 22:22:51,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 22:22:51,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 22:22:51,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 22:22:51,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 22:22:51,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 22:22:51,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 22:22:51,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 22:22:51,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 22:22:51,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 22:22:51,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 22:22:51,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 22:22:51,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 22:22:51,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 22:22:51,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 22:22:51,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 22:22:51,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 22:22:51,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 22:22:51,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 22:22:51,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 22:22:51,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 22:22:51,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 22:22:51,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 22:22:51,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 22:22:51,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 22:22:51,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 22:22:51,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 22:22:51,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 22:22:51,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 22:22:51,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 22:22:51,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 22:22:51,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 22:22:51,192 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 22:22:51,222 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 22:22:51,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 22:22:51,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 22:22:51,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 22:22:51,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 22:22:51,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 22:22:51,226 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 22:22:51,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 22:22:51,226 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 22:22:51,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 22:22:51,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 22:22:51,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 22:22:51,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 22:22:51,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 22:22:51,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 22:22:51,228 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 22:22:51,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 22:22:51,228 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 22:22:51,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 22:22:51,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 22:22:51,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 22:22:51,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 22:22:51,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:22:51,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 22:22:51,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 22:22:51,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 22:22:51,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 22:22:51,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 22:22:51,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 22:22:51,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 22:22:51,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9900832e3eb275a51766e54e18663ea088e173f4 [2021-08-29 22:22:51,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 22:22:51,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 22:22:51,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 22:22:51,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 22:22:51,492 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 22:22:51,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe017_tso.oepc.i [2021-08-29 22:22:51,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d148820/30e0bf154f4341eca9910cc91a09b478/FLAGb7a499dbc [2021-08-29 22:22:51,912 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 22:22:51,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe017_tso.oepc.i [2021-08-29 22:22:51,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d148820/30e0bf154f4341eca9910cc91a09b478/FLAGb7a499dbc [2021-08-29 22:22:52,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d148820/30e0bf154f4341eca9910cc91a09b478 [2021-08-29 22:22:52,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 22:22:52,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 22:22:52,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 22:22:52,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 22:22:52,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 22:22:52,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b652e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52, skipping insertion in model container [2021-08-29 22:22:52,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 22:22:52,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 22:22:52,483 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/safe017_tso.oepc.i[950,963] [2021-08-29 22:22:52,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:22:52,666 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 22:22:52,676 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/safe017_tso.oepc.i[950,963] [2021-08-29 22:22:52,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:22:52,719 INFO L208 MainTranslator]: Completed translation [2021-08-29 22:22:52,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52 WrapperNode [2021-08-29 22:22:52,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 22:22:52,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 22:22:52,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 22:22:52,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 22:22:52,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 22:22:52,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 22:22:52,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 22:22:52,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 22:22:52,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 22:22:52,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 22:22:52,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 22:22:52,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 22:22:52,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52" (1/1) ... [2021-08-29 22:22:52,801 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:22:52,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 22:22:52,831 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 22:22:52,857 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 22:22:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 22:22:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-29 22:22:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 22:22:52,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 22:22:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-29 22:22:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-29 22:22:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-29 22:22:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-29 22:22:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-29 22:22:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-29 22:22:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 22:22:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-29 22:22:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 22:22:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 22:22:52,884 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 22:22:53,101 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 22:22:53,101 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-29 22:22:53,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:22:53 BoogieIcfgContainer [2021-08-29 22:22:53,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 22:22:53,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 22:22:53,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 22:22:53,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 22:22:53,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:22:52" (1/3) ... [2021-08-29 22:22:53,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5034b3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:22:53, skipping insertion in model container [2021-08-29 22:22:53,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:22:52" (2/3) ... [2021-08-29 22:22:53,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5034b3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:22:53, skipping insertion in model container [2021-08-29 22:22:53,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:22:53" (3/3) ... [2021-08-29 22:22:53,108 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_tso.oepc.i [2021-08-29 22:22:53,111 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-29 22:22:53,111 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 22:22:53,112 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 22:22:53,112 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-29 22:22:53,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,142 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,142 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,144 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,144 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,145 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,145 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,145 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,145 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,145 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,146 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,146 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,148 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,149 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,149 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,149 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,156 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,156 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,161 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,161 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:22:53,162 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-29 22:22:53,196 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 22:22:53,201 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 22:22:53,201 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-29 22:22:53,213 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-08-29 22:22:53,222 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 81 transitions, 177 flow [2021-08-29 22:22:53,223 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 81 transitions, 177 flow [2021-08-29 22:22:53,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 81 transitions, 177 flow [2021-08-29 22:22:53,279 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2021-08-29 22:22:53,279 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-29 22:22:53,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-08-29 22:22:53,285 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2021-08-29 22:22:55,166 INFO L131 LiptonReduction]: Checked pairs total: 2647 [2021-08-29 22:22:55,166 INFO L133 LiptonReduction]: Total number of compositions: 70 [2021-08-29 22:22:55,172 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2021-08-29 22:22:55,186 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 226 states, 225 states have (on average 3.031111111111111) internal successors, (682), 225 states have internal predecessors, (682), 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 22:22:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 225 states have (on average 3.031111111111111) internal successors, (682), 225 states have internal predecessors, (682), 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 22:22:55,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 22:22:55,191 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:22:55,191 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:22:55,192 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 22:22:55,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:22:55,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1551058170, now seen corresponding path program 1 times [2021-08-29 22:22:55,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:22:55,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066309163] [2021-08-29 22:22:55,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:22:55,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:22:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:22:55,302 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 22:22:55,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:22:55,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066309163] [2021-08-29 22:22:55,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066309163] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:22:55,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:22:55,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:22:55,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635760594] [2021-08-29 22:22:55,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 22:22:55,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:22:55,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 22:22:55,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 22:22:55,321 INFO L87 Difference]: Start difference. First operand has 226 states, 225 states have (on average 3.031111111111111) internal successors, (682), 225 states have internal predecessors, (682), 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 22:22:55,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:22:55,339 INFO L93 Difference]: Finished difference Result 226 states and 634 transitions. [2021-08-29 22:22:55,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 22:22:55,341 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 22:22:55,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:22:55,357 INFO L225 Difference]: With dead ends: 226 [2021-08-29 22:22:55,358 INFO L226 Difference]: Without dead ends: 226 [2021-08-29 22:22:55,358 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 22:22:55,360 INFO L928 BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.21ms IncrementalHoareTripleChecker+Time [2021-08-29 22:22:55,360 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 5 Unknown, 0 Unchecked, 0.20ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 4.21ms Time] [2021-08-29 22:22:55,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-08-29 22:22:55,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2021-08-29 22:22:55,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 2.8177777777777777) internal successors, (634), 225 states have internal predecessors, (634), 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 22:22:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2021-08-29 22:22:55,391 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2021-08-29 22:22:55,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:22:55,391 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2021-08-29 22:22:55,391 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 22:22:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2021-08-29 22:22:55,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-29 22:22:55,392 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:22:55,392 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:22:55,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 22:22:55,393 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 22:22:55,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:22:55,393 INFO L82 PathProgramCache]: Analyzing trace with hash -838166973, now seen corresponding path program 1 times [2021-08-29 22:22:55,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:22:55,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014623841] [2021-08-29 22:22:55,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:22:55,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:22:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:22:55,474 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 22:22:55,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:22:55,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014623841] [2021-08-29 22:22:55,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014623841] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:22:55,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:22:55,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:22:55,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900485136] [2021-08-29 22:22:55,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:22:55,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:22:55,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:22:55,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:22:55,476 INFO L87 Difference]: Start difference. First operand 226 states and 634 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 22:22:55,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:22:55,511 INFO L93 Difference]: Finished difference Result 420 states and 1101 transitions. [2021-08-29 22:22:55,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:22:55,511 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 22:22:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:22:55,513 INFO L225 Difference]: With dead ends: 420 [2021-08-29 22:22:55,513 INFO L226 Difference]: Without dead ends: 312 [2021-08-29 22:22:55,513 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.47ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:22:55,514 INFO L928 BasicCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.69ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.68ms IncrementalHoareTripleChecker+Time [2021-08-29 22:22:55,514 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 38 Invalid, 37 Unknown, 0 Unchecked, 0.69ms Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 19.68ms Time] [2021-08-29 22:22:55,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-08-29 22:22:55,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 256. [2021-08-29 22:22:55,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 2.6431372549019607) internal successors, (674), 255 states have internal predecessors, (674), 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 22:22:55,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 674 transitions. [2021-08-29 22:22:55,525 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 674 transitions. Word has length 9 [2021-08-29 22:22:55,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:22:55,525 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 674 transitions. [2021-08-29 22:22:55,525 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 22:22:55,525 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 674 transitions. [2021-08-29 22:22:55,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 22:22:55,526 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:22:55,526 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:22:55,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 22:22:55,526 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 22:22:55,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:22:55,527 INFO L82 PathProgramCache]: Analyzing trace with hash 39896379, now seen corresponding path program 1 times [2021-08-29 22:22:55,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:22:55,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859711277] [2021-08-29 22:22:55,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:22:55,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:22:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:22:55,595 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 22:22:55,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:22:55,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859711277] [2021-08-29 22:22:55,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859711277] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:22:55,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:22:55,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:22:55,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034200927] [2021-08-29 22:22:55,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:22:55,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:22:55,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:22:55,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:22:55,596 INFO L87 Difference]: Start difference. First operand 256 states and 674 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 22:22:55,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:22:55,636 INFO L93 Difference]: Finished difference Result 344 states and 853 transitions. [2021-08-29 22:22:55,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:22:55,637 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 22:22:55,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:22:55,638 INFO L225 Difference]: With dead ends: 344 [2021-08-29 22:22:55,638 INFO L226 Difference]: Without dead ends: 282 [2021-08-29 22:22:55,638 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.24ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:22:55,639 INFO L928 BasicCegarLoop]: 18 mSDtfsCounter, 35 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.71ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.97ms IncrementalHoareTripleChecker+Time [2021-08-29 22:22:55,639 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 44 Invalid, 41 Unknown, 0 Unchecked, 0.71ms Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 22.97ms Time] [2021-08-29 22:22:55,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-08-29 22:22:55,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 218. [2021-08-29 22:22:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 2.608294930875576) internal successors, (566), 217 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 22:22:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 566 transitions. [2021-08-29 22:22:55,646 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 566 transitions. Word has length 10 [2021-08-29 22:22:55,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:22:55,646 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 566 transitions. [2021-08-29 22:22:55,646 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 22:22:55,646 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 566 transitions. [2021-08-29 22:22:55,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 22:22:55,647 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:22:55,647 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:22:55,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 22:22:55,647 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 22:22:55,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:22:55,647 INFO L82 PathProgramCache]: Analyzing trace with hash -213396527, now seen corresponding path program 1 times [2021-08-29 22:22:55,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:22:55,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922510957] [2021-08-29 22:22:55,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:22:55,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:22:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:22:55,690 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 22:22:55,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:22:55,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922510957] [2021-08-29 22:22:55,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922510957] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:22:55,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:22:55,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:22:55,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057452527] [2021-08-29 22:22:55,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:22:55,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:22:55,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:22:55,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:22:55,692 INFO L87 Difference]: Start difference. First operand 218 states and 566 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 22:22:55,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:22:55,729 INFO L93 Difference]: Finished difference Result 322 states and 783 transitions. [2021-08-29 22:22:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:22:55,730 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 22:22:55,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:22:55,731 INFO L225 Difference]: With dead ends: 322 [2021-08-29 22:22:55,731 INFO L226 Difference]: Without dead ends: 264 [2021-08-29 22:22:55,731 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.25ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:22:55,732 INFO L928 BasicCegarLoop]: 17 mSDtfsCounter, 38 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.62ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.03ms IncrementalHoareTripleChecker+Time [2021-08-29 22:22:55,732 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 47 Invalid, 41 Unknown, 0 Unchecked, 0.62ms Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 21.03ms Time] [2021-08-29 22:22:55,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-08-29 22:22:55,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 208. [2021-08-29 22:22:55,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 2.570048309178744) internal successors, (532), 207 states have internal predecessors, (532), 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 22:22:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 532 transitions. [2021-08-29 22:22:55,737 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 532 transitions. Word has length 10 [2021-08-29 22:22:55,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:22:55,738 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 532 transitions. [2021-08-29 22:22:55,738 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 22:22:55,738 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 532 transitions. [2021-08-29 22:22:55,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 22:22:55,739 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:22:55,739 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:22:55,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 22:22:55,739 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 22:22:55,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:22:55,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1236763609, now seen corresponding path program 1 times [2021-08-29 22:22:55,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:22:55,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115530734] [2021-08-29 22:22:55,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:22:55,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:22:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:22:55,790 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 22:22:55,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:22:55,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115530734] [2021-08-29 22:22:55,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115530734] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:22:55,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:22:55,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:22:55,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706559566] [2021-08-29 22:22:55,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:22:55,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:22:55,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:22:55,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:22:55,792 INFO L87 Difference]: Start difference. First operand 208 states and 532 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 22:22:55,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:22:55,832 INFO L93 Difference]: Finished difference Result 293 states and 703 transitions. [2021-08-29 22:22:55,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:22:55,832 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 22:22:55,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:22:55,833 INFO L225 Difference]: With dead ends: 293 [2021-08-29 22:22:55,833 INFO L226 Difference]: Without dead ends: 250 [2021-08-29 22:22:55,834 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.20ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:22:55,834 INFO L928 BasicCegarLoop]: 17 mSDtfsCounter, 34 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.79ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.73ms IncrementalHoareTripleChecker+Time [2021-08-29 22:22:55,835 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 46 Invalid, 38 Unknown, 0 Unchecked, 0.79ms Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 22.73ms Time] [2021-08-29 22:22:55,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-08-29 22:22:55,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 198. [2021-08-29 22:22:55,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 2.527918781725888) internal successors, (498), 197 states have internal predecessors, (498), 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 22:22:55,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 498 transitions. [2021-08-29 22:22:55,839 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 498 transitions. Word has length 11 [2021-08-29 22:22:55,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:22:55,839 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 498 transitions. [2021-08-29 22:22:55,839 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 22:22:55,840 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 498 transitions. [2021-08-29 22:22:55,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 22:22:55,840 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:22:55,840 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:22:55,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 22:22:55,841 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 22:22:55,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:22:55,841 INFO L82 PathProgramCache]: Analyzing trace with hash -194444127, now seen corresponding path program 1 times [2021-08-29 22:22:55,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:22:55,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043471441] [2021-08-29 22:22:55,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:22:55,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:22:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:22:55,879 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 22:22:55,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:22:55,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043471441] [2021-08-29 22:22:55,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043471441] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:22:55,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:22:55,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:22:55,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795874602] [2021-08-29 22:22:55,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:22:55,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:22:55,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:22:55,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:22:55,880 INFO L87 Difference]: Start difference. First operand 198 states and 498 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 22:22:55,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:22:55,920 INFO L93 Difference]: Finished difference Result 300 states and 699 transitions. [2021-08-29 22:22:55,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:22:55,920 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 22:22:55,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:22:55,921 INFO L225 Difference]: With dead ends: 300 [2021-08-29 22:22:55,921 INFO L226 Difference]: Without dead ends: 238 [2021-08-29 22:22:55,921 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.88ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:22:55,922 INFO L928 BasicCegarLoop]: 23 mSDtfsCounter, 25 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.63ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.19ms IncrementalHoareTripleChecker+Time [2021-08-29 22:22:55,922 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 65 Invalid, 50 Unknown, 0 Unchecked, 0.63ms Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 23.19ms Time] [2021-08-29 22:22:55,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-08-29 22:22:55,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 182. [2021-08-29 22:22:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.453038674033149) internal successors, (444), 181 states have internal predecessors, (444), 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 22:22:55,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 444 transitions. [2021-08-29 22:22:55,926 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 444 transitions. Word has length 12 [2021-08-29 22:22:55,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:22:55,926 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 444 transitions. [2021-08-29 22:22:55,926 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 22:22:55,926 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 444 transitions. [2021-08-29 22:22:55,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 22:22:55,926 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:22:55,927 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:22:55,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 22:22:55,927 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 22:22:55,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:22:55,927 INFO L82 PathProgramCache]: Analyzing trace with hash 57061456, now seen corresponding path program 1 times [2021-08-29 22:22:55,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:22:55,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418967727] [2021-08-29 22:22:55,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:22:55,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:22:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:22:55,975 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 22:22:55,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:22:55,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418967727] [2021-08-29 22:22:55,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418967727] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:22:55,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:22:55,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:22:55,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845475706] [2021-08-29 22:22:55,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:22:55,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:22:55,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:22:55,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:22:55,977 INFO L87 Difference]: Start difference. First operand 182 states and 444 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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 22:22:56,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:22:56,011 INFO L93 Difference]: Finished difference Result 205 states and 450 transitions. [2021-08-29 22:22:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:22:56,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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 22:22:56,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:22:56,012 INFO L225 Difference]: With dead ends: 205 [2021-08-29 22:22:56,012 INFO L226 Difference]: Without dead ends: 153 [2021-08-29 22:22:56,012 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:22:56,013 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.33ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.57ms IncrementalHoareTripleChecker+Time [2021-08-29 22:22:56,013 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 28 Invalid, 40 Unknown, 0 Unchecked, 0.33ms Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 25.57ms Time] [2021-08-29 22:22:56,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-29 22:22:56,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-08-29 22:22:56,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 2.1907894736842106) internal successors, (333), 152 states have internal predecessors, (333), 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 22:22:56,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 333 transitions. [2021-08-29 22:22:56,017 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 333 transitions. Word has length 12 [2021-08-29 22:22:56,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:22:56,017 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 333 transitions. [2021-08-29 22:22:56,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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 22:22:56,017 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 333 transitions. [2021-08-29 22:22:56,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-29 22:22:56,018 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:22:56,018 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:22:56,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 22:22:56,018 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 22:22:56,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:22:56,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1295092389, now seen corresponding path program 1 times [2021-08-29 22:22:56,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:22:56,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378666471] [2021-08-29 22:22:56,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:22:56,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:22:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:22:56,058 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 22:22:56,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:22:56,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378666471] [2021-08-29 22:22:56,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378666471] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:22:56,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:22:56,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:22:56,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907815353] [2021-08-29 22:22:56,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:22:56,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:22:56,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:22:56,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:22:56,059 INFO L87 Difference]: Start difference. First operand 153 states and 333 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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 22:22:56,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:22:56,094 INFO L93 Difference]: Finished difference Result 143 states and 280 transitions. [2021-08-29 22:22:56,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 22:22:56,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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 22:22:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:22:56,095 INFO L225 Difference]: With dead ends: 143 [2021-08-29 22:22:56,095 INFO L226 Difference]: Without dead ends: 102 [2021-08-29 22:22:56,095 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 11.93ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:22:56,095 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 28 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.40ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.68ms IncrementalHoareTripleChecker+Time [2021-08-29 22:22:56,096 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 37 Invalid, 53 Unknown, 0 Unchecked, 0.40ms Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 27.68ms Time] [2021-08-29 22:22:56,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-08-29 22:22:56,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-08-29 22:22:56,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.8712871287128714) internal successors, (189), 101 states have internal predecessors, (189), 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 22:22:56,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 189 transitions. [2021-08-29 22:22:56,098 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 189 transitions. Word has length 13 [2021-08-29 22:22:56,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:22:56,098 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 189 transitions. [2021-08-29 22:22:56,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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 22:22:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 189 transitions. [2021-08-29 22:22:56,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 22:22:56,098 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:22:56,098 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:22:56,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 22:22:56,098 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 22:22:56,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:22:56,099 INFO L82 PathProgramCache]: Analyzing trace with hash -984907728, now seen corresponding path program 1 times [2021-08-29 22:22:56,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:22:56,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067693448] [2021-08-29 22:22:56,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:22:56,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:22:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:22:56,153 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 22:22:56,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:22:56,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067693448] [2021-08-29 22:22:56,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067693448] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:22:56,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:22:56,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:22:56,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544787255] [2021-08-29 22:22:56,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:22:56,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:22:56,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:22:56,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:22:56,155 INFO L87 Difference]: Start difference. First operand 102 states and 189 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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 22:22:56,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:22:56,186 INFO L93 Difference]: Finished difference Result 149 states and 262 transitions. [2021-08-29 22:22:56,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 22:22:56,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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 22:22:56,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:22:56,187 INFO L225 Difference]: With dead ends: 149 [2021-08-29 22:22:56,187 INFO L226 Difference]: Without dead ends: 95 [2021-08-29 22:22:56,187 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.46ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-29 22:22:56,189 INFO L928 BasicCegarLoop]: 15 mSDtfsCounter, 31 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.36ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.00ms IncrementalHoareTripleChecker+Time [2021-08-29 22:22:56,189 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 55 Invalid, 41 Unknown, 0 Unchecked, 0.36ms Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 19.00ms Time] [2021-08-29 22:22:56,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-08-29 22:22:56,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 89. [2021-08-29 22:22:56,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.7954545454545454) internal successors, (158), 88 states have internal predecessors, (158), 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 22:22:56,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 158 transitions. [2021-08-29 22:22:56,192 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 158 transitions. Word has length 14 [2021-08-29 22:22:56,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:22:56,192 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 158 transitions. [2021-08-29 22:22:56,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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 22:22:56,192 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 158 transitions. [2021-08-29 22:22:56,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 22:22:56,192 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:22:56,192 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:22:56,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 22:22:56,193 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 22:22:56,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:22:56,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1682447188, now seen corresponding path program 1 times [2021-08-29 22:22:56,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:22:56,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158635857] [2021-08-29 22:22:56,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:22:56,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:22:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:22:56,258 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 22:22:56,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:22:56,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158635857] [2021-08-29 22:22:56,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158635857] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:22:56,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:22:56,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 22:22:56,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156625275] [2021-08-29 22:22:56,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 22:22:56,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:22:56,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 22:22:56,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:22:56,260 INFO L87 Difference]: Start difference. First operand 89 states and 158 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 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 22:22:56,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:22:56,298 INFO L93 Difference]: Finished difference Result 80 states and 138 transitions. [2021-08-29 22:22:56,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 22:22:56,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 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 22:22:56,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:22:56,298 INFO L225 Difference]: With dead ends: 80 [2021-08-29 22:22:56,299 INFO L226 Difference]: Without dead ends: 39 [2021-08-29 22:22:56,300 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 14.27ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-29 22:22:56,301 INFO L928 BasicCegarLoop]: 11 mSDtfsCounter, 32 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.45ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.92ms IncrementalHoareTripleChecker+Time [2021-08-29 22:22:56,301 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 34 Invalid, 52 Unknown, 0 Unchecked, 0.45ms Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 30.92ms Time] [2021-08-29 22:22:56,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-08-29 22:22:56,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-08-29 22:22:56,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.605263157894737) internal successors, (61), 38 states have internal predecessors, (61), 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 22:22:56,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 61 transitions. [2021-08-29 22:22:56,303 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 61 transitions. Word has length 15 [2021-08-29 22:22:56,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:22:56,303 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 61 transitions. [2021-08-29 22:22:56,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 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 22:22:56,304 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 61 transitions. [2021-08-29 22:22:56,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 22:22:56,304 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:22:56,304 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:22:56,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 22:22:56,304 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 22:22:56,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:22:56,308 INFO L82 PathProgramCache]: Analyzing trace with hash 914094065, now seen corresponding path program 1 times [2021-08-29 22:22:56,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:22:56,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198464482] [2021-08-29 22:22:56,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:22:56,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:22:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:22:56,360 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 22:22:56,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:22:56,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198464482] [2021-08-29 22:22:56,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198464482] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:22:56,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:22:56,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 22:22:56,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741572525] [2021-08-29 22:22:56,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:22:56,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:22:56,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:22:56,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:22:56,362 INFO L87 Difference]: Start difference. First operand 39 states and 61 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 22:22:56,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:22:56,379 INFO L93 Difference]: Finished difference Result 38 states and 60 transitions. [2021-08-29 22:22:56,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:22:56,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 17 [2021-08-29 22:22:56,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:22:56,379 INFO L225 Difference]: With dead ends: 38 [2021-08-29 22:22:56,380 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 22:22:56,380 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.86ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:22:56,380 INFO L928 BasicCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.15ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.53ms IncrementalHoareTripleChecker+Time [2021-08-29 22:22:56,381 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 26 Invalid, 27 Unknown, 0 Unchecked, 0.15ms Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 11.53ms Time] [2021-08-29 22:22:56,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 22:22:56,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 22:22:56,381 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 22:22:56,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 22:22:56,381 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-08-29 22:22:56,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:22:56,382 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 22:22:56,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 22:22:56,383 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 22:22:56,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 22:22:56,385 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-08-29 22:22:56,385 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-08-29 22:22:56,385 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-08-29 22:22:56,385 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-08-29 22:22:56,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 22:22:56,389 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-29 22:22:56,389 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 22:22:56,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 10:22:56 BasicIcfg [2021-08-29 22:22:56,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 22:22:56,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 22:22:56,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 22:22:56,392 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 22:22:56,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:22:53" (3/4) ... [2021-08-29 22:22:56,394 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 22:22:56,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-08-29 22:22:56,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-08-29 22:22:56,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-08-29 22:22:56,402 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-08-29 22:22:56,403 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 22:22:56,403 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 22:22:56,403 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 22:22:56,428 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 22:22:56,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 22:22:56,429 INFO L158 Benchmark]: Toolchain (without parser) took 4127.31ms. Allocated memory was 50.3MB in the beginning and 92.3MB in the end (delta: 41.9MB). Free memory was 24.3MB in the beginning and 54.8MB in the end (delta: -30.4MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-08-29 22:22:56,429 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.9MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 22:22:56,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.38ms. Allocated memory is still 62.9MB. Free memory was 47.4MB in the beginning and 36.7MB in the end (delta: 10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 22:22:56,430 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.09ms. Allocated memory is still 62.9MB. Free memory was 36.7MB in the beginning and 34.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:22:56,430 INFO L158 Benchmark]: Boogie Preprocessor took 25.36ms. Allocated memory is still 62.9MB. Free memory was 34.8MB in the beginning and 33.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:22:56,430 INFO L158 Benchmark]: RCFGBuilder took 311.28ms. Allocated memory is still 62.9MB. Free memory was 33.3MB in the beginning and 37.9MB in the end (delta: -4.6MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-08-29 22:22:56,431 INFO L158 Benchmark]: TraceAbstraction took 3287.42ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 37.6MB in the beginning and 57.3MB in the end (delta: -19.7MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-08-29 22:22:56,431 INFO L158 Benchmark]: Witness Printer took 37.11ms. Allocated memory is still 92.3MB. Free memory was 57.3MB in the beginning and 54.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:22:56,432 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.9MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.38ms. Allocated memory is still 62.9MB. Free memory was 47.4MB in the beginning and 36.7MB in the end (delta: 10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.09ms. Allocated memory is still 62.9MB. Free memory was 36.7MB in the beginning and 34.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.36ms. Allocated memory is still 62.9MB. Free memory was 34.8MB in the beginning and 33.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.28ms. Allocated memory is still 62.9MB. Free memory was 33.3MB in the beginning and 37.9MB in the end (delta: -4.6MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3287.42ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 37.6MB in the beginning and 57.3MB in the end (delta: -19.7MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Witness Printer took 37.11ms. Allocated memory is still 92.3MB. Free memory was 57.3MB in the beginning and 54.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1942.54ms, 89 PlacesBefore, 31 PlacesAfterwards, 81 TransitionsBefore, 22 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 70 TotalNumberOfCompositions, 2647 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1706, positive: 1622, positive conditional: 0, positive unconditional: 1622, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1003, positive: 973, positive conditional: 0, positive unconditional: 973, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1003, positive: 967, positive conditional: 0, positive unconditional: 967, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1706, positive: 649, positive conditional: 0, positive unconditional: 649, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 1003, unknown conditional: 0, unknown unconditional: 1003] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - 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, 103 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3192.80ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 10.64ms, AutomataDifference: 436.77ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 1984.70ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 267 SdHoareTripleChecker+Valid, 228.51ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 267 mSDsluCounter, 432 SdHoareTripleChecker+Invalid, 183.78ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 391 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 383 IncrementalHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 163 mSDtfsCounter, 383 mSolverCounterSat, 5.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 167.06ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=2, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 59.93ms AutomataMinimizationTime, 11 MinimizatonAttempts, 290 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.32ms SsaConstructionTime, 144.22ms SatisfiabilityAnalysisTime, 397.74ms InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 616 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 22:22:56,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...