./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 21774f07edc6bb728cb664e1a2361d7b986cd58290bb234c442a42ac18f35f10 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:40:05,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:40:05,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:40:05,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:40:05,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:40:05,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:40:05,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:40:05,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:40:05,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:40:05,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:40:05,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:40:05,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:40:05,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:40:05,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:40:05,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:40:05,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:40:05,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:40:05,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:40:05,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:40:05,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:40:05,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:40:05,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:40:05,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:40:05,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:40:05,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:40:05,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:40:05,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:40:05,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:40:05,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:40:05,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:40:05,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:40:05,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:40:05,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:40:05,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:40:05,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:40:05,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:40:05,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:40:05,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:40:05,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:40:05,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:40:05,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:40:05,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:40:05,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:40:05,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:40:05,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:40:05,769 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:40:05,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:40:05,770 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:40:05,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:40:05,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:40:05,770 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:40:05,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:40:05,771 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:40:05,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:40:05,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:40:05,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:40:05,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:40:05,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:40:05,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:40:05,772 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:40:05,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:40:05,772 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:40:05,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:40:05,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:40:05,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:40:05,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:40:05,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:40:05,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:40:05,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:40:05,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:40:05,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:40:05,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:40:05,773 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:40:05,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:40:05,773 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:40:05,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:40:05,773 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:40:05,774 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21774f07edc6bb728cb664e1a2361d7b986cd58290bb234c442a42ac18f35f10 [2022-12-13 14:40:05,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:40:05,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:40:05,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:40:05,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:40:05,958 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:40:05,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/email_spec6_product28.cil.c [2022-12-13 14:40:08,561 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:40:08,809 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:40:08,810 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/sv-benchmarks/c/product-lines/email_spec6_product28.cil.c [2022-12-13 14:40:08,824 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/data/f93a92934/9620c194edfd4178b1e289d4d814bd43/FLAGcf0bf2eb1 [2022-12-13 14:40:09,131 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/data/f93a92934/9620c194edfd4178b1e289d4d814bd43 [2022-12-13 14:40:09,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:40:09,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:40:09,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:40:09,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:40:09,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:40:09,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341373ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09, skipping insertion in model container [2022-12-13 14:40:09,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:40:09,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:40:09,362 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,366 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,372 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,405 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,411 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,491 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,493 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,587 WARN L237 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_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/sv-benchmarks/c/product-lines/email_spec6_product28.cil.c[64121,64134] [2022-12-13 14:40:09,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:40:09,600 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:40:09,614 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,615 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,617 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,620 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,622 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,644 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,645 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:09,676 WARN L237 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_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/sv-benchmarks/c/product-lines/email_spec6_product28.cil.c[64121,64134] [2022-12-13 14:40:09,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:40:09,696 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:40:09,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09 WrapperNode [2022-12-13 14:40:09,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:40:09,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:40:09,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:40:09,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:40:09,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,752 INFO L138 Inliner]: procedures = 129, calls = 215, calls flagged for inlining = 56, calls inlined = 46, statements flattened = 879 [2022-12-13 14:40:09,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:40:09,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:40:09,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:40:09,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:40:09,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,783 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:40:09,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:40:09,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:40:09,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:40:09,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (1/1) ... [2022-12-13 14:40:09,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:40:09,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:40:09,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:40:09,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:40:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-13 14:40:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-13 14:40:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-13 14:40:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-13 14:40:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-13 14:40:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-13 14:40:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-13 14:40:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-13 14:40:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-13 14:40:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-13 14:40:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-13 14:40:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-13 14:40:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-13 14:40:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-13 14:40:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-13 14:40:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-13 14:40:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-13 14:40:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-13 14:40:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-13 14:40:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-13 14:40:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-13 14:40:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-13 14:40:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-13 14:40:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-13 14:40:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-13 14:40:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:40:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-13 14:40:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-13 14:40:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-13 14:40:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-13 14:40:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-13 14:40:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-13 14:40:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-13 14:40:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-13 14:40:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-13 14:40:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-13 14:40:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-13 14:40:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-13 14:40:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-13 14:40:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-13 14:40:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-13 14:40:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-13 14:40:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-13 14:40:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-13 14:40:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:40:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-13 14:40:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-13 14:40:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:40:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:40:10,002 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:40:10,005 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:40:10,514 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:40:10,521 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:40:10,521 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 14:40:10,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:10 BoogieIcfgContainer [2022-12-13 14:40:10,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:40:10,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:40:10,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:40:10,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:40:10,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:40:09" (1/3) ... [2022-12-13 14:40:10,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f625ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:40:10, skipping insertion in model container [2022-12-13 14:40:10,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:09" (2/3) ... [2022-12-13 14:40:10,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f625ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:40:10, skipping insertion in model container [2022-12-13 14:40:10,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:10" (3/3) ... [2022-12-13 14:40:10,528 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product28.cil.c [2022-12-13 14:40:10,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:40:10,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:40:10,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:40:10,586 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4db8f922, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:40:10,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 14:40:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 332 states, 256 states have (on average 1.515625) internal successors, (388), 260 states have internal predecessors, (388), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-13 14:40:10,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-13 14:40:10,603 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:10,603 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:10,604 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:10,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:10,607 INFO L85 PathProgramCache]: Analyzing trace with hash 724686432, now seen corresponding path program 1 times [2022-12-13 14:40:10,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:10,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783523590] [2022-12-13 14:40:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:10,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 14:40:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 14:40:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 14:40:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 14:40:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 14:40:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 14:40:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 14:40:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 14:40:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:40:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:40:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 14:40:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 14:40:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 14:40:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,080 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 14:40:11,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:11,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783523590] [2022-12-13 14:40:11,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783523590] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:40:11,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411187519] [2022-12-13 14:40:11,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:11,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:40:11,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:40:11,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:40:11,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 14:40:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 14:40:11,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:40:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 14:40:11,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:40:11,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411187519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:11,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:40:11,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2022-12-13 14:40:11,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075384882] [2022-12-13 14:40:11,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:11,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:40:11,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:11,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:40:11,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:40:11,399 INFO L87 Difference]: Start difference. First operand has 332 states, 256 states have (on average 1.515625) internal successors, (388), 260 states have internal predecessors, (388), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:11,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:11,443 INFO L93 Difference]: Finished difference Result 515 states and 746 transitions. [2022-12-13 14:40:11,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:40:11,445 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 123 [2022-12-13 14:40:11,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:11,454 INFO L225 Difference]: With dead ends: 515 [2022-12-13 14:40:11,455 INFO L226 Difference]: Without dead ends: 325 [2022-12-13 14:40:11,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:40:11,460 INFO L413 NwaCegarLoop]: 488 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, 488 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 [2022-12-13 14:40:11,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:40:11,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-12-13 14:40:11,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-12-13 14:40:11,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 250 states have (on average 1.508) internal successors, (377), 253 states have internal predecessors, (377), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-13 14:40:11,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 480 transitions. [2022-12-13 14:40:11,509 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 480 transitions. Word has length 123 [2022-12-13 14:40:11,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:11,511 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 480 transitions. [2022-12-13 14:40:11,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:11,511 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 480 transitions. [2022-12-13 14:40:11,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-12-13 14:40:11,516 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:11,516 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:11,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:40:11,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 14:40:11,718 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:11,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:11,719 INFO L85 PathProgramCache]: Analyzing trace with hash -168515173, now seen corresponding path program 1 times [2022-12-13 14:40:11,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:11,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741208781] [2022-12-13 14:40:11,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:11,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:11,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 14:40:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 14:40:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 14:40:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 14:40:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 14:40:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 14:40:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 14:40:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 14:40:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 14:40:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 14:40:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 14:40:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 14:40:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:40:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 14:40:12,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:12,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741208781] [2022-12-13 14:40:12,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741208781] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:40:12,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655019968] [2022-12-13 14:40:12,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:12,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:40:12,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:40:12,056 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:40:12,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 14:40:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:40:12,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:40:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 14:40:12,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:40:12,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655019968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:12,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:40:12,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-12-13 14:40:12,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154542288] [2022-12-13 14:40:12,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:12,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:40:12,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:12,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:40:12,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:40:12,296 INFO L87 Difference]: Start difference. First operand 325 states and 480 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:12,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:12,341 INFO L93 Difference]: Finished difference Result 505 states and 727 transitions. [2022-12-13 14:40:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:40:12,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2022-12-13 14:40:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:12,345 INFO L225 Difference]: With dead ends: 505 [2022-12-13 14:40:12,345 INFO L226 Difference]: Without dead ends: 328 [2022-12-13 14:40:12,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:40:12,348 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 1 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:12,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 954 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:40:12,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-12-13 14:40:12,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 327. [2022-12-13 14:40:12,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 252 states have (on average 1.503968253968254) internal successors, (379), 255 states have internal predecessors, (379), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-13 14:40:12,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 482 transitions. [2022-12-13 14:40:12,372 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 482 transitions. Word has length 124 [2022-12-13 14:40:12,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:12,373 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 482 transitions. [2022-12-13 14:40:12,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:12,373 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 482 transitions. [2022-12-13 14:40:12,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-13 14:40:12,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:12,378 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:12,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 14:40:12,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-13 14:40:12,579 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:12,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1666817116, now seen corresponding path program 1 times [2022-12-13 14:40:12,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:12,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944119279] [2022-12-13 14:40:12,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:12,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 14:40:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 14:40:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 14:40:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 14:40:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 14:40:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 14:40:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 14:40:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 14:40:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:40:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 14:40:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 14:40:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:40:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 14:40:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:12,796 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 14:40:12,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:12,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944119279] [2022-12-13 14:40:12,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944119279] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:40:12,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024959614] [2022-12-13 14:40:12,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:12,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:40:12,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:40:12,799 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:40:12,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 14:40:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:40:13,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:40:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 14:40:13,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:40:13,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024959614] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:13,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:40:13,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-12-13 14:40:13,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345563615] [2022-12-13 14:40:13,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:13,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:40:13,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:13,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:40:13,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:40:13,035 INFO L87 Difference]: Start difference. First operand 327 states and 482 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:13,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:13,077 INFO L93 Difference]: Finished difference Result 679 states and 1015 transitions. [2022-12-13 14:40:13,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:40:13,077 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), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 130 [2022-12-13 14:40:13,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:13,081 INFO L225 Difference]: With dead ends: 679 [2022-12-13 14:40:13,081 INFO L226 Difference]: Without dead ends: 379 [2022-12-13 14:40:13,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:40:13,084 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 99 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:13,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 935 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:40:13,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-12-13 14:40:13,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 371. [2022-12-13 14:40:13,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 285 states have (on average 1.5192982456140351) internal successors, (433), 288 states have internal predecessors, (433), 63 states have call successors, (63), 22 states have call predecessors, (63), 22 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-13 14:40:13,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 558 transitions. [2022-12-13 14:40:13,113 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 558 transitions. Word has length 130 [2022-12-13 14:40:13,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:13,113 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 558 transitions. [2022-12-13 14:40:13,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:13,113 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 558 transitions. [2022-12-13 14:40:13,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-13 14:40:13,118 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:13,118 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:13,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 14:40:13,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:40:13,319 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:13,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:13,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1529458037, now seen corresponding path program 1 times [2022-12-13 14:40:13,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:13,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979853011] [2022-12-13 14:40:13,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:13,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 14:40:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 14:40:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 14:40:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 14:40:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 14:40:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 14:40:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 14:40:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 14:40:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 14:40:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 14:40:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 14:40:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 14:40:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 14:40:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,508 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 14:40:13,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:13,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979853011] [2022-12-13 14:40:13,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979853011] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:40:13,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015872078] [2022-12-13 14:40:13,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:13,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:40:13,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:40:13,510 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:40:13,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 14:40:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:13,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 14:40:13,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:40:13,787 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 14:40:13,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:40:13,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015872078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:13,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:40:13,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-12-13 14:40:13,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478858230] [2022-12-13 14:40:13,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:13,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:40:13,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:13,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:40:13,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:40:13,789 INFO L87 Difference]: Start difference. First operand 371 states and 558 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 14:40:13,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:13,849 INFO L93 Difference]: Finished difference Result 733 states and 1106 transitions. [2022-12-13 14:40:13,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:40:13,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2022-12-13 14:40:13,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:13,853 INFO L225 Difference]: With dead ends: 733 [2022-12-13 14:40:13,853 INFO L226 Difference]: Without dead ends: 373 [2022-12-13 14:40:13,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:40:13,855 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 117 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:13,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1747 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:40:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-12-13 14:40:13,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2022-12-13 14:40:13,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 286 states have (on average 1.5174825174825175) internal successors, (434), 290 states have internal predecessors, (434), 63 states have call successors, (63), 22 states have call predecessors, (63), 23 states have return successors, (64), 62 states have call predecessors, (64), 62 states have call successors, (64) [2022-12-13 14:40:13,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 561 transitions. [2022-12-13 14:40:13,880 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 561 transitions. Word has length 131 [2022-12-13 14:40:13,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:13,880 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 561 transitions. [2022-12-13 14:40:13,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 14:40:13,880 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 561 transitions. [2022-12-13 14:40:13,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-12-13 14:40:13,883 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:13,883 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:13,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 14:40:14,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:40:14,085 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:14,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:14,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1138910852, now seen corresponding path program 1 times [2022-12-13 14:40:14,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:14,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235539805] [2022-12-13 14:40:14,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:14,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 14:40:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 14:40:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 14:40:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 14:40:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 14:40:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 14:40:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 14:40:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 14:40:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:40:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 14:40:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 14:40:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 14:40:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,413 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 14:40:14,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:14,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235539805] [2022-12-13 14:40:14,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235539805] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:40:14,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651230124] [2022-12-13 14:40:14,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:14,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:40:14,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:40:14,414 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:40:14,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 14:40:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:14,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:40:14,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:40:14,670 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 14:40:14,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:40:14,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651230124] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:14,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:40:14,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2022-12-13 14:40:14,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731508539] [2022-12-13 14:40:14,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:14,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:40:14,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:14,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:40:14,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-13 14:40:14,673 INFO L87 Difference]: Start difference. First operand 373 states and 561 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 14:40:14,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:14,740 INFO L93 Difference]: Finished difference Result 735 states and 1111 transitions. [2022-12-13 14:40:14,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:40:14,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2022-12-13 14:40:14,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:14,744 INFO L225 Difference]: With dead ends: 735 [2022-12-13 14:40:14,744 INFO L226 Difference]: Without dead ends: 375 [2022-12-13 14:40:14,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:40:14,747 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 116 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:14,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1736 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:40:14,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-12-13 14:40:14,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2022-12-13 14:40:14,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 287 states have (on average 1.5156794425087108) internal successors, (435), 292 states have internal predecessors, (435), 63 states have call successors, (63), 22 states have call predecessors, (63), 24 states have return successors, (69), 62 states have call predecessors, (69), 62 states have call successors, (69) [2022-12-13 14:40:14,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 567 transitions. [2022-12-13 14:40:14,769 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 567 transitions. Word has length 132 [2022-12-13 14:40:14,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:14,770 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 567 transitions. [2022-12-13 14:40:14,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 14:40:14,770 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 567 transitions. [2022-12-13 14:40:14,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-13 14:40:14,773 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:14,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:14,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 14:40:14,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:40:14,974 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:14,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:14,974 INFO L85 PathProgramCache]: Analyzing trace with hash -760686457, now seen corresponding path program 1 times [2022-12-13 14:40:14,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:14,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31227790] [2022-12-13 14:40:14,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:14,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 14:40:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 14:40:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 14:40:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 14:40:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:40:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 14:40:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 14:40:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 14:40:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 14:40:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 14:40:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 14:40:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:15,158 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 14:40:15,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:15,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31227790] [2022-12-13 14:40:15,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31227790] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:15,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:15,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:40:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186922586] [2022-12-13 14:40:15,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:15,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:40:15,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:15,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:40:15,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:40:15,160 INFO L87 Difference]: Start difference. First operand 375 states and 567 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 14:40:16,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:16,352 INFO L93 Difference]: Finished difference Result 803 states and 1220 transitions. [2022-12-13 14:40:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:40:16,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 133 [2022-12-13 14:40:16,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:16,356 INFO L225 Difference]: With dead ends: 803 [2022-12-13 14:40:16,356 INFO L226 Difference]: Without dead ends: 451 [2022-12-13 14:40:16,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-12-13 14:40:16,358 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 889 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:16,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 814 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 14:40:16,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-12-13 14:40:16,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 375. [2022-12-13 14:40:16,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 287 states have (on average 1.5156794425087108) internal successors, (435), 292 states have internal predecessors, (435), 63 states have call successors, (63), 22 states have call predecessors, (63), 24 states have return successors, (68), 62 states have call predecessors, (68), 62 states have call successors, (68) [2022-12-13 14:40:16,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 566 transitions. [2022-12-13 14:40:16,400 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 566 transitions. Word has length 133 [2022-12-13 14:40:16,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:16,400 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 566 transitions. [2022-12-13 14:40:16,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 14:40:16,401 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 566 transitions. [2022-12-13 14:40:16,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 14:40:16,403 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:16,403 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:16,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:40:16,404 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:16,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:16,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2108324244, now seen corresponding path program 2 times [2022-12-13 14:40:16,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:16,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552788016] [2022-12-13 14:40:16,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:16,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 14:40:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 14:40:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 14:40:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:40:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 14:40:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 14:40:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 14:40:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 14:40:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 14:40:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 14:40:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 14:40:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:16,568 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 14:40:16,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:16,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552788016] [2022-12-13 14:40:16,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552788016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:16,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:16,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:40:16,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898412028] [2022-12-13 14:40:16,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:16,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:40:16,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:16,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:40:16,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:40:16,570 INFO L87 Difference]: Start difference. First operand 375 states and 566 transitions. Second operand has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 14:40:17,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:17,784 INFO L93 Difference]: Finished difference Result 805 states and 1223 transitions. [2022-12-13 14:40:17,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:40:17,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 134 [2022-12-13 14:40:17,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:17,787 INFO L225 Difference]: With dead ends: 805 [2022-12-13 14:40:17,787 INFO L226 Difference]: Without dead ends: 453 [2022-12-13 14:40:17,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-12-13 14:40:17,789 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 885 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 2251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:17,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 814 Invalid, 2251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 14:40:17,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-12-13 14:40:17,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 377. [2022-12-13 14:40:17,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 288 states have (on average 1.5138888888888888) internal successors, (436), 294 states have internal predecessors, (436), 63 states have call successors, (63), 22 states have call predecessors, (63), 25 states have return successors, (70), 62 states have call predecessors, (70), 62 states have call successors, (70) [2022-12-13 14:40:17,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 569 transitions. [2022-12-13 14:40:17,822 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 569 transitions. Word has length 134 [2022-12-13 14:40:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:17,822 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 569 transitions. [2022-12-13 14:40:17,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 14:40:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 569 transitions. [2022-12-13 14:40:17,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-13 14:40:17,825 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:17,825 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:17,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:40:17,825 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:17,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:17,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1642179564, now seen corresponding path program 1 times [2022-12-13 14:40:17,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:17,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796708507] [2022-12-13 14:40:17,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:17,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:17,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:17,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:17,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:17,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:17,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:18,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 14:40:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:18,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 14:40:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:18,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 14:40:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:18,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 14:40:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:18,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 14:40:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:18,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 14:40:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:18,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 14:40:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:18,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 14:40:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:18,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 14:40:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:18,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 14:40:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:18,032 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 14:40:18,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:18,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796708507] [2022-12-13 14:40:18,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796708507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:18,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:18,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 14:40:18,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132875049] [2022-12-13 14:40:18,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:18,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:40:18,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:18,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:40:18,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:40:18,034 INFO L87 Difference]: Start difference. First operand 377 states and 569 transitions. Second operand has 11 states, 10 states have (on average 8.7) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 14:40:19,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:19,641 INFO L93 Difference]: Finished difference Result 803 states and 1218 transitions. [2022-12-13 14:40:19,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:40:19,641 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.7) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 135 [2022-12-13 14:40:19,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:19,643 INFO L225 Difference]: With dead ends: 803 [2022-12-13 14:40:19,643 INFO L226 Difference]: Without dead ends: 453 [2022-12-13 14:40:19,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-12-13 14:40:19,644 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1000 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 3348 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 3664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 3348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:19,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1100 Invalid, 3664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 3348 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 14:40:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-12-13 14:40:19,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 377. [2022-12-13 14:40:19,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 288 states have (on average 1.5138888888888888) internal successors, (436), 294 states have internal predecessors, (436), 63 states have call successors, (63), 22 states have call predecessors, (63), 25 states have return successors, (69), 62 states have call predecessors, (69), 62 states have call successors, (69) [2022-12-13 14:40:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 568 transitions. [2022-12-13 14:40:19,664 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 568 transitions. Word has length 135 [2022-12-13 14:40:19,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:19,665 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 568 transitions. [2022-12-13 14:40:19,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.7) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 14:40:19,665 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 568 transitions. [2022-12-13 14:40:19,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-12-13 14:40:19,666 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:19,666 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:19,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:40:19,666 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:19,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:19,667 INFO L85 PathProgramCache]: Analyzing trace with hash -530576235, now seen corresponding path program 2 times [2022-12-13 14:40:19,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:19,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834184013] [2022-12-13 14:40:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:19,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 14:40:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 14:40:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 14:40:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 14:40:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:40:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 14:40:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 14:40:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:40:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 14:40:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 14:40:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:19,823 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 14:40:19,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:19,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834184013] [2022-12-13 14:40:19,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834184013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:19,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:19,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 14:40:19,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506376131] [2022-12-13 14:40:19,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:19,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:40:19,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:19,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:40:19,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:40:19,825 INFO L87 Difference]: Start difference. First operand 377 states and 568 transitions. Second operand has 11 states, 10 states have (on average 8.8) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 14:40:21,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:21,295 INFO L93 Difference]: Finished difference Result 805 states and 1224 transitions. [2022-12-13 14:40:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:40:21,295 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 136 [2022-12-13 14:40:21,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:21,297 INFO L225 Difference]: With dead ends: 805 [2022-12-13 14:40:21,297 INFO L226 Difference]: Without dead ends: 455 [2022-12-13 14:40:21,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-12-13 14:40:21,298 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 996 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 3373 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 3687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 3373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:21,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 1100 Invalid, 3687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 3373 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 14:40:21,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-12-13 14:40:21,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 379. [2022-12-13 14:40:21,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 289 states have (on average 1.5121107266435987) internal successors, (437), 296 states have internal predecessors, (437), 63 states have call successors, (63), 22 states have call predecessors, (63), 26 states have return successors, (74), 62 states have call predecessors, (74), 62 states have call successors, (74) [2022-12-13 14:40:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 574 transitions. [2022-12-13 14:40:21,318 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 574 transitions. Word has length 136 [2022-12-13 14:40:21,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:21,318 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 574 transitions. [2022-12-13 14:40:21,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 14:40:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 574 transitions. [2022-12-13 14:40:21,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 14:40:21,320 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:21,320 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:21,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 14:40:21,320 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:21,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:21,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1375301743, now seen corresponding path program 1 times [2022-12-13 14:40:21,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:21,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543725502] [2022-12-13 14:40:21,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:21,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 14:40:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 14:40:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 14:40:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 14:40:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 14:40:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 14:40:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 14:40:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 14:40:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 14:40:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 14:40:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:21,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:21,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543725502] [2022-12-13 14:40:21,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543725502] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:40:21,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310256347] [2022-12-13 14:40:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:21,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:40:21,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:40:21,416 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:40:21,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 14:40:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:21,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 14:40:21,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:40:21,634 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:21,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:40:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:21,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310256347] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:40:21,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:40:21,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-12-13 14:40:21,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682655588] [2022-12-13 14:40:21,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:40:21,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:40:21,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:21,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:40:21,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:40:21,694 INFO L87 Difference]: Start difference. First operand 379 states and 574 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 7 states have internal predecessors, (123), 2 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-13 14:40:22,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:22,637 INFO L93 Difference]: Finished difference Result 959 states and 1522 transitions. [2022-12-13 14:40:22,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:40:22,637 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 7 states have internal predecessors, (123), 2 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 137 [2022-12-13 14:40:22,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:22,640 INFO L225 Difference]: With dead ends: 959 [2022-12-13 14:40:22,640 INFO L226 Difference]: Without dead ends: 782 [2022-12-13 14:40:22,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-12-13 14:40:22,641 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1331 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:22,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 1178 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 14:40:22,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2022-12-13 14:40:22,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 682. [2022-12-13 14:40:22,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 528 states have (on average 1.581439393939394) internal successors, (835), 535 states have internal predecessors, (835), 127 states have call successors, (127), 22 states have call predecessors, (127), 26 states have return successors, (148), 126 states have call predecessors, (148), 126 states have call successors, (148) [2022-12-13 14:40:22,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1110 transitions. [2022-12-13 14:40:22,677 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1110 transitions. Word has length 137 [2022-12-13 14:40:22,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:22,678 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 1110 transitions. [2022-12-13 14:40:22,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 7 states have internal predecessors, (123), 2 states have call successors, (36), 5 states have call predecessors, (36), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-13 14:40:22,678 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1110 transitions. [2022-12-13 14:40:22,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 14:40:22,680 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:22,680 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:22,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 14:40:22,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 14:40:22,882 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:22,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:22,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1023883246, now seen corresponding path program 1 times [2022-12-13 14:40:22,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:22,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536242253] [2022-12-13 14:40:22,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:22,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 14:40:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 14:40:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 14:40:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 14:40:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 14:40:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 14:40:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:40:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 14:40:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 14:40:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 14:40:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:22,999 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:22,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:22,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536242253] [2022-12-13 14:40:22,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536242253] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:22,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:22,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:22,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292263781] [2022-12-13 14:40:23,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:23,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:23,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:23,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:23,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:23,001 INFO L87 Difference]: Start difference. First operand 682 states and 1110 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:23,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:23,776 INFO L93 Difference]: Finished difference Result 1680 states and 2801 transitions. [2022-12-13 14:40:23,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:23,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2022-12-13 14:40:23,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:23,780 INFO L225 Difference]: With dead ends: 1680 [2022-12-13 14:40:23,780 INFO L226 Difference]: Without dead ends: 1066 [2022-12-13 14:40:23,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:40:23,781 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 869 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:23,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 683 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:40:23,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2022-12-13 14:40:23,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 982. [2022-12-13 14:40:23,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 764 states have (on average 1.5968586387434556) internal successors, (1220), 771 states have internal predecessors, (1220), 191 states have call successors, (191), 22 states have call predecessors, (191), 26 states have return successors, (222), 190 states have call predecessors, (222), 190 states have call successors, (222) [2022-12-13 14:40:23,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1633 transitions. [2022-12-13 14:40:23,838 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1633 transitions. Word has length 143 [2022-12-13 14:40:23,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:23,839 INFO L495 AbstractCegarLoop]: Abstraction has 982 states and 1633 transitions. [2022-12-13 14:40:23,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1633 transitions. [2022-12-13 14:40:23,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-12-13 14:40:23,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:23,842 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:23,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 14:40:23,842 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:23,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:23,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1122517832, now seen corresponding path program 1 times [2022-12-13 14:40:23,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:23,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52986295] [2022-12-13 14:40:23,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:23,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 14:40:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 14:40:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 14:40:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 14:40:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 14:40:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 14:40:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 14:40:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 14:40:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 14:40:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 14:40:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:23,914 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:23,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:23,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52986295] [2022-12-13 14:40:23,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52986295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:23,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:23,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:23,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114125905] [2022-12-13 14:40:23,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:23,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:23,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:23,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:23,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:23,916 INFO L87 Difference]: Start difference. First operand 982 states and 1633 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:24,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:24,708 INFO L93 Difference]: Finished difference Result 2395 states and 4046 transitions. [2022-12-13 14:40:24,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:24,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2022-12-13 14:40:24,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:24,719 INFO L225 Difference]: With dead ends: 2395 [2022-12-13 14:40:24,719 INFO L226 Difference]: Without dead ends: 1534 [2022-12-13 14:40:24,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:40:24,722 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 867 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:24,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 670 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:40:24,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2022-12-13 14:40:24,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1450. [2022-12-13 14:40:24,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1137 states have (on average 1.6068601583113455) internal successors, (1827), 1144 states have internal predecessors, (1827), 286 states have call successors, (286), 22 states have call predecessors, (286), 26 states have return successors, (317), 285 states have call predecessors, (317), 285 states have call successors, (317) [2022-12-13 14:40:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2430 transitions. [2022-12-13 14:40:24,802 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2430 transitions. Word has length 144 [2022-12-13 14:40:24,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:24,802 INFO L495 AbstractCegarLoop]: Abstraction has 1450 states and 2430 transitions. [2022-12-13 14:40:24,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:24,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2430 transitions. [2022-12-13 14:40:24,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 14:40:24,807 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:24,807 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:24,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 14:40:24,807 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:24,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash -254502256, now seen corresponding path program 1 times [2022-12-13 14:40:24,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:24,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898058427] [2022-12-13 14:40:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:24,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 14:40:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 14:40:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 14:40:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 14:40:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:40:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 14:40:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 14:40:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 14:40:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 14:40:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 14:40:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:24,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:24,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898058427] [2022-12-13 14:40:24,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898058427] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:24,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:24,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:24,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933646509] [2022-12-13 14:40:24,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:24,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:24,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:24,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:24,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:24,894 INFO L87 Difference]: Start difference. First operand 1450 states and 2430 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:25,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:25,795 INFO L93 Difference]: Finished difference Result 3442 states and 5887 transitions. [2022-12-13 14:40:25,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:25,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2022-12-13 14:40:25,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:25,805 INFO L225 Difference]: With dead ends: 3442 [2022-12-13 14:40:25,805 INFO L226 Difference]: Without dead ends: 2238 [2022-12-13 14:40:25,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:40:25,809 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 865 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:25,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 662 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:40:25,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states. [2022-12-13 14:40:25,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 2154. [2022-12-13 14:40:25,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2154 states, 1718 states have (on average 1.6146682188591386) internal successors, (2774), 1725 states have internal predecessors, (2774), 409 states have call successors, (409), 22 states have call predecessors, (409), 26 states have return successors, (456), 408 states have call predecessors, (456), 408 states have call successors, (456) [2022-12-13 14:40:25,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2154 states to 2154 states and 3639 transitions. [2022-12-13 14:40:25,935 INFO L78 Accepts]: Start accepts. Automaton has 2154 states and 3639 transitions. Word has length 145 [2022-12-13 14:40:25,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:25,936 INFO L495 AbstractCegarLoop]: Abstraction has 2154 states and 3639 transitions. [2022-12-13 14:40:25,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:25,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2154 states and 3639 transitions. [2022-12-13 14:40:25,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-12-13 14:40:25,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:25,942 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:25,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 14:40:25,942 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:25,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:25,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1756434345, now seen corresponding path program 1 times [2022-12-13 14:40:25,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:25,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953242935] [2022-12-13 14:40:25,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:25,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:25,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:25,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:25,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:25,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:25,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:26,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 14:40:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:26,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 14:40:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:40:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:26,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 14:40:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:26,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 14:40:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:26,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 14:40:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:26,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 14:40:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 14:40:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:26,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 14:40:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 14:40:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:26,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:26,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953242935] [2022-12-13 14:40:26,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953242935] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:26,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:26,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:26,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733496215] [2022-12-13 14:40:26,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:26,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:26,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:26,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:26,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:26,021 INFO L87 Difference]: Start difference. First operand 2154 states and 3639 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:26,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:26,978 INFO L93 Difference]: Finished difference Result 5061 states and 8741 transitions. [2022-12-13 14:40:26,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:26,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 146 [2022-12-13 14:40:26,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:26,988 INFO L225 Difference]: With dead ends: 5061 [2022-12-13 14:40:26,988 INFO L226 Difference]: Without dead ends: 3357 [2022-12-13 14:40:26,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:40:26,992 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 863 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:26,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 662 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:40:26,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2022-12-13 14:40:27,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 3273. [2022-12-13 14:40:27,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3273 states, 2658 states have (on average 1.6196388261851016) internal successors, (4305), 2665 states have internal predecessors, (4305), 588 states have call successors, (588), 22 states have call predecessors, (588), 26 states have return successors, (661), 587 states have call predecessors, (661), 587 states have call successors, (661) [2022-12-13 14:40:27,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 5554 transitions. [2022-12-13 14:40:27,177 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 5554 transitions. Word has length 146 [2022-12-13 14:40:27,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:27,178 INFO L495 AbstractCegarLoop]: Abstraction has 3273 states and 5554 transitions. [2022-12-13 14:40:27,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:27,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 5554 transitions. [2022-12-13 14:40:27,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 14:40:27,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:27,186 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:27,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 14:40:27,186 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:27,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:27,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2111033652, now seen corresponding path program 1 times [2022-12-13 14:40:27,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:27,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543795452] [2022-12-13 14:40:27,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:27,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 14:40:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 14:40:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 14:40:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:40:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 14:40:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 14:40:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 14:40:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 14:40:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 14:40:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 14:40:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:27,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:27,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543795452] [2022-12-13 14:40:27,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543795452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:27,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:27,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:27,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432461072] [2022-12-13 14:40:27,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:27,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:27,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:27,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:27,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:27,266 INFO L87 Difference]: Start difference. First operand 3273 states and 5554 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:28,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:28,286 INFO L93 Difference]: Finished difference Result 7979 states and 13840 transitions. [2022-12-13 14:40:28,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:28,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 147 [2022-12-13 14:40:28,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:28,302 INFO L225 Difference]: With dead ends: 7979 [2022-12-13 14:40:28,302 INFO L226 Difference]: Without dead ends: 5388 [2022-12-13 14:40:28,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:40:28,307 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 861 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:28,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 697 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:40:28,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5388 states. [2022-12-13 14:40:28,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5388 to 5304. [2022-12-13 14:40:28,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5304 states, 4313 states have (on average 1.6130303732900533) internal successors, (6957), 4320 states have internal predecessors, (6957), 964 states have call successors, (964), 22 states have call predecessors, (964), 26 states have return successors, (1081), 963 states have call predecessors, (1081), 963 states have call successors, (1081) [2022-12-13 14:40:28,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5304 states to 5304 states and 9002 transitions. [2022-12-13 14:40:28,627 INFO L78 Accepts]: Start accepts. Automaton has 5304 states and 9002 transitions. Word has length 147 [2022-12-13 14:40:28,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:28,627 INFO L495 AbstractCegarLoop]: Abstraction has 5304 states and 9002 transitions. [2022-12-13 14:40:28,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:28,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5304 states and 9002 transitions. [2022-12-13 14:40:28,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-13 14:40:28,639 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:28,639 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:28,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 14:40:28,640 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:28,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:28,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1662742381, now seen corresponding path program 1 times [2022-12-13 14:40:28,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:28,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558629720] [2022-12-13 14:40:28,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:28,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 14:40:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 14:40:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 14:40:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 14:40:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 14:40:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 14:40:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 14:40:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 14:40:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 14:40:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 14:40:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:28,717 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:28,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:28,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558629720] [2022-12-13 14:40:28,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558629720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:28,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:28,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:28,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399293526] [2022-12-13 14:40:28,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:28,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:28,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:28,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:28,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:28,718 INFO L87 Difference]: Start difference. First operand 5304 states and 9002 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:30,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:30,116 INFO L93 Difference]: Finished difference Result 13121 states and 22749 transitions. [2022-12-13 14:40:30,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:30,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2022-12-13 14:40:30,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:30,147 INFO L225 Difference]: With dead ends: 13121 [2022-12-13 14:40:30,148 INFO L226 Difference]: Without dead ends: 8876 [2022-12-13 14:40:30,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:40:30,157 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 859 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:30,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 663 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 14:40:30,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8876 states. [2022-12-13 14:40:30,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8876 to 8792. [2022-12-13 14:40:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8792 states, 7195 states have (on average 1.6109798471160528) internal successors, (11591), 7202 states have internal predecessors, (11591), 1570 states have call successors, (1570), 22 states have call predecessors, (1570), 26 states have return successors, (1765), 1569 states have call predecessors, (1765), 1569 states have call successors, (1765) [2022-12-13 14:40:30,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8792 states to 8792 states and 14926 transitions. [2022-12-13 14:40:30,648 INFO L78 Accepts]: Start accepts. Automaton has 8792 states and 14926 transitions. Word has length 148 [2022-12-13 14:40:30,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:30,649 INFO L495 AbstractCegarLoop]: Abstraction has 8792 states and 14926 transitions. [2022-12-13 14:40:30,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand 8792 states and 14926 transitions. [2022-12-13 14:40:30,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-13 14:40:30,667 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:30,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:30,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 14:40:30,667 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:30,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:30,667 INFO L85 PathProgramCache]: Analyzing trace with hash -57197746, now seen corresponding path program 1 times [2022-12-13 14:40:30,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:30,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952832264] [2022-12-13 14:40:30,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:30,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 14:40:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 14:40:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 14:40:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 14:40:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 14:40:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 14:40:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 14:40:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 14:40:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 14:40:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 14:40:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:30,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:30,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952832264] [2022-12-13 14:40:30,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952832264] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:30,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:30,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:30,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816407733] [2022-12-13 14:40:30,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:30,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:30,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:30,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:30,756 INFO L87 Difference]: Start difference. First operand 8792 states and 14926 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:32,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:32,486 INFO L93 Difference]: Finished difference Result 22780 states and 39455 transitions. [2022-12-13 14:40:32,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:32,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 149 [2022-12-13 14:40:32,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:32,540 INFO L225 Difference]: With dead ends: 22780 [2022-12-13 14:40:32,540 INFO L226 Difference]: Without dead ends: 15469 [2022-12-13 14:40:32,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:40:32,561 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 857 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:32,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 697 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 14:40:32,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15469 states. [2022-12-13 14:40:33,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15469 to 15385. [2022-12-13 14:40:33,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15385 states, 12585 states have (on average 1.601668653158522) internal successors, (20157), 12592 states have internal predecessors, (20157), 2773 states have call successors, (2773), 22 states have call predecessors, (2773), 26 states have return successors, (3112), 2772 states have call predecessors, (3112), 2772 states have call successors, (3112) [2022-12-13 14:40:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15385 states to 15385 states and 26042 transitions. [2022-12-13 14:40:33,493 INFO L78 Accepts]: Start accepts. Automaton has 15385 states and 26042 transitions. Word has length 149 [2022-12-13 14:40:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:33,494 INFO L495 AbstractCegarLoop]: Abstraction has 15385 states and 26042 transitions. [2022-12-13 14:40:33,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 15385 states and 26042 transitions. [2022-12-13 14:40:33,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-13 14:40:33,540 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:33,541 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:33,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 14:40:33,541 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:33,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:33,541 INFO L85 PathProgramCache]: Analyzing trace with hash 2068162414, now seen corresponding path program 1 times [2022-12-13 14:40:33,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:33,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003597946] [2022-12-13 14:40:33,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:33,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 14:40:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 14:40:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 14:40:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 14:40:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 14:40:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:40:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 14:40:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 14:40:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 14:40:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 14:40:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:33,606 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:33,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:33,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003597946] [2022-12-13 14:40:33,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003597946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:33,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:33,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:33,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013510169] [2022-12-13 14:40:33,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:33,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:33,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:33,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:33,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:33,607 INFO L87 Difference]: Start difference. First operand 15385 states and 26042 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:35,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:35,967 INFO L93 Difference]: Finished difference Result 40736 states and 70438 transitions. [2022-12-13 14:40:35,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:35,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 150 [2022-12-13 14:40:35,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:36,035 INFO L225 Difference]: With dead ends: 40736 [2022-12-13 14:40:36,035 INFO L226 Difference]: Without dead ends: 27439 [2022-12-13 14:40:36,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:40:36,057 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 855 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:36,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 663 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:40:36,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27439 states. [2022-12-13 14:40:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27439 to 27355. [2022-12-13 14:40:37,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27355 states, 22516 states have (on average 1.5973085805649316) internal successors, (35965), 22523 states have internal predecessors, (35965), 4812 states have call successors, (4812), 22 states have call predecessors, (4812), 26 states have return successors, (5425), 4811 states have call predecessors, (5425), 4811 states have call successors, (5425) [2022-12-13 14:40:37,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27355 states to 27355 states and 46202 transitions. [2022-12-13 14:40:37,797 INFO L78 Accepts]: Start accepts. Automaton has 27355 states and 46202 transitions. Word has length 150 [2022-12-13 14:40:37,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:37,797 INFO L495 AbstractCegarLoop]: Abstraction has 27355 states and 46202 transitions. [2022-12-13 14:40:37,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:37,798 INFO L276 IsEmpty]: Start isEmpty. Operand 27355 states and 46202 transitions. [2022-12-13 14:40:37,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-13 14:40:37,829 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:37,829 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:37,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 14:40:37,829 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:37,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:37,829 INFO L85 PathProgramCache]: Analyzing trace with hash 447637552, now seen corresponding path program 1 times [2022-12-13 14:40:37,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:37,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811801446] [2022-12-13 14:40:37,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:37,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 14:40:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 14:40:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 14:40:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 14:40:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 14:40:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 14:40:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 14:40:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 14:40:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 14:40:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 14:40:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:37,903 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:37,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:37,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811801446] [2022-12-13 14:40:37,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811801446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:37,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:37,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:37,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106928775] [2022-12-13 14:40:37,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:37,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:37,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:37,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:37,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:37,905 INFO L87 Difference]: Start difference. First operand 27355 states and 46202 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:41,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:41,582 INFO L93 Difference]: Finished difference Result 74523 states and 128037 transitions. [2022-12-13 14:40:41,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:41,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2022-12-13 14:40:41,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:41,710 INFO L225 Difference]: With dead ends: 74523 [2022-12-13 14:40:41,710 INFO L226 Difference]: Without dead ends: 49988 [2022-12-13 14:40:41,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:40:41,755 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 853 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:41,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 663 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:40:41,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49988 states. [2022-12-13 14:40:44,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49988 to 49904. [2022-12-13 14:40:44,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49904 states, 41350 states have (on average 1.5914389359129384) internal successors, (65806), 41357 states have internal predecessors, (65806), 8527 states have call successors, (8527), 22 states have call predecessors, (8527), 26 states have return successors, (9672), 8526 states have call predecessors, (9672), 8526 states have call successors, (9672) [2022-12-13 14:40:44,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49904 states to 49904 states and 84005 transitions. [2022-12-13 14:40:44,741 INFO L78 Accepts]: Start accepts. Automaton has 49904 states and 84005 transitions. Word has length 151 [2022-12-13 14:40:44,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:44,741 INFO L495 AbstractCegarLoop]: Abstraction has 49904 states and 84005 transitions. [2022-12-13 14:40:44,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:44,741 INFO L276 IsEmpty]: Start isEmpty. Operand 49904 states and 84005 transitions. [2022-12-13 14:40:44,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-13 14:40:44,800 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:44,800 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:44,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 14:40:44,800 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:44,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1734203890, now seen corresponding path program 1 times [2022-12-13 14:40:44,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:44,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583771886] [2022-12-13 14:40:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:44,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 14:40:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 14:40:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 14:40:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 14:40:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 14:40:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 14:40:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 14:40:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 14:40:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 14:40:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 14:40:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:44,894 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:40:44,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:44,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583771886] [2022-12-13 14:40:44,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583771886] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:44,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:44,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:40:44,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330362626] [2022-12-13 14:40:44,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:44,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:40:44,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:44,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:40:44,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:40:44,896 INFO L87 Difference]: Start difference. First operand 49904 states and 84005 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:50,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:50,443 INFO L93 Difference]: Finished difference Result 93009 states and 160168 transitions. [2022-12-13 14:40:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:40:50,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2022-12-13 14:40:50,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:50,694 INFO L225 Difference]: With dead ends: 93009 [2022-12-13 14:40:50,694 INFO L226 Difference]: Without dead ends: 92832 [2022-12-13 14:40:50,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:40:50,726 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 851 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:50,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 665 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 14:40:50,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92832 states. [2022-12-13 14:40:56,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92832 to 92748. [2022-12-13 14:40:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92748 states, 77395 states have (on average 1.5839782931713935) internal successors, (122592), 77402 states have internal predecessors, (122592), 15326 states have call successors, (15326), 22 states have call predecessors, (15326), 26 states have return successors, (17517), 15325 states have call predecessors, (17517), 15325 states have call successors, (17517) [2022-12-13 14:40:56,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92748 states to 92748 states and 155435 transitions. [2022-12-13 14:40:56,832 INFO L78 Accepts]: Start accepts. Automaton has 92748 states and 155435 transitions. Word has length 152 [2022-12-13 14:40:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:56,833 INFO L495 AbstractCegarLoop]: Abstraction has 92748 states and 155435 transitions. [2022-12-13 14:40:56,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:40:56,833 INFO L276 IsEmpty]: Start isEmpty. Operand 92748 states and 155435 transitions. [2022-12-13 14:40:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-12-13 14:40:56,890 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:56,890 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:40:56,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 14:40:56,891 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:40:56,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:56,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1681709999, now seen corresponding path program 1 times [2022-12-13 14:40:56,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:56,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676330285] [2022-12-13 14:40:56,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:40:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:40:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:40:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:40:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:40:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:40:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:40:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 14:40:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 14:40:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 14:40:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 14:40:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 14:40:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 14:40:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 14:40:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 14:40:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 14:40:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,162 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 14:40:57,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:57,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676330285] [2022-12-13 14:40:57,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676330285] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:40:57,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152401425] [2022-12-13 14:40:57,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:57,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:40:57,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:40:57,164 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:40:57,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 14:40:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:57,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 14:40:57,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:40:57,524 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 14:40:57,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:40:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 14:40:57,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152401425] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:40:57,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 14:40:57,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 30 [2022-12-13 14:40:57,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919025067] [2022-12-13 14:40:57,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 14:40:57,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-13 14:40:57,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:57,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-13 14:40:57,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-12-13 14:40:57,786 INFO L87 Difference]: Start difference. First operand 92748 states and 155435 transitions. Second operand has 30 states, 29 states have (on average 8.655172413793103) internal successors, (251), 23 states have internal predecessors, (251), 9 states have call successors, (47), 11 states have call predecessors, (47), 11 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) [2022-12-13 14:41:47,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:41:47,244 INFO L93 Difference]: Finished difference Result 555116 states and 979324 transitions. [2022-12-13 14:41:47,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-12-13 14:41:47,245 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 8.655172413793103) internal successors, (251), 23 states have internal predecessors, (251), 9 states have call successors, (47), 11 states have call predecessors, (47), 11 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) Word has length 153 [2022-12-13 14:41:47,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:41:49,571 INFO L225 Difference]: With dead ends: 555116 [2022-12-13 14:41:49,571 INFO L226 Difference]: Without dead ends: 554945 [2022-12-13 14:41:49,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6166 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2723, Invalid=17017, Unknown=0, NotChecked=0, Total=19740 [2022-12-13 14:41:49,757 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 7197 mSDsluCounter, 9938 mSDsCounter, 0 mSdLazyCounter, 33350 mSolverCounterSat, 6603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7221 SdHoareTripleChecker+Valid, 10536 SdHoareTripleChecker+Invalid, 39953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6603 IncrementalHoareTripleChecker+Valid, 33350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:41:49,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7221 Valid, 10536 Invalid, 39953 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6603 Valid, 33350 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2022-12-13 14:41:50,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554945 states. [2022-12-13 14:42:22,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554945 to 369525. [2022-12-13 14:42:22,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369525 states, 308490 states have (on average 1.5848487795390451) internal successors, (488910), 308298 states have internal predecessors, (488910), 60896 states have call successors, (60896), 120 states have call predecessors, (60896), 138 states have return successors, (84850), 61118 states have call predecessors, (84850), 60890 states have call successors, (84850) [2022-12-13 14:42:24,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369525 states to 369525 states and 634656 transitions. [2022-12-13 14:42:24,082 INFO L78 Accepts]: Start accepts. Automaton has 369525 states and 634656 transitions. Word has length 153 [2022-12-13 14:42:24,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:42:24,082 INFO L495 AbstractCegarLoop]: Abstraction has 369525 states and 634656 transitions. [2022-12-13 14:42:24,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 8.655172413793103) internal successors, (251), 23 states have internal predecessors, (251), 9 states have call successors, (47), 11 states have call predecessors, (47), 11 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) [2022-12-13 14:42:24,082 INFO L276 IsEmpty]: Start isEmpty. Operand 369525 states and 634656 transitions. [2022-12-13 14:42:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-13 14:42:24,407 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:42:24,408 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:42:24,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 14:42:24,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:42:24,609 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:42:24,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:42:24,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1676356630, now seen corresponding path program 1 times [2022-12-13 14:42:24,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:42:24,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079438349] [2022-12-13 14:42:24,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:24,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:42:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:42:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:42:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:42:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:42:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:42:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:42:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:42:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 14:42:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 14:42:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 14:42:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 14:42:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 14:42:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 14:42:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 14:42:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 14:42:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 14:42:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:24,889 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 14:42:24,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:42:24,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079438349] [2022-12-13 14:42:24,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079438349] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:42:24,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436442774] [2022-12-13 14:42:24,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:42:24,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:42:24,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:42:24,891 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:42:24,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 14:42:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:42:25,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 14:42:25,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:42:25,223 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 14:42:25,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:42:25,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436442774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:42:25,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:42:25,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2022-12-13 14:42:25,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056518402] [2022-12-13 14:42:25,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:42:25,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:42:25,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:42:25,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:42:25,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-12-13 14:42:25,225 INFO L87 Difference]: Start difference. First operand 369525 states and 634656 transitions. Second operand has 9 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 14:42:50,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:42:50,643 INFO L93 Difference]: Finished difference Result 371057 states and 636883 transitions. [2022-12-13 14:42:50,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:42:50,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 155 [2022-12-13 14:42:50,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:42:52,021 INFO L225 Difference]: With dead ends: 371057 [2022-12-13 14:42:52,021 INFO L226 Difference]: Without dead ends: 369777 [2022-12-13 14:42:52,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-12-13 14:42:52,133 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 687 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:42:52,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 3216 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:42:52,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369777 states. [2022-12-13 14:43:21,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369777 to 369765. [2022-12-13 14:43:22,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369765 states, 308656 states have (on average 1.5847091908143693) internal successors, (489130), 308472 states have internal predecessors, (489130), 60964 states have call successors, (60964), 126 states have call predecessors, (60964), 144 states have return successors, (84954), 61184 states have call predecessors, (84954), 60958 states have call successors, (84954) [2022-12-13 14:43:23,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369765 states to 369765 states and 635048 transitions. [2022-12-13 14:43:23,368 INFO L78 Accepts]: Start accepts. Automaton has 369765 states and 635048 transitions. Word has length 155 [2022-12-13 14:43:23,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:43:23,368 INFO L495 AbstractCegarLoop]: Abstraction has 369765 states and 635048 transitions. [2022-12-13 14:43:23,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 4 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 14:43:23,368 INFO L276 IsEmpty]: Start isEmpty. Operand 369765 states and 635048 transitions. [2022-12-13 14:43:23,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-13 14:43:23,837 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:43:23,837 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:43:23,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 14:43:24,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-12-13 14:43:24,039 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:43:24,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:43:24,040 INFO L85 PathProgramCache]: Analyzing trace with hash 287750850, now seen corresponding path program 1 times [2022-12-13 14:43:24,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:43:24,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964790275] [2022-12-13 14:43:24,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:24,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:43:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:43:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:43:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:43:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 14:43:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 14:43:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 14:43:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 14:43:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:43:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 14:43:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 14:43:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 14:43:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 14:43:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 14:43:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 14:43:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 14:43:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 14:43:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 14:43:24,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:43:24,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964790275] [2022-12-13 14:43:24,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964790275] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:43:24,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240406855] [2022-12-13 14:43:24,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:43:24,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:43:24,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:43:24,174 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:43:24,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 14:43:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:43:24,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:43:24,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:43:24,355 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 14:43:24,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:43:24,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240406855] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:43:24,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:43:24,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-12-13 14:43:24,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854811800] [2022-12-13 14:43:24,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:43:24,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:43:24,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:43:24,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:43:24,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:43:24,357 INFO L87 Difference]: Start difference. First operand 369765 states and 635048 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:43:51,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:43:51,694 INFO L93 Difference]: Finished difference Result 554651 states and 956900 transitions. [2022-12-13 14:43:51,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:43:51,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2022-12-13 14:43:51,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:43:53,050 INFO L225 Difference]: With dead ends: 554651 [2022-12-13 14:43:53,051 INFO L226 Difference]: Without dead ends: 369781 [2022-12-13 14:43:53,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:43:53,535 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 116 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:43:53,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1735 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:43:53,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369781 states. [2022-12-13 14:44:25,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369781 to 369765. [2022-12-13 14:44:26,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369765 states, 308656 states have (on average 1.5847027111088072) internal successors, (489128), 308472 states have internal predecessors, (489128), 60964 states have call successors, (60964), 126 states have call predecessors, (60964), 144 states have return successors, (84954), 61184 states have call predecessors, (84954), 60958 states have call successors, (84954) [2022-12-13 14:44:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369765 states to 369765 states and 635046 transitions. [2022-12-13 14:44:27,634 INFO L78 Accepts]: Start accepts. Automaton has 369765 states and 635046 transitions. Word has length 155 [2022-12-13 14:44:27,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:27,634 INFO L495 AbstractCegarLoop]: Abstraction has 369765 states and 635046 transitions. [2022-12-13 14:44:27,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 14:44:27,635 INFO L276 IsEmpty]: Start isEmpty. Operand 369765 states and 635046 transitions. [2022-12-13 14:44:28,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-13 14:44:28,065 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:28,065 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:44:28,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 14:44:28,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:44:28,266 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:44:28,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:28,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1356393648, now seen corresponding path program 1 times [2022-12-13 14:44:28,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:44:28,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848212540] [2022-12-13 14:44:28,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:28,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:44:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:44:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:44:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:44:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:44:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:44:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:44:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 14:44:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 14:44:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 14:44:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:44:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 14:44:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 14:44:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 14:44:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 14:44:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 14:44:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 14:44:28,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:28,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848212540] [2022-12-13 14:44:28,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848212540] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:44:28,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591732720] [2022-12-13 14:44:28,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:28,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:44:28,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:44:28,453 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:44:28,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 14:44:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:28,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 14:44:28,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:44:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 14:44:29,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:44:29,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591732720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:29,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:44:29,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 23 [2022-12-13 14:44:29,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982499328] [2022-12-13 14:44:29,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:29,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 14:44:29,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:29,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 14:44:29,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2022-12-13 14:44:29,021 INFO L87 Difference]: Start difference. First operand 369765 states and 635046 transitions. Second operand has 13 states, 12 states have (on average 9.666666666666666) internal successors, (116), 10 states have internal predecessors, (116), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-12-13 14:45:28,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:45:28,017 INFO L93 Difference]: Finished difference Result 734493 states and 1283334 transitions. [2022-12-13 14:45:28,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:45:28,018 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.666666666666666) internal successors, (116), 10 states have internal predecessors, (116), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 156 [2022-12-13 14:45:28,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:45:31,254 INFO L225 Difference]: With dead ends: 734493 [2022-12-13 14:45:31,254 INFO L226 Difference]: Without dead ends: 733713 [2022-12-13 14:45:31,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=1046, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 14:45:31,525 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 1426 mSDsluCounter, 3673 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 4216 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:45:31,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 4216 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:45:32,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733713 states. [2022-12-13 14:46:37,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733713 to 733325. [2022-12-13 14:46:38,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733325 states, 612368 states have (on average 1.5860201708776422) internal successors, (971228), 611660 states have internal predecessors, (971228), 120640 states have call successors, (120640), 278 states have call predecessors, (120640), 316 states have return successors, (189732), 121428 states have call predecessors, (189732), 120626 states have call successors, (189732) [2022-12-13 14:46:41,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733325 states to 733325 states and 1281600 transitions. [2022-12-13 14:46:41,551 INFO L78 Accepts]: Start accepts. Automaton has 733325 states and 1281600 transitions. Word has length 156 [2022-12-13 14:46:41,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:46:41,552 INFO L495 AbstractCegarLoop]: Abstraction has 733325 states and 1281600 transitions. [2022-12-13 14:46:41,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.666666666666666) internal successors, (116), 10 states have internal predecessors, (116), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-12-13 14:46:41,552 INFO L276 IsEmpty]: Start isEmpty. Operand 733325 states and 1281600 transitions. [2022-12-13 14:46:42,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-13 14:46:42,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:46:42,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:46:42,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 14:46:42,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:46:42,529 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:46:42,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:46:42,530 INFO L85 PathProgramCache]: Analyzing trace with hash -386812625, now seen corresponding path program 1 times [2022-12-13 14:46:42,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:46:42,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201415037] [2022-12-13 14:46:42,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:46:42,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:46:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:46:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:46:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:46:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:46:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:46:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:46:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:46:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 14:46:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 14:46:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 14:46:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:46:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 14:46:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 14:46:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 14:46:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 14:46:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 14:46:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,730 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 14:46:42,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:46:42,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201415037] [2022-12-13 14:46:42,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201415037] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:46:42,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401284721] [2022-12-13 14:46:42,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:46:42,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:46:42,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:46:42,731 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:46:42,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 14:46:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:46:42,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 14:46:42,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:46:43,083 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 14:46:43,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:46:43,221 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 14:46:43,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401284721] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 14:46:43,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:46:43,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 5] total 17 [2022-12-13 14:46:43,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920036279] [2022-12-13 14:46:43,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:46:43,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:46:43,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:46:43,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:46:43,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2022-12-13 14:46:43,223 INFO L87 Difference]: Start difference. First operand 733325 states and 1281600 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 14:47:45,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:47:45,341 INFO L93 Difference]: Finished difference Result 742969 states and 1295149 transitions. [2022-12-13 14:47:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:47:45,342 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 156 [2022-12-13 14:47:45,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:47:48,601 INFO L225 Difference]: With dead ends: 742969 [2022-12-13 14:47:48,601 INFO L226 Difference]: Without dead ends: 740409 [2022-12-13 14:47:48,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 331 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-12-13 14:47:48,856 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 996 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:47:48,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 2453 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:47:49,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740409 states. [2022-12-13 14:48:58,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740409 to 740237. [2022-12-13 14:48:59,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740237 states, 617595 states have (on average 1.5845286959900906) internal successors, (978597), 617021 states have internal predecessors, (978597), 121624 states have call successors, (121624), 852 states have call predecessors, (121624), 1017 states have return successors, (190991), 122475 states have call predecessors, (190991), 121568 states have call successors, (190991) [2022-12-13 14:49:02,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740237 states to 740237 states and 1291212 transitions. [2022-12-13 14:49:02,222 INFO L78 Accepts]: Start accepts. Automaton has 740237 states and 1291212 transitions. Word has length 156 [2022-12-13 14:49:02,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:49:02,222 INFO L495 AbstractCegarLoop]: Abstraction has 740237 states and 1291212 transitions. [2022-12-13 14:49:02,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 14:49:02,222 INFO L276 IsEmpty]: Start isEmpty. Operand 740237 states and 1291212 transitions. [2022-12-13 14:49:03,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-13 14:49:03,074 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:49:03,074 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 14:49:03,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-13 14:49:03,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:49:03,278 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:49:03,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:03,279 INFO L85 PathProgramCache]: Analyzing trace with hash -569955645, now seen corresponding path program 1 times [2022-12-13 14:49:03,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:03,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639639388] [2022-12-13 14:49:03,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:03,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 14:49:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:49:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 14:49:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:49:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 14:49:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 14:49:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:49:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 14:49:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 14:49:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 14:49:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 14:49:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 14:49:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 14:49:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 14:49:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 14:49:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 14:49:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,483 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 14:49:03,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:49:03,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639639388] [2022-12-13 14:49:03,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639639388] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:49:03,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923127659] [2022-12-13 14:49:03,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:03,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:49:03,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:49:03,484 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:49:03,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3aa6cfab-9b77-47e8-8f81-58bb2db082bf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 14:49:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:03,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-13 14:49:03,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:49:03,849 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 14:49:03,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:49:03,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923127659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:49:03,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:49:03,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 22 [2022-12-13 14:49:03,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363657926] [2022-12-13 14:49:03,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:49:03,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:49:03,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:49:03,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:49:03,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2022-12-13 14:49:03,852 INFO L87 Difference]: Start difference. First operand 740237 states and 1291212 transitions. Second operand has 12 states, 10 states have (on average 11.0) internal successors, (110), 11 states have internal predecessors, (110), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2022-12-13 14:50:04,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:50:04,469 INFO L93 Difference]: Finished difference Result 743273 states and 1295425 transitions. [2022-12-13 14:50:04,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:50:04,470 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.0) internal successors, (110), 11 states have internal predecessors, (110), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 157 [2022-12-13 14:50:04,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:50:07,688 INFO L225 Difference]: With dead ends: 743273 [2022-12-13 14:50:07,688 INFO L226 Difference]: Without dead ends: 738213 [2022-12-13 14:50:07,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-12-13 14:50:07,998 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 337 mSDsluCounter, 4372 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 4848 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:50:07,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 4848 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:50:08,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738213 states.