./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem17_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem17_label51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN --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 92aa4dc056ccedcde60ae7f447376d93fb9f66f20db418d40e67517b8efc809e --- 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-6b4ec56 [2022-11-20 12:27:42,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:27:42,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:27:42,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:27:42,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:27:42,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:27:42,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:27:42,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:27:42,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:27:42,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:27:42,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:27:42,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:27:42,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:27:42,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:27:42,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:27:42,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:27:42,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:27:42,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:27:42,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:27:42,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:27:42,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:27:42,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:27:42,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:27:42,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:27:42,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:27:42,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:27:42,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:27:42,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:27:42,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:27:42,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:27:42,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:27:42,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:27:42,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:27:42,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:27:42,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:27:42,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:27:42,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:27:42,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:27:42,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:27:42,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:27:42,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:27:42,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:27:42,576 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:27:42,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:27:42,577 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:27:42,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:27:42,579 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:27:42,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:27:42,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:27:42,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:27:42,581 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:27:42,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:27:42,583 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:27:42,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:27:42,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:27:42,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:27:42,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:27:42,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:27:42,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:27:42,585 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:27:42,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:27:42,585 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:27:42,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:27:42,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:27:42,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:27:42,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:27:42,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:27:42,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:27:42,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:27:42,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:27:42,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:27:42,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:27:42,590 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:27:42,590 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:27:42,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:27:42,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92aa4dc056ccedcde60ae7f447376d93fb9f66f20db418d40e67517b8efc809e [2022-11-20 12:27:42,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:27:43,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:27:43,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:27:43,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:27:43,034 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:27:43,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/eca-rers2012/Problem17_label51.c [2022-11-20 12:27:46,386 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:27:46,887 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:27:46,888 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/sv-benchmarks/c/eca-rers2012/Problem17_label51.c [2022-11-20 12:27:46,946 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/data/f43d168b5/643523a7e6c743048f6cef5a14242f1a/FLAGcef4fe91b [2022-11-20 12:27:46,968 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/data/f43d168b5/643523a7e6c743048f6cef5a14242f1a [2022-11-20 12:27:46,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:27:46,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:27:46,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:27:46,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:27:46,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:27:46,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:27:46" (1/1) ... [2022-11-20 12:27:46,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92f508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:46, skipping insertion in model container [2022-11-20 12:27:46,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:27:46" (1/1) ... [2022-11-20 12:27:46,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:27:47,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:27:47,454 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_b21a622b-c855-4fb9-ac31-9ca6530cd71c/sv-benchmarks/c/eca-rers2012/Problem17_label51.c[5625,5638] [2022-11-20 12:27:48,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:27:48,257 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:27:48,310 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_b21a622b-c855-4fb9-ac31-9ca6530cd71c/sv-benchmarks/c/eca-rers2012/Problem17_label51.c[5625,5638] [2022-11-20 12:27:48,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:27:48,732 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:27:48,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48 WrapperNode [2022-11-20 12:27:48,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:27:48,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:27:48,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:27:48,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:27:48,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (1/1) ... [2022-11-20 12:27:48,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (1/1) ... [2022-11-20 12:27:49,228 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2611 [2022-11-20 12:27:49,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:27:49,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:27:49,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:27:49,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:27:49,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (1/1) ... [2022-11-20 12:27:49,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (1/1) ... [2022-11-20 12:27:49,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (1/1) ... [2022-11-20 12:27:49,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (1/1) ... [2022-11-20 12:27:49,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (1/1) ... [2022-11-20 12:27:49,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (1/1) ... [2022-11-20 12:27:49,526 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (1/1) ... [2022-11-20 12:27:49,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (1/1) ... [2022-11-20 12:27:49,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:27:49,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:27:49,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:27:49,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:27:49,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (1/1) ... [2022-11-20 12:27:49,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:27:49,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:27:49,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:27:49,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:27:49,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:27:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:27:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:27:49,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:27:49,809 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:27:49,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:27:54,493 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:27:54,520 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:27:54,522 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:27:54,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:27:54 BoogieIcfgContainer [2022-11-20 12:27:54,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:27:54,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:27:54,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:27:54,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:27:54,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:27:46" (1/3) ... [2022-11-20 12:27:54,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e04309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:27:54, skipping insertion in model container [2022-11-20 12:27:54,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:27:48" (2/3) ... [2022-11-20 12:27:54,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e04309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:27:54, skipping insertion in model container [2022-11-20 12:27:54,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:27:54" (3/3) ... [2022-11-20 12:27:54,542 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label51.c [2022-11-20 12:27:54,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:27:54,571 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:27:54,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:27:54,686 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;@7cd650e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:27:54,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:27:54,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:27:54,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 12:27:54,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:27:54,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:27:54,706 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:27:54,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:27:54,713 INFO L85 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2022-11-20 12:27:54,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:27:54,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334187735] [2022-11-20 12:27:54,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:27:54,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:27:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:27:55,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:27:55,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:27:55,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334187735] [2022-11-20 12:27:55,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334187735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:27:55,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:27:55,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:27:55,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183276299] [2022-11-20 12:27:55,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:27:55,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:27:55,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:27:55,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:27:55,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:27:55,145 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:27:59,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:27:59,895 INFO L93 Difference]: Finished difference Result 1680 states and 3074 transitions. [2022-11-20 12:27:59,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:27:59,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-20 12:27:59,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:27:59,920 INFO L225 Difference]: With dead ends: 1680 [2022-11-20 12:27:59,920 INFO L226 Difference]: Without dead ends: 1011 [2022-11-20 12:27:59,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:27:59,930 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 544 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1600 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:27:59,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 220 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1600 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-20 12:27:59,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2022-11-20 12:28:00,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 996. [2022-11-20 12:28:00,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 995 states have (on average 1.735678391959799) internal successors, (1727), 995 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1727 transitions. [2022-11-20 12:28:00,034 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1727 transitions. Word has length 37 [2022-11-20 12:28:00,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:00,035 INFO L495 AbstractCegarLoop]: Abstraction has 996 states and 1727 transitions. [2022-11-20 12:28:00,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1727 transitions. [2022-11-20 12:28:00,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 12:28:00,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:00,041 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 12:28:00,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:28:00,042 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:00,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:00,043 INFO L85 PathProgramCache]: Analyzing trace with hash 52735373, now seen corresponding path program 1 times [2022-11-20 12:28:00,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:00,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116631837] [2022-11-20 12:28:00,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:00,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:28:00,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:00,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116631837] [2022-11-20 12:28:00,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116631837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:00,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:00,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:28:00,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882625732] [2022-11-20 12:28:00,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:00,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:28:00,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:00,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:28:00,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:00,347 INFO L87 Difference]: Start difference. First operand 996 states and 1727 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:04,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:04,302 INFO L93 Difference]: Finished difference Result 2873 states and 5026 transitions. [2022-11-20 12:28:04,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:28:04,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-11-20 12:28:04,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:04,313 INFO L225 Difference]: With dead ends: 2873 [2022-11-20 12:28:04,313 INFO L226 Difference]: Without dead ends: 1879 [2022-11-20 12:28:04,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:04,317 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 409 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:04,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 521 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 12:28:04,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2022-11-20 12:28:04,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1870. [2022-11-20 12:28:04,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1869 states have (on average 1.4724451578384163) internal successors, (2752), 1869 states have internal predecessors, (2752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2752 transitions. [2022-11-20 12:28:04,386 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2752 transitions. Word has length 102 [2022-11-20 12:28:04,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:04,392 INFO L495 AbstractCegarLoop]: Abstraction has 1870 states and 2752 transitions. [2022-11-20 12:28:04,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:04,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2752 transitions. [2022-11-20 12:28:04,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-20 12:28:04,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:04,401 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 12:28:04,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:28:04,403 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:04,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:04,405 INFO L85 PathProgramCache]: Analyzing trace with hash 834662076, now seen corresponding path program 1 times [2022-11-20 12:28:04,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:04,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762024475] [2022-11-20 12:28:04,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:04,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:04,720 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:28:04,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:04,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762024475] [2022-11-20 12:28:04,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762024475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:04,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:04,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:28:04,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446555607] [2022-11-20 12:28:04,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:04,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:28:04,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:04,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:28:04,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:04,724 INFO L87 Difference]: Start difference. First operand 1870 states and 2752 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:08,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:08,492 INFO L93 Difference]: Finished difference Result 5454 states and 8042 transitions. [2022-11-20 12:28:08,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:28:08,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-11-20 12:28:08,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:08,512 INFO L225 Difference]: With dead ends: 5454 [2022-11-20 12:28:08,512 INFO L226 Difference]: Without dead ends: 3586 [2022-11-20 12:28:08,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:08,526 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 457 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:08,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 914 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-20 12:28:08,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3586 states. [2022-11-20 12:28:08,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3586 to 3583. [2022-11-20 12:28:08,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3583 states, 3582 states have (on average 1.3358458961474038) internal successors, (4785), 3582 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:08,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 4785 transitions. [2022-11-20 12:28:08,627 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 4785 transitions. Word has length 107 [2022-11-20 12:28:08,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:08,628 INFO L495 AbstractCegarLoop]: Abstraction has 3583 states and 4785 transitions. [2022-11-20 12:28:08,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:08,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 4785 transitions. [2022-11-20 12:28:08,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-20 12:28:08,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:08,642 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 12:28:08,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:28:08,642 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:08,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:08,645 INFO L85 PathProgramCache]: Analyzing trace with hash -923975225, now seen corresponding path program 1 times [2022-11-20 12:28:08,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:08,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928083108] [2022-11-20 12:28:08,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:08,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:28:09,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:09,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928083108] [2022-11-20 12:28:09,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928083108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:09,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:09,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:28:09,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575584076] [2022-11-20 12:28:09,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:09,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:28:09,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:09,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:28:09,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:09,058 INFO L87 Difference]: Start difference. First operand 3583 states and 4785 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:12,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:12,294 INFO L93 Difference]: Finished difference Result 10571 states and 14111 transitions. [2022-11-20 12:28:12,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:28:12,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2022-11-20 12:28:12,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:12,311 INFO L225 Difference]: With dead ends: 10571 [2022-11-20 12:28:12,312 INFO L226 Difference]: Without dead ends: 5286 [2022-11-20 12:28:12,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:12,319 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 347 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:12,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 12:28:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5286 states. [2022-11-20 12:28:12,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5286 to 4431. [2022-11-20 12:28:12,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4431 states, 4430 states have (on average 1.209255079006772) internal successors, (5357), 4430 states have internal predecessors, (5357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4431 states to 4431 states and 5357 transitions. [2022-11-20 12:28:12,425 INFO L78 Accepts]: Start accepts. Automaton has 4431 states and 5357 transitions. Word has length 148 [2022-11-20 12:28:12,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:12,426 INFO L495 AbstractCegarLoop]: Abstraction has 4431 states and 5357 transitions. [2022-11-20 12:28:12,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:12,426 INFO L276 IsEmpty]: Start isEmpty. Operand 4431 states and 5357 transitions. [2022-11-20 12:28:12,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-20 12:28:12,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:12,430 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 12:28:12,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:28:12,430 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:12,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:12,431 INFO L85 PathProgramCache]: Analyzing trace with hash -33662266, now seen corresponding path program 1 times [2022-11-20 12:28:12,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:12,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028848765] [2022-11-20 12:28:12,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:12,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:12,710 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:28:12,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:12,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028848765] [2022-11-20 12:28:12,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028848765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:12,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:12,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:28:12,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741392534] [2022-11-20 12:28:12,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:12,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:28:12,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:12,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:28:12,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:12,713 INFO L87 Difference]: Start difference. First operand 4431 states and 5357 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:15,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:15,400 INFO L93 Difference]: Finished difference Result 11410 states and 14012 transitions. [2022-11-20 12:28:15,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:28:15,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 189 [2022-11-20 12:28:15,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:15,474 INFO L225 Difference]: With dead ends: 11410 [2022-11-20 12:28:15,474 INFO L226 Difference]: Without dead ends: 6981 [2022-11-20 12:28:15,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:15,482 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 496 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:15,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 785 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-20 12:28:15,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6981 states. [2022-11-20 12:28:15,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6981 to 6981. [2022-11-20 12:28:15,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6981 states, 6980 states have (on average 1.1835243553008596) internal successors, (8261), 6980 states have internal predecessors, (8261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:15,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6981 states to 6981 states and 8261 transitions. [2022-11-20 12:28:15,686 INFO L78 Accepts]: Start accepts. Automaton has 6981 states and 8261 transitions. Word has length 189 [2022-11-20 12:28:15,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:15,688 INFO L495 AbstractCegarLoop]: Abstraction has 6981 states and 8261 transitions. [2022-11-20 12:28:15,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:15,693 INFO L276 IsEmpty]: Start isEmpty. Operand 6981 states and 8261 transitions. [2022-11-20 12:28:15,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-11-20 12:28:15,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:15,702 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:28:15,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:28:15,702 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:15,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:15,703 INFO L85 PathProgramCache]: Analyzing trace with hash -650402679, now seen corresponding path program 1 times [2022-11-20 12:28:15,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:15,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894363440] [2022-11-20 12:28:15,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:15,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:16,160 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-20 12:28:16,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:16,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894363440] [2022-11-20 12:28:16,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894363440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:16,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:16,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:28:16,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826330395] [2022-11-20 12:28:16,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:16,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:28:16,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:16,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:28:16,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:16,165 INFO L87 Difference]: Start difference. First operand 6981 states and 8261 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:19,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:19,201 INFO L93 Difference]: Finished difference Result 17786 states and 21271 transitions. [2022-11-20 12:28:19,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:28:19,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 269 [2022-11-20 12:28:19,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:19,235 INFO L225 Difference]: With dead ends: 17786 [2022-11-20 12:28:19,235 INFO L226 Difference]: Without dead ends: 9957 [2022-11-20 12:28:19,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:19,243 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 384 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:19,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 858 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 12:28:19,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9957 states. [2022-11-20 12:28:19,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9957 to 9957. [2022-11-20 12:28:19,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9957 states, 9956 states have (on average 1.1449377259943752) internal successors, (11399), 9956 states have internal predecessors, (11399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:19,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9957 states to 9957 states and 11399 transitions. [2022-11-20 12:28:19,448 INFO L78 Accepts]: Start accepts. Automaton has 9957 states and 11399 transitions. Word has length 269 [2022-11-20 12:28:19,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:19,449 INFO L495 AbstractCegarLoop]: Abstraction has 9957 states and 11399 transitions. [2022-11-20 12:28:19,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:19,450 INFO L276 IsEmpty]: Start isEmpty. Operand 9957 states and 11399 transitions. [2022-11-20 12:28:19,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-11-20 12:28:19,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:19,458 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 12:28:19,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:28:19,459 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:19,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:19,460 INFO L85 PathProgramCache]: Analyzing trace with hash 303507172, now seen corresponding path program 1 times [2022-11-20 12:28:19,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:19,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085366504] [2022-11-20 12:28:19,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:19,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-20 12:28:19,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:19,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085366504] [2022-11-20 12:28:19,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085366504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:19,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:19,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:28:19,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668305875] [2022-11-20 12:28:19,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:19,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:28:19,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:19,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:28:19,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:19,807 INFO L87 Difference]: Start difference. First operand 9957 states and 11399 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:23,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:23,059 INFO L93 Difference]: Finished difference Result 25017 states and 28859 transitions. [2022-11-20 12:28:23,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:28:23,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 309 [2022-11-20 12:28:23,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:23,089 INFO L225 Difference]: With dead ends: 25017 [2022-11-20 12:28:23,089 INFO L226 Difference]: Without dead ends: 15062 [2022-11-20 12:28:23,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:23,099 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 463 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:23,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 368 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 12:28:23,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15062 states. [2022-11-20 12:28:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15062 to 13780. [2022-11-20 12:28:23,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13780 states, 13779 states have (on average 1.1398504971333188) internal successors, (15706), 13779 states have internal predecessors, (15706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:23,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13780 states to 13780 states and 15706 transitions. [2022-11-20 12:28:23,343 INFO L78 Accepts]: Start accepts. Automaton has 13780 states and 15706 transitions. Word has length 309 [2022-11-20 12:28:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:23,344 INFO L495 AbstractCegarLoop]: Abstraction has 13780 states and 15706 transitions. [2022-11-20 12:28:23,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 13780 states and 15706 transitions. [2022-11-20 12:28:23,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2022-11-20 12:28:23,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:23,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:28:23,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:28:23,358 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:23,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:23,359 INFO L85 PathProgramCache]: Analyzing trace with hash -851527212, now seen corresponding path program 1 times [2022-11-20 12:28:23,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:23,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700489765] [2022-11-20 12:28:23,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:23,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:23,927 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:28:23,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:23,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700489765] [2022-11-20 12:28:23,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700489765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:23,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:23,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:28:23,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25451913] [2022-11-20 12:28:23,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:23,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:28:23,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:23,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:28:23,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:28:23,930 INFO L87 Difference]: Start difference. First operand 13780 states and 15706 transitions. Second operand has 4 states, 4 states have (on average 94.0) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:28,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:28,286 INFO L93 Difference]: Finished difference Result 32278 states and 36930 transitions. [2022-11-20 12:28:28,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:28:28,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 376 [2022-11-20 12:28:28,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:28,323 INFO L225 Difference]: With dead ends: 32278 [2022-11-20 12:28:28,323 INFO L226 Difference]: Without dead ends: 18075 [2022-11-20 12:28:28,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:28:28,337 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 638 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 2736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:28,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 229 Invalid, 2736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-20 12:28:28,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18075 states. [2022-11-20 12:28:28,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18075 to 18069. [2022-11-20 12:28:28,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18069 states, 18068 states have (on average 1.1503210095195926) internal successors, (20784), 18068 states have internal predecessors, (20784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:28,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18069 states to 18069 states and 20784 transitions. [2022-11-20 12:28:28,640 INFO L78 Accepts]: Start accepts. Automaton has 18069 states and 20784 transitions. Word has length 376 [2022-11-20 12:28:28,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:28,641 INFO L495 AbstractCegarLoop]: Abstraction has 18069 states and 20784 transitions. [2022-11-20 12:28:28,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:28,642 INFO L276 IsEmpty]: Start isEmpty. Operand 18069 states and 20784 transitions. [2022-11-20 12:28:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2022-11-20 12:28:28,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:28,660 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:28:28,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:28:28,662 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:28,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:28,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1472504530, now seen corresponding path program 1 times [2022-11-20 12:28:28,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:28,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7355874] [2022-11-20 12:28:28,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:28,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-20 12:28:29,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:29,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7355874] [2022-11-20 12:28:29,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7355874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:29,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:29,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:28:29,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700085715] [2022-11-20 12:28:29,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:29,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:28:29,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:29,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:28:29,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:29,335 INFO L87 Difference]: Start difference. First operand 18069 states and 20784 transitions. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:32,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:32,344 INFO L93 Difference]: Finished difference Result 41261 states and 47726 transitions. [2022-11-20 12:28:32,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:28:32,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 423 [2022-11-20 12:28:32,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:32,389 INFO L225 Difference]: With dead ends: 41261 [2022-11-20 12:28:32,389 INFO L226 Difference]: Without dead ends: 22339 [2022-11-20 12:28:32,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:32,407 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 436 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:32,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 858 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 12:28:32,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22339 states. [2022-11-20 12:28:32,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22339 to 22334. [2022-11-20 12:28:32,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22334 states, 22333 states have (on average 1.141987193838714) internal successors, (25504), 22333 states have internal predecessors, (25504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:32,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22334 states to 22334 states and 25504 transitions. [2022-11-20 12:28:32,870 INFO L78 Accepts]: Start accepts. Automaton has 22334 states and 25504 transitions. Word has length 423 [2022-11-20 12:28:32,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:32,871 INFO L495 AbstractCegarLoop]: Abstraction has 22334 states and 25504 transitions. [2022-11-20 12:28:32,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:32,872 INFO L276 IsEmpty]: Start isEmpty. Operand 22334 states and 25504 transitions. [2022-11-20 12:28:32,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-11-20 12:28:32,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:32,897 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 12:28:32,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:28:32,897 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:32,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:32,898 INFO L85 PathProgramCache]: Analyzing trace with hash 2020726887, now seen corresponding path program 1 times [2022-11-20 12:28:32,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:32,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053467685] [2022-11-20 12:28:32,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:32,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:33,325 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-20 12:28:33,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:33,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053467685] [2022-11-20 12:28:33,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053467685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:33,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:33,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:28:33,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065791899] [2022-11-20 12:28:33,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:33,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:28:33,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:33,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:28:33,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:33,330 INFO L87 Difference]: Start difference. First operand 22334 states and 25504 transitions. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:36,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:36,688 INFO L93 Difference]: Finished difference Result 56175 states and 64291 transitions. [2022-11-20 12:28:36,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:28:36,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 479 [2022-11-20 12:28:36,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:36,760 INFO L225 Difference]: With dead ends: 56175 [2022-11-20 12:28:36,760 INFO L226 Difference]: Without dead ends: 33843 [2022-11-20 12:28:36,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:36,782 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 504 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:36,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 279 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 12:28:36,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33843 states. [2022-11-20 12:28:37,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33843 to 33397. [2022-11-20 12:28:37,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33397 states, 33396 states have (on average 1.134267576955324) internal successors, (37880), 33396 states have internal predecessors, (37880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:37,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33397 states to 33397 states and 37880 transitions. [2022-11-20 12:28:37,497 INFO L78 Accepts]: Start accepts. Automaton has 33397 states and 37880 transitions. Word has length 479 [2022-11-20 12:28:37,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:37,498 INFO L495 AbstractCegarLoop]: Abstraction has 33397 states and 37880 transitions. [2022-11-20 12:28:37,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:37,499 INFO L276 IsEmpty]: Start isEmpty. Operand 33397 states and 37880 transitions. [2022-11-20 12:28:37,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-20 12:28:37,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:37,526 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:28:37,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:28:37,526 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:37,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:37,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1681382793, now seen corresponding path program 1 times [2022-11-20 12:28:37,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:37,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893274526] [2022-11-20 12:28:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:37,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 14 proven. 90 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-11-20 12:28:38,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:38,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893274526] [2022-11-20 12:28:38,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893274526] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:28:38,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718887844] [2022-11-20 12:28:38,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:38,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:28:38,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:28:38,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:28:38,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:28:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:39,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:28:39,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:28:39,202 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-11-20 12:28:39,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:28:39,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718887844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:39,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:28:39,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-20 12:28:39,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855941890] [2022-11-20 12:28:39,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:39,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:28:39,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:39,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:28:39,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:28:39,205 INFO L87 Difference]: Start difference. First operand 33397 states and 37880 transitions. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:42,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:42,371 INFO L93 Difference]: Finished difference Result 73168 states and 82985 transitions. [2022-11-20 12:28:42,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:28:42,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 480 [2022-11-20 12:28:42,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:42,424 INFO L225 Difference]: With dead ends: 73168 [2022-11-20 12:28:42,424 INFO L226 Difference]: Without dead ends: 38048 [2022-11-20 12:28:42,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:28:42,450 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 496 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:42,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 664 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 12:28:42,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38048 states. [2022-11-20 12:28:42,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38048 to 38045. [2022-11-20 12:28:42,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38045 states, 38044 states have (on average 1.120912627483966) internal successors, (42644), 38044 states have internal predecessors, (42644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:43,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38045 states to 38045 states and 42644 transitions. [2022-11-20 12:28:43,027 INFO L78 Accepts]: Start accepts. Automaton has 38045 states and 42644 transitions. Word has length 480 [2022-11-20 12:28:43,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:43,028 INFO L495 AbstractCegarLoop]: Abstraction has 38045 states and 42644 transitions. [2022-11-20 12:28:43,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:43,028 INFO L276 IsEmpty]: Start isEmpty. Operand 38045 states and 42644 transitions. [2022-11-20 12:28:43,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2022-11-20 12:28:43,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:43,055 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:28:43,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:28:43,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:28:43,261 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:43,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:43,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1279903704, now seen corresponding path program 1 times [2022-11-20 12:28:43,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:43,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602974005] [2022-11-20 12:28:43,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:43,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:44,005 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-11-20 12:28:44,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:44,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602974005] [2022-11-20 12:28:44,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602974005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:44,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:44,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:28:44,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737303031] [2022-11-20 12:28:44,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:44,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:28:44,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:44,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:28:44,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:44,009 INFO L87 Difference]: Start difference. First operand 38045 states and 42644 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:46,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:46,616 INFO L93 Difference]: Finished difference Result 75654 states and 84794 transitions. [2022-11-20 12:28:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:28:46,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 504 [2022-11-20 12:28:46,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:46,675 INFO L225 Difference]: With dead ends: 75654 [2022-11-20 12:28:46,676 INFO L226 Difference]: Without dead ends: 37611 [2022-11-20 12:28:46,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:28:46,697 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 466 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:46,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 713 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:28:46,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37611 states. [2022-11-20 12:28:47,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37611 to 37184. [2022-11-20 12:28:47,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37184 states, 37183 states have (on average 1.0944786596025065) internal successors, (40696), 37183 states have internal predecessors, (40696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:47,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37184 states to 37184 states and 40696 transitions. [2022-11-20 12:28:47,277 INFO L78 Accepts]: Start accepts. Automaton has 37184 states and 40696 transitions. Word has length 504 [2022-11-20 12:28:47,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:47,278 INFO L495 AbstractCegarLoop]: Abstraction has 37184 states and 40696 transitions. [2022-11-20 12:28:47,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:47,279 INFO L276 IsEmpty]: Start isEmpty. Operand 37184 states and 40696 transitions. [2022-11-20 12:28:47,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 591 [2022-11-20 12:28:47,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:47,315 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:28:47,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:28:47,316 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:47,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:47,317 INFO L85 PathProgramCache]: Analyzing trace with hash -277505785, now seen corresponding path program 1 times [2022-11-20 12:28:47,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:47,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309271463] [2022-11-20 12:28:47,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:47,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:48,679 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:28:48,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:48,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309271463] [2022-11-20 12:28:48,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309271463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:48,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:48,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:28:48,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186874323] [2022-11-20 12:28:48,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:48,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:28:48,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:48,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:28:48,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:28:48,682 INFO L87 Difference]: Start difference. First operand 37184 states and 40696 transitions. Second operand has 4 states, 4 states have (on average 147.5) internal successors, (590), 4 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:52,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:52,850 INFO L93 Difference]: Finished difference Result 96108 states and 105209 transitions. [2022-11-20 12:28:52,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:28:52,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 147.5) internal successors, (590), 4 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 590 [2022-11-20 12:28:52,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:53,022 INFO L225 Difference]: With dead ends: 96108 [2022-11-20 12:28:53,022 INFO L226 Difference]: Without dead ends: 58926 [2022-11-20 12:28:53,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:28:53,048 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 538 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:53,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 173 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-20 12:28:53,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58926 states. [2022-11-20 12:28:53,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58926 to 56367. [2022-11-20 12:28:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56367 states, 56366 states have (on average 1.0933541496646915) internal successors, (61628), 56366 states have internal predecessors, (61628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:54,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56367 states to 56367 states and 61628 transitions. [2022-11-20 12:28:54,162 INFO L78 Accepts]: Start accepts. Automaton has 56367 states and 61628 transitions. Word has length 590 [2022-11-20 12:28:54,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:28:54,163 INFO L495 AbstractCegarLoop]: Abstraction has 56367 states and 61628 transitions. [2022-11-20 12:28:54,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 147.5) internal successors, (590), 4 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand 56367 states and 61628 transitions. [2022-11-20 12:28:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-11-20 12:28:54,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:28:54,204 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:28:54,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:28:54,204 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:28:54,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:28:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash -728584266, now seen corresponding path program 1 times [2022-11-20 12:28:54,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:28:54,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823533195] [2022-11-20 12:28:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:28:54,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:28:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:28:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-11-20 12:28:55,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:28:55,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823533195] [2022-11-20 12:28:55,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823533195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:28:55,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:28:55,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:28:55,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384166007] [2022-11-20 12:28:55,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:28:55,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:28:55,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:28:55,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:28:55,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:28:55,678 INFO L87 Difference]: Start difference. First operand 56367 states and 61628 transitions. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:28:59,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:28:59,750 INFO L93 Difference]: Finished difference Result 114909 states and 125533 transitions. [2022-11-20 12:28:59,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:28:59,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 596 [2022-11-20 12:28:59,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:28:59,815 INFO L225 Difference]: With dead ends: 114909 [2022-11-20 12:28:59,815 INFO L226 Difference]: Without dead ends: 57630 [2022-11-20 12:28:59,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:28:59,849 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 855 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 2935 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 3067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:28:59,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 205 Invalid, 3067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2935 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-20 12:28:59,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57630 states. [2022-11-20 12:29:00,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57630 to 57200. [2022-11-20 12:29:00,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57200 states, 57199 states have (on average 1.0880260144408118) internal successors, (62234), 57199 states have internal predecessors, (62234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:00,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57200 states to 57200 states and 62234 transitions. [2022-11-20 12:29:00,900 INFO L78 Accepts]: Start accepts. Automaton has 57200 states and 62234 transitions. Word has length 596 [2022-11-20 12:29:00,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:00,901 INFO L495 AbstractCegarLoop]: Abstraction has 57200 states and 62234 transitions. [2022-11-20 12:29:00,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:00,902 INFO L276 IsEmpty]: Start isEmpty. Operand 57200 states and 62234 transitions. [2022-11-20 12:29:00,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2022-11-20 12:29:00,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:00,938 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:00,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:29:00,939 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:29:00,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:00,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1471035311, now seen corresponding path program 1 times [2022-11-20 12:29:00,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:00,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148613957] [2022-11-20 12:29:00,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:00,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:02,038 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-11-20 12:29:02,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:02,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148613957] [2022-11-20 12:29:02,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148613957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:02,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:02,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:29:02,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769278800] [2022-11-20 12:29:02,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:02,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:29:02,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:02,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:29:02,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:02,041 INFO L87 Difference]: Start difference. First operand 57200 states and 62234 transitions. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:05,258 INFO L93 Difference]: Finished difference Result 126756 states and 138139 transitions. [2022-11-20 12:29:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:29:05,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 604 [2022-11-20 12:29:05,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:05,335 INFO L225 Difference]: With dead ends: 126756 [2022-11-20 12:29:05,335 INFO L226 Difference]: Without dead ends: 68269 [2022-11-20 12:29:05,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:05,353 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 192 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:05,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 615 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-20 12:29:05,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68269 states. [2022-11-20 12:29:06,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68269 to 64437. [2022-11-20 12:29:06,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64437 states, 64436 states have (on average 1.0878390961574276) internal successors, (70096), 64436 states have internal predecessors, (70096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:06,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64437 states to 64437 states and 70096 transitions. [2022-11-20 12:29:06,396 INFO L78 Accepts]: Start accepts. Automaton has 64437 states and 70096 transitions. Word has length 604 [2022-11-20 12:29:06,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:06,396 INFO L495 AbstractCegarLoop]: Abstraction has 64437 states and 70096 transitions. [2022-11-20 12:29:06,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:06,397 INFO L276 IsEmpty]: Start isEmpty. Operand 64437 states and 70096 transitions. [2022-11-20 12:29:06,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2022-11-20 12:29:06,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:06,636 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:06,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:29:06,637 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:29:06,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:06,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1774489779, now seen corresponding path program 1 times [2022-11-20 12:29:06,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:06,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706024908] [2022-11-20 12:29:06,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:06,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:08,050 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-20 12:29:08,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:08,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706024908] [2022-11-20 12:29:08,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706024908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:08,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:08,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:29:08,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254066913] [2022-11-20 12:29:08,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:08,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:29:08,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:08,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:29:08,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:08,054 INFO L87 Difference]: Start difference. First operand 64437 states and 70096 transitions. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:10,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:10,757 INFO L93 Difference]: Finished difference Result 118205 states and 128347 transitions. [2022-11-20 12:29:10,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:29:10,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 633 [2022-11-20 12:29:10,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:10,822 INFO L225 Difference]: With dead ends: 118205 [2022-11-20 12:29:10,822 INFO L226 Difference]: Without dead ends: 65722 [2022-11-20 12:29:10,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:10,844 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 99 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:10,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 733 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 12:29:10,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65722 states. [2022-11-20 12:29:11,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65722 to 64439. [2022-11-20 12:29:11,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64439 states, 64438 states have (on average 1.0878363698438809) internal successors, (70098), 64438 states have internal predecessors, (70098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:11,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64439 states to 64439 states and 70098 transitions. [2022-11-20 12:29:11,672 INFO L78 Accepts]: Start accepts. Automaton has 64439 states and 70098 transitions. Word has length 633 [2022-11-20 12:29:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:11,673 INFO L495 AbstractCegarLoop]: Abstraction has 64439 states and 70098 transitions. [2022-11-20 12:29:11,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:11,673 INFO L276 IsEmpty]: Start isEmpty. Operand 64439 states and 70098 transitions. [2022-11-20 12:29:11,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2022-11-20 12:29:11,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:11,956 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:11,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:29:11,956 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:29:11,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:11,957 INFO L85 PathProgramCache]: Analyzing trace with hash -719047658, now seen corresponding path program 1 times [2022-11-20 12:29:11,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:11,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566885047] [2022-11-20 12:29:11,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:11,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:12,939 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-20 12:29:12,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:12,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566885047] [2022-11-20 12:29:12,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566885047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:12,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:12,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:29:12,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168013428] [2022-11-20 12:29:12,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:12,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:29:12,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:12,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:29:12,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:29:12,944 INFO L87 Difference]: Start difference. First operand 64439 states and 70098 transitions. Second operand has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:17,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:17,370 INFO L93 Difference]: Finished difference Result 136961 states and 148854 transitions. [2022-11-20 12:29:17,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:29:17,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 634 [2022-11-20 12:29:17,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:17,462 INFO L225 Difference]: With dead ends: 136961 [2022-11-20 12:29:17,462 INFO L226 Difference]: Without dead ends: 72524 [2022-11-20 12:29:17,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:29:17,496 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 770 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:17,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 162 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 12:29:17,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72524 states. [2022-11-20 12:29:18,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72524 to 61463. [2022-11-20 12:29:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61463 states, 61462 states have (on average 1.0823761023071166) internal successors, (66525), 61462 states have internal predecessors, (66525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:18,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61463 states to 61463 states and 66525 transitions. [2022-11-20 12:29:18,507 INFO L78 Accepts]: Start accepts. Automaton has 61463 states and 66525 transitions. Word has length 634 [2022-11-20 12:29:18,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:18,508 INFO L495 AbstractCegarLoop]: Abstraction has 61463 states and 66525 transitions. [2022-11-20 12:29:18,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 61463 states and 66525 transitions. [2022-11-20 12:29:18,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2022-11-20 12:29:18,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:18,539 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:18,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:29:18,540 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:29:18,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:18,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1361734072, now seen corresponding path program 1 times [2022-11-20 12:29:18,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:18,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748937815] [2022-11-20 12:29:18,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:18,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:20,126 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 461 proven. 160 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-20 12:29:20,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:20,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748937815] [2022-11-20 12:29:20,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748937815] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:20,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569103456] [2022-11-20 12:29:20,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:20,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:20,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:20,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:20,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:29:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:20,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:29:20,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 391 proven. 78 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-11-20 12:29:20,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:29:21,277 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-11-20 12:29:21,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569103456] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:21,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:29:21,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 8 [2022-11-20 12:29:21,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594675024] [2022-11-20 12:29:21,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:21,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:29:21,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:21,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:29:21,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:29:21,281 INFO L87 Difference]: Start difference. First operand 61463 states and 66525 transitions. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:26,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:26,084 INFO L93 Difference]: Finished difference Result 138258 states and 149584 transitions. [2022-11-20 12:29:26,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:29:26,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 726 [2022-11-20 12:29:26,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:26,148 INFO L225 Difference]: With dead ends: 138258 [2022-11-20 12:29:26,148 INFO L226 Difference]: Without dead ends: 76797 [2022-11-20 12:29:26,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1454 GetRequests, 1448 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:29:26,166 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 805 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 2681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:26,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 166 Invalid, 2681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 2229 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-20 12:29:26,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76797 states. [2022-11-20 12:29:26,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76797 to 69989. [2022-11-20 12:29:26,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69989 states, 69988 states have (on average 1.0794564782534148) internal successors, (75549), 69988 states have internal predecessors, (75549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:27,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69989 states to 69989 states and 75549 transitions. [2022-11-20 12:29:27,005 INFO L78 Accepts]: Start accepts. Automaton has 69989 states and 75549 transitions. Word has length 726 [2022-11-20 12:29:27,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:27,005 INFO L495 AbstractCegarLoop]: Abstraction has 69989 states and 75549 transitions. [2022-11-20 12:29:27,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:27,006 INFO L276 IsEmpty]: Start isEmpty. Operand 69989 states and 75549 transitions. [2022-11-20 12:29:27,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2022-11-20 12:29:27,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:27,033 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 12:29:27,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:29:27,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 12:29:27,234 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:29:27,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:27,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1325675448, now seen corresponding path program 1 times [2022-11-20 12:29:27,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:27,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459918183] [2022-11-20 12:29:27,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:27,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 571 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-20 12:29:27,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:27,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459918183] [2022-11-20 12:29:27,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459918183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:27,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:27,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:29:27,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305378592] [2022-11-20 12:29:27,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:27,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:29:27,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:27,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:29:27,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:27,946 INFO L87 Difference]: Start difference. First operand 69989 states and 75549 transitions. Second operand has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:31,167 INFO L93 Difference]: Finished difference Result 137838 states and 148774 transitions. [2022-11-20 12:29:31,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:29:31,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 751 [2022-11-20 12:29:31,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:31,244 INFO L225 Difference]: With dead ends: 137838 [2022-11-20 12:29:31,244 INFO L226 Difference]: Without dead ends: 68276 [2022-11-20 12:29:31,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:31,261 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 489 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:31,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 658 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 12:29:31,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68276 states. [2022-11-20 12:29:32,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68276 to 67847. [2022-11-20 12:29:32,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67847 states, 67846 states have (on average 1.07279721722725) internal successors, (72785), 67846 states have internal predecessors, (72785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:32,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67847 states to 67847 states and 72785 transitions. [2022-11-20 12:29:32,198 INFO L78 Accepts]: Start accepts. Automaton has 67847 states and 72785 transitions. Word has length 751 [2022-11-20 12:29:32,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:32,199 INFO L495 AbstractCegarLoop]: Abstraction has 67847 states and 72785 transitions. [2022-11-20 12:29:32,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:32,199 INFO L276 IsEmpty]: Start isEmpty. Operand 67847 states and 72785 transitions. [2022-11-20 12:29:32,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2022-11-20 12:29:32,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:32,228 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:32,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 12:29:32,228 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:29:32,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:32,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2043822140, now seen corresponding path program 1 times [2022-11-20 12:29:32,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:32,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126814207] [2022-11-20 12:29:32,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:32,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 510 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-11-20 12:29:33,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:33,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126814207] [2022-11-20 12:29:33,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126814207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:33,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:33,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:29:33,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357996542] [2022-11-20 12:29:33,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:33,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:29:33,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:33,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:29:33,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:29:33,069 INFO L87 Difference]: Start difference. First operand 67847 states and 72785 transitions. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:37,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:37,177 INFO L93 Difference]: Finished difference Result 156568 states and 168036 transitions. [2022-11-20 12:29:37,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:29:37,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 776 [2022-11-20 12:29:37,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:37,282 INFO L225 Difference]: With dead ends: 156568 [2022-11-20 12:29:37,282 INFO L226 Difference]: Without dead ends: 89148 [2022-11-20 12:29:37,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:29:37,318 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 579 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 2554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:37,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 257 Invalid, 2554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 2244 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-20 12:29:37,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89148 states. [2022-11-20 12:29:38,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89148 to 75916. [2022-11-20 12:29:38,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75916 states, 75915 states have (on average 1.0648093262201146) internal successors, (80835), 75915 states have internal predecessors, (80835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75916 states to 75916 states and 80835 transitions. [2022-11-20 12:29:38,728 INFO L78 Accepts]: Start accepts. Automaton has 75916 states and 80835 transitions. Word has length 776 [2022-11-20 12:29:38,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:38,729 INFO L495 AbstractCegarLoop]: Abstraction has 75916 states and 80835 transitions. [2022-11-20 12:29:38,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:38,730 INFO L276 IsEmpty]: Start isEmpty. Operand 75916 states and 80835 transitions. [2022-11-20 12:29:38,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 783 [2022-11-20 12:29:38,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:38,771 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:38,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 12:29:38,773 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:29:38,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:38,774 INFO L85 PathProgramCache]: Analyzing trace with hash 96273895, now seen corresponding path program 1 times [2022-11-20 12:29:38,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:38,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276586234] [2022-11-20 12:29:38,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:38,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:39,873 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 516 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-11-20 12:29:39,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:39,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276586234] [2022-11-20 12:29:39,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276586234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:39,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:39,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:29:39,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268961312] [2022-11-20 12:29:39,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:39,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:29:39,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:39,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:29:39,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:29:39,882 INFO L87 Difference]: Start difference. First operand 75916 states and 80835 transitions. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:44,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:44,144 INFO L93 Difference]: Finished difference Result 163773 states and 174095 transitions. [2022-11-20 12:29:44,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:29:44,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 782 [2022-11-20 12:29:44,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:44,229 INFO L225 Difference]: With dead ends: 163773 [2022-11-20 12:29:44,230 INFO L226 Difference]: Without dead ends: 88284 [2022-11-20 12:29:44,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:29:44,266 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 586 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2366 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 2634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 2366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:44,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 286 Invalid, 2634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 2366 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-20 12:29:44,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88284 states. [2022-11-20 12:29:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88284 to 76343. [2022-11-20 12:29:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76343 states, 76342 states have (on average 1.0646040187576957) internal successors, (81274), 76342 states have internal predecessors, (81274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:45,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76343 states to 76343 states and 81274 transitions. [2022-11-20 12:29:45,606 INFO L78 Accepts]: Start accepts. Automaton has 76343 states and 81274 transitions. Word has length 782 [2022-11-20 12:29:45,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:45,607 INFO L495 AbstractCegarLoop]: Abstraction has 76343 states and 81274 transitions. [2022-11-20 12:29:45,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:45,607 INFO L276 IsEmpty]: Start isEmpty. Operand 76343 states and 81274 transitions. [2022-11-20 12:29:45,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2022-11-20 12:29:45,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:45,655 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:45,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 12:29:45,655 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:29:45,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:45,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1280526696, now seen corresponding path program 1 times [2022-11-20 12:29:45,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:45,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550100694] [2022-11-20 12:29:45,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:45,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-20 12:29:46,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:46,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550100694] [2022-11-20 12:29:46,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550100694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:46,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:46,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:29:46,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214207803] [2022-11-20 12:29:46,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:46,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:29:46,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:46,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:29:46,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:46,865 INFO L87 Difference]: Start difference. First operand 76343 states and 81274 transitions. Second operand has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:50,010 INFO L93 Difference]: Finished difference Result 160358 states and 170654 transitions. [2022-11-20 12:29:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:29:50,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 788 [2022-11-20 12:29:50,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:50,094 INFO L225 Difference]: With dead ends: 160358 [2022-11-20 12:29:50,094 INFO L226 Difference]: Without dead ends: 82734 [2022-11-20 12:29:50,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:50,129 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 306 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:50,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 605 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 12:29:50,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82734 states. [2022-11-20 12:29:51,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82734 to 78044. [2022-11-20 12:29:51,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78044 states, 78043 states have (on average 1.0603000909754878) internal successors, (82749), 78043 states have internal predecessors, (82749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:51,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78044 states to 78044 states and 82749 transitions. [2022-11-20 12:29:51,191 INFO L78 Accepts]: Start accepts. Automaton has 78044 states and 82749 transitions. Word has length 788 [2022-11-20 12:29:51,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:51,192 INFO L495 AbstractCegarLoop]: Abstraction has 78044 states and 82749 transitions. [2022-11-20 12:29:51,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:51,192 INFO L276 IsEmpty]: Start isEmpty. Operand 78044 states and 82749 transitions. [2022-11-20 12:29:51,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2022-11-20 12:29:51,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:29:51,221 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:51,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 12:29:51,222 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:29:51,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:51,223 INFO L85 PathProgramCache]: Analyzing trace with hash 706382245, now seen corresponding path program 1 times [2022-11-20 12:29:51,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:51,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780954902] [2022-11-20 12:29:51,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:51,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 754 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-20 12:29:54,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:54,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780954902] [2022-11-20 12:29:54,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780954902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:54,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:54,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:29:54,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003959929] [2022-11-20 12:29:54,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:54,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:54,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:54,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:54,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:54,378 INFO L87 Difference]: Start difference. First operand 78044 states and 82749 transitions. Second operand has 6 states, 6 states have (on average 129.0) internal successors, (774), 5 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:59,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:59,487 INFO L93 Difference]: Finished difference Result 156405 states and 165823 transitions. [2022-11-20 12:29:59,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:29:59,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 129.0) internal successors, (774), 5 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 808 [2022-11-20 12:29:59,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:59,568 INFO L225 Difference]: With dead ends: 156405 [2022-11-20 12:29:59,568 INFO L226 Difference]: Without dead ends: 78788 [2022-11-20 12:29:59,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:29:59,597 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 1447 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 4168 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 4339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 4168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:59,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 256 Invalid, 4339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 4168 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-20 12:29:59,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78788 states. [2022-11-20 12:30:00,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78788 to 78469. [2022-11-20 12:30:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78469 states, 78468 states have (on average 1.0599989804761176) internal successors, (83176), 78468 states have internal predecessors, (83176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:00,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78469 states to 78469 states and 83176 transitions. [2022-11-20 12:30:00,737 INFO L78 Accepts]: Start accepts. Automaton has 78469 states and 83176 transitions. Word has length 808 [2022-11-20 12:30:00,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:30:00,738 INFO L495 AbstractCegarLoop]: Abstraction has 78469 states and 83176 transitions. [2022-11-20 12:30:00,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.0) internal successors, (774), 5 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:00,738 INFO L276 IsEmpty]: Start isEmpty. Operand 78469 states and 83176 transitions. [2022-11-20 12:30:00,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2022-11-20 12:30:00,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:30:00,771 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:00,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 12:30:00,772 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:30:00,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:00,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1551425783, now seen corresponding path program 1 times [2022-11-20 12:30:00,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:00,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892624971] [2022-11-20 12:30:00,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:00,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:02,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 1060 proven. 105 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-20 12:30:02,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:02,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892624971] [2022-11-20 12:30:02,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892624971] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:30:02,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722575638] [2022-11-20 12:30:02,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:02,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:02,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:30:02,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:30:02,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:30:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:02,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:30:02,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:23,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1247 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 1073 trivial. 0 not checked. [2022-11-20 12:30:23,687 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:30:23,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722575638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:23,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:30:23,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-20 12:30:23,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475331833] [2022-11-20 12:30:23,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:23,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:23,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:23,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:23,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:30:23,690 INFO L87 Difference]: Start difference. First operand 78469 states and 83176 transitions. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:26,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:30:26,588 INFO L93 Difference]: Finished difference Result 165027 states and 174724 transitions. [2022-11-20 12:30:26,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:26,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 881 [2022-11-20 12:30:26,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:30:26,672 INFO L225 Difference]: With dead ends: 165027 [2022-11-20 12:30:26,673 INFO L226 Difference]: Without dead ends: 86556 [2022-11-20 12:30:26,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 885 GetRequests, 881 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:30:26,710 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 468 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:30:26,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 122 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:30:26,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86556 states. [2022-11-20 12:30:27,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86556 to 69912. [2022-11-20 12:30:27,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69912 states, 69911 states have (on average 1.0581310523379726) internal successors, (73975), 69911 states have internal predecessors, (73975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:27,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69912 states to 69912 states and 73975 transitions. [2022-11-20 12:30:27,616 INFO L78 Accepts]: Start accepts. Automaton has 69912 states and 73975 transitions. Word has length 881 [2022-11-20 12:30:27,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:30:27,617 INFO L495 AbstractCegarLoop]: Abstraction has 69912 states and 73975 transitions. [2022-11-20 12:30:27,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:27,617 INFO L276 IsEmpty]: Start isEmpty. Operand 69912 states and 73975 transitions. [2022-11-20 12:30:27,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2022-11-20 12:30:27,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:30:27,652 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 12:30:27,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:30:27,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b21a622b-c855-4fb9-ac31-9ca6530cd71c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:30:27,854 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:30:27,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:27,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1614217377, now seen corresponding path program 1 times [2022-11-20 12:30:27,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:27,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514613439] [2022-11-20 12:30:27,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:27,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 1052 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-20 12:30:28,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:28,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514613439] [2022-11-20 12:30:28,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514613439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:28,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:28,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:30:28,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095131528] [2022-11-20 12:30:28,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:28,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:30:28,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:28,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:30:28,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:30:28,607 INFO L87 Difference]: Start difference. First operand 69912 states and 73975 transitions. Second operand has 4 states, 4 states have (on average 200.5) internal successors, (802), 4 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:33,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:30:33,180 INFO L93 Difference]: Finished difference Result 159409 states and 168560 transitions. [2022-11-20 12:30:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:30:33,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 200.5) internal successors, (802), 4 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 956 [2022-11-20 12:30:33,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:30:33,306 INFO L225 Difference]: With dead ends: 159409 [2022-11-20 12:30:33,307 INFO L226 Difference]: Without dead ends: 89499 [2022-11-20 12:30:33,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:30:33,355 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 328 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:30:33,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 187 Invalid, 2614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 12:30:33,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89499 states.