./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/ldv-races/race-3_2-container_of-global.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 f642aa2c8450a6773cb633057d1c74c446cbd236 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 16:03:26,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 16:03:26,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 16:03:26,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 16:03:26,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 16:03:26,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 16:03:26,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 16:03:26,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 16:03:26,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 16:03:26,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 16:03:26,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 16:03:26,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 16:03:26,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 16:03:26,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 16:03:26,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 16:03:26,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 16:03:26,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 16:03:26,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 16:03:26,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 16:03:26,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 16:03:26,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 16:03:26,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 16:03:26,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 16:03:26,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 16:03:26,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 16:03:26,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 16:03:26,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 16:03:26,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 16:03:26,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 16:03:26,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 16:03:26,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 16:03:26,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 16:03:26,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 16:03:26,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 16:03:26,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 16:03:26,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 16:03:26,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 16:03:26,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 16:03:26,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 16:03:26,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 16:03:26,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 16:03:26,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 16:03:26,401 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 16:03:26,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 16:03:26,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 16:03:26,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 16:03:26,404 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 16:03:26,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 16:03:26,404 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 16:03:26,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 16:03:26,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 16:03:26,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 16:03:26,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 16:03:26,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 16:03:26,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 16:03:26,406 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 16:03:26,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 16:03:26,406 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 16:03:26,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 16:03:26,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 16:03:26,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 16:03:26,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 16:03:26,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 16:03:26,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 16:03:26,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 16:03:26,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 16:03:26,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 16:03:26,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 16:03:26,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 16:03:26,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 16:03:26,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f642aa2c8450a6773cb633057d1c74c446cbd236 [2021-07-05 16:03:26,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 16:03:26,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 16:03:26,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 16:03:26,697 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 16:03:26,697 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 16:03:26,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2021-07-05 16:03:26,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5dc5b8a9/c4c21982e99a481a99c97877ff89b1eb/FLAG62675d217 [2021-07-05 16:03:27,154 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 16:03:27,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2021-07-05 16:03:27,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5dc5b8a9/c4c21982e99a481a99c97877ff89b1eb/FLAG62675d217 [2021-07-05 16:03:27,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5dc5b8a9/c4c21982e99a481a99c97877ff89b1eb [2021-07-05 16:03:27,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 16:03:27,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 16:03:27,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 16:03:27,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 16:03:27,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 16:03:27,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 04:03:27" (1/1) ... [2021-07-05 16:03:27,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44575be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:27, skipping insertion in model container [2021-07-05 16:03:27,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 04:03:27" (1/1) ... [2021-07-05 16:03:27,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 16:03:27,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 16:03:27,646 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-05 16:03:27,957 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-07-05 16:03:27,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 16:03:27,985 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 16:03:27,992 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-05 16:03:28,011 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-07-05 16:03:28,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 16:03:28,188 INFO L208 MainTranslator]: Completed translation [2021-07-05 16:03:28,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28 WrapperNode [2021-07-05 16:03:28,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 16:03:28,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 16:03:28,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 16:03:28,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 16:03:28,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28" (1/1) ... [2021-07-05 16:03:28,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28" (1/1) ... [2021-07-05 16:03:28,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 16:03:28,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 16:03:28,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 16:03:28,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 16:03:28,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28" (1/1) ... [2021-07-05 16:03:28,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28" (1/1) ... [2021-07-05 16:03:28,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28" (1/1) ... [2021-07-05 16:03:28,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28" (1/1) ... [2021-07-05 16:03:28,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28" (1/1) ... [2021-07-05 16:03:28,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28" (1/1) ... [2021-07-05 16:03:28,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28" (1/1) ... [2021-07-05 16:03:28,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 16:03:28,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 16:03:28,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 16:03:28,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 16:03:28,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28" (1/1) ... [2021-07-05 16:03:28,286 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 16:03:28,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 16:03:28,299 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) [2021-07-05 16:03:28,333 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 [2021-07-05 16:03:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-05 16:03:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 16:03:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-05 16:03:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-05 16:03:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-07-05 16:03:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 16:03:28,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 16:03:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-07-05 16:03:28,354 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-07-05 16:03:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 16:03:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-05 16:03:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 16:03:28,358 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-05 16:03:28,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 16:03:28,863 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-07-05 16:03:28,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 04:03:28 BoogieIcfgContainer [2021-07-05 16:03:28,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 16:03:28,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 16:03:28,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 16:03:28,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 16:03:28,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 04:03:27" (1/3) ... [2021-07-05 16:03:28,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed7d7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 04:03:28, skipping insertion in model container [2021-07-05 16:03:28,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 04:03:28" (2/3) ... [2021-07-05 16:03:28,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed7d7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 04:03:28, skipping insertion in model container [2021-07-05 16:03:28,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 04:03:28" (3/3) ... [2021-07-05 16:03:28,871 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-07-05 16:03:28,876 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 16:03:28,877 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 16:03:28,877 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-07-05 16:03:28,877 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 16:03:28,909 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,909 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,909 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,909 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,910 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,910 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,910 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,910 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,910 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,910 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,911 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,911 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,911 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,911 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,912 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,912 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,912 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,912 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,912 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,912 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,913 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,913 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,913 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,913 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,913 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,914 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,914 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,914 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,914 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,915 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,915 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,915 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,916 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,916 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,916 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,916 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,916 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,916 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,916 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,917 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,917 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,917 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,917 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,917 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,918 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,918 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,918 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,918 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,918 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,918 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,918 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,919 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,919 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,919 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,919 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,919 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,919 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,920 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,920 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,920 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,920 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,920 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,921 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,922 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,922 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,922 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,922 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,922 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,922 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,923 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,923 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,923 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,923 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,923 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,924 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,924 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,924 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,924 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,924 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,924 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,925 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,925 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,925 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,926 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,927 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,929 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,929 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,929 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,929 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,930 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,930 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,930 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,931 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,935 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,935 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,936 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,937 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,937 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,937 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,937 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,937 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,937 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,937 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,938 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,938 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 16:03:28,946 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-05 16:03:28,979 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 16:03:28,982 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 16:03:28,982 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 16:03:29,004 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 16:03:29,014 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:03:29,015 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:03:29,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 162 transitions, 346 flow [2021-07-05 16:03:29,072 INFO L129 PetriNetUnfolder]: 11/202 cut-off events. [2021-07-05 16:03:29,073 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-07-05 16:03:29,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 202 events. 11/202 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2021-07-05 16:03:29,079 INFO L116 LiptonReduction]: Number of co-enabled transitions 1926 [2021-07-05 16:03:46,916 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-07-05 16:03:47,112 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-07-05 16:03:56,395 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2021-07-05 16:04:01,608 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2021-07-05 16:04:01,861 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2021-07-05 16:04:07,455 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2021-07-05 16:04:07,981 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-07-05 16:04:08,136 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-07-05 16:04:08,625 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 131 [2021-07-05 16:04:08,788 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-07-05 16:04:08,984 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2021-07-05 16:04:09,323 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2021-07-05 16:04:09,448 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-07-05 16:04:10,145 WARN L205 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 161 [2021-07-05 16:04:10,463 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-07-05 16:04:11,160 WARN L205 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 168 [2021-07-05 16:04:11,501 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-07-05 16:04:12,773 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2021-07-05 16:04:13,342 WARN L205 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-07-05 16:04:14,443 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 184 DAG size of output: 182 [2021-07-05 16:04:14,831 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-07-05 16:04:14,835 INFO L131 LiptonReduction]: Checked pairs total: 3726 [2021-07-05 16:04:14,835 INFO L133 LiptonReduction]: Total number of compositions: 187 [2021-07-05 16:04:14,841 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 34 transitions, 90 flow [2021-07-05 16:04:14,859 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 192 states, 181 states have (on average 2.314917127071823) internal successors, (419), 191 states have internal predecessors, (419), 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) [2021-07-05 16:04:14,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 181 states have (on average 2.314917127071823) internal successors, (419), 191 states have internal predecessors, (419), 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) [2021-07-05 16:04:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-07-05 16:04:14,871 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:04:14,871 INFO L525 BasicCegarLoop]: trace histogram [1] [2021-07-05 16:04:14,872 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:04:14,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:04:14,877 INFO L82 PathProgramCache]: Analyzing trace with hash 596, now seen corresponding path program 1 times [2021-07-05 16:04:14,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:04:14,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955284617] [2021-07-05 16:04:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:04:14,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:04:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:04:15,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:04:15,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:04:15,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955284617] [2021-07-05 16:04:15,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955284617] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:04:15,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:04:15,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-07-05 16:04:15,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360316126] [2021-07-05 16:04:15,038 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-05 16:04:15,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:04:15,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-05 16:04:15,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 16:04:15,051 INFO L87 Difference]: Start difference. First operand has 192 states, 181 states have (on average 2.314917127071823) internal successors, (419), 191 states have internal predecessors, (419), 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, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2021-07-05 16:04:15,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:04:15,071 INFO L93 Difference]: Finished difference Result 190 states and 416 transitions. [2021-07-05 16:04:15,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-05 16:04:15,072 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2021-07-05 16:04:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:04:15,081 INFO L225 Difference]: With dead ends: 190 [2021-07-05 16:04:15,082 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 16:04:15,082 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 16:04:15,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 16:04:15,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 16:04:15,096 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) [2021-07-05 16:04:15,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 16:04:15,097 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1 [2021-07-05 16:04:15,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:04:15,097 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 16:04:15,097 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2021-07-05 16:04:15,097 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 16:04:15,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 16:04:15,099 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 16:04:15,099 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 16:04:15,101 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/8) [2021-07-05 16:04:15,104 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 16:04:15,108 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 16:04:15,108 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 16:04:15,114 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 16:04:15,114 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:04:15,114 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:04:15,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 162 transitions, 346 flow [2021-07-05 16:04:15,140 INFO L129 PetriNetUnfolder]: 11/202 cut-off events. [2021-07-05 16:04:15,141 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-07-05 16:04:15,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 202 events. 11/202 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2021-07-05 16:04:15,142 INFO L116 LiptonReduction]: Number of co-enabled transitions 1926 [2021-07-05 16:04:24,958 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-07-05 16:04:30,071 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-07-05 16:04:42,217 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2021-07-05 16:04:42,781 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2021-07-05 16:04:43,040 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2021-07-05 16:04:43,804 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-05 16:04:43,990 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-05 16:04:44,187 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-05 16:04:44,382 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-05 16:04:44,621 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2021-07-05 16:04:45,432 WARN L205 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 173 [2021-07-05 16:04:45,818 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-07-05 16:04:46,840 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 185 DAG size of output: 179 [2021-07-05 16:04:47,283 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-07-05 16:04:47,885 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 157 [2021-07-05 16:04:48,181 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-05 16:04:48,727 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 163 [2021-07-05 16:04:48,988 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-07-05 16:04:49,610 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-07-05 16:04:50,151 WARN L205 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-07-05 16:04:50,656 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2021-07-05 16:04:51,131 WARN L205 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-07-05 16:04:51,495 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-07-05 16:04:51,822 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-07-05 16:04:52,207 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-07-05 16:04:52,600 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-07-05 16:04:52,614 INFO L131 LiptonReduction]: Checked pairs total: 3913 [2021-07-05 16:04:52,614 INFO L133 LiptonReduction]: Total number of compositions: 188 [2021-07-05 16:04:52,614 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 34 transitions, 90 flow [2021-07-05 16:04:52,619 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 192 states, 181 states have (on average 2.314917127071823) internal successors, (419), 191 states have internal predecessors, (419), 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) [2021-07-05 16:04:52,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 181 states have (on average 2.314917127071823) internal successors, (419), 191 states have internal predecessors, (419), 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) [2021-07-05 16:04:52,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-07-05 16:04:52,619 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:04:52,619 INFO L525 BasicCegarLoop]: trace histogram [1] [2021-07-05 16:04:52,620 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:04:52,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:04:52,620 INFO L82 PathProgramCache]: Analyzing trace with hash 787, now seen corresponding path program 1 times [2021-07-05 16:04:52,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:04:52,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132569737] [2021-07-05 16:04:52,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:04:52,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:04:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:04:52,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:04:52,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:04:52,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132569737] [2021-07-05 16:04:52,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132569737] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:04:52,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:04:52,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-07-05 16:04:52,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374513486] [2021-07-05 16:04:52,662 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-05 16:04:52,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:04:52,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-05 16:04:52,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 16:04:52,666 INFO L87 Difference]: Start difference. First operand has 192 states, 181 states have (on average 2.314917127071823) internal successors, (419), 191 states have internal predecessors, (419), 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, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2021-07-05 16:04:52,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:04:52,670 INFO L93 Difference]: Finished difference Result 190 states and 416 transitions. [2021-07-05 16:04:52,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-05 16:04:52,670 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2021-07-05 16:04:52,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:04:52,670 INFO L225 Difference]: With dead ends: 190 [2021-07-05 16:04:52,670 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 16:04:52,670 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-05 16:04:52,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 16:04:52,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 16:04:52,671 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) [2021-07-05 16:04:52,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 16:04:52,671 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1 [2021-07-05 16:04:52,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:04:52,671 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 16:04:52,671 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2021-07-05 16:04:52,673 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 16:04:52,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 16:04:52,673 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-05 16:04:52,673 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 16:04:52,674 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION was SAFE (2/8) [2021-07-05 16:04:52,675 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 16:04:52,676 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 16:04:52,676 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 16:04:52,677 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 16:04:52,677 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:04:52,677 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:04:52,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 162 transitions, 346 flow [2021-07-05 16:04:52,689 INFO L129 PetriNetUnfolder]: 11/202 cut-off events. [2021-07-05 16:04:52,689 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-07-05 16:04:52,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 202 events. 11/202 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2021-07-05 16:04:52,691 INFO L116 LiptonReduction]: Number of co-enabled transitions 1926 [2021-07-05 16:05:12,038 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-07-05 16:05:14,372 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-07-05 16:05:23,085 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-07-05 16:05:23,295 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-07-05 16:05:28,757 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-07-05 16:05:32,683 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2021-07-05 16:05:32,847 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-05 16:05:33,404 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2021-07-05 16:05:33,706 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-07-05 16:05:33,933 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2021-07-05 16:05:34,045 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-07-05 16:05:34,328 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2021-07-05 16:05:34,458 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-07-05 16:05:35,751 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2021-07-05 16:05:36,249 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-07-05 16:05:37,292 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 184 DAG size of output: 182 [2021-07-05 16:05:37,741 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-07-05 16:05:38,536 WARN L205 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 166 [2021-07-05 16:05:38,898 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-07-05 16:05:39,848 WARN L205 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2021-07-05 16:05:40,263 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-07-05 16:05:40,266 INFO L131 LiptonReduction]: Checked pairs total: 3582 [2021-07-05 16:05:40,266 INFO L133 LiptonReduction]: Total number of compositions: 181 [2021-07-05 16:05:40,267 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 36 transitions, 94 flow [2021-07-05 16:05:40,271 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 209 states, 198 states have (on average 2.409090909090909) internal successors, (477), 208 states have internal predecessors, (477), 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) [2021-07-05 16:05:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 198 states have (on average 2.409090909090909) internal successors, (477), 208 states have internal predecessors, (477), 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) [2021-07-05 16:05:40,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-05 16:05:40,272 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:05:40,272 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-05 16:05:40,272 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:05:40,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:05:40,272 INFO L82 PathProgramCache]: Analyzing trace with hash 29677938, now seen corresponding path program 1 times [2021-07-05 16:05:40,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:05:40,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831327464] [2021-07-05 16:05:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:05:40,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:05:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:05:40,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:05:40,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 16:05:40,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:05:40,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:05:40,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:05:40,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 16:05:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:05:40,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:05:40,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831327464] [2021-07-05 16:05:40,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831327464] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:05:40,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:05:40,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 16:05:40,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146671185] [2021-07-05 16:05:40,369 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 16:05:40,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:05:40,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 16:05:40,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 16:05:40,370 INFO L87 Difference]: Start difference. First operand has 209 states, 198 states have (on average 2.409090909090909) internal successors, (477), 208 states have internal predecessors, (477), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-07-05 16:05:40,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:05:40,448 INFO L93 Difference]: Finished difference Result 280 states and 638 transitions. [2021-07-05 16:05:40,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 16:05:40,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-07-05 16:05:40,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:05:40,452 INFO L225 Difference]: With dead ends: 280 [2021-07-05 16:05:40,452 INFO L226 Difference]: Without dead ends: 115 [2021-07-05 16:05:40,452 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 16:05:40,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-07-05 16:05:40,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-07-05 16:05:40,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 2.1842105263157894) internal successors, (249), 114 states have internal predecessors, (249), 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) [2021-07-05 16:05:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 249 transitions. [2021-07-05 16:05:40,463 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 249 transitions. Word has length 4 [2021-07-05 16:05:40,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:05:40,464 INFO L442 AbstractCegarLoop]: Abstraction has 115 states and 249 transitions. [2021-07-05 16:05:40,464 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-07-05 16:05:40,464 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 249 transitions. [2021-07-05 16:05:40,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-07-05 16:05:40,465 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:05:40,465 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:05:40,465 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-05 16:05:40,465 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:05:40,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:05:40,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1475925024, now seen corresponding path program 1 times [2021-07-05 16:05:40,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:05:40,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358312623] [2021-07-05 16:05:40,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:05:40,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:05:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:05:40,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:05:40,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 16:05:40,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:05:40,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 16:05:40,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:05:40,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 16:05:40,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:05:40,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:05:40,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358312623] [2021-07-05 16:05:40,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358312623] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:05:40,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:05:40,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 16:05:40,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930582793] [2021-07-05 16:05:40,519 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 16:05:40,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:05:40,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 16:05:40,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 16:05:40,520 INFO L87 Difference]: Start difference. First operand 115 states and 249 transitions. Second operand has 3 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) [2021-07-05 16:05:40,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:05:40,528 INFO L93 Difference]: Finished difference Result 40 states and 75 transitions. [2021-07-05 16:05:40,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 16:05:40,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2021-07-05 16:05:40,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:05:40,529 INFO L225 Difference]: With dead ends: 40 [2021-07-05 16:05:40,529 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 16:05:40,530 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 16:05:40,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 16:05:40,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 16:05:40,530 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) [2021-07-05 16:05:40,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 16:05:40,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-07-05 16:05:40,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:05:40,531 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 16:05:40,531 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 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) [2021-07-05 16:05:40,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 16:05:40,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 16:05:40,531 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-05 16:05:40,531 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 16:05:40,532 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION was SAFE (3/8) [2021-07-05 16:05:40,532 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 16:05:40,533 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 16:05:40,533 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 16:05:40,534 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 16:05:40,535 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:05:40,535 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:05:40,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 162 transitions, 346 flow [2021-07-05 16:05:40,554 INFO L129 PetriNetUnfolder]: 11/202 cut-off events. [2021-07-05 16:05:40,555 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-07-05 16:05:40,555 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 202 events. 11/202 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2021-07-05 16:05:40,556 INFO L116 LiptonReduction]: Number of co-enabled transitions 1926 [2021-07-05 16:06:05,188 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-07-05 16:06:10,420 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-07-05 16:06:10,660 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-07-05 16:06:10,837 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-07-05 16:06:11,043 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-07-05 16:06:12,261 WARN L205 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2021-07-05 16:06:12,477 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-07-05 16:06:13,071 WARN L205 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 132 [2021-07-05 16:06:13,302 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-07-05 16:06:13,585 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2021-07-05 16:06:13,714 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-07-05 16:06:14,020 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2021-07-05 16:06:14,160 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-07-05 16:06:15,154 WARN L205 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2021-07-05 16:06:15,608 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-07-05 16:06:16,520 WARN L205 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 172 [2021-07-05 16:06:16,959 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-07-05 16:06:18,109 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2021-07-05 16:06:18,642 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-07-05 16:06:19,787 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 189 DAG size of output: 187 [2021-07-05 16:06:20,262 WARN L205 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-05 16:06:20,515 INFO L131 LiptonReduction]: Checked pairs total: 3606 [2021-07-05 16:06:20,515 INFO L133 LiptonReduction]: Total number of compositions: 183 [2021-07-05 16:06:20,516 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 34 transitions, 90 flow [2021-07-05 16:06:20,519 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 192 states, 181 states have (on average 2.314917127071823) internal successors, (419), 191 states have internal predecessors, (419), 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) [2021-07-05 16:06:20,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 181 states have (on average 2.314917127071823) internal successors, (419), 191 states have internal predecessors, (419), 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) [2021-07-05 16:06:20,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-07-05 16:06:20,519 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:06:20,519 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-07-05 16:06:20,520 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:06:20,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:06:20,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1091736007, now seen corresponding path program 1 times [2021-07-05 16:06:20,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:06:20,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952969575] [2021-07-05 16:06:20,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:06:20,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:06:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:06:20,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:06:20,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 16:06:20,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:06:20,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 16:06:20,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:06:20,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:06:20,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952969575] [2021-07-05 16:06:20,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952969575] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:06:20,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:06:20,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 16:06:20,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296513148] [2021-07-05 16:06:20,554 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 16:06:20,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:06:20,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 16:06:20,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 16:06:20,555 INFO L87 Difference]: Start difference. First operand has 192 states, 181 states have (on average 2.314917127071823) internal successors, (419), 191 states have internal predecessors, (419), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-07-05 16:06:20,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:06:20,610 INFO L93 Difference]: Finished difference Result 233 states and 523 transitions. [2021-07-05 16:06:20,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 16:06:20,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-07-05 16:06:20,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:06:20,611 INFO L225 Difference]: With dead ends: 233 [2021-07-05 16:06:20,611 INFO L226 Difference]: Without dead ends: 130 [2021-07-05 16:06:20,611 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 16:06:20,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-07-05 16:06:20,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-07-05 16:06:20,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 2.2170542635658914) internal successors, (286), 129 states have internal predecessors, (286), 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) [2021-07-05 16:06:20,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 286 transitions. [2021-07-05 16:06:20,617 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 286 transitions. Word has length 5 [2021-07-05 16:06:20,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:06:20,617 INFO L442 AbstractCegarLoop]: Abstraction has 130 states and 286 transitions. [2021-07-05 16:06:20,618 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-07-05 16:06:20,618 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 286 transitions. [2021-07-05 16:06:20,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 16:06:20,618 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:06:20,619 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:06:20,619 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-05 16:06:20,619 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:06:20,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:06:20,619 INFO L82 PathProgramCache]: Analyzing trace with hash -345436146, now seen corresponding path program 1 times [2021-07-05 16:06:20,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:06:20,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330910378] [2021-07-05 16:06:20,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:06:20,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:06:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:06:20,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:06:20,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 16:06:20,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:06:20,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 16:06:20,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:06:20,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 16:06:20,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:06:20,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:06:20,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330910378] [2021-07-05 16:06:20,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330910378] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:06:20,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:06:20,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 16:06:20,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997821812] [2021-07-05 16:06:20,651 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 16:06:20,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:06:20,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 16:06:20,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 16:06:20,652 INFO L87 Difference]: Start difference. First operand 130 states and 286 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-07-05 16:06:20,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:06:20,658 INFO L93 Difference]: Finished difference Result 40 states and 75 transitions. [2021-07-05 16:06:20,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 16:06:20,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2021-07-05 16:06:20,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:06:20,660 INFO L225 Difference]: With dead ends: 40 [2021-07-05 16:06:20,660 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 16:06:20,660 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 16:06:20,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 16:06:20,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 16:06:20,660 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) [2021-07-05 16:06:20,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 16:06:20,661 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-07-05 16:06:20,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:06:20,661 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 16:06:20,661 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-07-05 16:06:20,661 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 16:06:20,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 16:06:20,661 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-05 16:06:20,661 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 16:06:20,662 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION was SAFE (4/8) [2021-07-05 16:06:20,662 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 16:06:20,662 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 16:06:20,663 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 16:06:20,663 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 16:06:20,664 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:06:20,664 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:06:20,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 162 transitions, 346 flow [2021-07-05 16:06:20,678 INFO L129 PetriNetUnfolder]: 11/202 cut-off events. [2021-07-05 16:06:20,678 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-07-05 16:06:20,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 202 events. 11/202 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2021-07-05 16:06:20,680 INFO L116 LiptonReduction]: Number of co-enabled transitions 1926 [2021-07-05 16:06:36,183 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2021-07-05 16:06:41,129 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-07-05 16:06:51,144 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-07-05 16:07:07,407 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-07-05 16:07:07,625 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-07-05 16:07:08,137 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2021-07-05 16:07:08,332 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2021-07-05 16:07:08,627 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2021-07-05 16:07:08,729 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-07-05 16:07:09,001 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2021-07-05 16:07:09,123 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-07-05 16:07:09,302 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-07-05 16:07:09,485 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-07-05 16:07:09,718 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-07-05 16:07:09,960 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-07-05 16:07:10,068 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-07-05 16:07:10,172 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-07-05 16:07:10,294 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-07-05 16:07:10,410 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-07-05 16:07:11,039 WARN L205 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 166 [2021-07-05 16:07:11,365 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-07-05 16:07:12,082 WARN L205 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2021-07-05 16:07:12,404 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-07-05 16:07:13,376 WARN L205 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2021-07-05 16:07:13,830 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-07-05 16:07:14,813 WARN L205 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 177 [2021-07-05 16:07:15,220 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-07-05 16:07:15,222 INFO L131 LiptonReduction]: Checked pairs total: 3784 [2021-07-05 16:07:15,223 INFO L133 LiptonReduction]: Total number of compositions: 180 [2021-07-05 16:07:15,223 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 36 transitions, 94 flow [2021-07-05 16:07:15,226 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 209 states, 198 states have (on average 2.409090909090909) internal successors, (477), 208 states have internal predecessors, (477), 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) [2021-07-05 16:07:15,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 198 states have (on average 2.409090909090909) internal successors, (477), 208 states have internal predecessors, (477), 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) [2021-07-05 16:07:15,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:15,228 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:15,228 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:15,228 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:15,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:15,228 INFO L82 PathProgramCache]: Analyzing trace with hash 83007413, now seen corresponding path program 1 times [2021-07-05 16:07:15,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:15,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055728135] [2021-07-05 16:07:15,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:15,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:15,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 16:07:15,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 16:07:15,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 16:07:15,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-07-05 16:07:15,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 16:07:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:15,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:15,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055728135] [2021-07-05 16:07:15,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055728135] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:15,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:15,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 16:07:15,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786283516] [2021-07-05 16:07:15,433 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 16:07:15,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:15,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 16:07:15,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-05 16:07:15,435 INFO L87 Difference]: Start difference. First operand has 209 states, 198 states have (on average 2.409090909090909) internal successors, (477), 208 states have internal predecessors, (477), 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 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-07-05 16:07:15,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:15,598 INFO L93 Difference]: Finished difference Result 230 states and 497 transitions. [2021-07-05 16:07:15,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-05 16:07:15,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:15,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:15,599 INFO L225 Difference]: With dead ends: 230 [2021-07-05 16:07:15,599 INFO L226 Difference]: Without dead ends: 108 [2021-07-05 16:07:15,600 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 100.0ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-07-05 16:07:15,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-07-05 16:07:15,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 100. [2021-07-05 16:07:15,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.9393939393939394) internal successors, (192), 99 states have internal predecessors, (192), 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) [2021-07-05 16:07:15,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 192 transitions. [2021-07-05 16:07:15,604 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 192 transitions. Word has length 18 [2021-07-05 16:07:15,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:15,604 INFO L442 AbstractCegarLoop]: Abstraction has 100 states and 192 transitions. [2021-07-05 16:07:15,604 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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) [2021-07-05 16:07:15,604 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 192 transitions. [2021-07-05 16:07:15,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:15,605 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:15,605 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:15,605 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-05 16:07:15,605 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:15,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:15,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1142061773, now seen corresponding path program 1 times [2021-07-05 16:07:15,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:15,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563477933] [2021-07-05 16:07:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:15,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:15,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:15,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-05 16:07:15,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:15,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-05 16:07:15,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:15,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:15,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:15,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 16:07:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:15,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:15,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563477933] [2021-07-05 16:07:15,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563477933] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:15,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:15,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 16:07:15,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739840867] [2021-07-05 16:07:15,727 INFO L425 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-05 16:07:15,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:15,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-05 16:07:15,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-05 16:07:15,728 INFO L87 Difference]: Start difference. First operand 100 states and 192 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-07-05 16:07:15,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:15,901 INFO L93 Difference]: Finished difference Result 167 states and 309 transitions. [2021-07-05 16:07:15,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-05 16:07:15,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:15,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:15,902 INFO L225 Difference]: With dead ends: 167 [2021-07-05 16:07:15,902 INFO L226 Difference]: Without dead ends: 142 [2021-07-05 16:07:15,903 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 93.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-05 16:07:15,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-07-05 16:07:15,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 95. [2021-07-05 16:07:15,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.925531914893617) internal successors, (181), 94 states have internal predecessors, (181), 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) [2021-07-05 16:07:15,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 181 transitions. [2021-07-05 16:07:15,906 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 181 transitions. Word has length 18 [2021-07-05 16:07:15,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:15,906 INFO L442 AbstractCegarLoop]: Abstraction has 95 states and 181 transitions. [2021-07-05 16:07:15,906 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-07-05 16:07:15,906 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 181 transitions. [2021-07-05 16:07:15,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:15,907 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:15,907 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:15,907 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-05 16:07:15,907 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:15,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:15,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1657607477, now seen corresponding path program 2 times [2021-07-05 16:07:15,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:15,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516494274] [2021-07-05 16:07:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:15,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:16,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:16,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-05 16:07:16,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-05 16:07:16,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-05 16:07:16,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-05 16:07:16,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-05 16:07:16,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:16,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:16,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 16:07:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:16,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:16,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516494274] [2021-07-05 16:07:16,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516494274] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:16,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:16,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-05 16:07:16,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310638350] [2021-07-05 16:07:16,136 INFO L425 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-05 16:07:16,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:16,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-05 16:07:16,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-05 16:07:16,137 INFO L87 Difference]: Start difference. First operand 95 states and 181 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-07-05 16:07:16,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:16,454 INFO L93 Difference]: Finished difference Result 196 states and 348 transitions. [2021-07-05 16:07:16,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-05 16:07:16,454 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:16,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:16,455 INFO L225 Difference]: With dead ends: 196 [2021-07-05 16:07:16,455 INFO L226 Difference]: Without dead ends: 149 [2021-07-05 16:07:16,455 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 225.1ms TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2021-07-05 16:07:16,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-07-05 16:07:16,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 88. [2021-07-05 16:07:16,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.896551724137931) internal successors, (165), 87 states have internal predecessors, (165), 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) [2021-07-05 16:07:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 165 transitions. [2021-07-05 16:07:16,459 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 165 transitions. Word has length 18 [2021-07-05 16:07:16,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:16,459 INFO L442 AbstractCegarLoop]: Abstraction has 88 states and 165 transitions. [2021-07-05 16:07:16,459 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-07-05 16:07:16,459 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 165 transitions. [2021-07-05 16:07:16,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:16,460 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:16,460 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:16,460 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-05 16:07:16,460 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:16,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:16,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1891639435, now seen corresponding path program 3 times [2021-07-05 16:07:16,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:16,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850862541] [2021-07-05 16:07:16,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:16,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:16,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:16,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-05 16:07:16,541 INFO L142 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size [2021-07-05 16:07:16,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-07-05 16:07:16,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-05 16:07:16,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:16,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-05 16:07:16,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:16,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:16,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 16:07:16,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:16,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:16,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850862541] [2021-07-05 16:07:16,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850862541] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:16,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:16,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-05 16:07:16,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271700948] [2021-07-05 16:07:16,662 INFO L425 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-05 16:07:16,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:16,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-05 16:07:16,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-07-05 16:07:16,663 INFO L87 Difference]: Start difference. First operand 88 states and 165 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-07-05 16:07:16,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:16,928 INFO L93 Difference]: Finished difference Result 172 states and 310 transitions. [2021-07-05 16:07:16,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-05 16:07:16,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:16,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:16,929 INFO L225 Difference]: With dead ends: 172 [2021-07-05 16:07:16,929 INFO L226 Difference]: Without dead ends: 149 [2021-07-05 16:07:16,929 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 245.7ms TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-07-05 16:07:16,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-07-05 16:07:16,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 76. [2021-07-05 16:07:16,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.9333333333333333) internal successors, (145), 75 states have internal predecessors, (145), 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) [2021-07-05 16:07:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 145 transitions. [2021-07-05 16:07:16,932 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 145 transitions. Word has length 18 [2021-07-05 16:07:16,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:16,932 INFO L442 AbstractCegarLoop]: Abstraction has 76 states and 145 transitions. [2021-07-05 16:07:16,932 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-07-05 16:07:16,933 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 145 transitions. [2021-07-05 16:07:16,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:16,933 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:16,933 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:16,933 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-05 16:07:16,933 INFO L374 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:16,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:16,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1939873131, now seen corresponding path program 4 times [2021-07-05 16:07:16,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:16,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797524692] [2021-07-05 16:07:16,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:16,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:17,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:17,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 16:07:17,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-05 16:07:17,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-05 16:07:17,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-05 16:07:17,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-05 16:07:17,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:17,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:17,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 16:07:17,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:17,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:17,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797524692] [2021-07-05 16:07:17,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797524692] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:17,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:17,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-05 16:07:17,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749729570] [2021-07-05 16:07:17,137 INFO L425 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-05 16:07:17,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:17,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-05 16:07:17,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-05 16:07:17,138 INFO L87 Difference]: Start difference. First operand 76 states and 145 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-07-05 16:07:17,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:17,431 INFO L93 Difference]: Finished difference Result 166 states and 288 transitions. [2021-07-05 16:07:17,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-05 16:07:17,432 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:17,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:17,432 INFO L225 Difference]: With dead ends: 166 [2021-07-05 16:07:17,433 INFO L226 Difference]: Without dead ends: 108 [2021-07-05 16:07:17,433 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 199.8ms TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2021-07-05 16:07:17,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-07-05 16:07:17,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 70. [2021-07-05 16:07:17,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.8985507246376812) internal successors, (131), 69 states have internal predecessors, (131), 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) [2021-07-05 16:07:17,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 131 transitions. [2021-07-05 16:07:17,435 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 131 transitions. Word has length 18 [2021-07-05 16:07:17,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:17,435 INFO L442 AbstractCegarLoop]: Abstraction has 70 states and 131 transitions. [2021-07-05 16:07:17,435 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-07-05 16:07:17,435 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 131 transitions. [2021-07-05 16:07:17,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:17,435 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:17,435 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:17,435 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-05 16:07:17,435 INFO L374 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:17,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:17,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1731403609, now seen corresponding path program 2 times [2021-07-05 16:07:17,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:17,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825389374] [2021-07-05 16:07:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:17,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:17,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:17,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:17,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-05 16:07:17,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-05 16:07:17,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-05 16:07:17,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-05 16:07:17,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-05 16:07:17,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-05 16:07:17,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-05 16:07:17,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-05 16:07:17,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 16:07:17,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 16:07:17,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-07-05 16:07:17,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:17,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 16:07:17,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:17,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:17,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825389374] [2021-07-05 16:07:17,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825389374] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:17,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:17,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-05 16:07:17,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596601732] [2021-07-05 16:07:17,727 INFO L425 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-05 16:07:17,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:17,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-05 16:07:17,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-07-05 16:07:17,727 INFO L87 Difference]: Start difference. First operand 70 states and 131 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 11 states have internal predecessors, (18), 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) [2021-07-05 16:07:18,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:18,342 INFO L93 Difference]: Finished difference Result 127 states and 234 transitions. [2021-07-05 16:07:18,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-05 16:07:18,342 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 11 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:18,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:18,343 INFO L225 Difference]: With dead ends: 127 [2021-07-05 16:07:18,343 INFO L226 Difference]: Without dead ends: 115 [2021-07-05 16:07:18,343 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 461.9ms TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2021-07-05 16:07:18,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-07-05 16:07:18,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 103. [2021-07-05 16:07:18,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 102 states have (on average 1.9607843137254901) internal successors, (200), 102 states have internal predecessors, (200), 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) [2021-07-05 16:07:18,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 200 transitions. [2021-07-05 16:07:18,346 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 200 transitions. Word has length 18 [2021-07-05 16:07:18,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:18,346 INFO L442 AbstractCegarLoop]: Abstraction has 103 states and 200 transitions. [2021-07-05 16:07:18,346 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 11 states have internal predecessors, (18), 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) [2021-07-05 16:07:18,346 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 200 transitions. [2021-07-05 16:07:18,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:18,347 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:18,347 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:18,347 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-05 16:07:18,347 INFO L374 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:18,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:18,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1760031799, now seen corresponding path program 5 times [2021-07-05 16:07:18,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:18,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744466207] [2021-07-05 16:07:18,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:18,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:18,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:18,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-05 16:07:18,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:18,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-05 16:07:18,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:18,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:18,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 16:07:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:18,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:18,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744466207] [2021-07-05 16:07:18,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744466207] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:18,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:18,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 16:07:18,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112128086] [2021-07-05 16:07:18,471 INFO L425 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-05 16:07:18,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:18,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-05 16:07:18,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-05 16:07:18,472 INFO L87 Difference]: Start difference. First operand 103 states and 200 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-07-05 16:07:18,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:18,620 INFO L93 Difference]: Finished difference Result 127 states and 235 transitions. [2021-07-05 16:07:18,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-05 16:07:18,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:18,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:18,621 INFO L225 Difference]: With dead ends: 127 [2021-07-05 16:07:18,621 INFO L226 Difference]: Without dead ends: 111 [2021-07-05 16:07:18,621 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 83.7ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-07-05 16:07:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-07-05 16:07:18,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 101. [2021-07-05 16:07:18,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.95) internal successors, (195), 100 states have internal predecessors, (195), 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) [2021-07-05 16:07:18,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 195 transitions. [2021-07-05 16:07:18,623 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 195 transitions. Word has length 18 [2021-07-05 16:07:18,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:18,623 INFO L442 AbstractCegarLoop]: Abstraction has 101 states and 195 transitions. [2021-07-05 16:07:18,623 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-07-05 16:07:18,623 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 195 transitions. [2021-07-05 16:07:18,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:18,623 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:18,623 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:18,623 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-05 16:07:18,623 INFO L374 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:18,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:18,624 INFO L82 PathProgramCache]: Analyzing trace with hash -141404523, now seen corresponding path program 6 times [2021-07-05 16:07:18,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:18,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571732568] [2021-07-05 16:07:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:18,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:18,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:18,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 16:07:18,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-07-05 16:07:18,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-05 16:07:18,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-05 16:07:18,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-05 16:07:18,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:18,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:18,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:18,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 16:07:18,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:18,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:18,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571732568] [2021-07-05 16:07:18,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571732568] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:18,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:18,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-05 16:07:18,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318223764] [2021-07-05 16:07:18,796 INFO L425 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-05 16:07:18,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:18,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-05 16:07:18,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-07-05 16:07:18,797 INFO L87 Difference]: Start difference. First operand 101 states and 195 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-07-05 16:07:19,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:19,120 INFO L93 Difference]: Finished difference Result 149 states and 284 transitions. [2021-07-05 16:07:19,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-05 16:07:19,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:19,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:19,121 INFO L225 Difference]: With dead ends: 149 [2021-07-05 16:07:19,121 INFO L226 Difference]: Without dead ends: 107 [2021-07-05 16:07:19,121 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 227.3ms TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-07-05 16:07:19,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-07-05 16:07:19,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 97. [2021-07-05 16:07:19,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.9270833333333333) internal successors, (185), 96 states have internal predecessors, (185), 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) [2021-07-05 16:07:19,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 185 transitions. [2021-07-05 16:07:19,124 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 185 transitions. Word has length 18 [2021-07-05 16:07:19,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:19,124 INFO L442 AbstractCegarLoop]: Abstraction has 97 states and 185 transitions. [2021-07-05 16:07:19,124 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-07-05 16:07:19,124 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 185 transitions. [2021-07-05 16:07:19,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:19,125 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:19,125 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:19,125 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-05 16:07:19,125 INFO L374 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:19,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:19,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1840622063, now seen corresponding path program 7 times [2021-07-05 16:07:19,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:19,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904949940] [2021-07-05 16:07:19,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:19,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:19,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:19,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 16:07:19,218 INFO L142 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size [2021-07-05 16:07:19,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-07-05 16:07:19,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-05 16:07:19,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:19,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-05 16:07:19,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:19,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 16:07:19,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:19,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:19,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904949940] [2021-07-05 16:07:19,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904949940] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:19,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:19,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-05 16:07:19,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844136570] [2021-07-05 16:07:19,305 INFO L425 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-05 16:07:19,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:19,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-05 16:07:19,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-07-05 16:07:19,306 INFO L87 Difference]: Start difference. First operand 97 states and 185 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-07-05 16:07:19,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:19,513 INFO L93 Difference]: Finished difference Result 133 states and 241 transitions. [2021-07-05 16:07:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-05 16:07:19,514 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:19,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:19,514 INFO L225 Difference]: With dead ends: 133 [2021-07-05 16:07:19,515 INFO L226 Difference]: Without dead ends: 93 [2021-07-05 16:07:19,515 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 179.9ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-07-05 16:07:19,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-07-05 16:07:19,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-07-05 16:07:19,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.9021739130434783) internal successors, (175), 92 states have internal predecessors, (175), 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) [2021-07-05 16:07:19,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 175 transitions. [2021-07-05 16:07:19,517 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 175 transitions. Word has length 18 [2021-07-05 16:07:19,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:19,518 INFO L442 AbstractCegarLoop]: Abstraction has 93 states and 175 transitions. [2021-07-05 16:07:19,518 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-07-05 16:07:19,518 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 175 transitions. [2021-07-05 16:07:19,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:19,518 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:19,519 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:19,519 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-05 16:07:19,519 INFO L374 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:19,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:19,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1180309661, now seen corresponding path program 8 times [2021-07-05 16:07:19,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:19,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014270890] [2021-07-05 16:07:19,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:19,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:19,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:19,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 16:07:19,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-05 16:07:19,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-05 16:07:19,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:19,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-05 16:07:19,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:19,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:19,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 16:07:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:19,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:19,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014270890] [2021-07-05 16:07:19,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014270890] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:19,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:19,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-05 16:07:19,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959708571] [2021-07-05 16:07:19,683 INFO L425 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-05 16:07:19,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:19,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-05 16:07:19,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-05 16:07:19,683 INFO L87 Difference]: Start difference. First operand 93 states and 175 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-07-05 16:07:19,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:19,853 INFO L93 Difference]: Finished difference Result 92 states and 174 transitions. [2021-07-05 16:07:19,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-05 16:07:19,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:19,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:19,854 INFO L225 Difference]: With dead ends: 92 [2021-07-05 16:07:19,854 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 16:07:19,854 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-05 16:07:19,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 16:07:19,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 16:07:19,854 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) [2021-07-05 16:07:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 16:07:19,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-07-05 16:07:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:19,854 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 16:07:19,854 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-07-05 16:07:19,854 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 16:07:19,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 16:07:19,855 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-05 16:07:19,855 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 16:07:19,855 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION was SAFE (5/8) [2021-07-05 16:07:19,855 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 16:07:19,855 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 16:07:19,856 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 16:07:19,856 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 16:07:19,856 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:07:19,857 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 162 transitions, 346 flow [2021-07-05 16:07:19,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 162 transitions, 346 flow [2021-07-05 16:07:19,868 INFO L129 PetriNetUnfolder]: 11/202 cut-off events. [2021-07-05 16:07:19,868 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-07-05 16:07:19,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 202 events. 11/202 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2021-07-05 16:07:19,869 INFO L116 LiptonReduction]: Number of co-enabled transitions 1926 [2021-07-05 16:07:32,253 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-07-05 16:07:32,460 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-05 16:07:32,662 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-07-05 16:07:32,840 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-05 16:07:33,658 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 151 [2021-07-05 16:07:33,911 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-07-05 16:07:34,465 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 151 [2021-07-05 16:07:34,706 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-07-05 16:07:35,699 WARN L205 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 182 [2021-07-05 16:07:36,127 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-07-05 16:07:37,206 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2021-07-05 16:07:37,806 WARN L205 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-07-05 16:07:38,507 WARN L205 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 166 [2021-07-05 16:07:38,832 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-07-05 16:07:39,438 WARN L205 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 173 [2021-07-05 16:07:39,747 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-07-05 16:07:39,773 INFO L131 LiptonReduction]: Checked pairs total: 4478 [2021-07-05 16:07:39,773 INFO L133 LiptonReduction]: Total number of compositions: 189 [2021-07-05 16:07:39,774 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 36 transitions, 94 flow [2021-07-05 16:07:39,777 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 209 states, 198 states have (on average 2.409090909090909) internal successors, (477), 208 states have internal predecessors, (477), 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) [2021-07-05 16:07:39,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 198 states have (on average 2.409090909090909) internal successors, (477), 208 states have internal predecessors, (477), 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) [2021-07-05 16:07:39,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:39,778 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:39,778 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:39,778 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:39,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:39,779 INFO L82 PathProgramCache]: Analyzing trace with hash -13743107, now seen corresponding path program 1 times [2021-07-05 16:07:39,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:39,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416238191] [2021-07-05 16:07:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:39,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:39,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:39,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:39,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:39,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:39,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:39,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-05 16:07:39,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:39,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-07-05 16:07:39,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:39,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-07-05 16:07:39,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:39,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-07-05 16:07:39,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:39,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-05 16:07:39,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:39,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-05 16:07:39,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:39,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-07-05 16:07:39,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:39,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 16:07:39,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:39,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:39,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416238191] [2021-07-05 16:07:39,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416238191] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:39,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:39,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-05 16:07:39,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404522694] [2021-07-05 16:07:39,980 INFO L425 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-05 16:07:39,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:39,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-05 16:07:39,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-07-05 16:07:39,981 INFO L87 Difference]: Start difference. First operand has 209 states, 198 states have (on average 2.409090909090909) internal successors, (477), 208 states have internal predecessors, (477), 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 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-07-05 16:07:40,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:40,557 INFO L93 Difference]: Finished difference Result 285 states and 577 transitions. [2021-07-05 16:07:40,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-05 16:07:40,557 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:40,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:40,558 INFO L225 Difference]: With dead ends: 285 [2021-07-05 16:07:40,558 INFO L226 Difference]: Without dead ends: 110 [2021-07-05 16:07:40,558 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 302.5ms TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-07-05 16:07:40,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-07-05 16:07:40,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 95. [2021-07-05 16:07:40,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.9361702127659575) internal successors, (182), 94 states have internal predecessors, (182), 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) [2021-07-05 16:07:40,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 182 transitions. [2021-07-05 16:07:40,560 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 182 transitions. Word has length 18 [2021-07-05 16:07:40,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:40,560 INFO L442 AbstractCegarLoop]: Abstraction has 95 states and 182 transitions. [2021-07-05 16:07:40,561 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-07-05 16:07:40,561 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 182 transitions. [2021-07-05 16:07:40,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:40,561 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:40,561 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:40,561 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-05 16:07:40,561 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:40,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:40,562 INFO L82 PathProgramCache]: Analyzing trace with hash -659614335, now seen corresponding path program 2 times [2021-07-05 16:07:40,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:40,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936552722] [2021-07-05 16:07:40,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:40,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:40,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:40,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-07-05 16:07:40,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:40,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-07-05 16:07:40,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:40,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-07-05 16:07:40,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:40,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-05 16:07:40,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:40,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-07-05 16:07:40,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:40,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 16:07:40,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:40,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:40,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936552722] [2021-07-05 16:07:40,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936552722] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:40,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:40,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-05 16:07:40,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522546939] [2021-07-05 16:07:40,710 INFO L425 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-05 16:07:40,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:40,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-05 16:07:40,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-05 16:07:40,710 INFO L87 Difference]: Start difference. First operand 95 states and 182 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-07-05 16:07:40,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:40,969 INFO L93 Difference]: Finished difference Result 101 states and 191 transitions. [2021-07-05 16:07:40,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-05 16:07:40,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:40,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:40,969 INFO L225 Difference]: With dead ends: 101 [2021-07-05 16:07:40,970 INFO L226 Difference]: Without dead ends: 101 [2021-07-05 16:07:40,970 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 182.2ms TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-07-05 16:07:40,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-07-05 16:07:40,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 89. [2021-07-05 16:07:40,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.9318181818181819) internal successors, (170), 88 states have internal predecessors, (170), 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) [2021-07-05 16:07:40,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 170 transitions. [2021-07-05 16:07:40,971 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 170 transitions. Word has length 18 [2021-07-05 16:07:40,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:40,972 INFO L442 AbstractCegarLoop]: Abstraction has 89 states and 170 transitions. [2021-07-05 16:07:40,972 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-07-05 16:07:40,972 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 170 transitions. [2021-07-05 16:07:40,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:40,972 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:40,972 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:40,973 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-05 16:07:40,973 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:40,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:40,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1824448151, now seen corresponding path program 1 times [2021-07-05 16:07:40,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:40,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119652384] [2021-07-05 16:07:40,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:40,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 16:07:41,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:41,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-05 16:07:41,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:41,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-05 16:07:41,077 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.6 percent of original size [2021-07-05 16:07:41,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-05 16:07:41,090 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-07-05 16:07:41,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-07-05 16:07:41,104 INFO L142 QuantifierPusher]: treesize reduction 10, result has 70.6 percent of original size [2021-07-05 16:07:41,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-07-05 16:07:41,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:41,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-07-05 16:07:41,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:41,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-07-05 16:07:41,157 INFO L142 QuantifierPusher]: treesize reduction 23, result has 54.0 percent of original size [2021-07-05 16:07:41,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-05 16:07:41,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:41,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:41,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:41,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-05 16:07:41,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 16:07:41,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-05 16:07:41,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 16:07:41,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 16:07:41,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119652384] [2021-07-05 16:07:41,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119652384] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 16:07:41,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 16:07:41,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-05 16:07:41,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117625637] [2021-07-05 16:07:41,225 INFO L425 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-05 16:07:41,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 16:07:41,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-05 16:07:41,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-07-05 16:07:41,225 INFO L87 Difference]: Start difference. First operand 89 states and 170 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2021-07-05 16:07:41,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 16:07:41,728 INFO L93 Difference]: Finished difference Result 146 states and 239 transitions. [2021-07-05 16:07:41,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-05 16:07:41,728 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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 18 [2021-07-05 16:07:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 16:07:41,729 INFO L225 Difference]: With dead ends: 146 [2021-07-05 16:07:41,729 INFO L226 Difference]: Without dead ends: 137 [2021-07-05 16:07:41,729 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 428.5ms TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2021-07-05 16:07:41,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-07-05 16:07:41,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 90. [2021-07-05 16:07:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.9213483146067416) internal successors, (171), 89 states have internal predecessors, (171), 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) [2021-07-05 16:07:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 171 transitions. [2021-07-05 16:07:41,733 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 171 transitions. Word has length 18 [2021-07-05 16:07:41,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 16:07:41,733 INFO L442 AbstractCegarLoop]: Abstraction has 90 states and 171 transitions. [2021-07-05 16:07:41,733 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2021-07-05 16:07:41,733 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 171 transitions. [2021-07-05 16:07:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 16:07:41,734 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 16:07:41,734 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 16:07:41,734 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-05 16:07:41,734 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 16:07:41,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 16:07:41,734 INFO L82 PathProgramCache]: Analyzing trace with hash 2122754109, now seen corresponding path program 2 times [2021-07-05 16:07:41,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 16:07:41,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056738696] [2021-07-05 16:07:41,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 16:07:41,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 16:07:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 16:07:41,773 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 16:07:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 16:07:41,800 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 16:07:41,828 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-05 16:07:41,829 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-05 16:07:41,829 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-05 16:07:41,829 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 16:07:41,830 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION was UNSAFE (6/8) [2021-07-05 16:07:41,831 INFO L224 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-05 16:07:41,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 04:07:41 BasicIcfg [2021-07-05 16:07:41,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 16:07:41,883 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 16:07:41,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 16:07:41,883 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 16:07:41,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 04:03:28" (3/4) ... [2021-07-05 16:07:41,884 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-05 16:07:41,923 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 16:07:41,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 16:07:41,924 INFO L168 Benchmark]: Toolchain (without parser) took 254441.79 ms. Allocated memory was 58.7 MB in the beginning and 188.7 MB in the end (delta: 130.0 MB). Free memory was 34.4 MB in the beginning and 105.5 MB in the end (delta: -71.0 MB). Peak memory consumption was 59.9 MB. Max. memory is 16.1 GB. [2021-07-05 16:07:41,924 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory is still 39.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 16:07:41,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.82 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 34.2 MB in the beginning and 38.5 MB in the end (delta: -4.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. [2021-07-05 16:07:41,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.95 ms. Allocated memory is still 81.8 MB. Free memory was 38.5 MB in the beginning and 35.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 16:07:41,924 INFO L168 Benchmark]: Boogie Preprocessor took 43.04 ms. Allocated memory is still 81.8 MB. Free memory was 35.4 MB in the beginning and 32.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-05 16:07:41,924 INFO L168 Benchmark]: RCFGBuilder took 583.31 ms. Allocated memory was 81.8 MB in the beginning and 107.0 MB in the end (delta: 25.2 MB). Free memory was 32.7 MB in the beginning and 70.7 MB in the end (delta: -37.9 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2021-07-05 16:07:41,925 INFO L168 Benchmark]: TraceAbstraction took 253015.56 ms. Allocated memory was 107.0 MB in the beginning and 188.7 MB in the end (delta: 81.8 MB). Free memory was 70.2 MB in the beginning and 113.8 MB in the end (delta: -43.6 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2021-07-05 16:07:41,925 INFO L168 Benchmark]: Witness Printer took 40.63 ms. Allocated memory is still 188.7 MB. Free memory was 113.8 MB in the beginning and 105.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-05 16:07:41,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory is still 39.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 701.82 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 34.2 MB in the beginning and 38.5 MB in the end (delta: -4.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.95 ms. Allocated memory is still 81.8 MB. Free memory was 38.5 MB in the beginning and 35.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.04 ms. Allocated memory is still 81.8 MB. Free memory was 35.4 MB in the beginning and 32.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 583.31 ms. Allocated memory was 81.8 MB in the beginning and 107.0 MB in the end (delta: 25.2 MB). Free memory was 32.7 MB in the beginning and 70.7 MB in the end (delta: -37.9 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 253015.56 ms. Allocated memory was 107.0 MB in the beginning and 188.7 MB in the end (delta: 81.8 MB). Free memory was 70.2 MB in the beginning and 113.8 MB in the end (delta: -43.6 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. * Witness Printer took 40.63 ms. Allocated memory is still 188.7 MB. Free memory was 113.8 MB in the beginning and 105.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45820.3ms, 158 PlacesBefore, 36 PlacesAfterwards, 162 TransitionsBefore, 34 TransitionsAfterwards, 1926 CoEnabledTransitionPairs, 7 FixpointIterations, 100 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 17 ConcurrentYvCompositions, 6 ChoiceCompositions, 187 TotalNumberOfCompositions, 3726 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1813, positive: 1665, positive conditional: 0, positive unconditional: 1665, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1289, positive: 1244, positive conditional: 0, positive unconditional: 1244, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1289, positive: 1244, positive conditional: 0, positive unconditional: 1244, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , SemanticIndependenceRelation.Query Time [ms]: [ total: 32599, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 848, negative conditional: 0, negative unconditional: 848, unknown: 31751, unknown conditional: 0, unknown unconditional: 31751] ], Cache Queries: [ total: 1813, positive: 421, positive conditional: 0, positive unconditional: 421, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 1289, unknown conditional: 0, unknown unconditional: 1289] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37499.4ms, 158 PlacesBefore, 36 PlacesAfterwards, 162 TransitionsBefore, 34 TransitionsAfterwards, 1926 CoEnabledTransitionPairs, 8 FixpointIterations, 103 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 19 ConcurrentYvCompositions, 6 ChoiceCompositions, 188 TotalNumberOfCompositions, 3913 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1738, positive: 1561, positive conditional: 0, positive unconditional: 1561, negative: 177, negative conditional: 0, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1239, positive: 1200, positive conditional: 0, positive unconditional: 1200, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1239, positive: 1200, positive conditional: 0, positive unconditional: 1200, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22954, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 292, negative conditional: 0, negative unconditional: 292, unknown: 22662, unknown conditional: 0, unknown unconditional: 22662] ], Cache Queries: [ total: 1738, positive: 361, positive conditional: 0, positive unconditional: 361, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 1239, unknown conditional: 0, unknown unconditional: 1239] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47588.8ms, 158 PlacesBefore, 37 PlacesAfterwards, 162 TransitionsBefore, 36 TransitionsAfterwards, 1926 CoEnabledTransitionPairs, 7 FixpointIterations, 97 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 181 TotalNumberOfCompositions, 3582 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1773, positive: 1625, positive conditional: 0, positive unconditional: 1625, negative: 148, negative conditional: 0, negative unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1261, positive: 1218, positive conditional: 0, positive unconditional: 1218, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1261, positive: 1218, positive conditional: 0, positive unconditional: 1218, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , SemanticIndependenceRelation.Query Time [ms]: [ total: 33676, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 505, negative conditional: 0, negative unconditional: 505, unknown: 33170, unknown conditional: 0, unknown unconditional: 33170] ], Cache Queries: [ total: 1773, positive: 407, positive conditional: 0, positive unconditional: 407, negative: 105, negative conditional: 0, negative unconditional: 105, unknown: 1261, unknown conditional: 0, unknown unconditional: 1261] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39980.0ms, 158 PlacesBefore, 36 PlacesAfterwards, 162 TransitionsBefore, 34 TransitionsAfterwards, 1926 CoEnabledTransitionPairs, 7 FixpointIterations, 96 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 15 ConcurrentYvCompositions, 6 ChoiceCompositions, 183 TotalNumberOfCompositions, 3606 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1825, positive: 1671, positive conditional: 0, positive unconditional: 1671, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1293, positive: 1245, positive conditional: 0, positive unconditional: 1245, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1293, positive: 1243, positive conditional: 0, positive unconditional: 1243, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , SemanticIndependenceRelation.Query Time [ms]: [ total: 25009, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 483, negative conditional: 0, negative unconditional: 483, unknown: 24480, unknown conditional: 0, unknown unconditional: 24480] ], Cache Queries: [ total: 1825, positive: 426, positive conditional: 0, positive unconditional: 426, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 1293, unknown conditional: 0, unknown unconditional: 1293] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54558.8ms, 158 PlacesBefore, 37 PlacesAfterwards, 162 TransitionsBefore, 36 TransitionsAfterwards, 1926 CoEnabledTransitionPairs, 7 FixpointIterations, 97 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 13 ConcurrentYvCompositions, 5 ChoiceCompositions, 180 TotalNumberOfCompositions, 3784 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1813, positive: 1661, positive conditional: 0, positive unconditional: 1661, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1290, positive: 1241, positive conditional: 0, positive unconditional: 1241, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1290, positive: 1241, positive conditional: 0, positive unconditional: 1241, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41924, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 934, negative conditional: 0, negative unconditional: 934, unknown: 40989, unknown conditional: 0, unknown unconditional: 40989] ], Cache Queries: [ total: 1813, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 1290, unknown conditional: 0, unknown unconditional: 1290] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19916.7ms, 158 PlacesBefore, 37 PlacesAfterwards, 162 TransitionsBefore, 36 TransitionsAfterwards, 1926 CoEnabledTransitionPairs, 9 FixpointIterations, 104 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 15 ConcurrentYvCompositions, 5 ChoiceCompositions, 189 TotalNumberOfCompositions, 4478 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2174, positive: 1976, positive conditional: 0, positive unconditional: 1976, negative: 198, negative conditional: 0, negative unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1309, positive: 1268, positive conditional: 0, positive unconditional: 1268, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1309, positive: 1268, positive conditional: 0, positive unconditional: 1268, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6795, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 325, negative conditional: 0, negative unconditional: 325, unknown: 6470, unknown conditional: 0, unknown unconditional: 6470] ], Cache Queries: [ total: 2174, positive: 708, positive conditional: 0, positive unconditional: 708, negative: 157, negative conditional: 0, negative unconditional: 157, unknown: 1309, unknown conditional: 0, unknown unconditional: 1309] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1675]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1675]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1675]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1675]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1675]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1688] 0 struct device *my_dev; [L1727] 0 return 0; [L1733] 0 int ret = my_drv_init(); [L1734] COND TRUE 0 ret==0 [L1735] 0 int probe_ret; [L1736] 0 struct my_data data; [L1705] 0 data->shared.a = 0 [L1706] 0 data->shared.b = 0 [L1707] 0 data->shared.a [L1675] COND FALSE 0 !(!expression) [L1708] 0 data->shared.b [L1675] COND FALSE 0 !(!expression) [L1709] 0 int res = __VERIFIER_nondet_int(); [L1710] COND FALSE 0 !(\read(res)) [L1712] 0 my_dev = &data->dev [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={8:24}, t1={9:0}, t2={7:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={8:24}, t1={9:0}, t2={7:0}] [L1715] 0 return 0; [L1737] 0 probe_ret = my_drv_probe(&data) VAL [arg={0:0}, my_dev={8:24}, t1={9:0}, t2={7:0}] [L1690] 2 struct my_data *data; [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 2 data->shared.a = 1 VAL [__mptr={8:24}, arg={0:0}, arg={0:0}, data={8:0}, my_dev={8:24}, t1={9:0}, t2={7:0}] [L1696] EXPR 2 data->shared.b [L1696] 2 int lb = data->shared.b; [L1738] COND TRUE 0 probe_ret==0 [L1721] 0 void *status; [L1722] 0 \read(t1) VAL [__mptr={8:24}, arg={0:0}, arg={0:0}, data={8:0}, lb=0, my_dev={8:24}, t1={9:0}, t2={7:0}] [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 1 data->shared.a = 1 VAL [__mptr={8:24}, arg={0:0}, arg={0:0}, data={8:0}, lb=0, my_dev={8:24}, t1={9:0}, t2={7:0}] [L1696] EXPR 1 data->shared.b [L1696] 1 int lb = data->shared.b; [L1699] 1 data->shared.b = lb + 1 [L1701] 1 return 0; [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={8:24}, arg={0:0}, arg={0:0}, data={8:0}, lb=0, my_dev={8:24}, t1={9:0}, t2={7:0}] [L1723] 0 \read(t2) VAL [\result={0:0}, __mptr={8:24}, arg={0:0}, arg={0:0}, data={8:0}, lb=0, my_dev={8:24}, t1={9:0}, t2={7:0}] [L1699] 2 data->shared.b = lb + 1 [L1701] 2 return 0; [L1723] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={8:24}, arg={0:0}, arg={0:0}, data={8:0}, lb=0, my_dev={8:24}, t1={9:0}, t2={7:0}] [L1740] 0 data.shared.a [L1675] COND FALSE 0 !(!expression) [L1741] 0 data.shared.b [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\result={0:0}, __mptr={8:24}, arg={0:0}, arg={0:0}, data={8:0}, lb=0, my_dev={8:24}, t1={9:0}, t2={7:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 4 procedures, 164 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 46123.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 11.5ms, AutomataDifference: 43.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 45877.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 29 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.5ms SsaConstructionTime, 14.0ms SatisfiabilityAnalysisTime, 50.9ms InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 4 procedures, 164 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 37569.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.7ms, AutomataDifference: 5.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 37510.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 29 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.1ms SsaConstructionTime, 6.7ms SatisfiabilityAnalysisTime, 13.0ms InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 4 procedures, 164 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 47856.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 1.4ms, AutomataDifference: 94.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 47594.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 43 SDtfs, 11 SDslu, 17 SDs, 0 SdLazy, 35 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 57.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.4ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.2ms SsaConstructionTime, 37.3ms SatisfiabilityAnalysisTime, 84.3ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 4 procedures, 164 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 40129.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 1.4ms, AutomataDifference: 65.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 39985.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 43 SDtfs, 9 SDslu, 16 SDs, 0 SdLazy, 34 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.1ms SsaConstructionTime, 9.8ms SatisfiabilityAnalysisTime, 39.7ms InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 4 procedures, 164 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 59192.5ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 5.7ms, AutomataDifference: 2695.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 54563.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 137 SDtfs, 584 SDslu, 426 SDs, 0 SdLazy, 1463 SolverSat, 319 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1284.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 5 SyntacticMatches, 10 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1985.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=0, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 24.5ms AutomataMinimizationTime, 10 MinimizatonAttempts, 259 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.7ms SsaConstructionTime, 233.9ms SatisfiabilityAnalysisTime, 1562.7ms InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 3187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 4 procedures, 164 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 21974.2ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 2.0ms, AutomataDifference: 1341.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19921.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 55 SDtfs, 121 SDslu, 194 SDs, 0 SdLazy, 871 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 664.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 913.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7.2ms AutomataMinimizationTime, 3 MinimizatonAttempts, 74 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.1ms SsaConstructionTime, 80.8ms SatisfiabilityAnalysisTime, 530.7ms InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-07-05 16:07:42,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...