./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/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_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/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 64bit --witnessprinter.graph.data.programhash 4b03525ec5447375a01688a728ac5f10add5f84664db60bd75967c00682bdc6d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:30:35,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:30:35,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:30:35,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:30:35,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:30:35,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:30:35,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:30:35,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:30:35,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:30:35,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:30:35,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:30:35,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:30:35,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:30:35,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:30:35,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:30:35,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:30:35,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:30:35,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:30:35,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:30:36,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:30:36,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:30:36,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:30:36,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:30:36,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:30:36,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:30:36,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:30:36,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:30:36,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:30:36,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:30:36,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:30:36,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:30:36,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:30:36,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:30:36,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:30:36,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:30:36,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:30:36,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:30:36,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:30:36,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:30:36,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:30:36,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:30:36,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:30:36,097 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:30:36,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:30:36,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:30:36,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:30:36,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:30:36,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:30:36,108 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:30:36,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:30:36,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:30:36,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:30:36,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:30:36,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:30:36,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:30:36,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:30:36,112 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:30:36,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:30:36,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:30:36,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:30:36,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:30:36,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:30:36,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:30:36,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:30:36,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:30:36,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:30:36,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:30:36,115 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:30:36,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:30:36,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:30:36,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:30:36,116 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_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b03525ec5447375a01688a728ac5f10add5f84664db60bd75967c00682bdc6d [2021-11-22 15:30:36,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:30:36,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:30:36,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:30:36,510 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:30:36,511 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:30:36,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-22 15:30:36,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/data/ae4e6a6fe/e758b4d9a3134738a7a8a6b27ed05672/FLAGef02a2e46 [2021-11-22 15:30:37,784 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:30:37,785 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-22 15:30:37,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/data/ae4e6a6fe/e758b4d9a3134738a7a8a6b27ed05672/FLAGef02a2e46 [2021-11-22 15:30:38,141 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/data/ae4e6a6fe/e758b4d9a3134738a7a8a6b27ed05672 [2021-11-22 15:30:38,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:30:38,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:30:38,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:30:38,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:30:38,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:30:38,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:30:38" (1/1) ... [2021-11-22 15:30:38,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd84476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:38, skipping insertion in model container [2021-11-22 15:30:38,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:30:38" (1/1) ... [2021-11-22 15:30:38,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:30:38,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:30:40,425 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_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i[212825,212838] [2021-11-22 15:30:40,574 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:30:40,621 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:30:40,979 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_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i[212825,212838] [2021-11-22 15:30:41,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:30:41,167 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:30:41,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41 WrapperNode [2021-11-22 15:30:41,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:30:41,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:30:41,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:30:41,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:30:41,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41" (1/1) ... [2021-11-22 15:30:41,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41" (1/1) ... [2021-11-22 15:30:41,765 INFO L137 Inliner]: procedures = 272, calls = 2460, calls flagged for inlining = 525, calls inlined = 882, statements flattened = 11353 [2021-11-22 15:30:41,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:30:41,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:30:41,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:30:41,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:30:41,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41" (1/1) ... [2021-11-22 15:30:41,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41" (1/1) ... [2021-11-22 15:30:41,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41" (1/1) ... [2021-11-22 15:30:41,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41" (1/1) ... [2021-11-22 15:30:42,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41" (1/1) ... [2021-11-22 15:30:42,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41" (1/1) ... [2021-11-22 15:30:42,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41" (1/1) ... [2021-11-22 15:30:42,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:30:42,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:30:42,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:30:42,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:30:42,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41" (1/1) ... [2021-11-22 15:30:42,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:30:42,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:30:42,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:30:42,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9de4a17-ff0b-4e3b-9dd6-33f555c72565/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:30:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-22 15:30:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 15:30:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 15:30:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:30:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:30:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:30:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:30:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 15:30:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 15:30:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:30:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:30:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:30:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:30:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:30:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 15:30:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:30:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:30:42,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:30:43,302 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:30:43,304 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:31:00,780 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:31:00,813 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:31:00,813 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 15:31:00,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:31:00 BoogieIcfgContainer [2021-11-22 15:31:00,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:31:00,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:31:00,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:31:00,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:31:00,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:30:38" (1/3) ... [2021-11-22 15:31:00,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b3b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:31:00, skipping insertion in model container [2021-11-22 15:31:00,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:41" (2/3) ... [2021-11-22 15:31:00,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b3b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:31:00, skipping insertion in model container [2021-11-22 15:31:00,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:31:00" (3/3) ... [2021-11-22 15:31:00,829 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-22 15:31:00,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:31:00,836 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-22 15:31:00,908 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:31:00,916 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 15:31:00,917 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-22 15:31:00,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 2212 states, 2140 states have (on average 1.422429906542056) internal successors, (3044), 2211 states have internal predecessors, (3044), 0 states have call successors, (0), 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 15:31:01,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 15:31:01,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:01,013 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] [2021-11-22 15:31:01,013 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:01,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:01,019 INFO L85 PathProgramCache]: Analyzing trace with hash -107109679, now seen corresponding path program 1 times [2021-11-22 15:31:01,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:01,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758106160] [2021-11-22 15:31:01,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:01,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:01,851 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 15:31:01,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:01,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758106160] [2021-11-22 15:31:01,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758106160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:01,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:01,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:31:01,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689308475] [2021-11-22 15:31:01,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:01,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:31:01,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:01,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:31:01,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:31:01,907 INFO L87 Difference]: Start difference. First operand has 2212 states, 2140 states have (on average 1.422429906542056) internal successors, (3044), 2211 states have internal predecessors, (3044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 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 15:31:02,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:02,217 INFO L93 Difference]: Finished difference Result 4349 states and 6012 transitions. [2021-11-22 15:31:02,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:31:02,220 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2021-11-22 15:31:02,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:02,251 INFO L225 Difference]: With dead ends: 4349 [2021-11-22 15:31:02,251 INFO L226 Difference]: Without dead ends: 2130 [2021-11-22 15:31:02,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:31:02,267 INFO L933 BasicCegarLoop]: 2848 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:02,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2848 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:31:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2021-11-22 15:31:02,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 2130. [2021-11-22 15:31:02,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2059 states have (on average 1.3744536182612919) internal successors, (2830), 2129 states have internal predecessors, (2830), 0 states have call successors, (0), 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 15:31:02,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2830 transitions. [2021-11-22 15:31:02,417 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2830 transitions. Word has length 74 [2021-11-22 15:31:02,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:02,418 INFO L470 AbstractCegarLoop]: Abstraction has 2130 states and 2830 transitions. [2021-11-22 15:31:02,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 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 15:31:02,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2830 transitions. [2021-11-22 15:31:02,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 15:31:02,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:02,422 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] [2021-11-22 15:31:02,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:31:02,423 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:02,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:02,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2011007137, now seen corresponding path program 1 times [2021-11-22 15:31:02,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:02,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057333639] [2021-11-22 15:31:02,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:02,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:02,867 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 15:31:02,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:02,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057333639] [2021-11-22 15:31:02,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057333639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:02,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:02,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:31:02,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084378441] [2021-11-22 15:31:02,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:02,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:02,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:02,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:02,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:02,876 INFO L87 Difference]: Start difference. First operand 2130 states and 2830 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 15:31:03,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:03,375 INFO L93 Difference]: Finished difference Result 5709 states and 7592 transitions. [2021-11-22 15:31:03,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:03,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2021-11-22 15:31:03,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:03,426 INFO L225 Difference]: With dead ends: 5709 [2021-11-22 15:31:03,427 INFO L226 Difference]: Without dead ends: 3645 [2021-11-22 15:31:03,435 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 15:31:03,437 INFO L933 BasicCegarLoop]: 2829 mSDtfsCounter, 2076 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 5566 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:03,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2076 Valid, 5566 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:31:03,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3645 states. [2021-11-22 15:31:03,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3645 to 3507. [2021-11-22 15:31:03,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3436 states have (on average 1.3818393480791618) internal successors, (4748), 3506 states have internal predecessors, (4748), 0 states have call successors, (0), 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 15:31:03,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 4748 transitions. [2021-11-22 15:31:03,668 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 4748 transitions. Word has length 74 [2021-11-22 15:31:03,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:03,670 INFO L470 AbstractCegarLoop]: Abstraction has 3507 states and 4748 transitions. [2021-11-22 15:31:03,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 15:31:03,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 4748 transitions. [2021-11-22 15:31:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-22 15:31:03,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:03,679 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] [2021-11-22 15:31:03,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:31:03,684 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:03,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:03,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1363281850, now seen corresponding path program 1 times [2021-11-22 15:31:03,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:03,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541030526] [2021-11-22 15:31:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:03,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:04,070 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 15:31:04,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:04,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541030526] [2021-11-22 15:31:04,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541030526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:04,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:04,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:31:04,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113604922] [2021-11-22 15:31:04,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:04,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:04,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:04,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:04,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:04,081 INFO L87 Difference]: Start difference. First operand 3507 states and 4748 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 15:31:04,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:04,380 INFO L93 Difference]: Finished difference Result 8829 states and 12014 transitions. [2021-11-22 15:31:04,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:04,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2021-11-22 15:31:04,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:04,421 INFO L225 Difference]: With dead ends: 8829 [2021-11-22 15:31:04,421 INFO L226 Difference]: Without dead ends: 5388 [2021-11-22 15:31:04,431 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 15:31:04,437 INFO L933 BasicCegarLoop]: 3569 mSDtfsCounter, 1754 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 6300 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:04,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1754 Valid, 6300 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:31:04,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5388 states. [2021-11-22 15:31:04,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5388 to 5283. [2021-11-22 15:31:04,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5283 states, 5212 states have (on average 1.396968534151957) internal successors, (7281), 5282 states have internal predecessors, (7281), 0 states have call successors, (0), 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 15:31:04,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 7281 transitions. [2021-11-22 15:31:04,624 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 7281 transitions. Word has length 75 [2021-11-22 15:31:04,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:04,626 INFO L470 AbstractCegarLoop]: Abstraction has 5283 states and 7281 transitions. [2021-11-22 15:31:04,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 15:31:04,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 7281 transitions. [2021-11-22 15:31:04,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-22 15:31:04,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:04,631 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 15:31:04,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:31:04,631 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:04,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:04,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1375288376, now seen corresponding path program 1 times [2021-11-22 15:31:04,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:04,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415333035] [2021-11-22 15:31:04,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:04,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:04,905 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 15:31:04,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:04,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415333035] [2021-11-22 15:31:04,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415333035] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:04,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:04,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:31:04,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173270543] [2021-11-22 15:31:04,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:04,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:04,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:04,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:04,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:04,909 INFO L87 Difference]: Start difference. First operand 5283 states and 7281 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 15:31:05,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:05,510 INFO L93 Difference]: Finished difference Result 15643 states and 21615 transitions. [2021-11-22 15:31:05,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:05,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 15:31:05,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:05,584 INFO L225 Difference]: With dead ends: 15643 [2021-11-22 15:31:05,584 INFO L226 Difference]: Without dead ends: 10426 [2021-11-22 15:31:05,599 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 15:31:05,602 INFO L933 BasicCegarLoop]: 3567 mSDtfsCounter, 2695 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2695 SdHoareTripleChecker+Valid, 6373 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:05,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2695 Valid, 6373 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:31:05,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10426 states. [2021-11-22 15:31:05,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10426 to 10288. [2021-11-22 15:31:06,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10288 states, 10217 states have (on average 1.4022707252618185) internal successors, (14327), 10287 states have internal predecessors, (14327), 0 states have call successors, (0), 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 15:31:06,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10288 states to 10288 states and 14327 transitions. [2021-11-22 15:31:06,074 INFO L78 Accepts]: Start accepts. Automaton has 10288 states and 14327 transitions. Word has length 80 [2021-11-22 15:31:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:06,074 INFO L470 AbstractCegarLoop]: Abstraction has 10288 states and 14327 transitions. [2021-11-22 15:31:06,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 15:31:06,075 INFO L276 IsEmpty]: Start isEmpty. Operand 10288 states and 14327 transitions. [2021-11-22 15:31:06,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-22 15:31:06,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:06,076 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 15:31:06,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:31:06,077 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:06,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:06,079 INFO L85 PathProgramCache]: Analyzing trace with hash -909883236, now seen corresponding path program 1 times [2021-11-22 15:31:06,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:06,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049505485] [2021-11-22 15:31:06,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:06,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:06,384 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 15:31:06,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:06,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049505485] [2021-11-22 15:31:06,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049505485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:06,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:06,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:31:06,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553293085] [2021-11-22 15:31:06,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:06,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:06,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:06,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:06,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:06,389 INFO L87 Difference]: Start difference. First operand 10288 states and 14327 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 15:31:07,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:07,059 INFO L93 Difference]: Finished difference Result 28233 states and 39370 transitions. [2021-11-22 15:31:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:07,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 15:31:07,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:07,164 INFO L225 Difference]: With dead ends: 28233 [2021-11-22 15:31:07,164 INFO L226 Difference]: Without dead ends: 18011 [2021-11-22 15:31:07,186 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 15:31:07,187 INFO L933 BasicCegarLoop]: 3575 mSDtfsCounter, 2341 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2341 SdHoareTripleChecker+Valid, 6312 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:07,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2341 Valid, 6312 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:31:07,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18011 states. [2021-11-22 15:31:07,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18011 to 17892. [2021-11-22 15:31:07,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17892 states, 17821 states have (on average 1.4053644576623086) internal successors, (25045), 17891 states have internal predecessors, (25045), 0 states have call successors, (0), 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 15:31:08,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17892 states to 17892 states and 25045 transitions. [2021-11-22 15:31:08,004 INFO L78 Accepts]: Start accepts. Automaton has 17892 states and 25045 transitions. Word has length 80 [2021-11-22 15:31:08,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:08,006 INFO L470 AbstractCegarLoop]: Abstraction has 17892 states and 25045 transitions. [2021-11-22 15:31:08,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 15:31:08,010 INFO L276 IsEmpty]: Start isEmpty. Operand 17892 states and 25045 transitions. [2021-11-22 15:31:08,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-22 15:31:08,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:08,015 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 15:31:08,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:31:08,015 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:08,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:08,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1181682654, now seen corresponding path program 1 times [2021-11-22 15:31:08,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:08,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630531361] [2021-11-22 15:31:08,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:08,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:08,308 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 15:31:08,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:08,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630531361] [2021-11-22 15:31:08,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630531361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:08,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:08,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:31:08,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197534715] [2021-11-22 15:31:08,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:08,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:08,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:08,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:08,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:08,312 INFO L87 Difference]: Start difference. First operand 17892 states and 25045 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 15:31:09,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:09,488 INFO L93 Difference]: Finished difference Result 50937 states and 71215 transitions. [2021-11-22 15:31:09,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:09,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 15:31:09,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:09,602 INFO L225 Difference]: With dead ends: 50937 [2021-11-22 15:31:09,603 INFO L226 Difference]: Without dead ends: 33111 [2021-11-22 15:31:09,641 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 15:31:09,643 INFO L933 BasicCegarLoop]: 4017 mSDtfsCounter, 2562 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2562 SdHoareTripleChecker+Valid, 6763 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:09,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2562 Valid, 6763 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:31:09,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33111 states. [2021-11-22 15:31:10,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33111 to 32956. [2021-11-22 15:31:10,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32956 states, 32885 states have (on average 1.4029800821043028) internal successors, (46137), 32955 states have internal predecessors, (46137), 0 states have call successors, (0), 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 15:31:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32956 states to 32956 states and 46137 transitions. [2021-11-22 15:31:11,125 INFO L78 Accepts]: Start accepts. Automaton has 32956 states and 46137 transitions. Word has length 81 [2021-11-22 15:31:11,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:11,125 INFO L470 AbstractCegarLoop]: Abstraction has 32956 states and 46137 transitions. [2021-11-22 15:31:11,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 15:31:11,126 INFO L276 IsEmpty]: Start isEmpty. Operand 32956 states and 46137 transitions. [2021-11-22 15:31:11,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-22 15:31:11,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:11,131 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 15:31:11,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 15:31:11,132 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:11,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:11,133 INFO L85 PathProgramCache]: Analyzing trace with hash 952967719, now seen corresponding path program 1 times [2021-11-22 15:31:11,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:11,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876920930] [2021-11-22 15:31:11,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:11,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:11,654 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 15:31:11,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:11,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876920930] [2021-11-22 15:31:11,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876920930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:11,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:11,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:31:11,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784416147] [2021-11-22 15:31:11,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:11,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:11,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:11,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:11,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:11,657 INFO L87 Difference]: Start difference. First operand 32956 states and 46137 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 15:31:13,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:13,791 INFO L93 Difference]: Finished difference Result 94312 states and 132018 transitions. [2021-11-22 15:31:13,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:13,791 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 15:31:13,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:14,053 INFO L225 Difference]: With dead ends: 94312 [2021-11-22 15:31:14,054 INFO L226 Difference]: Without dead ends: 61422 [2021-11-22 15:31:14,151 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 15:31:14,153 INFO L933 BasicCegarLoop]: 4258 mSDtfsCounter, 2592 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2592 SdHoareTripleChecker+Valid, 7004 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:14,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2592 Valid, 7004 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:31:14,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61422 states. [2021-11-22 15:31:16,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61422 to 61276. [2021-11-22 15:31:16,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61276 states, 61205 states have (on average 1.402516134302753) internal successors, (85841), 61275 states have internal predecessors, (85841), 0 states have call successors, (0), 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 15:31:17,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61276 states to 61276 states and 85841 transitions. [2021-11-22 15:31:17,067 INFO L78 Accepts]: Start accepts. Automaton has 61276 states and 85841 transitions. Word has length 82 [2021-11-22 15:31:17,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:17,068 INFO L470 AbstractCegarLoop]: Abstraction has 61276 states and 85841 transitions. [2021-11-22 15:31:17,068 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 15:31:17,068 INFO L276 IsEmpty]: Start isEmpty. Operand 61276 states and 85841 transitions. [2021-11-22 15:31:17,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-22 15:31:17,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:17,070 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] [2021-11-22 15:31:17,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 15:31:17,070 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:17,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:17,072 INFO L85 PathProgramCache]: Analyzing trace with hash -797957061, now seen corresponding path program 1 times [2021-11-22 15:31:17,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:17,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596491277] [2021-11-22 15:31:17,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:17,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:17,373 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 15:31:17,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:17,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596491277] [2021-11-22 15:31:17,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596491277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:17,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:17,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:31:17,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736299226] [2021-11-22 15:31:17,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:17,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:17,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:17,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:17,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:17,376 INFO L87 Difference]: Start difference. First operand 61276 states and 85841 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:31:18,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:18,856 INFO L93 Difference]: Finished difference Result 61276 states and 85841 transitions. [2021-11-22 15:31:18,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:18,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-11-22 15:31:18,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:19,080 INFO L225 Difference]: With dead ends: 61276 [2021-11-22 15:31:19,080 INFO L226 Difference]: Without dead ends: 61264 [2021-11-22 15:31:19,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:31:19,096 INFO L933 BasicCegarLoop]: 2812 mSDtfsCounter, 1896 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 3622 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:19,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1896 Valid, 3622 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:31:19,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61264 states. [2021-11-22 15:31:20,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61264 to 61264. [2021-11-22 15:31:20,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61264 states, 61199 states have (on average 1.399924835373127) internal successors, (85674), 61263 states have internal predecessors, (85674), 0 states have call successors, (0), 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 15:31:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61264 states to 61264 states and 85674 transitions. [2021-11-22 15:31:21,090 INFO L78 Accepts]: Start accepts. Automaton has 61264 states and 85674 transitions. Word has length 91 [2021-11-22 15:31:21,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:21,096 INFO L470 AbstractCegarLoop]: Abstraction has 61264 states and 85674 transitions. [2021-11-22 15:31:21,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:31:21,096 INFO L276 IsEmpty]: Start isEmpty. Operand 61264 states and 85674 transitions. [2021-11-22 15:31:21,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-22 15:31:21,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:21,098 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] [2021-11-22 15:31:21,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 15:31:21,099 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:21,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:21,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1033148855, now seen corresponding path program 1 times [2021-11-22 15:31:21,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:21,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75765275] [2021-11-22 15:31:21,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:21,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:21,437 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 15:31:21,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:21,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75765275] [2021-11-22 15:31:21,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75765275] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:21,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:21,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:31:21,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315692459] [2021-11-22 15:31:21,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:21,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:21,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:21,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:21,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:21,446 INFO L87 Difference]: Start difference. First operand 61264 states and 85674 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 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 15:31:23,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:23,727 INFO L93 Difference]: Finished difference Result 134525 states and 188032 transitions. [2021-11-22 15:31:23,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:23,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2021-11-22 15:31:23,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:23,909 INFO L225 Difference]: With dead ends: 134525 [2021-11-22 15:31:23,909 INFO L226 Difference]: Without dead ends: 73327 [2021-11-22 15:31:24,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:31:24,210 INFO L933 BasicCegarLoop]: 2754 mSDtfsCounter, 889 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 4938 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:24,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [889 Valid, 4938 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:31:24,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73327 states. [2021-11-22 15:31:26,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73327 to 72544. [2021-11-22 15:31:26,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72544 states, 72489 states have (on average 1.3865552014788451) internal successors, (100510), 72543 states have internal predecessors, (100510), 0 states have call successors, (0), 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 15:31:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72544 states to 72544 states and 100510 transitions. [2021-11-22 15:31:26,577 INFO L78 Accepts]: Start accepts. Automaton has 72544 states and 100510 transitions. Word has length 92 [2021-11-22 15:31:26,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:26,577 INFO L470 AbstractCegarLoop]: Abstraction has 72544 states and 100510 transitions. [2021-11-22 15:31:26,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 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 15:31:26,578 INFO L276 IsEmpty]: Start isEmpty. Operand 72544 states and 100510 transitions. [2021-11-22 15:31:26,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-22 15:31:26,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:26,580 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] [2021-11-22 15:31:26,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 15:31:26,583 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:26,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1962857414, now seen corresponding path program 1 times [2021-11-22 15:31:26,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:26,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508011510] [2021-11-22 15:31:26,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:26,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:26,918 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 15:31:26,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:26,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508011510] [2021-11-22 15:31:26,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508011510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:26,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:26,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:31:26,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282941896] [2021-11-22 15:31:26,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:26,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:26,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:26,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:26,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:26,922 INFO L87 Difference]: Start difference. First operand 72544 states and 100510 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 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 15:31:28,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:28,617 INFO L93 Difference]: Finished difference Result 72544 states and 100510 transitions. [2021-11-22 15:31:28,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:28,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-11-22 15:31:28,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:28,747 INFO L225 Difference]: With dead ends: 72544 [2021-11-22 15:31:28,747 INFO L226 Difference]: Without dead ends: 72535 [2021-11-22 15:31:28,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:31:28,760 INFO L933 BasicCegarLoop]: 2780 mSDtfsCounter, 2689 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2689 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:28,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2689 Valid, 2780 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:31:28,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72535 states. [2021-11-22 15:31:30,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72535 to 72535. [2021-11-22 15:31:30,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72535 states, 72481 states have (on average 1.3859080310702114) internal successors, (100452), 72534 states have internal predecessors, (100452), 0 states have call successors, (0), 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 15:31:30,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72535 states to 72535 states and 100452 transitions. [2021-11-22 15:31:30,890 INFO L78 Accepts]: Start accepts. Automaton has 72535 states and 100452 transitions. Word has length 93 [2021-11-22 15:31:30,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:30,890 INFO L470 AbstractCegarLoop]: Abstraction has 72535 states and 100452 transitions. [2021-11-22 15:31:30,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 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 15:31:30,891 INFO L276 IsEmpty]: Start isEmpty. Operand 72535 states and 100452 transitions. [2021-11-22 15:31:30,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-22 15:31:30,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:30,892 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 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 15:31:30,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-22 15:31:30,893 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:30,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:30,893 INFO L85 PathProgramCache]: Analyzing trace with hash 790226787, now seen corresponding path program 1 times [2021-11-22 15:31:30,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:30,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919019117] [2021-11-22 15:31:30,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:30,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:31:31,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:31,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919019117] [2021-11-22 15:31:31,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919019117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:31,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:31,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:31:31,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8162796] [2021-11-22 15:31:31,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:31,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:31,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:31,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:31,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:31,150 INFO L87 Difference]: Start difference. First operand 72535 states and 100452 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 15:31:32,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:32,777 INFO L93 Difference]: Finished difference Result 109140 states and 151119 transitions. [2021-11-22 15:31:32,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:32,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2021-11-22 15:31:32,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:32,855 INFO L225 Difference]: With dead ends: 109140 [2021-11-22 15:31:32,855 INFO L226 Difference]: Without dead ends: 36655 [2021-11-22 15:31:32,937 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 15:31:32,938 INFO L933 BasicCegarLoop]: 2782 mSDtfsCounter, 5 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5555 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:32,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 5555 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:31:32,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36655 states. [2021-11-22 15:31:33,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36655 to 36275. [2021-11-22 15:31:33,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36275 states, 36221 states have (on average 1.387868915822313) internal successors, (50270), 36274 states have internal predecessors, (50270), 0 states have call successors, (0), 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 15:31:33,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36275 states to 36275 states and 50270 transitions. [2021-11-22 15:31:33,906 INFO L78 Accepts]: Start accepts. Automaton has 36275 states and 50270 transitions. Word has length 122 [2021-11-22 15:31:33,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:33,907 INFO L470 AbstractCegarLoop]: Abstraction has 36275 states and 50270 transitions. [2021-11-22 15:31:33,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 15:31:33,907 INFO L276 IsEmpty]: Start isEmpty. Operand 36275 states and 50270 transitions. [2021-11-22 15:31:33,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-22 15:31:33,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:33,911 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:33,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 15:31:33,912 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:33,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:33,912 INFO L85 PathProgramCache]: Analyzing trace with hash -916309489, now seen corresponding path program 1 times [2021-11-22 15:31:33,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:33,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163750130] [2021-11-22 15:31:33,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:33,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:34,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 15:31:34,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:34,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163750130] [2021-11-22 15:31:34,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163750130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:34,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:34,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:31:34,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279142024] [2021-11-22 15:31:34,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:34,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:34,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:34,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:34,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:34,415 INFO L87 Difference]: Start difference. First operand 36275 states and 50270 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 15:31:36,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:36,007 INFO L93 Difference]: Finished difference Result 72397 states and 100393 transitions. [2021-11-22 15:31:36,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:36,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 139 [2021-11-22 15:31:36,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:36,095 INFO L225 Difference]: With dead ends: 72397 [2021-11-22 15:31:36,095 INFO L226 Difference]: Without dead ends: 36223 [2021-11-22 15:31:36,142 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 15:31:36,143 INFO L933 BasicCegarLoop]: 3177 mSDtfsCounter, 2196 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 4117 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:36,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2196 Valid, 4117 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:31:36,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36223 states. [2021-11-22 15:31:37,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36223 to 35602. [2021-11-22 15:31:37,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35602 states, 35577 states have (on average 1.3733591927368807) internal successors, (48860), 35601 states have internal predecessors, (48860), 0 states have call successors, (0), 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 15:31:37,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35602 states to 35602 states and 48860 transitions. [2021-11-22 15:31:37,231 INFO L78 Accepts]: Start accepts. Automaton has 35602 states and 48860 transitions. Word has length 139 [2021-11-22 15:31:37,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:37,231 INFO L470 AbstractCegarLoop]: Abstraction has 35602 states and 48860 transitions. [2021-11-22 15:31:37,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 15:31:37,232 INFO L276 IsEmpty]: Start isEmpty. Operand 35602 states and 48860 transitions. [2021-11-22 15:31:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-22 15:31:37,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:37,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:37,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 15:31:37,241 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:37,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:37,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1129826874, now seen corresponding path program 1 times [2021-11-22 15:31:37,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:37,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874761262] [2021-11-22 15:31:37,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:37,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:37,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 15:31:37,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:37,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874761262] [2021-11-22 15:31:37,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874761262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:37,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:37,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:31:37,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328291697] [2021-11-22 15:31:37,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:37,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:37,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:37,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:37,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:37,628 INFO L87 Difference]: Start difference. First operand 35602 states and 48860 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 15:31:38,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:38,397 INFO L93 Difference]: Finished difference Result 35602 states and 48860 transitions. [2021-11-22 15:31:38,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:38,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 145 [2021-11-22 15:31:38,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:38,457 INFO L225 Difference]: With dead ends: 35602 [2021-11-22 15:31:38,457 INFO L226 Difference]: Without dead ends: 35590 [2021-11-22 15:31:38,468 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 15:31:38,469 INFO L933 BasicCegarLoop]: 2703 mSDtfsCounter, 781 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 4604 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:38,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [781 Valid, 4604 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:31:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35590 states. [2021-11-22 15:31:39,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35590 to 35590. [2021-11-22 15:31:39,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35590 states, 35571 states have (on average 1.3693739281999382) internal successors, (48710), 35589 states have internal predecessors, (48710), 0 states have call successors, (0), 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 15:31:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35590 states to 35590 states and 48710 transitions. [2021-11-22 15:31:39,432 INFO L78 Accepts]: Start accepts. Automaton has 35590 states and 48710 transitions. Word has length 145 [2021-11-22 15:31:39,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:39,432 INFO L470 AbstractCegarLoop]: Abstraction has 35590 states and 48710 transitions. [2021-11-22 15:31:39,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 15:31:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 35590 states and 48710 transitions. [2021-11-22 15:31:39,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-22 15:31:39,467 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:39,467 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:39,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 15:31:39,468 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:39,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:39,469 INFO L85 PathProgramCache]: Analyzing trace with hash -2032958653, now seen corresponding path program 1 times [2021-11-22 15:31:39,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:39,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889071245] [2021-11-22 15:31:39,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:39,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:31:39,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:39,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889071245] [2021-11-22 15:31:39,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889071245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:39,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:39,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 15:31:39,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57244837] [2021-11-22 15:31:39,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:39,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 15:31:39,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:39,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 15:31:39,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:31:39,796 INFO L87 Difference]: Start difference. First operand 35590 states and 48710 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 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 15:31:41,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:41,433 INFO L93 Difference]: Finished difference Result 71091 states and 97311 transitions. [2021-11-22 15:31:41,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:31:41,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2021-11-22 15:31:41,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:41,515 INFO L225 Difference]: With dead ends: 71091 [2021-11-22 15:31:41,515 INFO L226 Difference]: Without dead ends: 35599 [2021-11-22 15:31:41,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 15:31:41,559 INFO L933 BasicCegarLoop]: 2709 mSDtfsCounter, 21 mSDsluCounter, 8112 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 10821 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:41,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 10821 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:31:41,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35599 states. [2021-11-22 15:31:42,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35599 to 35593. [2021-11-22 15:31:42,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35593 states, 35574 states have (on average 1.3693146680159667) internal successors, (48712), 35592 states have internal predecessors, (48712), 0 states have call successors, (0), 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 15:31:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35593 states to 35593 states and 48712 transitions. [2021-11-22 15:31:42,637 INFO L78 Accepts]: Start accepts. Automaton has 35593 states and 48712 transitions. Word has length 164 [2021-11-22 15:31:42,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:42,638 INFO L470 AbstractCegarLoop]: Abstraction has 35593 states and 48712 transitions. [2021-11-22 15:31:42,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 0 states have call successors, (0), 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 15:31:42,638 INFO L276 IsEmpty]: Start isEmpty. Operand 35593 states and 48712 transitions. [2021-11-22 15:31:42,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-22 15:31:42,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:42,669 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:42,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 15:31:42,669 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:42,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:42,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1204170565, now seen corresponding path program 1 times [2021-11-22 15:31:42,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:42,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961597147] [2021-11-22 15:31:42,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:42,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:43,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 15:31:43,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:43,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961597147] [2021-11-22 15:31:43,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961597147] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:43,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:43,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:31:43,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031530456] [2021-11-22 15:31:43,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:43,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:31:43,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:43,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:31:43,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:31:43,319 INFO L87 Difference]: Start difference. First operand 35593 states and 48712 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 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 15:31:49,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:49,348 INFO L93 Difference]: Finished difference Result 148816 states and 203702 transitions. [2021-11-22 15:31:49,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:31:49,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 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 164 [2021-11-22 15:31:49,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:49,574 INFO L225 Difference]: With dead ends: 148816 [2021-11-22 15:31:49,575 INFO L226 Difference]: Without dead ends: 113324 [2021-11-22 15:31:49,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 15:31:49,619 INFO L933 BasicCegarLoop]: 5204 mSDtfsCounter, 8689 mSDsluCounter, 8767 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8689 SdHoareTripleChecker+Valid, 13971 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:49,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8689 Valid, 13971 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 15:31:49,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113324 states. [2021-11-22 15:31:51,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113324 to 35625. [2021-11-22 15:31:51,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35625 states, 35606 states have (on average 1.368533393248329) internal successors, (48728), 35624 states have internal predecessors, (48728), 0 states have call successors, (0), 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 15:31:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35625 states to 35625 states and 48728 transitions. [2021-11-22 15:31:52,029 INFO L78 Accepts]: Start accepts. Automaton has 35625 states and 48728 transitions. Word has length 164 [2021-11-22 15:31:52,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:52,029 INFO L470 AbstractCegarLoop]: Abstraction has 35625 states and 48728 transitions. [2021-11-22 15:31:52,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 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 15:31:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 35625 states and 48728 transitions. [2021-11-22 15:31:52,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-22 15:31:52,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:52,085 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:52,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 15:31:52,085 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:52,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:52,086 INFO L85 PathProgramCache]: Analyzing trace with hash 996391237, now seen corresponding path program 1 times [2021-11-22 15:31:52,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:52,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132475604] [2021-11-22 15:31:52,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:52,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 15:31:52,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:52,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132475604] [2021-11-22 15:31:52,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132475604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:52,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:52,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:31:52,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468661334] [2021-11-22 15:31:52,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:52,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:31:52,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:52,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:31:52,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:31:52,425 INFO L87 Difference]: Start difference. First operand 35625 states and 48728 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 15:31:55,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:31:55,342 INFO L93 Difference]: Finished difference Result 99230 states and 135933 transitions. [2021-11-22 15:31:55,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:31:55,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 166 [2021-11-22 15:31:55,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:31:55,443 INFO L225 Difference]: With dead ends: 99230 [2021-11-22 15:31:55,443 INFO L226 Difference]: Without dead ends: 63706 [2021-11-22 15:31:55,478 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 15:31:55,479 INFO L933 BasicCegarLoop]: 4785 mSDtfsCounter, 2461 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 7096 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:31:55,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2461 Valid, 7096 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:31:55,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63706 states. [2021-11-22 15:31:57,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63706 to 35689. [2021-11-22 15:31:57,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35689 states, 35670 states have (on average 1.3678441267171293) internal successors, (48791), 35688 states have internal predecessors, (48791), 0 states have call successors, (0), 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 15:31:57,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35689 states to 35689 states and 48791 transitions. [2021-11-22 15:31:57,507 INFO L78 Accepts]: Start accepts. Automaton has 35689 states and 48791 transitions. Word has length 166 [2021-11-22 15:31:57,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:31:57,507 INFO L470 AbstractCegarLoop]: Abstraction has 35689 states and 48791 transitions. [2021-11-22 15:31:57,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 15:31:57,507 INFO L276 IsEmpty]: Start isEmpty. Operand 35689 states and 48791 transitions. [2021-11-22 15:31:57,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-22 15:31:57,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:31:57,534 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:57,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-22 15:31:57,535 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-22 15:31:57,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:57,536 INFO L85 PathProgramCache]: Analyzing trace with hash 2026536845, now seen corresponding path program 1 times [2021-11-22 15:31:57,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:57,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106984871] [2021-11-22 15:31:57,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:57,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 15:31:58,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:31:58,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106984871] [2021-11-22 15:31:58,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106984871] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:31:58,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:31:58,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 15:31:58,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247144215] [2021-11-22 15:31:58,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:31:58,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:31:58,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:31:58,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:31:58,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:31:58,192 INFO L87 Difference]: Start difference. First operand 35689 states and 48791 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 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 15:32:03,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:32:03,877 INFO L93 Difference]: Finished difference Result 128437 states and 175680 transitions. [2021-11-22 15:32:03,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:32:03,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 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 170 [2021-11-22 15:32:03,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:32:04,032 INFO L225 Difference]: With dead ends: 128437 [2021-11-22 15:32:04,032 INFO L226 Difference]: Without dead ends: 92849 [2021-11-22 15:32:04,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 15:32:04,072 INFO L933 BasicCegarLoop]: 5012 mSDtfsCounter, 6580 mSDsluCounter, 6982 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 11994 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:32:04,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6580 Valid, 11994 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:32:04,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92849 states.