./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label46.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/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_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label46.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/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_cf930bcc-2d20-488e-ad2e-56730e19cdb7/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 454a0d8e81468f46c7e33771197733cd10e6f7a6ab6cc63470839978aa4b6ed5 --- 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 17:54:56,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:54:56,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:54:56,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:54:56,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:54:56,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:54:56,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:54:56,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:54:56,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:54:56,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:54:56,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:54:56,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:54:56,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:54:56,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:54:56,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:54:56,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:54:56,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:54:56,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:54:56,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:54:56,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:54:56,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:54:56,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:54:56,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:54:56,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:54:56,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:54:56,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:54:56,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:54:56,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:54:56,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:54:56,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:54:56,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:54:56,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:54:56,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:54:56,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:54:56,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:54:56,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:54:56,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:54:56,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:54:56,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:54:56,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:54:56,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:54:56,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 17:54:56,897 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:54:56,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:54:56,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:54:56,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:54:56,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:54:56,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:54:56,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:54:56,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:54:56,904 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:54:56,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:54:56,905 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:54:56,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:54:56,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:54:56,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:54:56,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:54:56,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:54:56,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:54:56,906 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:54:56,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:54:56,906 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:54:56,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:54:56,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:54:56,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:54:56,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:54:56,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:54:56,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:54:56,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:54:56,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:54:56,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:54:56,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:54:56,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:54:56,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:54:56,909 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:54:56,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:54:56,909 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:54:56,909 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_cf930bcc-2d20-488e-ad2e-56730e19cdb7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 454a0d8e81468f46c7e33771197733cd10e6f7a6ab6cc63470839978aa4b6ed5 [2022-12-13 17:54:57,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:54:57,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:54:57,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:54:57,100 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:54:57,100 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:54:57,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-rers2012/Problem14_label46.c [2022-12-13 17:54:59,698 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:54:59,910 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:54:59,911 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/sv-benchmarks/c/eca-rers2012/Problem14_label46.c [2022-12-13 17:54:59,921 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/data/32d74b750/11bb703fb16b4aa0a88d8aba7ba78499/FLAGc6404661f [2022-12-13 17:55:00,266 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/data/32d74b750/11bb703fb16b4aa0a88d8aba7ba78499 [2022-12-13 17:55:00,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:55:00,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:55:00,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:55:00,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:55:00,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:55:00,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3354166e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00, skipping insertion in model container [2022-12-13 17:55:00,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:55:00,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:55:00,429 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_cf930bcc-2d20-488e-ad2e-56730e19cdb7/sv-benchmarks/c/eca-rers2012/Problem14_label46.c[4146,4159] [2022-12-13 17:55:00,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:55:00,551 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:55:00,565 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_cf930bcc-2d20-488e-ad2e-56730e19cdb7/sv-benchmarks/c/eca-rers2012/Problem14_label46.c[4146,4159] [2022-12-13 17:55:00,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:55:00,637 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:55:00,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00 WrapperNode [2022-12-13 17:55:00,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:55:00,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:55:00,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:55:00,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:55:00,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,706 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2022-12-13 17:55:00,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:55:00,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:55:00,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:55:00,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:55:00,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:55:00,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:55:00,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:55:00,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:55:00,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (1/1) ... [2022-12-13 17:55:00,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:55:00,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:00,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:55:00,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:55:00,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:55:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:55:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:55:00,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:55:00,905 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:55:00,906 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:55:01,792 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:55:01,799 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:55:01,799 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 17:55:01,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:55:01 BoogieIcfgContainer [2022-12-13 17:55:01,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:55:01,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:55:01,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:55:01,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:55:01,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:55:00" (1/3) ... [2022-12-13 17:55:01,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7216a367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:55:01, skipping insertion in model container [2022-12-13 17:55:01,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:55:00" (2/3) ... [2022-12-13 17:55:01,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7216a367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:55:01, skipping insertion in model container [2022-12-13 17:55:01,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:55:01" (3/3) ... [2022-12-13 17:55:01,807 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label46.c [2022-12-13 17:55:01,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:55:01,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 17:55:01,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:55:01,864 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;@7f81d823, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:55:01,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 17:55:01,868 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 17:55:01,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-13 17:55:01,873 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:01,874 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] [2022-12-13 17:55:01,874 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:01,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:01,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1453294289, now seen corresponding path program 1 times [2022-12-13 17:55:01,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:01,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131719333] [2022-12-13 17:55:01,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:01,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:02,183 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 17:55:02,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:02,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131719333] [2022-12-13 17:55:02,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131719333] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:02,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:02,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:02,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260344525] [2022-12-13 17:55:02,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:02,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:02,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:02,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:02,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:55:02,215 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 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 17:55:03,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:03,289 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2022-12-13 17:55:03,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:03,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-12-13 17:55:03,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:03,301 INFO L225 Difference]: With dead ends: 852 [2022-12-13 17:55:03,301 INFO L226 Difference]: Without dead ends: 538 [2022-12-13 17:55:03,305 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 17:55:03,307 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 556 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:03,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 44 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 17:55:03,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-12-13 17:55:03,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-12-13 17:55:03,352 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 17:55:03,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2022-12-13 17:55:03,354 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 39 [2022-12-13 17:55:03,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:03,355 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2022-12-13 17:55:03,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 17:55:03,355 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2022-12-13 17:55:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-12-13 17:55:03,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:03,359 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, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 17:55:03,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:55:03,359 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:03,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:03,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1976295897, now seen corresponding path program 1 times [2022-12-13 17:55:03,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:03,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393794600] [2022-12-13 17:55:03,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:03,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:03,523 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 17:55:03,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:03,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393794600] [2022-12-13 17:55:03,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393794600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:03,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:03,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:55:03,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631094030] [2022-12-13 17:55:03,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:03,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:03,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:03,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:03,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:03,527 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 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 17:55:03,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:03,992 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2022-12-13 17:55:03,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:03,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 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 187 [2022-12-13 17:55:03,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:03,994 INFO L225 Difference]: With dead ends: 1074 [2022-12-13 17:55:03,994 INFO L226 Difference]: Without dead ends: 716 [2022-12-13 17:55:03,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:03,996 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:03,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:55:03,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-12-13 17:55:04,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2022-12-13 17:55:04,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 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 17:55:04,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2022-12-13 17:55:04,015 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 187 [2022-12-13 17:55:04,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:04,015 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2022-12-13 17:55:04,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 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 17:55:04,016 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2022-12-13 17:55:04,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-12-13 17:55:04,018 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:04,018 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:04,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:55:04,018 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:04,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:04,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1989656586, now seen corresponding path program 1 times [2022-12-13 17:55:04,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:04,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646041121] [2022-12-13 17:55:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:04,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:04,242 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 17:55:04,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:04,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646041121] [2022-12-13 17:55:04,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646041121] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:04,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:04,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:04,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799139452] [2022-12-13 17:55:04,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:04,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:04,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:04,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:04,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:55:04,246 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 17:55:04,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:04,821 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2022-12-13 17:55:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:04,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 210 [2022-12-13 17:55:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:04,825 INFO L225 Difference]: With dead ends: 1637 [2022-12-13 17:55:04,825 INFO L226 Difference]: Without dead ends: 1072 [2022-12-13 17:55:04,827 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 17:55:04,828 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 110 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:04,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 113 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 17:55:04,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-12-13 17:55:04,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2022-12-13 17:55:04,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1724524076147815) internal successors, (1047), 893 states have internal predecessors, (1047), 0 states have call successors, (0), 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 17:55:04,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2022-12-13 17:55:04,852 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 210 [2022-12-13 17:55:04,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:04,853 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2022-12-13 17:55:04,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 17:55:04,853 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2022-12-13 17:55:04,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-12-13 17:55:04,860 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:04,860 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:04,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:55:04,860 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:04,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1545432834, now seen corresponding path program 1 times [2022-12-13 17:55:04,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:04,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458687996] [2022-12-13 17:55:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:04,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,414 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 174 proven. 130 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 17:55:05,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:05,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458687996] [2022-12-13 17:55:05,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458687996] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:05,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33387134] [2022-12-13 17:55:05,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:05,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:05,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:05,417 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:05,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 17:55:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:55:05,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:05,614 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-12-13 17:55:05,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:05,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33387134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:05,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:05,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-12-13 17:55:05,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123277155] [2022-12-13 17:55:05,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:05,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:05,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:05,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:05,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:05,618 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:55:06,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:06,090 INFO L93 Difference]: Finished difference Result 2320 states and 2778 transitions. [2022-12-13 17:55:06,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:06,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 341 [2022-12-13 17:55:06,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:06,094 INFO L225 Difference]: With dead ends: 2320 [2022-12-13 17:55:06,095 INFO L226 Difference]: Without dead ends: 1606 [2022-12-13 17:55:06,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 340 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 17:55:06,096 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 142 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:06,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 265 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:55:06,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2022-12-13 17:55:06,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2022-12-13 17:55:06,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.1401541695865451) internal successors, (1627), 1427 states have internal predecessors, (1627), 0 states have call successors, (0), 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 17:55:06,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1627 transitions. [2022-12-13 17:55:06,117 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1627 transitions. Word has length 341 [2022-12-13 17:55:06,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:06,118 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1627 transitions. [2022-12-13 17:55:06,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:55:06,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1627 transitions. [2022-12-13 17:55:06,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2022-12-13 17:55:06,123 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:06,123 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:06,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 17:55:06,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:06,325 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:06,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:06,325 INFO L85 PathProgramCache]: Analyzing trace with hash 560605277, now seen corresponding path program 1 times [2022-12-13 17:55:06,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:06,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739597160] [2022-12-13 17:55:06,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:06,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:06,692 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-12-13 17:55:06,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:06,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739597160] [2022-12-13 17:55:06,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739597160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:06,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:06,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:06,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301065814] [2022-12-13 17:55:06,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:06,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:06,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:06,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:06,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:06,695 INFO L87 Difference]: Start difference. First operand 1428 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 17:55:07,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:07,165 INFO L93 Difference]: Finished difference Result 3210 states and 3757 transitions. [2022-12-13 17:55:07,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:07,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 440 [2022-12-13 17:55:07,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:07,180 INFO L225 Difference]: With dead ends: 3210 [2022-12-13 17:55:07,180 INFO L226 Difference]: Without dead ends: 1962 [2022-12-13 17:55:07,181 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 17:55:07,182 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:07,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 77 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:55:07,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-12-13 17:55:07,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2022-12-13 17:55:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.134043746494672) internal successors, (2022), 1783 states have internal predecessors, (2022), 0 states have call successors, (0), 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 17:55:07,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2022 transitions. [2022-12-13 17:55:07,217 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2022 transitions. Word has length 440 [2022-12-13 17:55:07,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:07,218 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 2022 transitions. [2022-12-13 17:55:07,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 17:55:07,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2022 transitions. [2022-12-13 17:55:07,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2022-12-13 17:55:07,224 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:07,224 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2022-12-13 17:55:07,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:55:07,224 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:07,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:07,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1453668839, now seen corresponding path program 1 times [2022-12-13 17:55:07,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:07,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111439105] [2022-12-13 17:55:07,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:07,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:07,583 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-12-13 17:55:07,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:07,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111439105] [2022-12-13 17:55:07,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111439105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:07,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:07,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:07,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370866733] [2022-12-13 17:55:07,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:07,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:07,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:07,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:07,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:55:07,587 INFO L87 Difference]: Start difference. First operand 1784 states and 2022 transitions. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 17:55:08,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:08,166 INFO L93 Difference]: Finished difference Result 3744 states and 4238 transitions. [2022-12-13 17:55:08,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:08,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 464 [2022-12-13 17:55:08,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:08,171 INFO L225 Difference]: With dead ends: 3744 [2022-12-13 17:55:08,171 INFO L226 Difference]: Without dead ends: 2140 [2022-12-13 17:55:08,172 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 17:55:08,173 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:08,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 90 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 17:55:08,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-12-13 17:55:08,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2022-12-13 17:55:08,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.11781206171108) internal successors, (2391), 2139 states have internal predecessors, (2391), 0 states have call successors, (0), 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 17:55:08,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2391 transitions. [2022-12-13 17:55:08,201 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2391 transitions. Word has length 464 [2022-12-13 17:55:08,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:08,201 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2391 transitions. [2022-12-13 17:55:08,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 17:55:08,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2391 transitions. [2022-12-13 17:55:08,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2022-12-13 17:55:08,204 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:08,204 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2022-12-13 17:55:08,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:55:08,205 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:08,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:08,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1503435120, now seen corresponding path program 1 times [2022-12-13 17:55:08,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:08,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869179641] [2022-12-13 17:55:08,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:08,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:08,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2022-12-13 17:55:08,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:08,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869179641] [2022-12-13 17:55:08,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869179641] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:08,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:08,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:08,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331260863] [2022-12-13 17:55:08,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:08,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:08,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:08,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:08,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:55:08,545 INFO L87 Difference]: Start difference. First operand 2140 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 17:55:08,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:08,972 INFO L93 Difference]: Finished difference Result 4336 states and 4849 transitions. [2022-12-13 17:55:08,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:08,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 520 [2022-12-13 17:55:08,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:08,979 INFO L225 Difference]: With dead ends: 4336 [2022-12-13 17:55:08,979 INFO L226 Difference]: Without dead ends: 2318 [2022-12-13 17:55:08,981 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 17:55:08,982 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:08,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 17 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:55:08,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-12-13 17:55:09,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2022-12-13 17:55:09,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.0855539971949508) internal successors, (2322), 2139 states have internal predecessors, (2322), 0 states have call successors, (0), 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 17:55:09,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2322 transitions. [2022-12-13 17:55:09,011 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2322 transitions. Word has length 520 [2022-12-13 17:55:09,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:09,011 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2322 transitions. [2022-12-13 17:55:09,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 17:55:09,012 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2322 transitions. [2022-12-13 17:55:09,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-12-13 17:55:09,014 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:09,014 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:09,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:55:09,015 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:09,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:09,015 INFO L85 PathProgramCache]: Analyzing trace with hash -145271439, now seen corresponding path program 2 times [2022-12-13 17:55:09,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:09,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497598427] [2022-12-13 17:55:09,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:09,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 779 proven. 11 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-12-13 17:55:09,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:09,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497598427] [2022-12-13 17:55:09,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497598427] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:09,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954491443] [2022-12-13 17:55:09,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 17:55:09,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:09,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:09,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:09,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 17:55:09,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 17:55:09,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:55:09,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:55:09,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 790 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-12-13 17:55:10,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:10,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954491443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:10,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:10,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-12-13 17:55:10,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909408632] [2022-12-13 17:55:10,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:10,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:10,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:10,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:10,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:10,301 INFO L87 Difference]: Start difference. First operand 2140 states and 2322 transitions. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 17:55:10,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:10,890 INFO L93 Difference]: Finished difference Result 4990 states and 5475 transitions. [2022-12-13 17:55:10,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:10,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 546 [2022-12-13 17:55:10,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:10,896 INFO L225 Difference]: With dead ends: 4990 [2022-12-13 17:55:10,896 INFO L226 Difference]: Without dead ends: 3030 [2022-12-13 17:55:10,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:10,898 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 162 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:10,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 15 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 17:55:10,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2022-12-13 17:55:10,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2496. [2022-12-13 17:55:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0789579158316633) internal successors, (2692), 2495 states have internal predecessors, (2692), 0 states have call successors, (0), 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 17:55:10,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2692 transitions. [2022-12-13 17:55:10,944 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2692 transitions. Word has length 546 [2022-12-13 17:55:10,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:10,945 INFO L495 AbstractCegarLoop]: Abstraction has 2496 states and 2692 transitions. [2022-12-13 17:55:10,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 17:55:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2692 transitions. [2022-12-13 17:55:10,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-12-13 17:55:10,954 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:10,954 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:10,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 17:55:11,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:11,155 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:11,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:11,156 INFO L85 PathProgramCache]: Analyzing trace with hash 823062922, now seen corresponding path program 1 times [2022-12-13 17:55:11,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:11,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586679951] [2022-12-13 17:55:11,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:11,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:11,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 792 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-12-13 17:55:11,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:11,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586679951] [2022-12-13 17:55:11,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586679951] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:11,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:11,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:11,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197002158] [2022-12-13 17:55:11,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:11,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:11,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:11,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:11,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:11,448 INFO L87 Difference]: Start difference. First operand 2496 states and 2692 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 17:55:11,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:11,818 INFO L93 Difference]: Finished difference Result 5702 states and 6216 transitions. [2022-12-13 17:55:11,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:11,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 553 [2022-12-13 17:55:11,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:11,823 INFO L225 Difference]: With dead ends: 5702 [2022-12-13 17:55:11,824 INFO L226 Difference]: Without dead ends: 3386 [2022-12-13 17:55:11,825 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 17:55:11,825 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 74 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 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, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:11,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:55:11,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2022-12-13 17:55:11,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2022-12-13 17:55:11,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0768094534711965) internal successors, (3645), 3385 states have internal predecessors, (3645), 0 states have call successors, (0), 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 17:55:11,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3645 transitions. [2022-12-13 17:55:11,860 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3645 transitions. Word has length 553 [2022-12-13 17:55:11,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:11,861 INFO L495 AbstractCegarLoop]: Abstraction has 3386 states and 3645 transitions. [2022-12-13 17:55:11,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 17:55:11,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3645 transitions. [2022-12-13 17:55:11,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-12-13 17:55:11,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:11,865 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:11,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:55:11,865 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:11,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:11,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2111047309, now seen corresponding path program 1 times [2022-12-13 17:55:11,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:11,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002295062] [2022-12-13 17:55:11,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:11,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 806 proven. 195 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-12-13 17:55:12,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:12,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002295062] [2022-12-13 17:55:12,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002295062] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:12,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397534121] [2022-12-13 17:55:12,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:12,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:12,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:12,425 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:12,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 17:55:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:12,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:55:12,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2022-12-13 17:55:12,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:12,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397534121] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:12,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:12,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-12-13 17:55:12,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270248016] [2022-12-13 17:55:12,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:12,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:12,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:12,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:12,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:12,605 INFO L87 Difference]: Start difference. First operand 3386 states and 3645 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 17:55:12,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:12,990 INFO L93 Difference]: Finished difference Result 7126 states and 7749 transitions. [2022-12-13 17:55:12,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:12,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 598 [2022-12-13 17:55:12,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:13,003 INFO L225 Difference]: With dead ends: 7126 [2022-12-13 17:55:13,003 INFO L226 Difference]: Without dead ends: 3920 [2022-12-13 17:55:13,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:13,006 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 142 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:13,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 235 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:55:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-12-13 17:55:13,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2022-12-13 17:55:13,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.079123229083133) internal successors, (4037), 3741 states have internal predecessors, (4037), 0 states have call successors, (0), 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 17:55:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4037 transitions. [2022-12-13 17:55:13,072 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4037 transitions. Word has length 598 [2022-12-13 17:55:13,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:13,074 INFO L495 AbstractCegarLoop]: Abstraction has 3742 states and 4037 transitions. [2022-12-13 17:55:13,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 17:55:13,074 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4037 transitions. [2022-12-13 17:55:13,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2022-12-13 17:55:13,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:13,084 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:13,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 17:55:13,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:13,285 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:13,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:13,286 INFO L85 PathProgramCache]: Analyzing trace with hash -932781460, now seen corresponding path program 1 times [2022-12-13 17:55:13,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:13,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269762911] [2022-12-13 17:55:13,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:13,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:13,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 882 proven. 195 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-12-13 17:55:13,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:13,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269762911] [2022-12-13 17:55:13,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269762911] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:13,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276231607] [2022-12-13 17:55:13,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:13,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:13,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:13,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:13,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 17:55:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:14,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:55:14,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 550 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2022-12-13 17:55:14,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:14,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276231607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:14,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:14,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-12-13 17:55:14,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503583702] [2022-12-13 17:55:14,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:14,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:14,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:14,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:14,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:14,403 INFO L87 Difference]: Start difference. First operand 3742 states and 4037 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 0 states have call successors, (0), 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 17:55:14,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:14,727 INFO L93 Difference]: Finished difference Result 8016 states and 8636 transitions. [2022-12-13 17:55:14,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:14,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 0 states have call successors, (0), 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 617 [2022-12-13 17:55:14,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:14,733 INFO L225 Difference]: With dead ends: 8016 [2022-12-13 17:55:14,733 INFO L226 Difference]: Without dead ends: 4454 [2022-12-13 17:55:14,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:14,735 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:14,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 50 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:55:14,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2022-12-13 17:55:14,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3920. [2022-12-13 17:55:14,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.0773156417453431) internal successors, (4222), 3919 states have internal predecessors, (4222), 0 states have call successors, (0), 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 17:55:14,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4222 transitions. [2022-12-13 17:55:14,770 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4222 transitions. Word has length 617 [2022-12-13 17:55:14,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:14,771 INFO L495 AbstractCegarLoop]: Abstraction has 3920 states and 4222 transitions. [2022-12-13 17:55:14,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 0 states have call successors, (0), 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 17:55:14,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4222 transitions. [2022-12-13 17:55:14,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2022-12-13 17:55:14,776 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:14,776 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:14,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 17:55:14,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:14,978 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:14,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1940762816, now seen corresponding path program 1 times [2022-12-13 17:55:14,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:14,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130562770] [2022-12-13 17:55:14,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:14,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:15,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 873 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-12-13 17:55:15,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:15,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130562770] [2022-12-13 17:55:15,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130562770] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:15,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:15,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:15,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809441900] [2022-12-13 17:55:15,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:15,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:15,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:15,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:15,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:15,233 INFO L87 Difference]: Start difference. First operand 3920 states and 4222 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 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 17:55:15,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:15,661 INFO L93 Difference]: Finished difference Result 9084 states and 9808 transitions. [2022-12-13 17:55:15,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:15,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 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 639 [2022-12-13 17:55:15,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:15,673 INFO L225 Difference]: With dead ends: 9084 [2022-12-13 17:55:15,673 INFO L226 Difference]: Without dead ends: 5344 [2022-12-13 17:55:15,675 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 17:55:15,675 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:15,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 51 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:55:15,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-12-13 17:55:15,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344. [2022-12-13 17:55:15,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0679393599101628) internal successors, (5706), 5343 states have internal predecessors, (5706), 0 states have call successors, (0), 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 17:55:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5706 transitions. [2022-12-13 17:55:15,722 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5706 transitions. Word has length 639 [2022-12-13 17:55:15,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:15,722 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5706 transitions. [2022-12-13 17:55:15,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 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 17:55:15,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5706 transitions. [2022-12-13 17:55:15,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2022-12-13 17:55:15,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:15,727 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, 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, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:15,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 17:55:15,727 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:15,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:15,727 INFO L85 PathProgramCache]: Analyzing trace with hash 749754985, now seen corresponding path program 1 times [2022-12-13 17:55:15,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:15,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120638700] [2022-12-13 17:55:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:15,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:16,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2090 backedges. 1532 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-12-13 17:55:16,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:16,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120638700] [2022-12-13 17:55:16,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120638700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:16,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:16,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:16,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196125056] [2022-12-13 17:55:16,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:16,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:16,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:16,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:16,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:16,122 INFO L87 Difference]: Start difference. First operand 5344 states and 5706 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 17:55:16,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:16,548 INFO L93 Difference]: Finished difference Result 10508 states and 11231 transitions. [2022-12-13 17:55:16,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:16,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 718 [2022-12-13 17:55:16,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:16,555 INFO L225 Difference]: With dead ends: 10508 [2022-12-13 17:55:16,555 INFO L226 Difference]: Without dead ends: 5344 [2022-12-13 17:55:16,557 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 17:55:16,557 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 103 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:16,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 242 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:55:16,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-12-13 17:55:16,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2022-12-13 17:55:16,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0648596321393997) internal successors, (5500), 5165 states have internal predecessors, (5500), 0 states have call successors, (0), 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 17:55:16,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5500 transitions. [2022-12-13 17:55:16,598 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5500 transitions. Word has length 718 [2022-12-13 17:55:16,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:16,599 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5500 transitions. [2022-12-13 17:55:16,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 17:55:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5500 transitions. [2022-12-13 17:55:16,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2022-12-13 17:55:16,603 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:16,603 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:16,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 17:55:16,604 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:16,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:16,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1898901820, now seen corresponding path program 1 times [2022-12-13 17:55:16,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:16,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162629418] [2022-12-13 17:55:16,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:16,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 1334 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-12-13 17:55:16,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:16,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162629418] [2022-12-13 17:55:16,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162629418] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:16,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215517054] [2022-12-13 17:55:16,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:16,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:16,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:16,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:16,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 17:55:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:17,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:55:17,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:17,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 725 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2022-12-13 17:55:17,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:17,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215517054] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:17,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:17,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-13 17:55:17,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407061977] [2022-12-13 17:55:17,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:17,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:17,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:17,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:17,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:55:17,261 INFO L87 Difference]: Start difference. First operand 5166 states and 5500 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 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 17:55:17,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:17,709 INFO L93 Difference]: Finished difference Result 10686 states and 11422 transitions. [2022-12-13 17:55:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:17,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 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 794 [2022-12-13 17:55:17,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:17,716 INFO L225 Difference]: With dead ends: 10686 [2022-12-13 17:55:17,716 INFO L226 Difference]: Without dead ends: 5700 [2022-12-13 17:55:17,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:55:17,718 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 81 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:17,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 27 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:55:17,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-12-13 17:55:17,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2022-12-13 17:55:17,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0626425688717318) internal successors, (6056), 5699 states have internal predecessors, (6056), 0 states have call successors, (0), 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 17:55:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 6056 transitions. [2022-12-13 17:55:17,769 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 6056 transitions. Word has length 794 [2022-12-13 17:55:17,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:17,769 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 6056 transitions. [2022-12-13 17:55:17,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 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 17:55:17,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 6056 transitions. [2022-12-13 17:55:17,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2022-12-13 17:55:17,774 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:17,774 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, 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, 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, 2, 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] [2022-12-13 17:55:17,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 17:55:17,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:17,975 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:17,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:17,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1777817371, now seen corresponding path program 1 times [2022-12-13 17:55:17,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:17,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440334720] [2022-12-13 17:55:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:17,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:18,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-12-13 17:55:18,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:18,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440334720] [2022-12-13 17:55:18,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440334720] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:18,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231939843] [2022-12-13 17:55:18,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:18,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:18,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:18,360 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:18,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 17:55:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:18,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:55:18,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:18,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-12-13 17:55:18,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:55:19,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-12-13 17:55:19,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231939843] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:55:19,060 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:55:19,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-12-13 17:55:19,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159655528] [2022-12-13 17:55:19,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:55:19,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:55:19,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:19,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:55:19,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:55:19,063 INFO L87 Difference]: Start difference. First operand 5700 states and 6056 transitions. Second operand has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 0 states have call successors, (0), 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 17:55:19,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:19,918 INFO L93 Difference]: Finished difference Result 13356 states and 14210 transitions. [2022-12-13 17:55:19,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:55:19,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 0 states have call successors, (0), 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 823 [2022-12-13 17:55:19,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:19,926 INFO L225 Difference]: With dead ends: 13356 [2022-12-13 17:55:19,926 INFO L226 Difference]: Without dead ends: 7836 [2022-12-13 17:55:19,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1648 GetRequests, 1644 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 17:55:19,930 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 44 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:19,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 67 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 17:55:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7836 states. [2022-12-13 17:55:19,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7836 to 6768. [2022-12-13 17:55:19,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0604403723954485) internal successors, (7176), 6767 states have internal predecessors, (7176), 0 states have call successors, (0), 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 17:55:19,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7176 transitions. [2022-12-13 17:55:19,997 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7176 transitions. Word has length 823 [2022-12-13 17:55:19,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:19,997 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 7176 transitions. [2022-12-13 17:55:19,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 0 states have call successors, (0), 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 17:55:19,998 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7176 transitions. [2022-12-13 17:55:20,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2022-12-13 17:55:20,003 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:20,003 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 17:55:20,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 17:55:20,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 17:55:20,204 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:20,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:20,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1631092303, now seen corresponding path program 1 times [2022-12-13 17:55:20,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:20,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213788602] [2022-12-13 17:55:20,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:20,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:20,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 1613 proven. 93 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-12-13 17:55:20,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:20,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213788602] [2022-12-13 17:55:20,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213788602] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:20,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232416825] [2022-12-13 17:55:20,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:20,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:20,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:20,830 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:20,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 17:55:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:21,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:55:21,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:21,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 1706 proven. 0 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-12-13 17:55:21,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:21,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232416825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:21,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:21,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-12-13 17:55:21,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394171945] [2022-12-13 17:55:21,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:21,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:21,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:21,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:21,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:55:21,353 INFO L87 Difference]: Start difference. First operand 6768 states and 7176 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 17:55:21,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:21,709 INFO L93 Difference]: Finished difference Result 13534 states and 14361 transitions. [2022-12-13 17:55:21,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:21,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 913 [2022-12-13 17:55:21,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:21,717 INFO L225 Difference]: With dead ends: 13534 [2022-12-13 17:55:21,717 INFO L226 Difference]: Without dead ends: 6946 [2022-12-13 17:55:21,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 916 GetRequests, 912 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 17:55:21,721 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:21,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 64 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:55:21,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2022-12-13 17:55:21,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 6768. [2022-12-13 17:55:21,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0613270282252105) internal successors, (7182), 6767 states have internal predecessors, (7182), 0 states have call successors, (0), 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 17:55:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7182 transitions. [2022-12-13 17:55:21,787 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7182 transitions. Word has length 913 [2022-12-13 17:55:21,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:21,788 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 7182 transitions. [2022-12-13 17:55:21,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 17:55:21,788 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7182 transitions. [2022-12-13 17:55:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2022-12-13 17:55:21,794 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:21,794 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, 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, 6, 6, 6, 6, 5, 4, 4, 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, 1, 1] [2022-12-13 17:55:21,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 17:55:21,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 17:55:21,995 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:21,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:21,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1246204830, now seen corresponding path program 1 times [2022-12-13 17:55:21,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:21,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005050164] [2022-12-13 17:55:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:21,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:22,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3031 backedges. 2044 proven. 0 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2022-12-13 17:55:22,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:22,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005050164] [2022-12-13 17:55:22,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005050164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:22,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:22,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:22,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346695073] [2022-12-13 17:55:22,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:22,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:22,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:22,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:22,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:22,761 INFO L87 Difference]: Start difference. First operand 6768 states and 7182 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 17:55:23,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:23,120 INFO L93 Difference]: Finished difference Result 13178 states and 14003 transitions. [2022-12-13 17:55:23,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:23,121 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 954 [2022-12-13 17:55:23,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:23,128 INFO L225 Difference]: With dead ends: 13178 [2022-12-13 17:55:23,129 INFO L226 Difference]: Without dead ends: 6590 [2022-12-13 17:55:23,132 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 17:55:23,133 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:23,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 225 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:55:23,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2022-12-13 17:55:23,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6590. [2022-12-13 17:55:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0538776749127334) internal successors, (6944), 6589 states have internal predecessors, (6944), 0 states have call successors, (0), 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 17:55:23,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 6944 transitions. [2022-12-13 17:55:23,193 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 6944 transitions. Word has length 954 [2022-12-13 17:55:23,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:23,193 INFO L495 AbstractCegarLoop]: Abstraction has 6590 states and 6944 transitions. [2022-12-13 17:55:23,193 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 17:55:23,194 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 6944 transitions. [2022-12-13 17:55:23,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2022-12-13 17:55:23,208 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:23,208 INFO L195 NwaCegarLoop]: trace histogram [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, 10, 10, 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 6, 6, 6, 5, 4, 4, 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, 1] [2022-12-13 17:55:23,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 17:55:23,209 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:23,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:23,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1253897816, now seen corresponding path program 1 times [2022-12-13 17:55:23,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:23,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148783069] [2022-12-13 17:55:23,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:23,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:23,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3651 backedges. 1681 proven. 0 refuted. 0 times theorem prover too weak. 1970 trivial. 0 not checked. [2022-12-13 17:55:23,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:23,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148783069] [2022-12-13 17:55:23,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148783069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:23,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:23,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:55:23,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406505225] [2022-12-13 17:55:23,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:23,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:55:23,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:23,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:55:23,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:23,938 INFO L87 Difference]: Start difference. First operand 6590 states and 6944 transitions. Second operand has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:55:24,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:24,434 INFO L93 Difference]: Finished difference Result 12716 states and 13387 transitions. [2022-12-13 17:55:24,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:55:24,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1004 [2022-12-13 17:55:24,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:24,443 INFO L225 Difference]: With dead ends: 12716 [2022-12-13 17:55:24,443 INFO L226 Difference]: Without dead ends: 6056 [2022-12-13 17:55:24,448 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 17:55:24,448 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 45 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:24,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 23 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 17:55:24,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-12-13 17:55:24,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5878. [2022-12-13 17:55:24,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.042538710226306) internal successors, (6127), 5877 states have internal predecessors, (6127), 0 states have call successors, (0), 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 17:55:24,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6127 transitions. [2022-12-13 17:55:24,518 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6127 transitions. Word has length 1004 [2022-12-13 17:55:24,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:24,519 INFO L495 AbstractCegarLoop]: Abstraction has 5878 states and 6127 transitions. [2022-12-13 17:55:24,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:55:24,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6127 transitions. [2022-12-13 17:55:24,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2022-12-13 17:55:24,525 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:24,526 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, 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, 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:24,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 17:55:24,526 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:24,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:24,526 INFO L85 PathProgramCache]: Analyzing trace with hash -387054434, now seen corresponding path program 1 times [2022-12-13 17:55:24,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:24,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998898056] [2022-12-13 17:55:24,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:24,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3057 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2022-12-13 17:55:25,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:25,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998898056] [2022-12-13 17:55:25,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998898056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:25,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:25,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:25,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400394428] [2022-12-13 17:55:25,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:25,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:25,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:25,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:25,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:55:25,212 INFO L87 Difference]: Start difference. First operand 5878 states and 6127 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 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 17:55:25,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:25,629 INFO L93 Difference]: Finished difference Result 11418 states and 11907 transitions. [2022-12-13 17:55:25,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:25,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 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 1031 [2022-12-13 17:55:25,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:25,635 INFO L225 Difference]: With dead ends: 11418 [2022-12-13 17:55:25,635 INFO L226 Difference]: Without dead ends: 5700 [2022-12-13 17:55:25,639 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 17:55:25,639 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 41 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:25,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 17 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:55:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-12-13 17:55:25,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2022-12-13 17:55:25,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0414107738199685) internal successors, (5935), 5699 states have internal predecessors, (5935), 0 states have call successors, (0), 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 17:55:25,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5935 transitions. [2022-12-13 17:55:25,707 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5935 transitions. Word has length 1031 [2022-12-13 17:55:25,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:25,708 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 5935 transitions. [2022-12-13 17:55:25,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 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 17:55:25,708 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5935 transitions. [2022-12-13 17:55:25,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2022-12-13 17:55:25,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:25,714 INFO L195 NwaCegarLoop]: trace histogram [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, 10, 10, 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 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, 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, 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] [2022-12-13 17:55:25,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 17:55:25,714 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:25,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:25,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1310024199, now seen corresponding path program 1 times [2022-12-13 17:55:25,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:25,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60925601] [2022-12-13 17:55:25,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:25,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2476 proven. 72 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2022-12-13 17:55:26,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:26,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60925601] [2022-12-13 17:55:26,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60925601] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:26,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841939506] [2022-12-13 17:55:26,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:26,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:26,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:26,819 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:26,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 17:55:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:27,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 17:55:27,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2189 proven. 0 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2022-12-13 17:55:27,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:27,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841939506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:27,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:27,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-12-13 17:55:27,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857648905] [2022-12-13 17:55:27,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:27,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:27,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:27,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:27,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:27,255 INFO L87 Difference]: Start difference. First operand 5700 states and 5935 transitions. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:55:27,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:27,774 INFO L93 Difference]: Finished difference Result 11932 states and 12434 transitions. [2022-12-13 17:55:27,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:27,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1036 [2022-12-13 17:55:27,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:27,779 INFO L225 Difference]: With dead ends: 11932 [2022-12-13 17:55:27,779 INFO L226 Difference]: Without dead ends: 6412 [2022-12-13 17:55:27,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 1035 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:27,782 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 119 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:27,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 37 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 17:55:27,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2022-12-13 17:55:27,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 5878. [2022-12-13 17:55:27,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0404968521354432) internal successors, (6115), 5877 states have internal predecessors, (6115), 0 states have call successors, (0), 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 17:55:27,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6115 transitions. [2022-12-13 17:55:27,832 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6115 transitions. Word has length 1036 [2022-12-13 17:55:27,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:27,833 INFO L495 AbstractCegarLoop]: Abstraction has 5878 states and 6115 transitions. [2022-12-13 17:55:27,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:55:27,833 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6115 transitions. [2022-12-13 17:55:27,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1396 [2022-12-13 17:55:27,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:27,842 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, 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, 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, 7, 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 17:55:27,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 17:55:28,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:28,045 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:28,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:28,046 INFO L85 PathProgramCache]: Analyzing trace with hash 126987919, now seen corresponding path program 1 times [2022-12-13 17:55:28,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:28,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88278005] [2022-12-13 17:55:28,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:28,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:28,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5983 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2022-12-13 17:55:28,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:28,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88278005] [2022-12-13 17:55:28,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88278005] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:28,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:28,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:28,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772208532] [2022-12-13 17:55:28,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:28,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:28,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:28,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:28,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:28,693 INFO L87 Difference]: Start difference. First operand 5878 states and 6115 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 17:55:28,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:28,972 INFO L93 Difference]: Finished difference Result 11576 states and 12049 transitions. [2022-12-13 17:55:28,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:28,973 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 1395 [2022-12-13 17:55:28,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:28,977 INFO L225 Difference]: With dead ends: 11576 [2022-12-13 17:55:28,977 INFO L226 Difference]: Without dead ends: 5878 [2022-12-13 17:55:28,980 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 17:55:28,980 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 145 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:28,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 212 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:55:28,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-12-13 17:55:29,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5522. [2022-12-13 17:55:29,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0371309545372216) internal successors, (5726), 5521 states have internal predecessors, (5726), 0 states have call successors, (0), 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 17:55:29,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5726 transitions. [2022-12-13 17:55:29,028 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5726 transitions. Word has length 1395 [2022-12-13 17:55:29,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:29,029 INFO L495 AbstractCegarLoop]: Abstraction has 5522 states and 5726 transitions. [2022-12-13 17:55:29,029 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 17:55:29,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5726 transitions. [2022-12-13 17:55:29,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2022-12-13 17:55:29,042 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:29,042 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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, 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, 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, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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] [2022-12-13 17:55:29,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 17:55:29,043 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:29,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:29,043 INFO L85 PathProgramCache]: Analyzing trace with hash -339858598, now seen corresponding path program 1 times [2022-12-13 17:55:29,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:29,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508388146] [2022-12-13 17:55:29,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:29,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:31,511 INFO L134 CoverageAnalysis]: Checked inductivity of 8594 backedges. 4979 proven. 0 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2022-12-13 17:55:31,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:31,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508388146] [2022-12-13 17:55:31,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508388146] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:31,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:31,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:55:31,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357688827] [2022-12-13 17:55:31,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:31,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:55:31,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:31,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:55:31,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:31,513 INFO L87 Difference]: Start difference. First operand 5522 states and 5726 transitions. Second operand has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 0 states have call successors, (0), 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 17:55:32,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:32,402 INFO L93 Difference]: Finished difference Result 13905 states and 14473 transitions. [2022-12-13 17:55:32,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:55:32,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 0 states have call successors, (0), 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 1650 [2022-12-13 17:55:32,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:32,407 INFO L225 Difference]: With dead ends: 13905 [2022-12-13 17:55:32,407 INFO L226 Difference]: Without dead ends: 8014 [2022-12-13 17:55:32,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 17:55:32,409 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 153 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 2122 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:32,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 43 Invalid, 2229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2122 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 17:55:32,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8014 states. [2022-12-13 17:55:32,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8014 to 6768. [2022-12-13 17:55:32,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0304418501551649) internal successors, (6973), 6767 states have internal predecessors, (6973), 0 states have call successors, (0), 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 17:55:32,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 6973 transitions. [2022-12-13 17:55:32,465 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 6973 transitions. Word has length 1650 [2022-12-13 17:55:32,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:32,466 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 6973 transitions. [2022-12-13 17:55:32,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 0 states have call successors, (0), 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 17:55:32,466 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 6973 transitions. [2022-12-13 17:55:32,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1707 [2022-12-13 17:55:32,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:32,480 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, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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, 10, 10, 10, 10, 9, 8, 8, 7, 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, 1, 1, 1] [2022-12-13 17:55:32,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 17:55:32,481 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:32,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:32,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1104275563, now seen corresponding path program 1 times [2022-12-13 17:55:32,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:32,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599566266] [2022-12-13 17:55:32,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:32,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 9627 backedges. 2859 proven. 0 refuted. 0 times theorem prover too weak. 6768 trivial. 0 not checked. [2022-12-13 17:55:33,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:33,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599566266] [2022-12-13 17:55:33,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599566266] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:33,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:33,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:33,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111264281] [2022-12-13 17:55:33,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:33,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:33,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:33,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:33,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:55:33,837 INFO L87 Difference]: Start difference. First operand 6768 states and 6973 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 17:55:34,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:34,151 INFO L93 Difference]: Finished difference Result 13200 states and 13608 transitions. [2022-12-13 17:55:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:34,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 1706 [2022-12-13 17:55:34,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:34,155 INFO L225 Difference]: With dead ends: 13200 [2022-12-13 17:55:34,155 INFO L226 Difference]: Without dead ends: 6768 [2022-12-13 17:55:34,157 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 17:55:34,158 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 29 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:34,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 17 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:55:34,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2022-12-13 17:55:34,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 6768. [2022-12-13 17:55:34,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0295551943254027) internal successors, (6967), 6767 states have internal predecessors, (6967), 0 states have call successors, (0), 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 17:55:34,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 6967 transitions. [2022-12-13 17:55:34,212 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 6967 transitions. Word has length 1706 [2022-12-13 17:55:34,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:34,213 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 6967 transitions. [2022-12-13 17:55:34,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 17:55:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 6967 transitions. [2022-12-13 17:55:34,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1747 [2022-12-13 17:55:34,227 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:34,227 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, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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, 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, 11, 10, 10, 10, 10, 9, 8, 7, 7, 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, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:34,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 17:55:34,228 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:34,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:34,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1276225934, now seen corresponding path program 1 times [2022-12-13 17:55:34,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:34,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341783547] [2022-12-13 17:55:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:34,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:35,572 INFO L134 CoverageAnalysis]: Checked inductivity of 9575 backedges. 2804 proven. 1045 refuted. 0 times theorem prover too weak. 5726 trivial. 0 not checked. [2022-12-13 17:55:35,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:35,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341783547] [2022-12-13 17:55:35,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341783547] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:35,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245447041] [2022-12-13 17:55:35,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:35,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:35,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:35,574 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:35,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 17:55:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:35,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 2131 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:55:36,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:36,145 INFO L134 CoverageAnalysis]: Checked inductivity of 9575 backedges. 3849 proven. 0 refuted. 0 times theorem prover too weak. 5726 trivial. 0 not checked. [2022-12-13 17:55:36,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:36,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245447041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:36,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:36,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-12-13 17:55:36,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63965188] [2022-12-13 17:55:36,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:36,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:36,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:36,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:36,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:55:36,148 INFO L87 Difference]: Start difference. First operand 6768 states and 6967 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 17:55:36,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:36,450 INFO L93 Difference]: Finished difference Result 13712 states and 14111 transitions. [2022-12-13 17:55:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:36,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 1746 [2022-12-13 17:55:36,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:36,454 INFO L225 Difference]: With dead ends: 13712 [2022-12-13 17:55:36,454 INFO L226 Difference]: Without dead ends: 5522 [2022-12-13 17:55:36,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1749 GetRequests, 1745 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 17:55:36,457 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:36,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 225 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:55:36,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-12-13 17:55:36,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4988. [2022-12-13 17:55:36,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0200521355524363) internal successors, (5087), 4987 states have internal predecessors, (5087), 0 states have call successors, (0), 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 17:55:36,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5087 transitions. [2022-12-13 17:55:36,497 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5087 transitions. Word has length 1746 [2022-12-13 17:55:36,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:36,497 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5087 transitions. [2022-12-13 17:55:36,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 17:55:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5087 transitions. [2022-12-13 17:55:36,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1818 [2022-12-13 17:55:36,512 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:36,512 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, 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, 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, 11, 11, 11, 11, 10, 9, 9, 9, 8, 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 17:55:36,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-13 17:55:36,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-13 17:55:36,714 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:36,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:36,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1727618608, now seen corresponding path program 1 times [2022-12-13 17:55:36,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:36,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472113263] [2022-12-13 17:55:36,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:36,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:39,527 INFO L134 CoverageAnalysis]: Checked inductivity of 10935 backedges. 2784 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2022-12-13 17:55:39,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:39,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472113263] [2022-12-13 17:55:39,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472113263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:39,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:39,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:55:39,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867976301] [2022-12-13 17:55:39,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:39,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:55:39,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:39,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:55:39,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:55:39,530 INFO L87 Difference]: Start difference. First operand 4988 states and 5087 transitions. Second operand has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 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 17:55:40,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:40,044 INFO L93 Difference]: Finished difference Result 6953 states and 7112 transitions. [2022-12-13 17:55:40,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:55:40,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 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 1817 [2022-12-13 17:55:40,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:40,048 INFO L225 Difference]: With dead ends: 6953 [2022-12-13 17:55:40,048 INFO L226 Difference]: Without dead ends: 6768 [2022-12-13 17:55:40,049 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 17:55:40,050 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 113 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:40,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 20 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 17:55:40,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2022-12-13 17:55:40,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 6056. [2022-12-13 17:55:40,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.0236168455821635) internal successors, (6198), 6055 states have internal predecessors, (6198), 0 states have call successors, (0), 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 17:55:40,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6198 transitions. [2022-12-13 17:55:40,098 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6198 transitions. Word has length 1817 [2022-12-13 17:55:40,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:40,099 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6198 transitions. [2022-12-13 17:55:40,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 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 17:55:40,099 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6198 transitions. [2022-12-13 17:55:40,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1988 [2022-12-13 17:55:40,116 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:40,116 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 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, 14, 14, 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, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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, 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, 1] [2022-12-13 17:55:40,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 17:55:40,117 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:40,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:40,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1196899044, now seen corresponding path program 1 times [2022-12-13 17:55:40,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:40,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643735418] [2022-12-13 17:55:40,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:40,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:42,197 INFO L134 CoverageAnalysis]: Checked inductivity of 12745 backedges. 3559 proven. 812 refuted. 0 times theorem prover too weak. 8374 trivial. 0 not checked. [2022-12-13 17:55:42,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:42,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643735418] [2022-12-13 17:55:42,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643735418] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:42,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964813751] [2022-12-13 17:55:42,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:42,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:42,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:42,199 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:42,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 17:55:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:42,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 2415 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 17:55:42,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:44,131 INFO L134 CoverageAnalysis]: Checked inductivity of 12745 backedges. 4293 proven. 0 refuted. 0 times theorem prover too weak. 8452 trivial. 0 not checked. [2022-12-13 17:55:44,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:44,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964813751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:44,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:44,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2022-12-13 17:55:44,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005513986] [2022-12-13 17:55:44,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:44,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:55:44,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:44,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:55:44,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:55:44,136 INFO L87 Difference]: Start difference. First operand 6056 states and 6198 transitions. Second operand has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 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 17:55:44,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:44,549 INFO L93 Difference]: Finished difference Result 11803 states and 12085 transitions. [2022-12-13 17:55:44,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:55:44,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 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 1987 [2022-12-13 17:55:44,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:44,555 INFO L225 Difference]: With dead ends: 11803 [2022-12-13 17:55:44,555 INFO L226 Difference]: Without dead ends: 6056 [2022-12-13 17:55:44,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1991 GetRequests, 1984 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:55:44,558 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:44,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 25 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:55:44,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-12-13 17:55:44,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2022-12-13 17:55:44,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.022295623451693) internal successors, (6190), 6055 states have internal predecessors, (6190), 0 states have call successors, (0), 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 17:55:44,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6190 transitions. [2022-12-13 17:55:44,605 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6190 transitions. Word has length 1987 [2022-12-13 17:55:44,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:44,606 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6190 transitions. [2022-12-13 17:55:44,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 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 17:55:44,606 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6190 transitions. [2022-12-13 17:55:44,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2026 [2022-12-13 17:55:44,624 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:44,625 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 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, 1, 1] [2022-12-13 17:55:44,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 17:55:44,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:44,826 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:44,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:44,828 INFO L85 PathProgramCache]: Analyzing trace with hash -331699378, now seen corresponding path program 1 times [2022-12-13 17:55:44,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:44,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928445299] [2022-12-13 17:55:44,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:44,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 13917 backedges. 4560 proven. 0 refuted. 0 times theorem prover too weak. 9357 trivial. 0 not checked. [2022-12-13 17:55:46,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:46,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928445299] [2022-12-13 17:55:46,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928445299] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:46,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:46,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:55:46,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225966219] [2022-12-13 17:55:46,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:46,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:55:46,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:46,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:55:46,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:46,751 INFO L87 Difference]: Start difference. First operand 6056 states and 6190 transitions. Second operand has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 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 17:55:47,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:47,281 INFO L93 Difference]: Finished difference Result 11801 states and 12067 transitions. [2022-12-13 17:55:47,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:55:47,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 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 2025 [2022-12-13 17:55:47,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:47,285 INFO L225 Difference]: With dead ends: 11801 [2022-12-13 17:55:47,285 INFO L226 Difference]: Without dead ends: 6056 [2022-12-13 17:55:47,287 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 17:55:47,288 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:47,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 41 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 17:55:47,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-12-13 17:55:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2022-12-13 17:55:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.0193228736581337) internal successors, (6172), 6055 states have internal predecessors, (6172), 0 states have call successors, (0), 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 17:55:47,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6172 transitions. [2022-12-13 17:55:47,335 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6172 transitions. Word has length 2025 [2022-12-13 17:55:47,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:47,335 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6172 transitions. [2022-12-13 17:55:47,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 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 17:55:47,336 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6172 transitions. [2022-12-13 17:55:47,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2032 [2022-12-13 17:55:47,353 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:47,354 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 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, 1, 1] [2022-12-13 17:55:47,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 17:55:47,354 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:47,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:47,354 INFO L85 PathProgramCache]: Analyzing trace with hash -403831971, now seen corresponding path program 1 times [2022-12-13 17:55:47,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:47,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107677193] [2022-12-13 17:55:47,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:47,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:49,255 INFO L134 CoverageAnalysis]: Checked inductivity of 13995 backedges. 4584 proven. 0 refuted. 0 times theorem prover too weak. 9411 trivial. 0 not checked. [2022-12-13 17:55:49,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:49,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107677193] [2022-12-13 17:55:49,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107677193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:49,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:49,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:55:49,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104655090] [2022-12-13 17:55:49,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:49,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:55:49,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:49,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:55:49,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:49,259 INFO L87 Difference]: Start difference. First operand 6056 states and 6172 transitions. Second operand has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:55:49,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:49,624 INFO L93 Difference]: Finished difference Result 11629 states and 11856 transitions. [2022-12-13 17:55:49,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:55:49,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2031 [2022-12-13 17:55:49,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:49,629 INFO L225 Difference]: With dead ends: 11629 [2022-12-13 17:55:49,629 INFO L226 Difference]: Without dead ends: 5878 [2022-12-13 17:55:49,632 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 17:55:49,633 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:49,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 25 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 17:55:49,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-12-13 17:55:49,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5878. [2022-12-13 17:55:49,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0178662582950484) internal successors, (5982), 5877 states have internal predecessors, (5982), 0 states have call successors, (0), 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 17:55:49,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 5982 transitions. [2022-12-13 17:55:49,688 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 5982 transitions. Word has length 2031 [2022-12-13 17:55:49,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:49,689 INFO L495 AbstractCegarLoop]: Abstraction has 5878 states and 5982 transitions. [2022-12-13 17:55:49,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:55:49,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 5982 transitions. [2022-12-13 17:55:49,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2120 [2022-12-13 17:55:49,708 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:49,708 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 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, 14, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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 17:55:49,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 17:55:49,708 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:49,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:49,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2140269625, now seen corresponding path program 1 times [2022-12-13 17:55:49,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:49,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988577671] [2022-12-13 17:55:49,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:49,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 14529 backedges. 3210 proven. 0 refuted. 0 times theorem prover too weak. 11319 trivial. 0 not checked. [2022-12-13 17:55:53,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:53,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988577671] [2022-12-13 17:55:53,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988577671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:53,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:53,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:55:53,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049004657] [2022-12-13 17:55:53,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:53,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:53,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:53,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:53,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:55:53,284 INFO L87 Difference]: Start difference. First operand 5878 states and 5982 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 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 17:55:53,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:53,753 INFO L93 Difference]: Finished difference Result 5883 states and 5987 transitions. [2022-12-13 17:55:53,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:53,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 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 2119 [2022-12-13 17:55:53,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:53,755 INFO L225 Difference]: With dead ends: 5883 [2022-12-13 17:55:53,755 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 17:55:53,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:55:53,756 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 88 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:53,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 15 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 17:55:53,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 17:55:53,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 17:55:53,757 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 17:55:53,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 17:55:53,757 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2119 [2022-12-13 17:55:53,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:53,757 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 17:55:53,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 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 17:55:53,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 17:55:53,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 17:55:53,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 17:55:53,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 17:55:53,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 17:55:57,682 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2022-12-13 17:55:57,682 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-12-13 17:55:57,682 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2022-12-13 17:55:57,682 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,683 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-12-13 17:55:57,684 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2022-12-13 17:55:57,685 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2022-12-13 17:55:57,686 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-12-13 17:55:57,687 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2022-12-13 17:55:57,688 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-12-13 17:55:57,689 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 131) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-12-13 17:55:57,690 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,691 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-12-13 17:55:57,692 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2022-12-13 17:55:57,693 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2022-12-13 17:55:57,694 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,695 INFO L902 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2022-12-13 17:55:57,695 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2022-12-13 17:55:57,696 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2022-12-13 17:55:57,697 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,697 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,697 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-12-13 17:55:57,697 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,697 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2022-12-13 17:55:57,697 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse20 (= 7 ~a15~0))) (let ((.cse9 (<= 10 ~a21~0)) (.cse17 (<= 9 ~a21~0)) (.cse0 (= ~a24~0 1)) (.cse5 (<= ~a15~0 8)) (.cse10 (<= ~a15~0 7)) (.cse19 (not .cse20))) (let ((.cse3 (let ((.cse24 (div (+ ~a12~0 (- 600066)) 5))) (or (<= (+ 14 .cse24) 0) (and (<= (+ .cse24 13) 0) (let ((.cse25 (+ ~a12~0 4))) (= .cse25 (* (div .cse25 5) 5))))))) (.cse14 (= ~a21~0 10)) (.cse16 (= ~a15~0 8)) (.cse15 (<= (+ 49 ~a12~0) 0)) (.cse12 (= 5 ~a15~0)) (.cse21 (<= ~a21~0 8)) (.cse1 (<= 7 ~a21~0)) (.cse11 (<= ~a21~0 7)) (.cse8 (<= ~a12~0 11)) (.cse6 (<= ~a21~0 6)) (.cse2 (<= 20 ~a12~0)) (.cse4 (<= 8 ~a15~0)) (.cse23 (= ~a21~0 9)) (.cse13 (or (and .cse0 .cse5 .cse10 .cse9) (and .cse17 .cse0 .cse5 .cse10 .cse19))) (.cse18 (<= ~a21~0 9)) (.cse7 (not (<= (+ ~a12~0 43) 0))) (.cse22 (<= 0 (+ 41 ~a12~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse4) (and .cse0 .cse1 .cse5 .cse10 .cse11) (and .cse12 .cse13 .cse14) (and .cse0 (= 7 ~a21~0) .cse15 .cse16) (and .cse17 .cse18 .cse0 .cse10 .cse15) (and .cse8 .cse17 .cse18 .cse0 .cse5 .cse19 .cse7) (and (= ~a21~0 8) .cse0 (<= (+ 44 ~a12~0) 0) .cse20) (and .cse8 .cse0 .cse5 .cse7 .cse9) (and .cse0 (<= 8 ~a21~0) .cse21 .cse3 .cse4) (and .cse13 .cse14 .cse20) (and .cse0 .cse5 .cse6 .cse10 .cse7 .cse22) (and (not .cse8) .cse0 .cse23 .cse20) (and .cse0 .cse5 .cse2 .cse9 .cse16) (and .cse5 .cse6 .cse10 .cse15) (and .cse0 .cse5 .cse6 .cse12 (= ~a21~0 6)) (and .cse0 .cse2 .cse10 .cse21) (and (or (and .cse8 .cse0 .cse1 .cse5 .cse11) (and .cse8 .cse0 .cse5 .cse6 .cse7)) .cse22) (and .cse0 .cse2 (<= ~a12~0 586307) .cse4) (and .cse23 .cse13 (= ~a15~0 6)) (and .cse18 .cse0 .cse5 .cse10 .cse19 .cse7 .cse22))))) [2022-12-13 17:55:57,697 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2022-12-13 17:55:57,697 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2022-12-13 17:55:57,697 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-12-13 17:55:57,697 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-12-13 17:55:57,697 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-12-13 17:55:57,698 INFO L895 garLoopResultBuilder]: At program point calculate_output_returnLabel#1(lines 30 882) the Hoare annotation is: (let ((.cse20 (= 7 ~a15~0))) (let ((.cse9 (<= 10 ~a21~0)) (.cse17 (<= 9 ~a21~0)) (.cse0 (= ~a24~0 1)) (.cse5 (<= ~a15~0 8)) (.cse10 (<= ~a15~0 7)) (.cse19 (not .cse20))) (let ((.cse3 (let ((.cse24 (div (+ ~a12~0 (- 600066)) 5))) (or (<= (+ 14 .cse24) 0) (and (<= (+ .cse24 13) 0) (let ((.cse25 (+ ~a12~0 4))) (= .cse25 (* (div .cse25 5) 5))))))) (.cse14 (= ~a21~0 10)) (.cse16 (= ~a15~0 8)) (.cse15 (<= (+ 49 ~a12~0) 0)) (.cse12 (= 5 ~a15~0)) (.cse21 (<= ~a21~0 8)) (.cse1 (<= 7 ~a21~0)) (.cse11 (<= ~a21~0 7)) (.cse8 (<= ~a12~0 11)) (.cse6 (<= ~a21~0 6)) (.cse2 (<= 20 ~a12~0)) (.cse4 (<= 8 ~a15~0)) (.cse23 (= ~a21~0 9)) (.cse13 (or (and .cse0 .cse5 .cse10 .cse9) (and .cse17 .cse0 .cse5 .cse10 .cse19))) (.cse18 (<= ~a21~0 9)) (.cse7 (not (<= (+ ~a12~0 43) 0))) (.cse22 (<= 0 (+ 41 ~a12~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse4) (and .cse0 .cse1 .cse5 .cse10 .cse11) (and .cse12 .cse13 .cse14) (and .cse0 (= 7 ~a21~0) .cse15 .cse16) (and .cse17 .cse18 .cse0 .cse10 .cse15) (and .cse8 .cse17 .cse18 .cse0 .cse5 .cse19 .cse7) (and (= ~a21~0 8) .cse0 (<= (+ 44 ~a12~0) 0) .cse20) (and .cse8 .cse0 .cse5 .cse7 .cse9) (and .cse0 (<= 8 ~a21~0) .cse21 .cse3 .cse4) (and .cse13 .cse14 .cse20) (and .cse0 .cse5 .cse6 .cse10 .cse7 .cse22) (and (not .cse8) .cse0 .cse23 .cse20) (and .cse0 .cse5 .cse2 .cse9 .cse16) (and .cse5 .cse6 .cse10 .cse15) (and .cse0 .cse5 .cse6 .cse12 (= ~a21~0 6)) (and .cse0 .cse2 .cse10 .cse21) (and (or (and .cse8 .cse0 .cse1 .cse5 .cse11) (and .cse8 .cse0 .cse5 .cse6 .cse7)) .cse22) (and .cse0 .cse2 (<= ~a12~0 586307) .cse4) (and .cse23 .cse13 (= ~a15~0 6)) (and .cse18 .cse0 .cse5 .cse10 .cse19 .cse7 .cse22))))) [2022-12-13 17:55:57,698 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2022-12-13 17:55:57,698 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2022-12-13 17:55:57,698 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2022-12-13 17:55:57,698 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2022-12-13 17:55:57,698 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,698 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,698 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2022-12-13 17:55:57,698 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2022-12-13 17:55:57,698 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-12-13 17:55:57,698 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-12-13 17:55:57,698 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-12-13 17:55:57,701 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:57,702 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:55:57,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:55:57 BoogieIcfgContainer [2022-12-13 17:55:57,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:55:57,720 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:55:57,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:55:57,720 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:55:57,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:55:01" (3/4) ... [2022-12-13 17:55:57,722 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:55:57,734 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-13 17:55:57,735 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 17:55:57,735 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 17:55:57,736 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:55:57,795 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:55:57,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:55:57,795 INFO L158 Benchmark]: Toolchain (without parser) took 57526.43ms. Allocated memory was 130.0MB in the beginning and 1.1GB in the end (delta: 952.1MB). Free memory was 94.0MB in the beginning and 471.5MB in the end (delta: -377.5MB). Peak memory consumption was 576.9MB. Max. memory is 16.1GB. [2022-12-13 17:55:57,796 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 100.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:55:57,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.39ms. Allocated memory is still 130.0MB. Free memory was 94.0MB in the beginning and 61.2MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 17:55:57,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.76ms. Allocated memory is still 130.0MB. Free memory was 61.2MB in the beginning and 51.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 17:55:57,796 INFO L158 Benchmark]: Boogie Preprocessor took 80.37ms. Allocated memory is still 130.0MB. Free memory was 51.7MB in the beginning and 94.7MB in the end (delta: -43.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-12-13 17:55:57,796 INFO L158 Benchmark]: RCFGBuilder took 1012.62ms. Allocated memory was 130.0MB in the beginning and 169.9MB in the end (delta: 39.8MB). Free memory was 94.7MB in the beginning and 88.1MB in the end (delta: 6.6MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2022-12-13 17:55:57,796 INFO L158 Benchmark]: TraceAbstraction took 55917.01ms. Allocated memory was 169.9MB in the beginning and 1.1GB in the end (delta: 912.3MB). Free memory was 87.3MB in the beginning and 485.1MB in the end (delta: -397.9MB). Peak memory consumption was 770.0MB. Max. memory is 16.1GB. [2022-12-13 17:55:57,796 INFO L158 Benchmark]: Witness Printer took 75.48ms. Allocated memory is still 1.1GB. Free memory was 485.1MB in the beginning and 471.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 17:55:57,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 100.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.39ms. Allocated memory is still 130.0MB. Free memory was 94.0MB in the beginning and 61.2MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.76ms. Allocated memory is still 130.0MB. Free memory was 61.2MB in the beginning and 51.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.37ms. Allocated memory is still 130.0MB. Free memory was 51.7MB in the beginning and 94.7MB in the end (delta: -43.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1012.62ms. Allocated memory was 130.0MB in the beginning and 169.9MB in the end (delta: 39.8MB). Free memory was 94.7MB in the beginning and 88.1MB in the end (delta: 6.6MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. * TraceAbstraction took 55917.01ms. Allocated memory was 169.9MB in the beginning and 1.1GB in the end (delta: 912.3MB). Free memory was 87.3MB in the beginning and 485.1MB in the end (delta: -397.9MB). Peak memory consumption was 770.0MB. Max. memory is 16.1GB. * Witness Printer took 75.48ms. Allocated memory is still 1.1GB. Free memory was 485.1MB in the beginning and 471.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * 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: 131]: 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: 55.9s, OverallIterations: 29, TraceHistogramMax: 18, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2709 SdHoareTripleChecker+Valid, 13.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2709 mSDsluCounter, 2541 SdHoareTripleChecker+Invalid, 11.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 254 mSDsCounter, 1717 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19557 IncrementalHoareTripleChecker+Invalid, 21274 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1717 mSolverCounterUnsat, 2287 mSDtfsCounter, 19557 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10330 GetRequests, 10238 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6768occurred in iteration=15, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 29 MinimizatonAttempts, 6942 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 130 NumberOfFragments, 1051 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3010 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 30982 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 28.9s InterpolantComputationTime, 38304 NumberOfCodeBlocks, 38304 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 39087 ConstructedInterpolants, 0 QuantifiedInterpolants, 115002 SizeOfPredicates, 0 NumberOfNonLiveVariables, 11752 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 40 InterpolantComputations, 28 PerfectInterpolantSequences, 165112/168285 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 Derived loop invariant: ((((((((((((((((((((((((a24 == 1 && 7 <= a21) && 20 <= a12) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && a12 + 4 == (a12 + 4) / 5 * 5))) && 8 <= a15) || ((((a24 == 1 && a15 <= 8) && 20 <= a12) && a21 <= 6) && !(a12 + 43 <= 0))) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && 8 <= a15)) || ((((a24 == 1 && 7 <= a21) && a15 <= 8) && a15 <= 7) && a21 <= 7)) || ((5 == a15 && ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)))) && a21 == 10)) || (((a24 == 1 && 7 == a21) && 49 + a12 <= 0) && a15 == 8)) || ((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 7) && 49 + a12 <= 0)) || ((((((a12 <= 11 && 9 <= a21) && a21 <= 9) && a24 == 1) && a15 <= 8) && !(7 == a15)) && !(a12 + 43 <= 0))) || (((a21 == 8 && a24 == 1) && 44 + a12 <= 0) && 7 == a15)) || ((((a12 <= 11 && a24 == 1) && a15 <= 8) && !(a12 + 43 <= 0)) && 10 <= a21)) || ((((a24 == 1 && 8 <= a21) && a21 <= 8) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && a12 + 4 == (a12 + 4) / 5 * 5))) && 8 <= a15)) || ((((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15))) && a21 == 10) && 7 == a15)) || (((((a24 == 1 && a15 <= 8) && a21 <= 6) && a15 <= 7) && !(a12 + 43 <= 0)) && 0 <= 41 + a12)) || (((!(a12 <= 11) && a24 == 1) && a21 == 9) && 7 == a15)) || ((((a24 == 1 && a15 <= 8) && 20 <= a12) && 10 <= a21) && a15 == 8)) || (((a15 <= 8 && a21 <= 6) && a15 <= 7) && 49 + a12 <= 0)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && 5 == a15) && a21 == 6)) || (((a24 == 1 && 20 <= a12) && a15 <= 7) && a21 <= 8)) || ((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) || ((((a12 <= 11 && a24 == 1) && a15 <= 8) && a21 <= 6) && !(a12 + 43 <= 0))) && 0 <= 41 + a12)) || (((a24 == 1 && 20 <= a12) && a12 <= 586307) && 8 <= a15)) || ((a21 == 9 && ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)))) && a15 == 6)) || ((((((a21 <= 9 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)) && !(a12 + 43 <= 0)) && 0 <= 41 + a12) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a24 == 1 && 7 <= a21) && 20 <= a12) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && a12 + 4 == (a12 + 4) / 5 * 5))) && 8 <= a15) || ((((a24 == 1 && a15 <= 8) && 20 <= a12) && a21 <= 6) && !(a12 + 43 <= 0))) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && 8 <= a15)) || ((((a24 == 1 && 7 <= a21) && a15 <= 8) && a15 <= 7) && a21 <= 7)) || ((5 == a15 && ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)))) && a21 == 10)) || (((a24 == 1 && 7 == a21) && 49 + a12 <= 0) && a15 == 8)) || ((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 7) && 49 + a12 <= 0)) || ((((((a12 <= 11 && 9 <= a21) && a21 <= 9) && a24 == 1) && a15 <= 8) && !(7 == a15)) && !(a12 + 43 <= 0))) || (((a21 == 8 && a24 == 1) && 44 + a12 <= 0) && 7 == a15)) || ((((a12 <= 11 && a24 == 1) && a15 <= 8) && !(a12 + 43 <= 0)) && 10 <= a21)) || ((((a24 == 1 && 8 <= a21) && a21 <= 8) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && a12 + 4 == (a12 + 4) / 5 * 5))) && 8 <= a15)) || ((((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15))) && a21 == 10) && 7 == a15)) || (((((a24 == 1 && a15 <= 8) && a21 <= 6) && a15 <= 7) && !(a12 + 43 <= 0)) && 0 <= 41 + a12)) || (((!(a12 <= 11) && a24 == 1) && a21 == 9) && 7 == a15)) || ((((a24 == 1 && a15 <= 8) && 20 <= a12) && 10 <= a21) && a15 == 8)) || (((a15 <= 8 && a21 <= 6) && a15 <= 7) && 49 + a12 <= 0)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && 5 == a15) && a21 == 6)) || (((a24 == 1 && 20 <= a12) && a15 <= 7) && a21 <= 8)) || ((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) || ((((a12 <= 11 && a24 == 1) && a15 <= 8) && a21 <= 6) && !(a12 + 43 <= 0))) && 0 <= 41 + a12)) || (((a24 == 1 && 20 <= a12) && a12 <= 586307) && 8 <= a15)) || ((a21 == 9 && ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)))) && a15 == 6)) || ((((((a21 <= 9 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)) && !(a12 + 43 <= 0)) && 0 <= 41 + a12) RESULT: Ultimate proved your program to be correct! [2022-12-13 17:55:57,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf930bcc-2d20-488e-ad2e-56730e19cdb7/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