./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbc8b86e86cd6737c503bef017b2b1abd25895fb1927b426e7290e477fc0b63c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 20:14:12,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:14:12,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:14:12,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:14:12,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:14:12,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:14:12,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:14:12,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:14:12,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:14:12,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:14:12,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:14:12,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:14:12,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:14:12,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:14:12,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:14:12,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:14:12,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:14:12,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:14:12,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:14:12,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:14:12,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:14:12,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:14:12,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:14:12,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:14:12,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:14:12,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:14:12,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:14:12,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:14:12,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:14:12,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:14:12,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:14:12,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:14:12,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:14:12,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:14:12,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:14:12,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:14:12,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:14:12,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:14:12,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:14:12,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:14:12,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:14:12,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 20:14:12,792 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:14:12,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:14:12,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:14:12,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:14:12,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:14:12,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:14:12,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:14:12,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:14:12,794 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:14:12,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:14:12,795 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:14:12,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:14:12,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:14:12,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:14:12,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:14:12,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:14:12,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:14:12,796 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:14:12,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:14:12,796 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:14:12,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:14:12,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:14:12,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:14:12,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:14:12,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:14:12,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:14:12,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:14:12,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:14:12,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:14:12,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:14:12,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:14:12,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:14:12,798 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:14:12,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:14:12,798 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:14:12,798 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbc8b86e86cd6737c503bef017b2b1abd25895fb1927b426e7290e477fc0b63c [2022-12-13 20:14:12,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:14:13,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:14:13,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:14:13,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:14:13,005 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:14:13,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-rers2012/Problem14_label04.c [2022-12-13 20:14:15,550 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:14:15,740 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:14:15,740 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/sv-benchmarks/c/eca-rers2012/Problem14_label04.c [2022-12-13 20:14:15,748 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/data/0205b6db0/9342fdb2f84a4fb1830b030ca6803e9f/FLAG72c411452 [2022-12-13 20:14:15,759 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/data/0205b6db0/9342fdb2f84a4fb1830b030ca6803e9f [2022-12-13 20:14:15,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:14:15,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:14:15,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:14:15,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:14:15,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:14:15,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:14:15" (1/1) ... [2022-12-13 20:14:15,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62fdd007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:15, skipping insertion in model container [2022-12-13 20:14:15,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:14:15" (1/1) ... [2022-12-13 20:14:15,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:14:15,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:14:15,958 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_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/sv-benchmarks/c/eca-rers2012/Problem14_label04.c[5382,5395] [2022-12-13 20:14:16,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:14:16,119 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:14:16,139 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_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/sv-benchmarks/c/eca-rers2012/Problem14_label04.c[5382,5395] [2022-12-13 20:14:16,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:14:16,230 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:14:16,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16 WrapperNode [2022-12-13 20:14:16,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:14:16,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:14:16,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:14:16,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:14:16,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (1/1) ... [2022-12-13 20:14:16,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (1/1) ... [2022-12-13 20:14:16,318 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2022-12-13 20:14:16,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:14:16,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:14:16,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:14:16,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:14:16,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (1/1) ... [2022-12-13 20:14:16,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (1/1) ... [2022-12-13 20:14:16,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (1/1) ... [2022-12-13 20:14:16,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (1/1) ... [2022-12-13 20:14:16,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (1/1) ... [2022-12-13 20:14:16,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (1/1) ... [2022-12-13 20:14:16,384 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (1/1) ... [2022-12-13 20:14:16,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (1/1) ... [2022-12-13 20:14:16,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:14:16,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:14:16,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:14:16,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:14:16,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (1/1) ... [2022-12-13 20:14:16,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:14:16,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:14:16,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:14:16,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:14:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:14:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:14:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:14:16,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:14:16,508 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:14:16,509 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:14:17,433 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:14:17,443 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:14:17,443 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 20:14:17,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:14:17 BoogieIcfgContainer [2022-12-13 20:14:17,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:14:17,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:14:17,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:14:17,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:14:17,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:14:15" (1/3) ... [2022-12-13 20:14:17,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0184b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:14:17, skipping insertion in model container [2022-12-13 20:14:17,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:14:16" (2/3) ... [2022-12-13 20:14:17,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0184b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:14:17, skipping insertion in model container [2022-12-13 20:14:17,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:14:17" (3/3) ... [2022-12-13 20:14:17,456 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label04.c [2022-12-13 20:14:17,474 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:14:17,474 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:14:17,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:14:17,521 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;@4eb96a9c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:14:17,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 20:14:17,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:17,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-13 20:14:17,532 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:17,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:14:17,533 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:17,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:17,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1382487458, now seen corresponding path program 1 times [2022-12-13 20:14:17,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:17,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316421631] [2022-12-13 20:14:17,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:17,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:14:17,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:17,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316421631] [2022-12-13 20:14:17,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316421631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:17,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:14:17,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:14:17,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946654262] [2022-12-13 20:14:17,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:17,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:14:17,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:17,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:14:17,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:14:17,873 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 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 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:19,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:19,187 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2022-12-13 20:14:19,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:14:19,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-12-13 20:14:19,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:19,200 INFO L225 Difference]: With dead ends: 850 [2022-12-13 20:14:19,200 INFO L226 Difference]: Without dead ends: 538 [2022-12-13 20:14:19,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:14:19,204 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 485 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:19,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 194 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 20:14:19,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-12-13 20:14:19,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-12-13 20:14:19,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:19,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2022-12-13 20:14:19,249 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 52 [2022-12-13 20:14:19,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:19,249 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2022-12-13 20:14:19,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:19,250 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2022-12-13 20:14:19,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-12-13 20:14:19,252 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:19,252 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, 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] [2022-12-13 20:14:19,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:14:19,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:19,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:19,253 INFO L85 PathProgramCache]: Analyzing trace with hash 327314734, now seen corresponding path program 1 times [2022-12-13 20:14:19,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:19,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266902147] [2022-12-13 20:14:19,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:19,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:19,478 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:14:19,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:19,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266902147] [2022-12-13 20:14:19,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266902147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:19,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:14:19,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:14:19,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424546348] [2022-12-13 20:14:19,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:19,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:14:19,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:19,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:14:19,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:14:19,482 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:20,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:20,149 INFO L93 Difference]: Finished difference Result 1281 states and 1978 transitions. [2022-12-13 20:14:20,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:14:20,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-12-13 20:14:20,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:20,155 INFO L225 Difference]: With dead ends: 1281 [2022-12-13 20:14:20,155 INFO L226 Difference]: Without dead ends: 894 [2022-12-13 20:14:20,156 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 [2022-12-13 20:14:20,157 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 116 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:20,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 119 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 20:14:20,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-12-13 20:14:20,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 716. [2022-12-13 20:14:20,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.220979020979021) internal successors, (873), 715 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 873 transitions. [2022-12-13 20:14:20,174 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 873 transitions. Word has length 132 [2022-12-13 20:14:20,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:20,175 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 873 transitions. [2022-12-13 20:14:20,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:20,175 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 873 transitions. [2022-12-13 20:14:20,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-12-13 20:14:20,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:20,178 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:14:20,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:14:20,178 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:20,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:20,178 INFO L85 PathProgramCache]: Analyzing trace with hash 138717315, now seen corresponding path program 1 times [2022-12-13 20:14:20,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:20,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503470624] [2022-12-13 20:14:20,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:20,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:20,541 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 99 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:14:20,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:20,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503470624] [2022-12-13 20:14:20,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503470624] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:14:20,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110864017] [2022-12-13 20:14:20,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:20,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:20,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:14:20,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:14:20,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 20:14:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:20,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:14:20,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:14:20,747 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-12-13 20:14:20,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:14:20,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110864017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:20,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:14:20,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-12-13 20:14:20,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197952823] [2022-12-13 20:14:20,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:20,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:14:20,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:20,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:14:20,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:14:20,750 INFO L87 Difference]: Start difference. First operand 716 states and 873 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:21,173 INFO L93 Difference]: Finished difference Result 1608 states and 2071 transitions. [2022-12-13 20:14:21,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:14:21,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 223 [2022-12-13 20:14:21,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:21,177 INFO L225 Difference]: With dead ends: 1608 [2022-12-13 20:14:21,178 INFO L226 Difference]: Without dead ends: 1072 [2022-12-13 20:14:21,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:14:21,179 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 131 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:21,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 85 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:14:21,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-12-13 20:14:21,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2022-12-13 20:14:21,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.211646136618141) internal successors, (1082), 893 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:21,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1082 transitions. [2022-12-13 20:14:21,198 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1082 transitions. Word has length 223 [2022-12-13 20:14:21,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:21,199 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1082 transitions. [2022-12-13 20:14:21,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:21,199 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1082 transitions. [2022-12-13 20:14:21,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-12-13 20:14:21,202 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:21,202 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:14:21,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:14:21,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:21,403 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:21,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:21,403 INFO L85 PathProgramCache]: Analyzing trace with hash 880914236, now seen corresponding path program 1 times [2022-12-13 20:14:21,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:21,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660964773] [2022-12-13 20:14:21,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:21,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:21,621 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:14:21,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:21,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660964773] [2022-12-13 20:14:21,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660964773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:21,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:14:21,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:14:21,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482003791] [2022-12-13 20:14:21,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:21,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:14:21,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:21,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:14:21,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:14:21,624 INFO L87 Difference]: Start difference. First operand 894 states and 1082 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:22,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:22,057 INFO L93 Difference]: Finished difference Result 1964 states and 2415 transitions. [2022-12-13 20:14:22,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:14:22,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 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 226 [2022-12-13 20:14:22,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:22,062 INFO L225 Difference]: With dead ends: 1964 [2022-12-13 20:14:22,062 INFO L226 Difference]: Without dead ends: 1250 [2022-12-13 20:14:22,063 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 [2022-12-13 20:14:22,065 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:22,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 58 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:14:22,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-12-13 20:14:22,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2022-12-13 20:14:22,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.1753402722177742) internal successors, (1468), 1249 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:22,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1468 transitions. [2022-12-13 20:14:22,092 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1468 transitions. Word has length 226 [2022-12-13 20:14:22,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:22,093 INFO L495 AbstractCegarLoop]: Abstraction has 1250 states and 1468 transitions. [2022-12-13 20:14:22,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:22,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1468 transitions. [2022-12-13 20:14:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-12-13 20:14:22,101 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:22,101 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, 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, 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] [2022-12-13 20:14:22,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:14:22,102 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:22,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:22,102 INFO L85 PathProgramCache]: Analyzing trace with hash 142603424, now seen corresponding path program 1 times [2022-12-13 20:14:22,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:22,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108426881] [2022-12-13 20:14:22,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:22,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:22,537 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 228 proven. 130 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-12-13 20:14:22,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:22,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108426881] [2022-12-13 20:14:22,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108426881] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:14:22,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238351640] [2022-12-13 20:14:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:22,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:22,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:14:22,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:14:22,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 20:14:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:22,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:14:22,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:14:22,952 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-12-13 20:14:22,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:14:22,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238351640] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:22,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:14:22,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 20:14:22,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216890195] [2022-12-13 20:14:22,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:22,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:14:22,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:22,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:14:22,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:14:22,956 INFO L87 Difference]: Start difference. First operand 1250 states and 1468 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:23,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:23,379 INFO L93 Difference]: Finished difference Result 2854 states and 3498 transitions. [2022-12-13 20:14:23,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:14:23,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 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 386 [2022-12-13 20:14:23,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:23,386 INFO L225 Difference]: With dead ends: 2854 [2022-12-13 20:14:23,386 INFO L226 Difference]: Without dead ends: 1962 [2022-12-13 20:14:23,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:14:23,388 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 65 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:23,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:14:23,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-12-13 20:14:23,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2022-12-13 20:14:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1662417134115248) internal successors, (2287), 1961 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2287 transitions. [2022-12-13 20:14:23,425 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2287 transitions. Word has length 386 [2022-12-13 20:14:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:23,426 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 2287 transitions. [2022-12-13 20:14:23,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:23,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2287 transitions. [2022-12-13 20:14:23,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-12-13 20:14:23,436 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:23,436 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, 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, 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] [2022-12-13 20:14:23,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 20:14:23,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:23,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:23,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:23,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1255761555, now seen corresponding path program 1 times [2022-12-13 20:14:23,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:23,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79720438] [2022-12-13 20:14:23,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:23,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-12-13 20:14:23,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:23,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79720438] [2022-12-13 20:14:23,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79720438] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:14:23,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032262830] [2022-12-13 20:14:23,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:23,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:23,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:14:23,985 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:14:23,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 20:14:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:24,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:14:24,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:14:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2022-12-13 20:14:24,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:14:24,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032262830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:24,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:14:24,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-12-13 20:14:24,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146313662] [2022-12-13 20:14:24,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:24,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:14:24,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:24,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:14:24,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:14:24,483 INFO L87 Difference]: Start difference. First operand 1962 states and 2287 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:24,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:24,845 INFO L93 Difference]: Finished difference Result 2854 states and 3290 transitions. [2022-12-13 20:14:24,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:14:24,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 432 [2022-12-13 20:14:24,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:24,852 INFO L225 Difference]: With dead ends: 2854 [2022-12-13 20:14:24,853 INFO L226 Difference]: Without dead ends: 2852 [2022-12-13 20:14:24,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:14:24,854 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:24,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 28 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 20:14:24,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2022-12-13 20:14:24,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1784. [2022-12-13 20:14:24,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1402131239484015) internal successors, (2033), 1783 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:24,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2033 transitions. [2022-12-13 20:14:24,889 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2033 transitions. Word has length 432 [2022-12-13 20:14:24,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:24,889 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 2033 transitions. [2022-12-13 20:14:24,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:24,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2033 transitions. [2022-12-13 20:14:24,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2022-12-13 20:14:24,892 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:24,892 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:14:24,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 20:14:25,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 20:14:25,093 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:25,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:25,093 INFO L85 PathProgramCache]: Analyzing trace with hash -35807260, now seen corresponding path program 1 times [2022-12-13 20:14:25,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:25,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152254802] [2022-12-13 20:14:25,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:25,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-12-13 20:14:25,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:25,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152254802] [2022-12-13 20:14:25,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152254802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:25,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:14:25,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:14:25,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007364867] [2022-12-13 20:14:25,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:25,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:14:25,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:25,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:14:25,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:14:25,367 INFO L87 Difference]: Start difference. First operand 1784 states and 2033 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:25,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:25,780 INFO L93 Difference]: Finished difference Result 3417 states and 3936 transitions. [2022-12-13 20:14:25,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:14:25,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 434 [2022-12-13 20:14:25,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:25,783 INFO L225 Difference]: With dead ends: 3417 [2022-12-13 20:14:25,784 INFO L226 Difference]: Without dead ends: 1962 [2022-12-13 20:14:25,785 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 [2022-12-13 20:14:25,785 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:25,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 17 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:14:25,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-12-13 20:14:25,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2022-12-13 20:14:25,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.089736399326977) internal successors, (1943), 1783 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:25,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1943 transitions. [2022-12-13 20:14:25,812 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1943 transitions. Word has length 434 [2022-12-13 20:14:25,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:25,812 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 1943 transitions. [2022-12-13 20:14:25,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1943 transitions. [2022-12-13 20:14:25,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-12-13 20:14:25,814 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:25,815 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 20:14:25,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:14:25,815 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:25,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:25,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1854062487, now seen corresponding path program 1 times [2022-12-13 20:14:25,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:25,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029837392] [2022-12-13 20:14:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:25,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:26,099 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 405 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-12-13 20:14:26,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:26,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029837392] [2022-12-13 20:14:26,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029837392] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:26,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:14:26,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:14:26,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269987974] [2022-12-13 20:14:26,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:26,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:14:26,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:26,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:14:26,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:14:26,102 INFO L87 Difference]: Start difference. First operand 1784 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:26,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:26,547 INFO L93 Difference]: Finished difference Result 3922 states and 4347 transitions. [2022-12-13 20:14:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:14:26,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 445 [2022-12-13 20:14:26,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:26,554 INFO L225 Difference]: With dead ends: 3922 [2022-12-13 20:14:26,554 INFO L226 Difference]: Without dead ends: 2496 [2022-12-13 20:14:26,555 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 [2022-12-13 20:14:26,555 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:26,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:14:26,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-12-13 20:14:26,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2022-12-13 20:14:26,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.092184368737475) internal successors, (2725), 2495 states have internal predecessors, (2725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:26,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2725 transitions. [2022-12-13 20:14:26,580 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2725 transitions. Word has length 445 [2022-12-13 20:14:26,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:26,580 INFO L495 AbstractCegarLoop]: Abstraction has 2496 states and 2725 transitions. [2022-12-13 20:14:26,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:26,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2725 transitions. [2022-12-13 20:14:26,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-12-13 20:14:26,583 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:26,583 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, 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, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:14:26,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:14:26,583 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:26,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1718197722, now seen corresponding path program 1 times [2022-12-13 20:14:26,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:26,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478003084] [2022-12-13 20:14:26,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:26,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:26,773 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-12-13 20:14:26,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:26,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478003084] [2022-12-13 20:14:26,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478003084] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:26,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:14:26,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:14:26,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7479065] [2022-12-13 20:14:26,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:26,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:14:26,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:26,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:14:26,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:14:26,776 INFO L87 Difference]: Start difference. First operand 2496 states and 2725 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:27,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:27,206 INFO L93 Difference]: Finished difference Result 5880 states and 6513 transitions. [2022-12-13 20:14:27,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:14:27,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 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 486 [2022-12-13 20:14:27,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:27,215 INFO L225 Difference]: With dead ends: 5880 [2022-12-13 20:14:27,215 INFO L226 Difference]: Without dead ends: 3742 [2022-12-13 20:14:27,216 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 [2022-12-13 20:14:27,217 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:27,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 50 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:14:27,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-12-13 20:14:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2022-12-13 20:14:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0828655439722) internal successors, (4051), 3741 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:27,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4051 transitions. [2022-12-13 20:14:27,254 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4051 transitions. Word has length 486 [2022-12-13 20:14:27,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:27,254 INFO L495 AbstractCegarLoop]: Abstraction has 3742 states and 4051 transitions. [2022-12-13 20:14:27,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:27,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4051 transitions. [2022-12-13 20:14:27,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2022-12-13 20:14:27,257 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:27,257 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, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:14:27,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:14:27,257 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:27,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:27,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1589037133, now seen corresponding path program 1 times [2022-12-13 20:14:27,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:27,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154912121] [2022-12-13 20:14:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:27,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:27,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 685 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-12-13 20:14:27,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:27,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154912121] [2022-12-13 20:14:27,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154912121] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:27,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:14:27,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:14:27,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832361916] [2022-12-13 20:14:27,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:27,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:14:27,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:27,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:14:27,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:14:27,577 INFO L87 Difference]: Start difference. First operand 3742 states and 4051 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:27,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:27,995 INFO L93 Difference]: Finished difference Result 6948 states and 7546 transitions. [2022-12-13 20:14:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:14:27,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 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 522 [2022-12-13 20:14:27,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:28,001 INFO L225 Difference]: With dead ends: 6948 [2022-12-13 20:14:28,001 INFO L226 Difference]: Without dead ends: 3564 [2022-12-13 20:14:28,003 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 [2022-12-13 20:14:28,003 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 103 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:28,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 242 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:14:28,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2022-12-13 20:14:28,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2022-12-13 20:14:28,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.078578110383536) internal successors, (3459), 3207 states have internal predecessors, (3459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:28,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3459 transitions. [2022-12-13 20:14:28,051 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3459 transitions. Word has length 522 [2022-12-13 20:14:28,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:28,052 INFO L495 AbstractCegarLoop]: Abstraction has 3208 states and 3459 transitions. [2022-12-13 20:14:28,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3459 transitions. [2022-12-13 20:14:28,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2022-12-13 20:14:28,057 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:28,057 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, 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, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2022-12-13 20:14:28,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 20:14:28,057 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:28,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:28,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1310836641, now seen corresponding path program 1 times [2022-12-13 20:14:28,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:28,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439873862] [2022-12-13 20:14:28,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:28,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:28,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 892 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-12-13 20:14:28,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:28,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439873862] [2022-12-13 20:14:28,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439873862] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:14:28,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934122228] [2022-12-13 20:14:28,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:28,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:28,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:14:28,372 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:14:28,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 20:14:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:28,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:14:28,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:14:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 892 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-12-13 20:14:28,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:14:29,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 892 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-12-13 20:14:29,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934122228] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:14:29,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:14:29,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-12-13 20:14:29,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781757268] [2022-12-13 20:14:29,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:14:29,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:14:29,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:29,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:14:29,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:14:29,006 INFO L87 Difference]: Start difference. First operand 3208 states and 3459 transitions. Second operand has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:29,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:29,691 INFO L93 Difference]: Finished difference Result 7482 states and 8139 transitions. [2022-12-13 20:14:29,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:14:29,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 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 641 [2022-12-13 20:14:29,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:29,700 INFO L225 Difference]: With dead ends: 7482 [2022-12-13 20:14:29,701 INFO L226 Difference]: Without dead ends: 4632 [2022-12-13 20:14:29,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1284 GetRequests, 1280 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:14:29,702 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 267 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:29,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 64 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 20:14:29,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2022-12-13 20:14:29,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4276. [2022-12-13 20:14:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.0776608187134502) internal successors, (4607), 4275 states have internal predecessors, (4607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:29,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4607 transitions. [2022-12-13 20:14:29,738 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4607 transitions. Word has length 641 [2022-12-13 20:14:29,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:29,739 INFO L495 AbstractCegarLoop]: Abstraction has 4276 states and 4607 transitions. [2022-12-13 20:14:29,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:29,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4607 transitions. [2022-12-13 20:14:29,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2022-12-13 20:14:29,743 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:29,743 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 3, 3, 3, 3, 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] [2022-12-13 20:14:29,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 20:14:29,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:29,945 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:29,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:29,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2043682623, now seen corresponding path program 1 times [2022-12-13 20:14:29,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:29,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621813017] [2022-12-13 20:14:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:29,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1038 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2022-12-13 20:14:30,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:30,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621813017] [2022-12-13 20:14:30,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621813017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:30,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:14:30,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:14:30,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977087326] [2022-12-13 20:14:30,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:30,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:14:30,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:30,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:14:30,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:14:30,236 INFO L87 Difference]: Start difference. First operand 4276 states and 4607 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:30,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:30,580 INFO L93 Difference]: Finished difference Result 9618 states and 10448 transitions. [2022-12-13 20:14:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:14:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 713 [2022-12-13 20:14:30,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:30,589 INFO L225 Difference]: With dead ends: 9618 [2022-12-13 20:14:30,589 INFO L226 Difference]: Without dead ends: 5700 [2022-12-13 20:14:30,591 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 [2022-12-13 20:14:30,591 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 110 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:30,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 37 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 20:14:30,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-12-13 20:14:30,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5344. [2022-12-13 20:14:30,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.078420363091896) internal successors, (5762), 5343 states have internal predecessors, (5762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:30,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5762 transitions. [2022-12-13 20:14:30,638 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5762 transitions. Word has length 713 [2022-12-13 20:14:30,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:30,638 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5762 transitions. [2022-12-13 20:14:30,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:30,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5762 transitions. [2022-12-13 20:14:30,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2022-12-13 20:14:30,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:30,643 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 3, 3, 3, 3, 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] [2022-12-13 20:14:30,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 20:14:30,643 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:30,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:30,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1828962068, now seen corresponding path program 1 times [2022-12-13 20:14:30,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:30,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674136714] [2022-12-13 20:14:30,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:30,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:31,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1146 proven. 93 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-12-13 20:14:31,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:31,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674136714] [2022-12-13 20:14:31,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674136714] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:14:31,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147120736] [2022-12-13 20:14:31,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:31,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:31,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:14:31,106 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:14:31,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 20:14:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:31,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:14:31,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:14:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 1239 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-12-13 20:14:31,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:14:31,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147120736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:31,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:14:31,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-12-13 20:14:31,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069293014] [2022-12-13 20:14:31,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:31,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:14:31,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:31,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:14:31,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:14:31,583 INFO L87 Difference]: Start difference. First operand 5344 states and 5762 transitions. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:31,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:31,987 INFO L93 Difference]: Finished difference Result 10864 states and 11716 transitions. [2022-12-13 20:14:31,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:14:31,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 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 731 [2022-12-13 20:14:31,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:31,995 INFO L225 Difference]: With dead ends: 10864 [2022-12-13 20:14:31,996 INFO L226 Difference]: Without dead ends: 5878 [2022-12-13 20:14:31,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:14:31,999 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:31,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 64 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:14:32,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-12-13 20:14:32,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5522. [2022-12-13 20:14:32,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0760731751494295) internal successors, (5941), 5521 states have internal predecessors, (5941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:32,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5941 transitions. [2022-12-13 20:14:32,043 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5941 transitions. Word has length 731 [2022-12-13 20:14:32,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:32,043 INFO L495 AbstractCegarLoop]: Abstraction has 5522 states and 5941 transitions. [2022-12-13 20:14:32,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:32,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5941 transitions. [2022-12-13 20:14:32,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2022-12-13 20:14:32,048 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:32,048 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:14:32,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 20:14:32,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:32,250 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:32,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:32,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1867062169, now seen corresponding path program 1 times [2022-12-13 20:14:32,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:32,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694467845] [2022-12-13 20:14:32,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:32,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:32,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1758 backedges. 1071 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2022-12-13 20:14:32,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:32,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694467845] [2022-12-13 20:14:32,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694467845] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:32,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:14:32,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:14:32,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145842367] [2022-12-13 20:14:32,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:32,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:14:32,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:32,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:14:32,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:14:32,803 INFO L87 Difference]: Start difference. First operand 5522 states and 5941 transitions. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:33,172 INFO L93 Difference]: Finished difference Result 10864 states and 11735 transitions. [2022-12-13 20:14:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:14:33,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 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 758 [2022-12-13 20:14:33,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:33,178 INFO L225 Difference]: With dead ends: 10864 [2022-12-13 20:14:33,178 INFO L226 Difference]: Without dead ends: 5700 [2022-12-13 20:14:33,181 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 [2022-12-13 20:14:33,181 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:33,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 227 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 20:14:33,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-12-13 20:14:33,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2022-12-13 20:14:33,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0701877522372345) internal successors, (6099), 5699 states have internal predecessors, (6099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:33,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 6099 transitions. [2022-12-13 20:14:33,225 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 6099 transitions. Word has length 758 [2022-12-13 20:14:33,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:33,225 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 6099 transitions. [2022-12-13 20:14:33,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:33,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 6099 transitions. [2022-12-13 20:14:33,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2022-12-13 20:14:33,230 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:33,230 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 3, 3, 3, 3, 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] [2022-12-13 20:14:33,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 20:14:33,230 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:33,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:33,231 INFO L85 PathProgramCache]: Analyzing trace with hash -540711606, now seen corresponding path program 1 times [2022-12-13 20:14:33,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:33,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393798748] [2022-12-13 20:14:33,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:33,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:34,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 1215 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2022-12-13 20:14:34,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:34,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393798748] [2022-12-13 20:14:34,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393798748] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:14:34,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568789688] [2022-12-13 20:14:34,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:34,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:34,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:14:34,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:14:34,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 20:14:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:34,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 20:14:34,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:14:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2231 backedges. 928 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2022-12-13 20:14:36,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:14:36,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568789688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:36,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:14:36,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-12-13 20:14:36,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485265272] [2022-12-13 20:14:36,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:36,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:14:36,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:36,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:14:36,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:14:36,642 INFO L87 Difference]: Start difference. First operand 5700 states and 6099 transitions. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:37,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:37,454 INFO L93 Difference]: Finished difference Result 12466 states and 13394 transitions. [2022-12-13 20:14:37,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:14:37,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 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 [2022-12-13 20:14:37,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:37,463 INFO L225 Difference]: With dead ends: 12466 [2022-12-13 20:14:37,463 INFO L226 Difference]: Without dead ends: 7124 [2022-12-13 20:14:37,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 806 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:14:37,467 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 206 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:37,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 60 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 20:14:37,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-12-13 20:14:37,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6768. [2022-12-13 20:14:37,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0704891384660855) internal successors, (7244), 6767 states have internal predecessors, (7244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:37,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7244 transitions. [2022-12-13 20:14:37,531 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7244 transitions. Word has length 808 [2022-12-13 20:14:37,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:37,531 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 7244 transitions. [2022-12-13 20:14:37,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:37,531 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7244 transitions. [2022-12-13 20:14:37,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2022-12-13 20:14:37,544 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:37,545 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:14:37,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 20:14:37,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:37,747 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:37,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:37,749 INFO L85 PathProgramCache]: Analyzing trace with hash -172725225, now seen corresponding path program 1 times [2022-12-13 20:14:37,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:37,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792410455] [2022-12-13 20:14:37,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:37,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:38,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 837 proven. 2 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2022-12-13 20:14:38,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:38,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792410455] [2022-12-13 20:14:38,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792410455] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:14:38,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137189666] [2022-12-13 20:14:38,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:38,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:38,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:14:38,994 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:14:38,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 20:14:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:39,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:14:39,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:14:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 839 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2022-12-13 20:14:39,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:14:39,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137189666] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:39,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:14:39,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-12-13 20:14:39,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079759298] [2022-12-13 20:14:39,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:39,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:14:39,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:39,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:14:39,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:14:39,272 INFO L87 Difference]: Start difference. First operand 6768 states and 7244 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:39,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:39,699 INFO L93 Difference]: Finished difference Result 13534 states and 14498 transitions. [2022-12-13 20:14:39,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:14:39,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 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 810 [2022-12-13 20:14:39,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:39,706 INFO L225 Difference]: With dead ends: 13534 [2022-12-13 20:14:39,706 INFO L226 Difference]: Without dead ends: 7124 [2022-12-13 20:14:39,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 819 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:14:39,710 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:39,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 245 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:14:39,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-12-13 20:14:39,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6590. [2022-12-13 20:14:39,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0628319927151313) internal successors, (7003), 6589 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:39,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 7003 transitions. [2022-12-13 20:14:39,774 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 7003 transitions. Word has length 810 [2022-12-13 20:14:39,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:39,774 INFO L495 AbstractCegarLoop]: Abstraction has 6590 states and 7003 transitions. [2022-12-13 20:14:39,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:39,775 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 7003 transitions. [2022-12-13 20:14:39,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2022-12-13 20:14:39,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:39,780 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:14:39,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 20:14:39,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 20:14:39,981 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:39,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:39,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2108387026, now seen corresponding path program 1 times [2022-12-13 20:14:39,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:39,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106482063] [2022-12-13 20:14:39,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:39,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:41,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2267 backedges. 1251 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2022-12-13 20:14:41,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:41,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106482063] [2022-12-13 20:14:41,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106482063] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:14:41,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962658454] [2022-12-13 20:14:41,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:41,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:41,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:14:41,334 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:14:41,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 20:14:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:41,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 20:14:41,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:14:42,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2267 backedges. 964 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2022-12-13 20:14:42,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:14:42,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962658454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:14:42,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:14:42,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-12-13 20:14:42,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906226156] [2022-12-13 20:14:42,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:42,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:14:42,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:42,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:14:42,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:14:42,019 INFO L87 Difference]: Start difference. First operand 6590 states and 7003 transitions. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:42,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:14:42,739 INFO L93 Difference]: Finished difference Result 13712 states and 14593 transitions. [2022-12-13 20:14:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:14:42,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 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 841 [2022-12-13 20:14:42,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:14:42,747 INFO L225 Difference]: With dead ends: 13712 [2022-12-13 20:14:42,748 INFO L226 Difference]: Without dead ends: 7480 [2022-12-13 20:14:42,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:14:42,751 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 174 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 20:14:42,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 59 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 20:14:42,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2022-12-13 20:14:42,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 6590. [2022-12-13 20:14:42,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0628319927151313) internal successors, (7003), 6589 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:42,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 7003 transitions. [2022-12-13 20:14:42,818 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 7003 transitions. Word has length 841 [2022-12-13 20:14:42,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:14:42,819 INFO L495 AbstractCegarLoop]: Abstraction has 6590 states and 7003 transitions. [2022-12-13 20:14:42,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:14:42,819 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 7003 transitions. [2022-12-13 20:14:42,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2022-12-13 20:14:42,824 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:14:42,824 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:14:42,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 20:14:43,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 20:14:43,025 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:14:43,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:14:43,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1692043947, now seen corresponding path program 1 times [2022-12-13 20:14:43,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:14:43,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520769100] [2022-12-13 20:14:43,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:43,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:14:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:44,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 1252 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2022-12-13 20:14:44,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:14:44,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520769100] [2022-12-13 20:14:44,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520769100] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:14:44,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045431052] [2022-12-13 20:14:44,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:14:44,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:14:44,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:14:44,540 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:14:44,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 20:14:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:14:44,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 20:14:44,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:14:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 1340 proven. 537 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-12-13 20:14:46,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:14:58,238 WARN L233 SmtUtils]: Spent 8.27s on a formula simplification. DAG size of input: 35 DAG size of output: 31 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:14:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2268 backedges. 1324 proven. 0 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2022-12-13 20:14:59,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045431052] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 20:14:59,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 20:14:59,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 13 [2022-12-13 20:14:59,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229069060] [2022-12-13 20:14:59,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:14:59,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:14:59,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:14:59,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:14:59,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=99, Unknown=1, NotChecked=0, Total=156 [2022-12-13 20:14:59,789 INFO L87 Difference]: Start difference. First operand 6590 states and 7003 transitions. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:00,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:00,498 INFO L93 Difference]: Finished difference Result 13356 states and 14227 transitions. [2022-12-13 20:15:00,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:15:00,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 0 states have call successors, (0), 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 842 [2022-12-13 20:15:00,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:00,505 INFO L225 Difference]: With dead ends: 13356 [2022-12-13 20:15:00,505 INFO L226 Difference]: Without dead ends: 7124 [2022-12-13 20:15:00,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1687 GetRequests, 1676 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=56, Invalid=99, Unknown=1, NotChecked=0, Total=156 [2022-12-13 20:15:00,509 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 222 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:00,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 10 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 20:15:00,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-12-13 20:15:00,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6234. [2022-12-13 20:15:00,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.062730627306273) internal successors, (6624), 6233 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:00,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6624 transitions. [2022-12-13 20:15:00,579 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6624 transitions. Word has length 842 [2022-12-13 20:15:00,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:00,579 INFO L495 AbstractCegarLoop]: Abstraction has 6234 states and 6624 transitions. [2022-12-13 20:15:00,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:00,579 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6624 transitions. [2022-12-13 20:15:00,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2022-12-13 20:15:00,585 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:00,585 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:15:00,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 20:15:00,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 20:15:00,786 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:00,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:00,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1454235833, now seen corresponding path program 1 times [2022-12-13 20:15:00,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:00,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639660906] [2022-12-13 20:15:00,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:00,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:01,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2382 backedges. 1388 proven. 0 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2022-12-13 20:15:01,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:01,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639660906] [2022-12-13 20:15:01,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639660906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:01,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:15:01,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:15:01,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760850231] [2022-12-13 20:15:01,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:01,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:15:01,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:01,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:15:01,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:15:01,400 INFO L87 Difference]: Start difference. First operand 6234 states and 6624 transitions. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:01,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:01,793 INFO L93 Difference]: Finished difference Result 12288 states and 13077 transitions. [2022-12-13 20:15:01,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:15:01,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 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 875 [2022-12-13 20:15:01,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:01,797 INFO L225 Difference]: With dead ends: 12288 [2022-12-13 20:15:01,797 INFO L226 Difference]: Without dead ends: 6412 [2022-12-13 20:15:01,800 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 [2022-12-13 20:15:01,800 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 24 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:01,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 226 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:15:01,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2022-12-13 20:15:01,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 6234. [2022-12-13 20:15:01,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.0580779720840687) internal successors, (6595), 6233 states have internal predecessors, (6595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:01,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6595 transitions. [2022-12-13 20:15:01,859 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6595 transitions. Word has length 875 [2022-12-13 20:15:01,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:01,860 INFO L495 AbstractCegarLoop]: Abstraction has 6234 states and 6595 transitions. [2022-12-13 20:15:01,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:01,860 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6595 transitions. [2022-12-13 20:15:01,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2022-12-13 20:15:01,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:01,865 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 4, 3, 3, 3, 3, 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] [2022-12-13 20:15:01,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 20:15:01,866 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:01,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:01,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1755066193, now seen corresponding path program 1 times [2022-12-13 20:15:01,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:01,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230326181] [2022-12-13 20:15:01,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:01,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2884 backedges. 1002 proven. 0 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2022-12-13 20:15:02,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:02,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230326181] [2022-12-13 20:15:02,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230326181] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:02,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:15:02,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 20:15:02,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361403699] [2022-12-13 20:15:02,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:02,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:15:02,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:02,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:15:02,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:15:02,503 INFO L87 Difference]: Start difference. First operand 6234 states and 6595 transitions. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:03,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:03,131 INFO L93 Difference]: Finished difference Result 12082 states and 12789 transitions. [2022-12-13 20:15:03,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:15:03,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 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 899 [2022-12-13 20:15:03,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:03,135 INFO L225 Difference]: With dead ends: 12082 [2022-12-13 20:15:03,135 INFO L226 Difference]: Without dead ends: 6156 [2022-12-13 20:15:03,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:15:03,139 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 53 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:03,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 33 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 20:15:03,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6156 states. [2022-12-13 20:15:03,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6156 to 6106. [2022-12-13 20:15:03,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6105 states have (on average 1.0496314496314496) internal successors, (6408), 6105 states have internal predecessors, (6408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:03,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 6408 transitions. [2022-12-13 20:15:03,198 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 6408 transitions. Word has length 899 [2022-12-13 20:15:03,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:03,199 INFO L495 AbstractCegarLoop]: Abstraction has 6106 states and 6408 transitions. [2022-12-13 20:15:03,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:03,199 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 6408 transitions. [2022-12-13 20:15:03,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 950 [2022-12-13 20:15:03,205 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:03,205 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:15:03,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 20:15:03,205 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:03,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:03,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1130662458, now seen corresponding path program 1 times [2022-12-13 20:15:03,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:03,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166898685] [2022-12-13 20:15:03,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:03,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 573 proven. 390 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2022-12-13 20:15:04,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:04,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166898685] [2022-12-13 20:15:04,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166898685] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:15:04,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341015015] [2022-12-13 20:15:04,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:04,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:15:04,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:15:04,142 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:15:04,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 20:15:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:04,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:15:04,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:15:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 2296 trivial. 0 not checked. [2022-12-13 20:15:04,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:15:04,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341015015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:04,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:15:04,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-12-13 20:15:04,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196037433] [2022-12-13 20:15:04,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:04,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:15:04,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:04,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:15:04,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:15:04,480 INFO L87 Difference]: Start difference. First operand 6106 states and 6408 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:04,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:04,887 INFO L93 Difference]: Finished difference Result 7176 states and 7498 transitions. [2022-12-13 20:15:04,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:15:04,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 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 949 [2022-12-13 20:15:04,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:04,893 INFO L225 Difference]: With dead ends: 7176 [2022-12-13 20:15:04,893 INFO L226 Difference]: Without dead ends: 7174 [2022-12-13 20:15:04,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 953 GetRequests, 948 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:15:04,895 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 150 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:04,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 11 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:15:04,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7174 states. [2022-12-13 20:15:04,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7174 to 5928. [2022-12-13 20:15:04,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5927 states have (on average 1.0507845453011642) internal successors, (6228), 5927 states have internal predecessors, (6228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:04,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 6228 transitions. [2022-12-13 20:15:04,950 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 6228 transitions. Word has length 949 [2022-12-13 20:15:04,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:04,950 INFO L495 AbstractCegarLoop]: Abstraction has 5928 states and 6228 transitions. [2022-12-13 20:15:04,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 6228 transitions. [2022-12-13 20:15:04,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2022-12-13 20:15:04,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:04,957 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:15:04,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 20:15:05,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-12-13 20:15:05,159 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:05,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:05,160 INFO L85 PathProgramCache]: Analyzing trace with hash 360428800, now seen corresponding path program 1 times [2022-12-13 20:15:05,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:05,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6714415] [2022-12-13 20:15:05,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:05,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2750 backedges. 999 proven. 0 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2022-12-13 20:15:06,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:06,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6714415] [2022-12-13 20:15:06,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6714415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:06,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:15:06,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:15:06,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120899873] [2022-12-13 20:15:06,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:06,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:15:06,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:06,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:15:06,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:15:06,446 INFO L87 Difference]: Start difference. First operand 5928 states and 6228 transitions. Second operand has 5 states, 5 states have (on average 67.4) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:07,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:07,228 INFO L93 Difference]: Finished difference Result 7810 states and 8269 transitions. [2022-12-13 20:15:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:15:07,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 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 968 [2022-12-13 20:15:07,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:07,234 INFO L225 Difference]: With dead ends: 7810 [2022-12-13 20:15:07,235 INFO L226 Difference]: Without dead ends: 7758 [2022-12-13 20:15:07,236 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 [2022-12-13 20:15:07,236 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 174 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:07,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 20 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 20:15:07,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7758 states. [2022-12-13 20:15:07,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7758 to 7352. [2022-12-13 20:15:07,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7352 states, 7351 states have (on average 1.0608080533260782) internal successors, (7798), 7351 states have internal predecessors, (7798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:07,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7352 states to 7352 states and 7798 transitions. [2022-12-13 20:15:07,307 INFO L78 Accepts]: Start accepts. Automaton has 7352 states and 7798 transitions. Word has length 968 [2022-12-13 20:15:07,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:07,308 INFO L495 AbstractCegarLoop]: Abstraction has 7352 states and 7798 transitions. [2022-12-13 20:15:07,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:07,308 INFO L276 IsEmpty]: Start isEmpty. Operand 7352 states and 7798 transitions. [2022-12-13 20:15:07,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1002 [2022-12-13 20:15:07,315 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:07,315 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-13 20:15:07,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 20:15:07,315 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:07,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:07,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1652977608, now seen corresponding path program 1 times [2022-12-13 20:15:07,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:07,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978003588] [2022-12-13 20:15:07,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:07,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:08,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 762 proven. 339 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2022-12-13 20:15:08,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:08,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978003588] [2022-12-13 20:15:08,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978003588] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:15:08,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471135292] [2022-12-13 20:15:08,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:08,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:15:08,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:15:08,038 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:15:08,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 20:15:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:08,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 1223 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:15:08,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:15:08,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1101 proven. 0 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2022-12-13 20:15:08,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:15:08,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471135292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:08,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:15:08,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-12-13 20:15:08,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775630598] [2022-12-13 20:15:08,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:08,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:15:08,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:08,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:15:08,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:15:08,389 INFO L87 Difference]: Start difference. First operand 7352 states and 7798 transitions. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:08,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:08,787 INFO L93 Difference]: Finished difference Result 14524 states and 15415 transitions. [2022-12-13 20:15:08,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:15:08,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 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 1001 [2022-12-13 20:15:08,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:08,800 INFO L225 Difference]: With dead ends: 14524 [2022-12-13 20:15:08,800 INFO L226 Difference]: Without dead ends: 7352 [2022-12-13 20:15:08,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1004 GetRequests, 1000 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:15:08,803 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 36 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:08,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 232 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 20:15:08,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2022-12-13 20:15:08,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 6818. [2022-12-13 20:15:08,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6818 states, 6817 states have (on average 1.047968314507848) internal successors, (7144), 6817 states have internal predecessors, (7144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 7144 transitions. [2022-12-13 20:15:08,867 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 7144 transitions. Word has length 1001 [2022-12-13 20:15:08,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:08,868 INFO L495 AbstractCegarLoop]: Abstraction has 6818 states and 7144 transitions. [2022-12-13 20:15:08,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:08,868 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 7144 transitions. [2022-12-13 20:15:08,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2022-12-13 20:15:08,875 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:08,875 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:15:08,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 20:15:09,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-13 20:15:09,077 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:09,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:09,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1433860886, now seen corresponding path program 1 times [2022-12-13 20:15:09,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:09,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319781626] [2022-12-13 20:15:09,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:09,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3281 backedges. 1077 proven. 390 refuted. 0 times theorem prover too weak. 1814 trivial. 0 not checked. [2022-12-13 20:15:10,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:10,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319781626] [2022-12-13 20:15:10,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319781626] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:15:10,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119388180] [2022-12-13 20:15:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:10,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:15:10,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:15:10,154 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:15:10,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 20:15:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:10,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:15:10,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:15:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3281 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 2882 trivial. 0 not checked. [2022-12-13 20:15:10,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:15:10,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119388180] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:10,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:15:10,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-12-13 20:15:10,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628026719] [2022-12-13 20:15:10,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:10,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:15:10,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:10,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:15:10,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:15:10,397 INFO L87 Difference]: Start difference. First operand 6818 states and 7144 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:10,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:10,784 INFO L93 Difference]: Finished difference Result 7710 states and 8052 transitions. [2022-12-13 20:15:10,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:15:10,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 1036 [2022-12-13 20:15:10,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:10,790 INFO L225 Difference]: With dead ends: 7710 [2022-12-13 20:15:10,790 INFO L226 Difference]: Without dead ends: 7708 [2022-12-13 20:15:10,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 1035 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:15:10,792 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 150 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:10,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 11 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 20:15:10,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7708 states. [2022-12-13 20:15:10,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7708 to 6640. [2022-12-13 20:15:10,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6640 states, 6639 states have (on average 1.0486519054074408) internal successors, (6962), 6639 states have internal predecessors, (6962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:10,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6640 states to 6640 states and 6962 transitions. [2022-12-13 20:15:10,872 INFO L78 Accepts]: Start accepts. Automaton has 6640 states and 6962 transitions. Word has length 1036 [2022-12-13 20:15:10,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:10,872 INFO L495 AbstractCegarLoop]: Abstraction has 6640 states and 6962 transitions. [2022-12-13 20:15:10,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:10,872 INFO L276 IsEmpty]: Start isEmpty. Operand 6640 states and 6962 transitions. [2022-12-13 20:15:10,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2022-12-13 20:15:10,880 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:10,880 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:15:10,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 20:15:11,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:15:11,082 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:11,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:11,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1021024288, now seen corresponding path program 1 times [2022-12-13 20:15:11,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:11,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833964219] [2022-12-13 20:15:11,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:11,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:12,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3484 backedges. 1280 proven. 390 refuted. 0 times theorem prover too weak. 1814 trivial. 0 not checked. [2022-12-13 20:15:12,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:12,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833964219] [2022-12-13 20:15:12,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833964219] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:15:12,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214108239] [2022-12-13 20:15:12,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:12,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:15:12,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:15:12,226 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:15:12,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 20:15:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:12,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1310 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:15:12,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:15:13,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3484 backedges. 1041 proven. 0 refuted. 0 times theorem prover too weak. 2443 trivial. 0 not checked. [2022-12-13 20:15:13,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:15:13,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214108239] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:13,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:15:13,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-12-13 20:15:13,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992683685] [2022-12-13 20:15:13,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:13,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:15:13,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:13,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:15:13,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:15:13,202 INFO L87 Difference]: Start difference. First operand 6640 states and 6962 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:13,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:13,573 INFO L93 Difference]: Finished difference Result 14880 states and 15564 transitions. [2022-12-13 20:15:13,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:15:13,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 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 1065 [2022-12-13 20:15:13,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:13,578 INFO L225 Difference]: With dead ends: 14880 [2022-12-13 20:15:13,578 INFO L226 Difference]: Without dead ends: 8420 [2022-12-13 20:15:13,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1069 GetRequests, 1064 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:15:13,581 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:13,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 52 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 20:15:13,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8420 states. [2022-12-13 20:15:13,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8420 to 6996. [2022-12-13 20:15:13,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6996 states, 6995 states have (on average 1.0470335954253038) internal successors, (7324), 6995 states have internal predecessors, (7324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6996 states to 6996 states and 7324 transitions. [2022-12-13 20:15:13,655 INFO L78 Accepts]: Start accepts. Automaton has 6996 states and 7324 transitions. Word has length 1065 [2022-12-13 20:15:13,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:13,655 INFO L495 AbstractCegarLoop]: Abstraction has 6996 states and 7324 transitions. [2022-12-13 20:15:13,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:13,656 INFO L276 IsEmpty]: Start isEmpty. Operand 6996 states and 7324 transitions. [2022-12-13 20:15:13,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1195 [2022-12-13 20:15:13,665 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:13,665 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:15:13,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 20:15:13,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:15:13,867 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:13,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:13,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1602313078, now seen corresponding path program 1 times [2022-12-13 20:15:13,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:13,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15242140] [2022-12-13 20:15:13,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:13,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 4779 backedges. 2081 proven. 0 refuted. 0 times theorem prover too weak. 2698 trivial. 0 not checked. [2022-12-13 20:15:14,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:14,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15242140] [2022-12-13 20:15:14,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15242140] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:14,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:15:14,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:15:14,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657279334] [2022-12-13 20:15:14,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:14,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:15:14,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:14,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:15:14,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:15:14,704 INFO L87 Difference]: Start difference. First operand 6996 states and 7324 transitions. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:15,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:15,079 INFO L93 Difference]: Finished difference Result 13990 states and 14646 transitions. [2022-12-13 20:15:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:15:15,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 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 1194 [2022-12-13 20:15:15,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:15,087 INFO L225 Difference]: With dead ends: 13990 [2022-12-13 20:15:15,087 INFO L226 Difference]: Without dead ends: 7174 [2022-12-13 20:15:15,090 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 [2022-12-13 20:15:15,090 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 71 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:15,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 239 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 20:15:15,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7174 states. [2022-12-13 20:15:15,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7174 to 6818. [2022-12-13 20:15:15,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6818 states, 6817 states have (on average 1.0469414698547748) internal successors, (7137), 6817 states have internal predecessors, (7137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 7137 transitions. [2022-12-13 20:15:15,156 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 7137 transitions. Word has length 1194 [2022-12-13 20:15:15,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:15,156 INFO L495 AbstractCegarLoop]: Abstraction has 6818 states and 7137 transitions. [2022-12-13 20:15:15,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:15,157 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 7137 transitions. [2022-12-13 20:15:15,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1401 [2022-12-13 20:15:15,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:15,169 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:15:15,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 20:15:15,169 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:15,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:15,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1320783353, now seen corresponding path program 1 times [2022-12-13 20:15:15,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:15,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798640748] [2022-12-13 20:15:15,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:15,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:16,204 INFO L134 CoverageAnalysis]: Checked inductivity of 6065 backedges. 1489 proven. 0 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2022-12-13 20:15:16,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:16,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798640748] [2022-12-13 20:15:16,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798640748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:16,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:15:16,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:15:16,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069593565] [2022-12-13 20:15:16,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:16,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:15:16,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:16,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:15:16,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:15:16,207 INFO L87 Difference]: Start difference. First operand 6818 states and 7137 transitions. Second operand has 5 states, 5 states have (on average 67.8) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:16,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:16,885 INFO L93 Difference]: Finished difference Result 13480 states and 14117 transitions. [2022-12-13 20:15:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:15:16,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 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 1400 [2022-12-13 20:15:16,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:16,890 INFO L225 Difference]: With dead ends: 13480 [2022-12-13 20:15:16,890 INFO L226 Difference]: Without dead ends: 6818 [2022-12-13 20:15:16,893 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 [2022-12-13 20:15:16,893 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 103 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:16,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 23 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 20:15:16,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6818 states. [2022-12-13 20:15:16,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6818 to 6818. [2022-12-13 20:15:16,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6818 states, 6817 states have (on average 1.0454745489218131) internal successors, (7127), 6817 states have internal predecessors, (7127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:16,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 7127 transitions. [2022-12-13 20:15:16,955 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 7127 transitions. Word has length 1400 [2022-12-13 20:15:16,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:16,955 INFO L495 AbstractCegarLoop]: Abstraction has 6818 states and 7127 transitions. [2022-12-13 20:15:16,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:16,956 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 7127 transitions. [2022-12-13 20:15:16,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1519 [2022-12-13 20:15:16,969 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:16,970 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 6, 6, 6, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:15:16,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 20:15:16,970 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:16,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:16,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1702784966, now seen corresponding path program 1 times [2022-12-13 20:15:16,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:16,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885633862] [2022-12-13 20:15:16,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:16,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:17,894 INFO L134 CoverageAnalysis]: Checked inductivity of 7302 backedges. 906 proven. 819 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2022-12-13 20:15:17,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:17,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885633862] [2022-12-13 20:15:17,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885633862] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:15:17,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657867403] [2022-12-13 20:15:17,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:17,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:15:17,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:15:17,896 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:15:17,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 20:15:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:18,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:15:18,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:15:18,328 INFO L134 CoverageAnalysis]: Checked inductivity of 7302 backedges. 1725 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2022-12-13 20:15:18,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:15:18,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657867403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:18,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:15:18,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-12-13 20:15:18,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289661529] [2022-12-13 20:15:18,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:18,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:15:18,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:18,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:15:18,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:15:18,330 INFO L87 Difference]: Start difference. First operand 6818 states and 7127 transitions. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:18,669 INFO L93 Difference]: Finished difference Result 14702 states and 15332 transitions. [2022-12-13 20:15:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:15:18,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 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 1518 [2022-12-13 20:15:18,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:18,674 INFO L225 Difference]: With dead ends: 14702 [2022-12-13 20:15:18,674 INFO L226 Difference]: Without dead ends: 5394 [2022-12-13 20:15:18,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1521 GetRequests, 1517 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:15:18,677 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:18,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 233 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 20:15:18,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5394 states. [2022-12-13 20:15:18,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5394 to 4860. [2022-12-13 20:15:18,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4860 states, 4859 states have (on average 1.0310763531590863) internal successors, (5010), 4859 states have internal predecessors, (5010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:18,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4860 states to 4860 states and 5010 transitions. [2022-12-13 20:15:18,720 INFO L78 Accepts]: Start accepts. Automaton has 4860 states and 5010 transitions. Word has length 1518 [2022-12-13 20:15:18,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:18,721 INFO L495 AbstractCegarLoop]: Abstraction has 4860 states and 5010 transitions. [2022-12-13 20:15:18,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:18,721 INFO L276 IsEmpty]: Start isEmpty. Operand 4860 states and 5010 transitions. [2022-12-13 20:15:18,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1762 [2022-12-13 20:15:18,767 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:18,767 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 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, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:15:18,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 20:15:18,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-13 20:15:18,969 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:18,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2098800823, now seen corresponding path program 1 times [2022-12-13 20:15:18,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:18,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178455809] [2022-12-13 20:15:18,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:18,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 10019 backedges. 3218 proven. 0 refuted. 0 times theorem prover too weak. 6801 trivial. 0 not checked. [2022-12-13 20:15:20,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:20,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178455809] [2022-12-13 20:15:20,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178455809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:20,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:15:20,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:15:20,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266299017] [2022-12-13 20:15:20,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:20,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:15:20,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:20,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:15:20,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:15:20,411 INFO L87 Difference]: Start difference. First operand 4860 states and 5010 transitions. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:20,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:20,784 INFO L93 Difference]: Finished difference Result 9562 states and 9863 transitions. [2022-12-13 20:15:20,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:15:20,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 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 1761 [2022-12-13 20:15:20,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:20,789 INFO L225 Difference]: With dead ends: 9562 [2022-12-13 20:15:20,789 INFO L226 Difference]: Without dead ends: 5038 [2022-12-13 20:15:20,791 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 [2022-12-13 20:15:20,791 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 19 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:20,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 17 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 20:15:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5038 states. [2022-12-13 20:15:20,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5038 to 4860. [2022-12-13 20:15:20,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4860 states, 4859 states have (on average 1.0296357275159498) internal successors, (5003), 4859 states have internal predecessors, (5003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:20,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4860 states to 4860 states and 5003 transitions. [2022-12-13 20:15:20,835 INFO L78 Accepts]: Start accepts. Automaton has 4860 states and 5003 transitions. Word has length 1761 [2022-12-13 20:15:20,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:20,836 INFO L495 AbstractCegarLoop]: Abstraction has 4860 states and 5003 transitions. [2022-12-13 20:15:20,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 4860 states and 5003 transitions. [2022-12-13 20:15:20,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1840 [2022-12-13 20:15:20,855 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:15:20,856 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:15:20,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 20:15:20,856 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:15:20,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:15:20,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1181327325, now seen corresponding path program 1 times [2022-12-13 20:15:20,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:15:20,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078106196] [2022-12-13 20:15:20,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:15:20,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:15:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:15:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 11219 backedges. 6341 proven. 0 refuted. 0 times theorem prover too weak. 4878 trivial. 0 not checked. [2022-12-13 20:15:21,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:15:21,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078106196] [2022-12-13 20:15:21,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078106196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:15:21,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:15:21,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:15:21,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534228674] [2022-12-13 20:15:21,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:15:21,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:15:21,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:15:21,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:15:21,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:15:21,858 INFO L87 Difference]: Start difference. First operand 4860 states and 5003 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:22,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:15:22,153 INFO L93 Difference]: Finished difference Result 8954 states and 9214 transitions. [2022-12-13 20:15:22,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:15:22,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1839 [2022-12-13 20:15:22,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:15:22,155 INFO L225 Difference]: With dead ends: 8954 [2022-12-13 20:15:22,155 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 20:15:22,157 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 [2022-12-13 20:15:22,158 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:15:22,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 201 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 20:15:22,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 20:15:22,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 20:15:22,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:22,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 20:15:22,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1839 [2022-12-13 20:15:22,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:15:22,159 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 20:15:22,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:15:22,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 20:15:22,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 20:15:22,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 20:15:22,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 20:15:22,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 20:15:31,833 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2022-12-13 20:15:31,833 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,834 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-12-13 20:15:31,835 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2022-12-13 20:15:31,836 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-12-13 20:15:31,837 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2022-12-13 20:15:31,838 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,839 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 20:15:31,840 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 170) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2022-12-13 20:15:31,841 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2022-12-13 20:15:31,842 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2022-12-13 20:15:31,843 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-12-13 20:15:31,844 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2022-12-13 20:15:31,845 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L902 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2022-12-13 20:15:31,846 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,847 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2022-12-13 20:15:31,848 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse23 (div (* ~a12~0 9) 10))) (let ((.cse22 (div (+ (- 562768) .cse23) 5)) (.cse24 (+ ~a12~0 43))) (let ((.cse8 (<= 9 ~a21~0)) (.cse11 (<= ~a21~0 9)) (.cse7 (<= .cse24 0)) (.cse5 (<= ~a15~0 7)) (.cse10 (<= 6 ~a15~0)) (.cse2 (<= ~a15~0 8)) (.cse15 (<= ~a21~0 6)) (.cse16 (< 0 .cse24)) (.cse1 (<= 7 ~a21~0)) (.cse3 (<= ~a21~0 7)) (.cse13 (<= 9 ~a15~0)) (.cse19 (<= ~a12~0 225871)) (.cse17 (<= ~a12~0 73282)) (.cse6 (<= 8 ~a21~0)) (.cse20 (<= ~a21~0 8)) (.cse4 (<= 0 (+ ~a12~0 42))) (.cse21 (= ~a15~0 8)) (.cse14 (<= 7 ~a15~0)) (.cse9 (or (= (mod (+ 2 .cse23) 5) 0) (< (+ .cse22 43) 0))) (.cse0 (= ~a24~0 1)) (.cse12 (< (+ .cse22 42) 0)) (.cse18 (<= 10 ~a21~0))) (or (and (<= ~a12~0 11) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (<= ~a12~0 76) .cse5 .cse3 .cse4) (and .cse0 .cse6 (not .cse7) (not (< 80 ~a12~0))) (and .cse8 .cse9 .cse10 .cse11 .cse0 .cse5 .cse12) (and .cse9 .cse0 .cse1 .cse13 .cse12 .cse4) (and .cse9 .cse0 (= 5 ~a15~0) (= ~a21~0 6) .cse12 (<= 526013 ~a12~0)) (and .cse14 .cse9 .cse0 .cse2 .cse15 .cse12 .cse16) (and .cse8 .cse11 .cse7 .cse0 .cse2) (and .cse17 .cse0 .cse18 .cse4) (and .cse14 .cse9 .cse0 .cse5 .cse12) (and .cse7 .cse2 .cse15 .cse5) (and .cse10 .cse0 .cse2 .cse15 .cse16 .cse19) (and .cse0 .cse13 (exists ((v_~a12~0_439 Int)) (and (<= (+ 558346 ~a12~0) (div (* 9 v_~a12~0_439) 10)) (<= v_~a12~0_439 73282) (< 80 v_~a12~0_439))) .cse6 .cse20) (and .cse0 .cse1 .cse3 (<= (+ 49 ~a12~0) 0) .cse21) (and .cse0 .cse13 .cse4 .cse19) (and .cse17 .cse0 .cse6 .cse20 .cse4 .cse21) (and .cse14 .cse9 .cse0 .cse12 .cse18))))) [2022-12-13 20:15:31,848 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2022-12-13 20:15:31,848 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2022-12-13 20:15:31,848 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-12-13 20:15:31,848 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-12-13 20:15:31,848 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-12-13 20:15:31,849 INFO L895 garLoopResultBuilder]: At program point calculate_output_returnLabel#1(lines 30 882) the Hoare annotation is: (let ((.cse23 (div (* ~a12~0 9) 10))) (let ((.cse22 (div (+ (- 562768) .cse23) 5)) (.cse24 (+ ~a12~0 43))) (let ((.cse8 (<= 9 ~a21~0)) (.cse11 (<= ~a21~0 9)) (.cse7 (<= .cse24 0)) (.cse5 (<= ~a15~0 7)) (.cse10 (<= 6 ~a15~0)) (.cse2 (<= ~a15~0 8)) (.cse15 (<= ~a21~0 6)) (.cse16 (< 0 .cse24)) (.cse1 (<= 7 ~a21~0)) (.cse3 (<= ~a21~0 7)) (.cse13 (<= 9 ~a15~0)) (.cse19 (<= ~a12~0 225871)) (.cse17 (<= ~a12~0 73282)) (.cse6 (<= 8 ~a21~0)) (.cse20 (<= ~a21~0 8)) (.cse4 (<= 0 (+ ~a12~0 42))) (.cse21 (= ~a15~0 8)) (.cse14 (<= 7 ~a15~0)) (.cse9 (or (= (mod (+ 2 .cse23) 5) 0) (< (+ .cse22 43) 0))) (.cse0 (= ~a24~0 1)) (.cse12 (< (+ .cse22 42) 0)) (.cse18 (<= 10 ~a21~0))) (or (and (<= ~a12~0 11) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (<= ~a12~0 76) .cse5 .cse3 .cse4) (and .cse0 .cse6 (not .cse7) (not (< 80 ~a12~0))) (and .cse8 .cse9 .cse10 .cse11 .cse0 .cse5 .cse12) (and .cse9 .cse0 .cse1 .cse13 .cse12 .cse4) (and .cse9 .cse0 (= 5 ~a15~0) (= ~a21~0 6) .cse12 (<= 526013 ~a12~0)) (and .cse14 .cse9 .cse0 .cse2 .cse15 .cse12 .cse16) (and .cse8 .cse11 .cse7 .cse0 .cse2) (and .cse17 .cse0 .cse18 .cse4) (and .cse14 .cse9 .cse0 .cse5 .cse12) (and .cse7 .cse2 .cse15 .cse5) (and .cse10 .cse0 .cse2 .cse15 .cse16 .cse19) (and .cse0 .cse13 (exists ((v_~a12~0_439 Int)) (and (<= (+ 558346 ~a12~0) (div (* 9 v_~a12~0_439) 10)) (<= v_~a12~0_439 73282) (< 80 v_~a12~0_439))) .cse6 .cse20) (and .cse0 .cse1 .cse3 (<= (+ 49 ~a12~0) 0) .cse21) (and .cse0 .cse13 .cse4 .cse19) (and .cse17 .cse0 .cse6 .cse20 .cse4 .cse21) (and .cse14 .cse9 .cse0 .cse12 .cse18))))) [2022-12-13 20:15:31,849 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2022-12-13 20:15:31,849 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2022-12-13 20:15:31,849 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2022-12-13 20:15:31,849 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2022-12-13 20:15:31,849 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,849 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,849 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 20:15:31,849 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2022-12-13 20:15:31,849 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-12-13 20:15:31,849 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-12-13 20:15:31,849 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-12-13 20:15:31,852 INFO L445 BasicCegarLoop]: Path program 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] [2022-12-13 20:15:31,853 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:15:31,859 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,859 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,860 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,866 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,866 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,866 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,868 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,868 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,868 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,870 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,870 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,870 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:15:31 BoogieIcfgContainer [2022-12-13 20:15:31,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:15:31,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:15:31,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:15:31,872 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:15:31,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:14:17" (3/4) ... [2022-12-13 20:15:31,875 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 20:15:31,886 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-13 20:15:31,887 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 20:15:31,887 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 20:15:31,888 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 20:15:31,905 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) && 0 <= a12 + 42) || ((((((a24 == 1 && 7 <= a21) && a15 <= 8) && a12 <= 76) && a15 <= 7) && a21 <= 7) && 0 <= a12 + 42)) || (((a24 == 1 && 8 <= a21) && !(a12 + 43 <= 0)) && !(80 < a12))) || ((((((9 <= a21 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && 6 <= a15) && a21 <= 9) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 7 <= a21) && 9 <= a15) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 <= a12 + 42)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 5 == a15) && a21 == 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 526013 <= a12)) || ((((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 8) && a21 <= 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 < a12 + 43)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a12 <= 73282 && a24 == 1) && 10 <= a21) && 0 <= a12 + 42)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a15 <= 7)) || (((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && a12 <= 225871)) || ((((a24 == 1 && 9 <= a15) && (\exists v_~a12~0_439 : int :: (558346 + a12 <= 9 * v_~a12~0_439 / 10 && v_~a12~0_439 <= 73282) && 80 < v_~a12~0_439)) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a24 == 1 && 9 <= a15) && 0 <= a12 + 42) && a12 <= 225871)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 10 <= a21) [2022-12-13 20:15:31,906 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) && 0 <= a12 + 42) || ((((((a24 == 1 && 7 <= a21) && a15 <= 8) && a12 <= 76) && a15 <= 7) && a21 <= 7) && 0 <= a12 + 42)) || (((a24 == 1 && 8 <= a21) && !(a12 + 43 <= 0)) && !(80 < a12))) || ((((((9 <= a21 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && 6 <= a15) && a21 <= 9) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 7 <= a21) && 9 <= a15) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 <= a12 + 42)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 5 == a15) && a21 == 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 526013 <= a12)) || ((((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 8) && a21 <= 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 < a12 + 43)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a12 <= 73282 && a24 == 1) && 10 <= a21) && 0 <= a12 + 42)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a15 <= 7)) || (((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && a12 <= 225871)) || ((((a24 == 1 && 9 <= a15) && (\exists v_~a12~0_439 : int :: (558346 + a12 <= 9 * v_~a12~0_439 / 10 && v_~a12~0_439 <= 73282) && 80 < v_~a12~0_439)) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a24 == 1 && 9 <= a15) && 0 <= a12 + 42) && a12 <= 225871)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 10 <= a21) [2022-12-13 20:15:31,946 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:15:31,946 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:15:31,947 INFO L158 Benchmark]: Toolchain (without parser) took 76184.29ms. Allocated memory was 148.9MB in the beginning and 903.9MB in the end (delta: 755.0MB). Free memory was 111.7MB in the beginning and 438.3MB in the end (delta: -326.6MB). Peak memory consumption was 429.5MB. Max. memory is 16.1GB. [2022-12-13 20:15:31,947 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 148.9MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:15:31,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.66ms. Allocated memory is still 148.9MB. Free memory was 111.1MB in the beginning and 78.1MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 20:15:31,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.76ms. Allocated memory is still 148.9MB. Free memory was 78.1MB in the beginning and 68.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 20:15:31,947 INFO L158 Benchmark]: Boogie Preprocessor took 77.90ms. Allocated memory is still 148.9MB. Free memory was 68.2MB in the beginning and 112.3MB in the end (delta: -44.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-12-13 20:15:31,947 INFO L158 Benchmark]: RCFGBuilder took 1048.68ms. Allocated memory was 148.9MB in the beginning and 207.6MB in the end (delta: 58.7MB). Free memory was 111.6MB in the beginning and 128.0MB in the end (delta: -16.4MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2022-12-13 20:15:31,947 INFO L158 Benchmark]: TraceAbstraction took 74423.00ms. Allocated memory was 207.6MB in the beginning and 903.9MB in the end (delta: 696.3MB). Free memory was 126.9MB in the beginning and 450.8MB in the end (delta: -323.9MB). Peak memory consumption was 608.7MB. Max. memory is 16.1GB. [2022-12-13 20:15:31,948 INFO L158 Benchmark]: Witness Printer took 74.14ms. Allocated memory is still 903.9MB. Free memory was 450.8MB in the beginning and 438.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:15:31,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 148.9MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.66ms. Allocated memory is still 148.9MB. Free memory was 111.1MB in the beginning and 78.1MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.76ms. Allocated memory is still 148.9MB. Free memory was 78.1MB in the beginning and 68.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.90ms. Allocated memory is still 148.9MB. Free memory was 68.2MB in the beginning and 112.3MB in the end (delta: -44.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * RCFGBuilder took 1048.68ms. Allocated memory was 148.9MB in the beginning and 207.6MB in the end (delta: 58.7MB). Free memory was 111.6MB in the beginning and 128.0MB in the end (delta: -16.4MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * TraceAbstraction took 74423.00ms. Allocated memory was 207.6MB in the beginning and 903.9MB in the end (delta: 696.3MB). Free memory was 126.9MB in the beginning and 450.8MB in the end (delta: -323.9MB). Peak memory consumption was 608.7MB. Max. memory is 16.1GB. * Witness Printer took 74.14ms. Allocated memory is still 903.9MB. Free memory was 450.8MB in the beginning and 438.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 170]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.4s, OverallIterations: 30, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3297 SdHoareTripleChecker+Valid, 14.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3297 mSDsluCounter, 3106 SdHoareTripleChecker+Invalid, 11.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 195 mSDsCounter, 1676 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17436 IncrementalHoareTripleChecker+Invalid, 19112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1676 mSolverCounterUnsat, 2911 mSDtfsCounter, 17436 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12871 GetRequests, 12773 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 12.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7352occurred in iteration=22, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 30 MinimizatonAttempts, 11670 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 98 NumberOfFragments, 1053 HoareAnnotationTreeSize, 3 FomulaSimplifications, 37774 FormulaSimplificationTreeSizeReduction, 4.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 92128 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 39.2s InterpolantComputationTime, 35270 NumberOfCodeBlocks, 35270 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 36707 ConstructedInterpolants, 222 QuantifiedInterpolants, 131829 SizeOfPredicates, 3 NumberOfNonLiveVariables, 14148 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 46 InterpolantComputations, 29 PerfectInterpolantSequences, 111704/115554 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant [2022-12-13 20:15:31,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,954 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,956 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,956 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,956 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] Derived loop invariant: ((((((((((((((((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) && 0 <= a12 + 42) || ((((((a24 == 1 && 7 <= a21) && a15 <= 8) && a12 <= 76) && a15 <= 7) && a21 <= 7) && 0 <= a12 + 42)) || (((a24 == 1 && 8 <= a21) && !(a12 + 43 <= 0)) && !(80 < a12))) || ((((((9 <= a21 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && 6 <= a15) && a21 <= 9) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 7 <= a21) && 9 <= a15) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 <= a12 + 42)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 5 == a15) && a21 == 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 526013 <= a12)) || ((((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 8) && a21 <= 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 < a12 + 43)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a12 <= 73282 && a24 == 1) && 10 <= a21) && 0 <= a12 + 42)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a15 <= 7)) || (((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && a12 <= 225871)) || ((((a24 == 1 && 9 <= a15) && (\exists v_~a12~0_439 : int :: (558346 + a12 <= 9 * v_~a12~0_439 / 10 && v_~a12~0_439 <= 73282) && 80 < v_~a12~0_439)) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a24 == 1 && 9 <= a15) && 0 <= a12 + 42) && a12 <= 225871)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 10 <= a21) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant [2022-12-13 20:15:31,958 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,958 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,958 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,960 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,960 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] [2022-12-13 20:15:31,960 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_439,QUANTIFIED] Derived loop invariant: ((((((((((((((((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) && 0 <= a12 + 42) || ((((((a24 == 1 && 7 <= a21) && a15 <= 8) && a12 <= 76) && a15 <= 7) && a21 <= 7) && 0 <= a12 + 42)) || (((a24 == 1 && 8 <= a21) && !(a12 + 43 <= 0)) && !(80 < a12))) || ((((((9 <= a21 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && 6 <= a15) && a21 <= 9) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 7 <= a21) && 9 <= a15) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 <= a12 + 42)) || (((((((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0) && a24 == 1) && 5 == a15) && a21 == 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 526013 <= a12)) || ((((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 8) && a21 <= 6) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 0 < a12 + 43)) || ((((9 <= a21 && a21 <= 9) && a12 + 43 <= 0) && a24 == 1) && a15 <= 8)) || (((a12 <= 73282 && a24 == 1) && 10 <= a21) && 0 <= a12 + 42)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && a15 <= 7) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0)) || (((a12 + 43 <= 0 && a15 <= 8) && a21 <= 6) && a15 <= 7)) || (((((6 <= a15 && a24 == 1) && a15 <= 8) && a21 <= 6) && 0 < a12 + 43) && a12 <= 225871)) || ((((a24 == 1 && 9 <= a15) && (\exists v_~a12~0_439 : int :: (558346 + a12 <= 9 * v_~a12~0_439 / 10 && v_~a12~0_439 <= 73282) && 80 < v_~a12~0_439)) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a24 == 1 && 9 <= a15) && 0 <= a12 + 42) && a12 <= 225871)) || (((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42) && a15 == 8)) || ((((7 <= a15 && ((2 + a12 * 9 / 10) % 5 == 0 || (-562768 + a12 * 9 / 10) / 5 + 43 < 0)) && a24 == 1) && (-562768 + a12 * 9 / 10) / 5 + 42 < 0) && 10 <= a21) RESULT: Ultimate proved your program to be correct! [2022-12-13 20:15:31,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3e7d33a-b4aa-4142-9a63-904e5ee45cb8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE