./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0 --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 cf397912a53dab4d44f4df9c274fc7c69b1023a0a0a29a356bc73a744537daa6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:13:35,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:13:35,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:13:35,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:13:35,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:13:35,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:13:35,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:13:35,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:13:35,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:13:35,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:13:35,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:13:35,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:13:35,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:13:35,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:13:35,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:13:35,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:13:35,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:13:35,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:13:35,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:13:35,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:13:35,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:13:35,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:13:35,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:13:35,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:13:35,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:13:35,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:13:35,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:13:35,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:13:35,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:13:35,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:13:35,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:13:35,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:13:35,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:13:35,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:13:35,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:13:35,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:13:35,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:13:35,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:13:35,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:13:35,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:13:35,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:13:35,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 15:13:35,470 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:13:35,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:13:35,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:13:35,472 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:13:35,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:13:35,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:13:35,484 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:13:35,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:13:35,485 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:13:35,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:13:35,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:13:35,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:13:35,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:13:35,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:13:35,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:13:35,489 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:13:35,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:13:35,489 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:13:35,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:13:35,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:13:35,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:13:35,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:13:35,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:13:35,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:13:35,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:13:35,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:13:35,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:13:35,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:13:35,494 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:13:35,496 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:13:35,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:13:35,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:13:35,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf397912a53dab4d44f4df9c274fc7c69b1023a0a0a29a356bc73a744537daa6 [2021-11-22 15:13:35,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:13:35,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:13:35,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:13:35,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:13:35,964 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:13:35,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c [2021-11-22 15:13:36,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/data/02a960573/7d0e5ec54af043cf908595cc970e938e/FLAG546642a2f [2021-11-22 15:13:36,890 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:13:36,890 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c [2021-11-22 15:13:36,937 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/data/02a960573/7d0e5ec54af043cf908595cc970e938e/FLAG546642a2f [2021-11-22 15:13:37,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/data/02a960573/7d0e5ec54af043cf908595cc970e938e [2021-11-22 15:13:37,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:13:37,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:13:37,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:13:37,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:13:37,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:13:37,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:13:37" (1/1) ... [2021-11-22 15:13:37,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca5f4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:37, skipping insertion in model container [2021-11-22 15:13:37,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:13:37" (1/1) ... [2021-11-22 15:13:37,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:13:37,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:13:37,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c[18883,18896] [2021-11-22 15:13:38,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:13:38,020 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:13:38,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c[18883,18896] [2021-11-22 15:13:38,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:13:38,238 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:13:38,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38 WrapperNode [2021-11-22 15:13:38,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:13:38,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:13:38,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:13:38,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:13:38,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38" (1/1) ... [2021-11-22 15:13:38,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38" (1/1) ... [2021-11-22 15:13:43,969 INFO L137 Inliner]: procedures = 151, calls = 283, calls flagged for inlining = 188, calls inlined = 17933, statements flattened = 254022 [2021-11-22 15:13:43,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:13:43,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:13:43,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:13:43,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:13:43,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38" (1/1) ... [2021-11-22 15:13:43,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38" (1/1) ... [2021-11-22 15:13:45,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38" (1/1) ... [2021-11-22 15:13:45,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38" (1/1) ... [2021-11-22 15:13:47,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38" (1/1) ... [2021-11-22 15:13:48,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38" (1/1) ... [2021-11-22 15:13:49,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38" (1/1) ... [2021-11-22 15:13:50,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:13:50,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:13:50,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:13:50,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:13:50,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38" (1/1) ... [2021-11-22 15:13:50,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:13:50,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:13:50,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:13:50,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:13:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-11-22 15:13:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:13:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:13:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:13:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:13:50,520 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:13:50,522 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:14:42,457 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:14:42,649 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:14:42,650 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 15:14:42,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:14:42 BoogieIcfgContainer [2021-11-22 15:14:42,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:14:42,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:14:42,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:14:42,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:14:42,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:13:37" (1/3) ... [2021-11-22 15:14:42,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60149b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:14:42, skipping insertion in model container [2021-11-22 15:14:42,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:13:38" (2/3) ... [2021-11-22 15:14:42,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60149b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:14:42, skipping insertion in model container [2021-11-22 15:14:42,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:14:42" (3/3) ... [2021-11-22 15:14:42,709 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec4_productSimulator.cil.c [2021-11-22 15:14:42,716 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:14:42,717 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2021-11-22 15:14:42,940 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:14:42,947 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:14:42,948 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-11-22 15:14:43,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 39286 states, 39253 states have (on average 1.5398823019896568) internal successors, (60445), 39285 states have internal predecessors, (60445), 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) [2021-11-22 15:14:43,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-22 15:14:43,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:43,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:43,650 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:14:43,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:43,663 INFO L85 PathProgramCache]: Analyzing trace with hash 213070169, now seen corresponding path program 1 times [2021-11-22 15:14:43,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:43,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259963210] [2021-11-22 15:14:43,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:43,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:44,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:44,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:44,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259963210] [2021-11-22 15:14:44,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259963210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:44,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:44,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 15:14:44,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320179480] [2021-11-22 15:14:44,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:44,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:14:44,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:44,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:14:44,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:14:44,383 INFO L87 Difference]: Start difference. First operand has 39286 states, 39253 states have (on average 1.5398823019896568) internal successors, (60445), 39285 states have internal predecessors, (60445), 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 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2021-11-22 15:14:47,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:47,556 INFO L93 Difference]: Finished difference Result 78523 states and 120826 transitions. [2021-11-22 15:14:47,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 15:14:47,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2021-11-22 15:14:47,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:47,804 INFO L225 Difference]: With dead ends: 78523 [2021-11-22 15:14:47,805 INFO L226 Difference]: Without dead ends: 25094 [2021-11-22 15:14:47,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:14:47,930 INFO L933 BasicCegarLoop]: 60376 mSDtfsCounter, 18 mSDsluCounter, 181119 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 241495 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:47,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 241495 Invalid, 20 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:14:48,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25094 states. [2021-11-22 15:14:48,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25094 to 25094. [2021-11-22 15:14:48,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25094 states, 25062 states have (on average 1.5426941185859069) internal successors, (38663), 25093 states have internal predecessors, (38663), 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) [2021-11-22 15:14:49,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25094 states to 25094 states and 38663 transitions. [2021-11-22 15:14:49,078 INFO L78 Accepts]: Start accepts. Automaton has 25094 states and 38663 transitions. Word has length 54 [2021-11-22 15:14:49,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:49,079 INFO L470 AbstractCegarLoop]: Abstraction has 25094 states and 38663 transitions. [2021-11-22 15:14:49,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2021-11-22 15:14:49,081 INFO L276 IsEmpty]: Start isEmpty. Operand 25094 states and 38663 transitions. [2021-11-22 15:14:49,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-22 15:14:49,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:49,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:49,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:14:49,092 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:14:49,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:49,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1051168148, now seen corresponding path program 1 times [2021-11-22 15:14:49,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:49,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165479952] [2021-11-22 15:14:49,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:49,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:49,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:49,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165479952] [2021-11-22 15:14:49,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165479952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:49,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:49,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:14:49,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316319566] [2021-11-22 15:14:49,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:49,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:14:49,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:49,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:14:49,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:14:49,275 INFO L87 Difference]: Start difference. First operand 25094 states and 38663 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-22 15:14:50,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:50,561 INFO L93 Difference]: Finished difference Result 34068 states and 52562 transitions. [2021-11-22 15:14:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:14:50,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-22 15:14:50,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:50,601 INFO L225 Difference]: With dead ends: 34068 [2021-11-22 15:14:50,601 INFO L226 Difference]: Without dead ends: 8994 [2021-11-22 15:14:50,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:14:50,633 INFO L933 BasicCegarLoop]: 13754 mSDtfsCounter, 13824 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13824 SdHoareTripleChecker+Valid, 13760 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:50,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13824 Valid, 13760 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:14:50,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8994 states. [2021-11-22 15:14:50,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8994 to 8994. [2021-11-22 15:14:50,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8978 states have (on average 1.5414346179550011) internal successors, (13839), 8993 states have internal predecessors, (13839), 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) [2021-11-22 15:14:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 13839 transitions. [2021-11-22 15:14:50,959 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 13839 transitions. Word has length 60 [2021-11-22 15:14:50,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:50,961 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 13839 transitions. [2021-11-22 15:14:50,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-22 15:14:50,962 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 13839 transitions. [2021-11-22 15:14:50,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-22 15:14:50,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:50,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:50,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:14:50,970 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:14:50,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:50,972 INFO L85 PathProgramCache]: Analyzing trace with hash -210300870, now seen corresponding path program 1 times [2021-11-22 15:14:50,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:50,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471615001] [2021-11-22 15:14:50,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:50,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:51,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:51,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:51,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471615001] [2021-11-22 15:14:51,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471615001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:51,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:51,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:14:51,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407535569] [2021-11-22 15:14:51,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:51,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:14:51,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:51,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:14:51,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:14:51,140 INFO L87 Difference]: Start difference. First operand 8994 states and 13839 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-22 15:14:51,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:51,538 INFO L93 Difference]: Finished difference Result 13426 states and 20812 transitions. [2021-11-22 15:14:51,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:14:51,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2021-11-22 15:14:51,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:51,553 INFO L225 Difference]: With dead ends: 13426 [2021-11-22 15:14:51,554 INFO L226 Difference]: Without dead ends: 4454 [2021-11-22 15:14:51,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:14:51,567 INFO L933 BasicCegarLoop]: 6917 mSDtfsCounter, 6935 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6935 SdHoareTripleChecker+Valid, 6937 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:51,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6935 Valid, 6937 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:14:51,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2021-11-22 15:14:51,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2021-11-22 15:14:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4438 states have (on average 1.5678233438485805) internal successors, (6958), 4453 states have internal predecessors, (6958), 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) [2021-11-22 15:14:51,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 6958 transitions. [2021-11-22 15:14:51,737 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 6958 transitions. Word has length 66 [2021-11-22 15:14:51,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:51,738 INFO L470 AbstractCegarLoop]: Abstraction has 4454 states and 6958 transitions. [2021-11-22 15:14:51,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-22 15:14:51,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 6958 transitions. [2021-11-22 15:14:51,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-22 15:14:51,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:51,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:51,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:14:51,742 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:14:51,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:51,746 INFO L85 PathProgramCache]: Analyzing trace with hash 46885584, now seen corresponding path program 1 times [2021-11-22 15:14:51,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:51,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339460545] [2021-11-22 15:14:51,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:51,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:51,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:51,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:51,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339460545] [2021-11-22 15:14:51,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339460545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:51,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:51,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:14:51,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509104176] [2021-11-22 15:14:51,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:51,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:14:51,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:51,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:14:51,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:14:51,881 INFO L87 Difference]: Start difference. First operand 4454 states and 6958 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-22 15:14:52,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:52,125 INFO L93 Difference]: Finished difference Result 8860 states and 13849 transitions. [2021-11-22 15:14:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:14:52,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2021-11-22 15:14:52,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:52,141 INFO L225 Difference]: With dead ends: 8860 [2021-11-22 15:14:52,141 INFO L226 Difference]: Without dead ends: 4445 [2021-11-22 15:14:52,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:14:52,162 INFO L933 BasicCegarLoop]: 6917 mSDtfsCounter, 6897 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6897 SdHoareTripleChecker+Valid, 6940 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:52,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6897 Valid, 6940 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:14:52,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4445 states. [2021-11-22 15:14:52,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4445 to 4439. [2021-11-22 15:14:52,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4439 states, 4423 states have (on average 1.5652272213429799) internal successors, (6923), 4438 states have internal predecessors, (6923), 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) [2021-11-22 15:14:52,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4439 states to 4439 states and 6923 transitions. [2021-11-22 15:14:52,373 INFO L78 Accepts]: Start accepts. Automaton has 4439 states and 6923 transitions. Word has length 67 [2021-11-22 15:14:52,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:52,375 INFO L470 AbstractCegarLoop]: Abstraction has 4439 states and 6923 transitions. [2021-11-22 15:14:52,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-22 15:14:52,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4439 states and 6923 transitions. [2021-11-22 15:14:52,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-22 15:14:52,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:52,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:52,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:14:52,380 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:14:52,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:52,382 INFO L85 PathProgramCache]: Analyzing trace with hash 461783593, now seen corresponding path program 1 times [2021-11-22 15:14:52,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:52,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051960945] [2021-11-22 15:14:52,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:52,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:52,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:52,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051960945] [2021-11-22 15:14:52,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051960945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:52,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:52,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:14:52,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47817592] [2021-11-22 15:14:52,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:52,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:14:52,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:52,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:14:52,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:14:52,515 INFO L87 Difference]: Start difference. First operand 4439 states and 6923 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2021-11-22 15:14:53,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:53,435 INFO L93 Difference]: Finished difference Result 13226 states and 20651 transitions. [2021-11-22 15:14:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:14:53,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 76 [2021-11-22 15:14:53,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:53,462 INFO L225 Difference]: With dead ends: 13226 [2021-11-22 15:14:53,463 INFO L226 Difference]: Without dead ends: 8830 [2021-11-22 15:14:53,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:14:53,477 INFO L933 BasicCegarLoop]: 13776 mSDtfsCounter, 13743 mSDsluCounter, 6949 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13743 SdHoareTripleChecker+Valid, 20725 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:53,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13743 Valid, 20725 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:14:53,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8830 states. [2021-11-22 15:14:53,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8830 to 4438. [2021-11-22 15:14:53,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 4422 states have (on average 1.564676616915423) internal successors, (6919), 4437 states have internal predecessors, (6919), 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) [2021-11-22 15:14:53,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 6919 transitions. [2021-11-22 15:14:53,772 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 6919 transitions. Word has length 76 [2021-11-22 15:14:53,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:53,773 INFO L470 AbstractCegarLoop]: Abstraction has 4438 states and 6919 transitions. [2021-11-22 15:14:53,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2021-11-22 15:14:53,780 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 6919 transitions. [2021-11-22 15:14:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-22 15:14:53,782 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:53,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:53,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:14:53,783 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:14:53,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:53,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1487890241, now seen corresponding path program 1 times [2021-11-22 15:14:53,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:53,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940529635] [2021-11-22 15:14:53,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:53,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:53,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:53,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:53,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940529635] [2021-11-22 15:14:53,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940529635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:53,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:53,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 15:14:53,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134686540] [2021-11-22 15:14:53,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:53,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:14:53,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:53,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:14:53,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:14:53,928 INFO L87 Difference]: Start difference. First operand 4438 states and 6919 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2021-11-22 15:14:54,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:54,738 INFO L93 Difference]: Finished difference Result 13205 states and 20609 transitions. [2021-11-22 15:14:54,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 15:14:54,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 77 [2021-11-22 15:14:54,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:54,764 INFO L225 Difference]: With dead ends: 13205 [2021-11-22 15:14:54,765 INFO L226 Difference]: Without dead ends: 8815 [2021-11-22 15:14:54,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-22 15:14:54,775 INFO L933 BasicCegarLoop]: 13718 mSDtfsCounter, 13740 mSDsluCounter, 20609 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13740 SdHoareTripleChecker+Valid, 34327 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:54,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13740 Valid, 34327 Invalid, 91 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:14:54,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8815 states. [2021-11-22 15:14:55,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8815 to 4438. [2021-11-22 15:14:55,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 4422 states have (on average 1.5644504748982362) internal successors, (6918), 4437 states have internal predecessors, (6918), 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) [2021-11-22 15:14:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 6918 transitions. [2021-11-22 15:14:55,201 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 6918 transitions. Word has length 77 [2021-11-22 15:14:55,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:55,201 INFO L470 AbstractCegarLoop]: Abstraction has 4438 states and 6918 transitions. [2021-11-22 15:14:55,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2021-11-22 15:14:55,202 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 6918 transitions. [2021-11-22 15:14:55,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-22 15:14:55,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:55,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:55,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 15:14:55,205 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:14:55,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:55,206 INFO L85 PathProgramCache]: Analyzing trace with hash -836949697, now seen corresponding path program 1 times [2021-11-22 15:14:55,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:55,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617655334] [2021-11-22 15:14:55,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:55,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:55,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:55,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:55,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617655334] [2021-11-22 15:14:55,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617655334] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:55,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:55,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:14:55,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802789098] [2021-11-22 15:14:55,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:55,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:14:55,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:55,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:14:55,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:14:55,278 INFO L87 Difference]: Start difference. First operand 4438 states and 6918 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2021-11-22 15:14:55,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:55,641 INFO L93 Difference]: Finished difference Result 8830 states and 13779 transitions. [2021-11-22 15:14:55,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:14:55,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 78 [2021-11-22 15:14:55,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:55,654 INFO L225 Difference]: With dead ends: 8830 [2021-11-22 15:14:55,655 INFO L226 Difference]: Without dead ends: 4447 [2021-11-22 15:14:55,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:14:55,663 INFO L933 BasicCegarLoop]: 6923 mSDtfsCounter, 13716 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13716 SdHoareTripleChecker+Valid, 7048 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:55,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13716 Valid, 7048 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:14:55,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4447 states. [2021-11-22 15:14:55,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4447 to 4438. [2021-11-22 15:14:55,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 4422 states have (on average 1.5637720488466758) internal successors, (6915), 4437 states have internal predecessors, (6915), 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) [2021-11-22 15:14:55,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 6915 transitions. [2021-11-22 15:14:55,948 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 6915 transitions. Word has length 78 [2021-11-22 15:14:55,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:55,949 INFO L470 AbstractCegarLoop]: Abstraction has 4438 states and 6915 transitions. [2021-11-22 15:14:55,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2021-11-22 15:14:55,949 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 6915 transitions. [2021-11-22 15:14:55,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-22 15:14:55,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:55,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:55,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 15:14:55,957 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:14:55,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:55,958 INFO L85 PathProgramCache]: Analyzing trace with hash 827195834, now seen corresponding path program 1 times [2021-11-22 15:14:55,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:55,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157808301] [2021-11-22 15:14:55,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:55,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:56,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:56,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:56,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157808301] [2021-11-22 15:14:56,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157808301] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:56,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:56,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 15:14:56,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151199007] [2021-11-22 15:14:56,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:56,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:14:56,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:56,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:14:56,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:14:56,055 INFO L87 Difference]: Start difference. First operand 4438 states and 6915 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2021-11-22 15:14:56,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:56,997 INFO L93 Difference]: Finished difference Result 13189 states and 20583 transitions. [2021-11-22 15:14:56,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 15:14:56,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2021-11-22 15:14:56,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:57,023 INFO L225 Difference]: With dead ends: 13189 [2021-11-22 15:14:57,024 INFO L226 Difference]: Without dead ends: 8811 [2021-11-22 15:14:57,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:14:57,032 INFO L933 BasicCegarLoop]: 6904 mSDtfsCounter, 34172 mSDsluCounter, 6973 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34172 SdHoareTripleChecker+Valid, 13877 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:57,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34172 Valid, 13877 Invalid, 76 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:14:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8811 states. [2021-11-22 15:14:57,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8811 to 4438. [2021-11-22 15:14:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 4422 states have (on average 1.563545906829489) internal successors, (6914), 4437 states have internal predecessors, (6914), 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) [2021-11-22 15:14:57,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 6914 transitions. [2021-11-22 15:14:57,375 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 6914 transitions. Word has length 80 [2021-11-22 15:14:57,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:57,376 INFO L470 AbstractCegarLoop]: Abstraction has 4438 states and 6914 transitions. [2021-11-22 15:14:57,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2021-11-22 15:14:57,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 6914 transitions. [2021-11-22 15:14:57,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 15:14:57,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:57,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:57,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 15:14:57,379 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:14:57,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:57,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2102180505, now seen corresponding path program 1 times [2021-11-22 15:14:57,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:57,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188334650] [2021-11-22 15:14:57,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:57,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:57,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:57,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:57,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188334650] [2021-11-22 15:14:57,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188334650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:57,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:57,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 15:14:57,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55154554] [2021-11-22 15:14:57,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:57,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:14:57,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:57,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:14:57,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:14:57,475 INFO L87 Difference]: Start difference. First operand 4438 states and 6914 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2021-11-22 15:14:58,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:58,423 INFO L93 Difference]: Finished difference Result 13198 states and 20591 transitions. [2021-11-22 15:14:58,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:14:58,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 81 [2021-11-22 15:14:58,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:58,453 INFO L225 Difference]: With dead ends: 13198 [2021-11-22 15:14:58,453 INFO L226 Difference]: Without dead ends: 8820 [2021-11-22 15:14:58,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:14:58,463 INFO L933 BasicCegarLoop]: 6900 mSDtfsCounter, 34181 mSDsluCounter, 6979 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34181 SdHoareTripleChecker+Valid, 13879 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:58,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34181 Valid, 13879 Invalid, 71 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:14:58,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8820 states. [2021-11-22 15:14:58,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8820 to 4438. [2021-11-22 15:14:58,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 4422 states have (on average 1.563319764812302) internal successors, (6913), 4437 states have internal predecessors, (6913), 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) [2021-11-22 15:14:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 6913 transitions. [2021-11-22 15:14:58,804 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 6913 transitions. Word has length 81 [2021-11-22 15:14:58,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:58,805 INFO L470 AbstractCegarLoop]: Abstraction has 4438 states and 6913 transitions. [2021-11-22 15:14:58,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2021-11-22 15:14:58,805 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 6913 transitions. [2021-11-22 15:14:58,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-22 15:14:58,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:58,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:58,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 15:14:58,809 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:14:58,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:58,809 INFO L85 PathProgramCache]: Analyzing trace with hash 431032031, now seen corresponding path program 1 times [2021-11-22 15:14:58,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:58,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680873620] [2021-11-22 15:14:58,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:58,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:58,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:58,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680873620] [2021-11-22 15:14:58,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680873620] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:58,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:58,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:14:58,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808568483] [2021-11-22 15:14:58,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:58,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:14:58,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:58,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:14:58,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:14:58,873 INFO L87 Difference]: Start difference. First operand 4438 states and 6913 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-22 15:14:59,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:14:59,224 INFO L93 Difference]: Finished difference Result 8522 states and 13238 transitions. [2021-11-22 15:14:59,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:14:59,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2021-11-22 15:14:59,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:14:59,239 INFO L225 Difference]: With dead ends: 8522 [2021-11-22 15:14:59,239 INFO L226 Difference]: Without dead ends: 4441 [2021-11-22 15:14:59,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:14:59,247 INFO L933 BasicCegarLoop]: 6911 mSDtfsCounter, 1 mSDsluCounter, 6909 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13820 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:14:59,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 13820 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:14:59,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states. [2021-11-22 15:14:59,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 4440. [2021-11-22 15:14:59,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4440 states, 4424 states have (on average 1.5630650994575046) internal successors, (6915), 4439 states have internal predecessors, (6915), 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) [2021-11-22 15:14:59,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4440 states to 4440 states and 6915 transitions. [2021-11-22 15:14:59,672 INFO L78 Accepts]: Start accepts. Automaton has 4440 states and 6915 transitions. Word has length 82 [2021-11-22 15:14:59,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:14:59,673 INFO L470 AbstractCegarLoop]: Abstraction has 4440 states and 6915 transitions. [2021-11-22 15:14:59,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-22 15:14:59,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4440 states and 6915 transitions. [2021-11-22 15:14:59,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-22 15:14:59,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:14:59,676 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:14:59,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-22 15:14:59,678 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:14:59,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:14:59,678 INFO L85 PathProgramCache]: Analyzing trace with hash 609992298, now seen corresponding path program 1 times [2021-11-22 15:14:59,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:14:59,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311905198] [2021-11-22 15:14:59,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:14:59,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:14:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:14:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:14:59,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:14:59,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311905198] [2021-11-22 15:14:59,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311905198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:14:59,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:14:59,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:14:59,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262502216] [2021-11-22 15:14:59,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:14:59,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:14:59,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:14:59,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:14:59,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:14:59,763 INFO L87 Difference]: Start difference. First operand 4440 states and 6915 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2021-11-22 15:15:00,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:00,318 INFO L93 Difference]: Finished difference Result 13134 states and 20491 transitions. [2021-11-22 15:15:00,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:15:00,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2021-11-22 15:15:00,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:00,348 INFO L225 Difference]: With dead ends: 13134 [2021-11-22 15:15:00,349 INFO L226 Difference]: Without dead ends: 8760 [2021-11-22 15:15:00,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:00,360 INFO L933 BasicCegarLoop]: 6912 mSDtfsCounter, 6832 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6832 SdHoareTripleChecker+Valid, 13724 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:00,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6832 Valid, 13724 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:15:00,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8760 states. [2021-11-22 15:15:00,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8760 to 4679. [2021-11-22 15:15:00,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4679 states, 4663 states have (on average 1.5723782972335407) internal successors, (7332), 4678 states have internal predecessors, (7332), 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) [2021-11-22 15:15:00,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4679 states to 4679 states and 7332 transitions. [2021-11-22 15:15:00,873 INFO L78 Accepts]: Start accepts. Automaton has 4679 states and 7332 transitions. Word has length 90 [2021-11-22 15:15:00,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:00,874 INFO L470 AbstractCegarLoop]: Abstraction has 4679 states and 7332 transitions. [2021-11-22 15:15:00,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2021-11-22 15:15:00,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4679 states and 7332 transitions. [2021-11-22 15:15:00,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 15:15:00,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:00,879 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:00,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 15:15:00,879 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:15:00,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:00,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1998419618, now seen corresponding path program 1 times [2021-11-22 15:15:00,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:00,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383101723] [2021-11-22 15:15:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:00,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:00,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:00,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:15:00,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383101723] [2021-11-22 15:15:00,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383101723] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 15:15:00,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916512391] [2021-11-22 15:15:00,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:00,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:15:00,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:15:00,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:15:00,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 15:15:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:01,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 15:15:01,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:15:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:01,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:15:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:01,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916512391] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 15:15:01,888 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 15:15:01,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-22 15:15:01,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157433424] [2021-11-22 15:15:01,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 15:15:01,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 15:15:01,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:15:01,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 15:15:01,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:15:01,891 INFO L87 Difference]: Start difference. First operand 4679 states and 7332 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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) [2021-11-22 15:15:03,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:03,634 INFO L93 Difference]: Finished difference Result 22362 states and 35000 transitions. [2021-11-22 15:15:03,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 15:15:03,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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 91 [2021-11-22 15:15:03,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:03,675 INFO L225 Difference]: With dead ends: 22362 [2021-11-22 15:15:03,676 INFO L226 Difference]: Without dead ends: 18281 [2021-11-22 15:15:03,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:15:03,687 INFO L933 BasicCegarLoop]: 6911 mSDtfsCounter, 27322 mSDsluCounter, 27486 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27322 SdHoareTripleChecker+Valid, 34397 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:03,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27322 Valid, 34397 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:15:03,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18281 states. [2021-11-22 15:15:04,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18281 to 6038. [2021-11-22 15:15:04,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6038 states, 6022 states have (on average 1.6124211225506477) internal successors, (9710), 6037 states have internal predecessors, (9710), 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) [2021-11-22 15:15:04,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6038 states to 6038 states and 9710 transitions. [2021-11-22 15:15:04,368 INFO L78 Accepts]: Start accepts. Automaton has 6038 states and 9710 transitions. Word has length 91 [2021-11-22 15:15:04,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:04,368 INFO L470 AbstractCegarLoop]: Abstraction has 6038 states and 9710 transitions. [2021-11-22 15:15:04,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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) [2021-11-22 15:15:04,369 INFO L276 IsEmpty]: Start isEmpty. Operand 6038 states and 9710 transitions. [2021-11-22 15:15:04,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-22 15:15:04,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:04,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:04,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:15:04,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38193ec0-f470-4f70-a0d2-d629d33badc7/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-22 15:15:04,589 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:15:04,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:04,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1673426890, now seen corresponding path program 1 times [2021-11-22 15:15:04,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:04,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897404301] [2021-11-22 15:15:04,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:04,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:04,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:15:04,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897404301] [2021-11-22 15:15:04,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897404301] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:04,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:04,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:15:04,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125834159] [2021-11-22 15:15:04,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:04,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:15:04,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:15:04,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:15:04,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:04,689 INFO L87 Difference]: Start difference. First operand 6038 states and 9710 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-22 15:15:05,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:05,757 INFO L93 Difference]: Finished difference Result 17334 states and 27845 transitions. [2021-11-22 15:15:05,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:15:05,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2021-11-22 15:15:05,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:05,782 INFO L225 Difference]: With dead ends: 17334 [2021-11-22 15:15:05,782 INFO L226 Difference]: Without dead ends: 11440 [2021-11-22 15:15:05,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:05,793 INFO L933 BasicCegarLoop]: 6913 mSDtfsCounter, 6830 mSDsluCounter, 6897 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6830 SdHoareTripleChecker+Valid, 13810 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:05,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6830 Valid, 13810 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:15:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11440 states. [2021-11-22 15:15:06,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11440 to 7359. [2021-11-22 15:15:06,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7359 states, 7343 states have (on average 1.6369331335966226) internal successors, (12020), 7358 states have internal predecessors, (12020), 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) [2021-11-22 15:15:06,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7359 states to 7359 states and 12020 transitions. [2021-11-22 15:15:06,368 INFO L78 Accepts]: Start accepts. Automaton has 7359 states and 12020 transitions. Word has length 95 [2021-11-22 15:15:06,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:06,369 INFO L470 AbstractCegarLoop]: Abstraction has 7359 states and 12020 transitions. [2021-11-22 15:15:06,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-22 15:15:06,369 INFO L276 IsEmpty]: Start isEmpty. Operand 7359 states and 12020 transitions. [2021-11-22 15:15:06,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-22 15:15:06,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:06,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:06,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 15:15:06,377 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:15:06,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:06,378 INFO L85 PathProgramCache]: Analyzing trace with hash 417942409, now seen corresponding path program 1 times [2021-11-22 15:15:06,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:06,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48304151] [2021-11-22 15:15:06,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:06,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:06,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:06,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:15:06,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48304151] [2021-11-22 15:15:06,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48304151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:06,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:06,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:15:06,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910081197] [2021-11-22 15:15:06,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:06,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:15:06,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:15:06,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:15:06,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:06,442 INFO L87 Difference]: Start difference. First operand 7359 states and 12020 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-22 15:15:07,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:07,289 INFO L93 Difference]: Finished difference Result 20657 states and 33676 transitions. [2021-11-22 15:15:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:15:07,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2021-11-22 15:15:07,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:07,316 INFO L225 Difference]: With dead ends: 20657 [2021-11-22 15:15:07,316 INFO L226 Difference]: Without dead ends: 13542 [2021-11-22 15:15:07,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:07,328 INFO L933 BasicCegarLoop]: 6912 mSDtfsCounter, 6828 mSDsluCounter, 6898 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6828 SdHoareTripleChecker+Valid, 13810 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:07,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6828 Valid, 13810 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:15:07,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13542 states. [2021-11-22 15:15:08,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13542 to 9461. [2021-11-22 15:15:08,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9461 states, 9445 states have (on average 1.6623610375860243) internal successors, (15701), 9460 states have internal predecessors, (15701), 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) [2021-11-22 15:15:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9461 states to 9461 states and 15701 transitions. [2021-11-22 15:15:08,186 INFO L78 Accepts]: Start accepts. Automaton has 9461 states and 15701 transitions. Word has length 96 [2021-11-22 15:15:08,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:08,187 INFO L470 AbstractCegarLoop]: Abstraction has 9461 states and 15701 transitions. [2021-11-22 15:15:08,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-11-22 15:15:08,187 INFO L276 IsEmpty]: Start isEmpty. Operand 9461 states and 15701 transitions. [2021-11-22 15:15:08,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-22 15:15:08,196 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:08,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:08,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 15:15:08,197 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:15:08,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:08,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1932743375, now seen corresponding path program 1 times [2021-11-22 15:15:08,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:08,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673401271] [2021-11-22 15:15:08,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:08,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:08,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:08,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:15:08,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673401271] [2021-11-22 15:15:08,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673401271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:08,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:08,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:15:08,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741259859] [2021-11-22 15:15:08,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:08,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:15:08,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:15:08,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:15:08,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:08,263 INFO L87 Difference]: Start difference. First operand 9461 states and 15701 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-22 15:15:09,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:09,509 INFO L93 Difference]: Finished difference Result 25401 states and 41966 transitions. [2021-11-22 15:15:09,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:15:09,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2021-11-22 15:15:09,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:09,532 INFO L225 Difference]: With dead ends: 25401 [2021-11-22 15:15:09,533 INFO L226 Difference]: Without dead ends: 16573 [2021-11-22 15:15:09,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:09,544 INFO L933 BasicCegarLoop]: 6912 mSDtfsCounter, 6826 mSDsluCounter, 6850 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6826 SdHoareTripleChecker+Valid, 13762 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:09,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6826 Valid, 13762 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:15:09,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16573 states. [2021-11-22 15:15:10,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16573 to 12492. [2021-11-22 15:15:10,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12492 states, 12476 states have (on average 1.6815485732606605) internal successors, (20979), 12491 states have internal predecessors, (20979), 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) [2021-11-22 15:15:10,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12492 states to 12492 states and 20979 transitions. [2021-11-22 15:15:10,281 INFO L78 Accepts]: Start accepts. Automaton has 12492 states and 20979 transitions. Word has length 97 [2021-11-22 15:15:10,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:10,282 INFO L470 AbstractCegarLoop]: Abstraction has 12492 states and 20979 transitions. [2021-11-22 15:15:10,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-22 15:15:10,282 INFO L276 IsEmpty]: Start isEmpty. Operand 12492 states and 20979 transitions. [2021-11-22 15:15:10,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-22 15:15:10,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:10,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:10,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 15:15:10,292 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:15:10,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:10,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1781045008, now seen corresponding path program 1 times [2021-11-22 15:15:10,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:10,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11303892] [2021-11-22 15:15:10,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:10,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:10,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:10,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:15:10,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11303892] [2021-11-22 15:15:10,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11303892] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:10,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:10,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:15:10,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967122108] [2021-11-22 15:15:10,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:10,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:15:10,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:15:10,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:15:10,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:10,361 INFO L87 Difference]: Start difference. First operand 12492 states and 20979 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-22 15:15:11,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:11,783 INFO L93 Difference]: Finished difference Result 32587 states and 54488 transitions. [2021-11-22 15:15:11,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:15:11,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2021-11-22 15:15:11,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:11,823 INFO L225 Difference]: With dead ends: 32587 [2021-11-22 15:15:11,824 INFO L226 Difference]: Without dead ends: 21357 [2021-11-22 15:15:11,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:11,840 INFO L933 BasicCegarLoop]: 6912 mSDtfsCounter, 6824 mSDsluCounter, 6850 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6824 SdHoareTripleChecker+Valid, 13762 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:11,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6824 Valid, 13762 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:15:11,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21357 states. [2021-11-22 15:15:12,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21357 to 17276. [2021-11-22 15:15:12,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17276 states, 17260 states have (on average 1.697276940903824) internal successors, (29295), 17275 states have internal predecessors, (29295), 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) [2021-11-22 15:15:13,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17276 states to 17276 states and 29295 transitions. [2021-11-22 15:15:13,035 INFO L78 Accepts]: Start accepts. Automaton has 17276 states and 29295 transitions. Word has length 98 [2021-11-22 15:15:13,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:13,035 INFO L470 AbstractCegarLoop]: Abstraction has 17276 states and 29295 transitions. [2021-11-22 15:15:13,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-22 15:15:13,036 INFO L276 IsEmpty]: Start isEmpty. Operand 17276 states and 29295 transitions. [2021-11-22 15:15:13,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-22 15:15:13,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:13,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:13,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-22 15:15:13,048 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:15:13,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:13,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1727707622, now seen corresponding path program 1 times [2021-11-22 15:15:13,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:13,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335546985] [2021-11-22 15:15:13,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:13,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:13,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:15:13,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335546985] [2021-11-22 15:15:13,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335546985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:13,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:13,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:15:13,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984312937] [2021-11-22 15:15:13,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:13,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:15:13,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:15:13,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:15:13,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:13,122 INFO L87 Difference]: Start difference. First operand 17276 states and 29295 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-11-22 15:15:14,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:14,958 INFO L93 Difference]: Finished difference Result 45560 states and 77150 transitions. [2021-11-22 15:15:14,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:15:14,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2021-11-22 15:15:14,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:15,018 INFO L225 Difference]: With dead ends: 45560 [2021-11-22 15:15:15,018 INFO L226 Difference]: Without dead ends: 30158 [2021-11-22 15:15:15,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:15,047 INFO L933 BasicCegarLoop]: 6912 mSDtfsCounter, 6822 mSDsluCounter, 6897 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6822 SdHoareTripleChecker+Valid, 13809 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:15,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6822 Valid, 13809 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:15:15,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30158 states. [2021-11-22 15:15:16,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30158 to 26077. [2021-11-22 15:15:16,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26077 states, 26061 states have (on average 1.7129427113311078) internal successors, (44641), 26076 states have internal predecessors, (44641), 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) [2021-11-22 15:15:16,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26077 states to 26077 states and 44641 transitions. [2021-11-22 15:15:16,488 INFO L78 Accepts]: Start accepts. Automaton has 26077 states and 44641 transitions. Word has length 99 [2021-11-22 15:15:16,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:15:16,488 INFO L470 AbstractCegarLoop]: Abstraction has 26077 states and 44641 transitions. [2021-11-22 15:15:16,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-11-22 15:15:16,489 INFO L276 IsEmpty]: Start isEmpty. Operand 26077 states and 44641 transitions. [2021-11-22 15:15:16,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-22 15:15:16,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:15:16,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:15:16,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-22 15:15:16,502 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 29 more)] === [2021-11-22 15:15:16,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:15:16,503 INFO L85 PathProgramCache]: Analyzing trace with hash -252630567, now seen corresponding path program 1 times [2021-11-22 15:15:16,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:15:16,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369695989] [2021-11-22 15:15:16,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:15:16,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:15:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:15:16,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:15:16,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:15:16,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369695989] [2021-11-22 15:15:16,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369695989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:15:16,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:15:16,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:15:16,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025017152] [2021-11-22 15:15:16,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:15:16,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:15:16,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:15:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:15:16,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:16,577 INFO L87 Difference]: Start difference. First operand 26077 states and 44641 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-22 15:15:19,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:15:19,129 INFO L93 Difference]: Finished difference Result 69051 states and 118397 transitions. [2021-11-22 15:15:19,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:15:19,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 100 [2021-11-22 15:15:19,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:15:19,218 INFO L225 Difference]: With dead ends: 69051 [2021-11-22 15:15:19,219 INFO L226 Difference]: Without dead ends: 45832 [2021-11-22 15:15:19,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:15:19,253 INFO L933 BasicCegarLoop]: 6912 mSDtfsCounter, 6820 mSDsluCounter, 6897 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6820 SdHoareTripleChecker+Valid, 13809 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:15:19,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6820 Valid, 13809 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:15:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45832 states.