./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 507812183a4c101cb7344945334977285b221916337ee39c7956ea5651efd5cd --- 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-5e519f3 [2022-11-03 04:00:15,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:00:15,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:00:15,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:00:15,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:00:15,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:00:15,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:00:15,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:00:15,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:00:15,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:00:15,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:00:15,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:00:15,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:00:15,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:00:15,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:00:15,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:00:15,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:00:15,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:00:15,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:00:15,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:00:15,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:00:15,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:00:15,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:00:15,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:00:15,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:00:15,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:00:15,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:00:15,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:00:15,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:00:15,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:00:15,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:00:15,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:00:15,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:00:15,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:00:15,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:00:15,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:00:15,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:00:15,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:00:15,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:00:15,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:00:15,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:00:15,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:00:15,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:00:15,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:00:15,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:00:15,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:00:15,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:00:15,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:00:15,909 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:00:15,910 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:00:15,910 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:00:15,910 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:00:15,910 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:00:15,910 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:00:15,911 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:00:15,911 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:00:15,911 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:00:15,911 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:00:15,912 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:00:15,912 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:00:15,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:00:15,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:00:15,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:00:15,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:00:15,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:00:15,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:00:15,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:00:15,914 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:00:15,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:00:15,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:00:15,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:00:15,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:00:15,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:00:15,916 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:00:15,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:00:15,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:00:15,916 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:00:15,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:00:15,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:00:15,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:00:15,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 507812183a4c101cb7344945334977285b221916337ee39c7956ea5651efd5cd [2022-11-03 04:00:16,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:00:16,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:00:16,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:00:16,327 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:00:16,327 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:00:16,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal4.c [2022-11-03 04:00:16,423 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/data/b4dc9d57e/ed8e2ba7da7e41a5a4f99e5268150d38/FLAGa6535d3bc [2022-11-03 04:00:17,200 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:00:17,200 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal4.c [2022-11-03 04:00:17,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/data/b4dc9d57e/ed8e2ba7da7e41a5a4f99e5268150d38/FLAGa6535d3bc [2022-11-03 04:00:17,351 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/data/b4dc9d57e/ed8e2ba7da7e41a5a4f99e5268150d38 [2022-11-03 04:00:17,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:00:17,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:00:17,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:00:17,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:00:17,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:00:17,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:00:17" (1/1) ... [2022-11-03 04:00:17,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735c8369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:17, skipping insertion in model container [2022-11-03 04:00:17,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:00:17" (1/1) ... [2022-11-03 04:00:17,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:00:17,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:00:17,771 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal4.c[1107,1120] [2022-11-03 04:00:18,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:00:18,321 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:00:18,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal4.c[1107,1120] [2022-11-03 04:00:18,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:00:18,594 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:00:18,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18 WrapperNode [2022-11-03 04:00:18,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:00:18,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:00:18,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:00:18,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:00:18,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (1/1) ... [2022-11-03 04:00:18,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (1/1) ... [2022-11-03 04:00:19,021 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3092 [2022-11-03 04:00:19,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:00:19,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:00:19,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:00:19,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:00:19,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (1/1) ... [2022-11-03 04:00:19,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (1/1) ... [2022-11-03 04:00:19,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (1/1) ... [2022-11-03 04:00:19,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (1/1) ... [2022-11-03 04:00:19,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (1/1) ... [2022-11-03 04:00:19,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (1/1) ... [2022-11-03 04:00:19,360 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (1/1) ... [2022-11-03 04:00:19,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (1/1) ... [2022-11-03 04:00:19,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:00:19,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:00:19,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:00:19,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:00:19,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (1/1) ... [2022-11-03 04:00:19,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:00:19,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:00:19,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:00:19,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:00:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:00:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:00:20,356 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:00:20,358 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:00:32,550 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:00:53,055 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:00:53,056 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 04:00:53,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:00:53 BoogieIcfgContainer [2022-11-03 04:00:53,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:00:53,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:00:53,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:00:53,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:00:53,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:00:17" (1/3) ... [2022-11-03 04:00:53,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f08cf65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:00:53, skipping insertion in model container [2022-11-03 04:00:53,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:00:18" (2/3) ... [2022-11-03 04:00:53,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f08cf65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:00:53, skipping insertion in model container [2022-11-03 04:00:53,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:00:53" (3/3) ... [2022-11-03 04:00:53,072 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal4.c [2022-11-03 04:00:53,097 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:00:53,097 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:00:53,152 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:00:53,161 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=FINITE_AUTOMATA, 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;@6071cb00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:00:53,161 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:00:53,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:00:53,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 04:00:53,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:53,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 04:00:53,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:53,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:53,185 INFO L85 PathProgramCache]: Analyzing trace with hash 38518238, now seen corresponding path program 1 times [2022-11-03 04:00:53,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:53,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653448756] [2022-11-03 04:00:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:53,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:04:09,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 04:07:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:07:13,489 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 04:07:13,491 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 04:07:13,494 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:07:13,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:07:13,501 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 04:07:13,506 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:07:13,595 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 04:07:13,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:07:13 BoogieIcfgContainer [2022-11-03 04:07:13,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:07:13,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:07:13,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:07:13,640 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:07:13,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:00:53" (3/4) ... [2022-11-03 04:07:13,643 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 04:07:13,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:07:13,645 INFO L158 Benchmark]: Toolchain (without parser) took 416284.07ms. Allocated memory was 107.0MB in the beginning and 8.5GB in the end (delta: 8.4GB). Free memory was 66.3MB in the beginning and 7.2GB in the end (delta: -7.1GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-03 04:07:13,645 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:07:13,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1233.11ms. Allocated memory is still 107.0MB. Free memory was 66.2MB in the beginning and 50.2MB in the end (delta: 15.9MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2022-11-03 04:07:13,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 425.00ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 50.2MB in the beginning and 76.3MB in the end (delta: -26.1MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2022-11-03 04:07:13,647 INFO L158 Benchmark]: Boogie Preprocessor took 400.59ms. Allocated memory is still 159.4MB. Free memory was 76.1MB in the beginning and 74.8MB in the end (delta: 1.3MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2022-11-03 04:07:13,648 INFO L158 Benchmark]: RCFGBuilder took 33636.38ms. Allocated memory was 159.4MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 74.8MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 740.2MB. Max. memory is 16.1GB. [2022-11-03 04:07:13,649 INFO L158 Benchmark]: TraceAbstraction took 380576.35ms. Allocated memory was 6.9GB in the beginning and 8.5GB in the end (delta: 1.6GB). Free memory was 6.7GB in the beginning and 7.2GB in the end (delta: -491.1MB). Peak memory consumption was 3.9GB. Max. memory is 16.1GB. [2022-11-03 04:07:13,649 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 8.5GB. Free memory is still 7.2GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:07:13,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1233.11ms. Allocated memory is still 107.0MB. Free memory was 66.2MB in the beginning and 50.2MB in the end (delta: 15.9MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 425.00ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 50.2MB in the beginning and 76.3MB in the end (delta: -26.1MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 400.59ms. Allocated memory is still 159.4MB. Free memory was 76.1MB in the beginning and 74.8MB in the end (delta: 1.3MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. * RCFGBuilder took 33636.38ms. Allocated memory was 159.4MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 74.8MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 740.2MB. Max. memory is 16.1GB. * TraceAbstraction took 380576.35ms. Allocated memory was 6.9GB in the beginning and 8.5GB in the end (delta: 1.6GB). Free memory was 6.7GB in the beginning and 7.2GB in the end (delta: -491.1MB). Peak memory consumption was 3.9GB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 8.5GB. Free memory is still 7.2GB. There was no memory consumed. 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 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 257, overapproximation of shiftRight at line 1580, overapproximation of bitwiseAnd at line 206, overapproximation of bitwiseComplement at line 254, overapproximation of bitwiseXOr at line 273. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 2); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (2 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 8); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (8 - 1); [L34] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L35] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L37] const SORT_15 mask_SORT_15 = (SORT_15)-1 >> (sizeof(SORT_15) * 8 - 3); [L38] const SORT_15 msb_SORT_15 = (SORT_15)1 << (3 - 1); [L40] const SORT_22 mask_SORT_22 = (SORT_22)-1 >> (sizeof(SORT_22) * 8 - 5); [L41] const SORT_22 msb_SORT_22 = (SORT_22)1 << (5 - 1); [L43] const SORT_187 mask_SORT_187 = (SORT_187)-1 >> (sizeof(SORT_187) * 8 - 4); [L44] const SORT_187 msb_SORT_187 = (SORT_187)1 << (4 - 1); [L46] const SORT_220 mask_SORT_220 = (SORT_220)-1 >> (sizeof(SORT_220) * 8 - 6); [L47] const SORT_220 msb_SORT_220 = (SORT_220)1 << (6 - 1); [L49] const SORT_222 mask_SORT_222 = (SORT_222)-1 >> (sizeof(SORT_222) * 8 - 7); [L50] const SORT_222 msb_SORT_222 = (SORT_222)1 << (7 - 1); [L52] const SORT_225 mask_SORT_225 = (SORT_225)-1 >> (sizeof(SORT_225) * 8 - 9); [L53] const SORT_225 msb_SORT_225 = (SORT_225)1 << (9 - 1); [L55] const SORT_227 mask_SORT_227 = (SORT_227)-1 >> (sizeof(SORT_227) * 8 - 10); [L56] const SORT_227 msb_SORT_227 = (SORT_227)1 << (10 - 1); [L58] const SORT_229 mask_SORT_229 = (SORT_229)-1 >> (sizeof(SORT_229) * 8 - 11); [L59] const SORT_229 msb_SORT_229 = (SORT_229)1 << (11 - 1); [L61] const SORT_231 mask_SORT_231 = (SORT_231)-1 >> (sizeof(SORT_231) * 8 - 12); [L62] const SORT_231 msb_SORT_231 = (SORT_231)1 << (12 - 1); [L64] const SORT_3 var_42 = 0; [L65] const SORT_1 var_46 = 2; [L66] const SORT_5 var_49 = 0; [L67] const SORT_1 var_55 = 0; [L68] const SORT_15 var_64 = 7; [L69] const SORT_15 var_65 = 0; [L70] const SORT_1 var_76 = 3; [L71] const SORT_22 var_81 = 17; [L72] const SORT_22 var_83 = 21; [L73] const SORT_7 var_87 = 0; [L74] const SORT_3 var_138 = 1; [L75] const SORT_15 var_139 = 1; [L76] const SORT_15 var_142 = 3; [L77] const SORT_15 var_145 = 2; [L78] const SORT_15 var_149 = 5; [L79] const SORT_15 var_154 = 6; [L80] const SORT_15 var_158 = 4; [L81] const SORT_1 var_164 = 1; [L82] const SORT_22 var_177 = 11; [L83] const SORT_22 var_179 = 10; [L84] const SORT_22 var_181 = 2; [L85] const SORT_22 var_183 = 9; [L86] const SORT_22 var_196 = 20; [L87] const SORT_22 var_198 = 19; [L88] const SORT_22 var_200 = 18; [L89] const SORT_22 var_202 = 16; [L90] const SORT_22 var_204 = 15; [L91] const SORT_22 var_206 = 14; [L92] const SORT_22 var_208 = 8; [L93] const SORT_22 var_210 = 6; [L94] const SORT_22 var_212 = 3; [L95] const SORT_22 var_214 = 5; [L96] const SORT_22 var_234 = 4; [L97] const SORT_22 var_236 = 1; [L98] const SORT_22 var_246 = 7; [L99] const SORT_22 var_264 = 13; [L100] const SORT_22 var_272 = 12; [L101] const SORT_22 var_293 = 23; [L102] const SORT_22 var_296 = 22; [L103] const SORT_22 var_305 = 25; [L104] const SORT_22 var_308 = 27; [L105] const SORT_22 var_311 = 26; [L106] const SORT_22 var_315 = 29; [L107] const SORT_22 var_318 = 31; [L108] const SORT_22 var_321 = 30; [L109] const SORT_22 var_325 = 28; [L110] const SORT_22 var_331 = 24; [L111] const SORT_220 var_354 = 0; [L112] const SORT_22 var_384 = 0; [L113] const SORT_187 var_413 = 1; [L114] const SORT_187 var_416 = 3; [L115] const SORT_187 var_419 = 2; [L116] const SORT_187 var_423 = 5; [L117] const SORT_187 var_426 = 7; [L118] const SORT_187 var_429 = 6; [L119] const SORT_187 var_433 = 4; [L120] const SORT_187 var_439 = 9; [L121] const SORT_187 var_442 = 11; [L122] const SORT_187 var_445 = 10; [L123] const SORT_187 var_449 = 13; [L124] const SORT_187 var_452 = 15; [L125] const SORT_187 var_455 = 14; [L126] const SORT_187 var_459 = 12; [L127] const SORT_187 var_465 = 8; [L128] const SORT_5 var_667 = 3; [L130] SORT_1 input_2; [L131] SORT_3 input_4; [L132] SORT_5 input_6; [L133] SORT_7 input_8; [L134] SORT_3 input_9; [L135] SORT_3 input_10; [L136] SORT_3 input_11; [L137] SORT_3 input_12; [L138] SORT_3 input_13; [L139] SORT_1 input_14; [L140] SORT_15 input_16; [L141] SORT_1 input_17; [L142] SORT_3 input_18; [L143] SORT_3 input_19; [L144] SORT_3 input_20; [L145] SORT_3 input_21; [L146] SORT_22 input_23; [L147] SORT_1 input_24; [L148] SORT_7 input_25; [L149] SORT_15 input_26; [L150] SORT_5 input_27; [L151] SORT_1 input_28; [L152] SORT_3 input_29; [L153] SORT_5 input_30; [L154] SORT_3 input_31; [L155] SORT_5 input_32; [L156] SORT_5 input_33; [L157] SORT_7 input_34; [L158] SORT_7 input_35; [L159] SORT_15 input_36; [L160] SORT_15 input_37; [L161] SORT_1 input_38; [L162] SORT_5 input_39; [L163] SORT_3 input_40; [L164] SORT_1 input_41; [L166] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L167] SORT_5 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L168] SORT_3 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L169] SORT_1 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L170] SORT_15 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_15; [L171] SORT_7 state_88 = __VERIFIER_nondet_uint() & mask_SORT_7; [L172] SORT_5 state_133 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L173] SORT_3 state_509 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L174] SORT_5 state_528 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L175] SORT_15 state_534 = __VERIFIER_nondet_uchar() & mask_SORT_15; [L176] SORT_7 state_547 = __VERIFIER_nondet_uint() & mask_SORT_7; [L177] SORT_1 state_615 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L179] SORT_3 init_44_arg_1 = var_42; [L180] state_43 = init_44_arg_1 [L181] SORT_5 init_51_arg_1 = var_49; [L182] state_50 = init_51_arg_1 [L183] SORT_3 init_53_arg_1 = var_42; [L184] state_52 = init_53_arg_1 [L185] SORT_1 init_57_arg_1 = var_55; [L186] state_56 = init_57_arg_1 [L187] SORT_15 init_67_arg_1 = var_65; [L188] state_66 = init_67_arg_1 [L189] SORT_7 init_89_arg_1 = var_87; [L190] state_88 = init_89_arg_1 [L191] SORT_5 init_134_arg_1 = var_49; [L192] state_133 = init_134_arg_1 [L193] SORT_3 init_510_arg_1 = var_42; [L194] state_509 = init_510_arg_1 [L195] SORT_5 init_529_arg_1 = var_49; [L196] state_528 = init_529_arg_1 [L197] SORT_15 init_535_arg_1 = var_65; [L198] state_534 = init_535_arg_1 [L199] SORT_7 init_548_arg_1 = var_87; [L200] state_547 = init_548_arg_1 [L201] SORT_1 init_616_arg_1 = var_55; [L202] state_615 = init_616_arg_1 VAL [init_134_arg_1=0, init_44_arg_1=0, init_510_arg_1=0, init_51_arg_1=0, init_529_arg_1=0, init_535_arg_1=0, init_53_arg_1=0, init_548_arg_1=0, init_57_arg_1=0, init_616_arg_1=0, init_67_arg_1=0, init_89_arg_1=0, mask_SORT_1=3, mask_SORT_15=7, mask_SORT_187=15, mask_SORT_22=31, mask_SORT_220=63, mask_SORT_222=127, mask_SORT_225=511, mask_SORT_227=1023, mask_SORT_229=2047, mask_SORT_231=4095, mask_SORT_3=1, mask_SORT_5=255, mask_SORT_7=4294967295, msb_SORT_1=2, msb_SORT_15=4, msb_SORT_187=8, msb_SORT_22=16, msb_SORT_220=32, msb_SORT_222=64, msb_SORT_225=256, msb_SORT_227=512, msb_SORT_229=1024, msb_SORT_231=2048, msb_SORT_3=1, msb_SORT_5=128, msb_SORT_7=2147483648, state_133=0, state_43=0, state_50=0, state_509=0, state_52=0, state_528=0, state_534=0, state_547=0, state_56=0, state_615=0, state_66=0, state_88=0, var_138=1, var_139=1, var_142=3, var_145=2, var_149=5, var_154=6, var_158=4, var_164=1, var_177=11, var_179=10, var_181=2, var_183=9, var_196=20, var_198=19, var_200=18, var_202=16, var_204=15, var_206=14, var_208=8, var_210=6, var_212=3, var_214=5, var_234=4, var_236=1, var_246=7, var_264=13, var_272=12, var_293=23, var_296=22, var_305=25, var_308=27, var_311=26, var_315=29, var_318=31, var_321=30, var_325=28, var_331=24, var_354=0, var_384=0, var_413=1, var_416=3, var_419=2, var_42=0, var_423=5, var_426=7, var_429=6, var_433=4, var_439=9, var_442=11, var_445=10, var_449=13, var_452=15, var_455=14, var_459=12, var_46=2, var_465=8, var_49=0, var_55=0, var_64=7, var_65=0, var_667=3, var_76=3, var_81=17, var_83=21, var_87=0] [L205] input_2 = __VERIFIER_nondet_uchar() [L206] input_2 = input_2 & mask_SORT_1 [L207] input_4 = __VERIFIER_nondet_uchar() [L208] input_6 = __VERIFIER_nondet_uchar() [L209] input_8 = __VERIFIER_nondet_uint() [L210] input_9 = __VERIFIER_nondet_uchar() [L211] input_9 = input_9 & mask_SORT_3 [L212] input_10 = __VERIFIER_nondet_uchar() [L213] input_10 = input_10 & mask_SORT_3 [L214] input_11 = __VERIFIER_nondet_uchar() [L215] input_12 = __VERIFIER_nondet_uchar() [L216] input_12 = input_12 & mask_SORT_3 [L217] input_13 = __VERIFIER_nondet_uchar() [L218] input_13 = input_13 & mask_SORT_3 [L219] input_14 = __VERIFIER_nondet_uchar() [L220] input_14 = input_14 & mask_SORT_1 [L221] input_16 = __VERIFIER_nondet_uchar() [L222] input_16 = input_16 & mask_SORT_15 [L223] input_17 = __VERIFIER_nondet_uchar() [L224] input_17 = input_17 & mask_SORT_1 [L225] input_18 = __VERIFIER_nondet_uchar() [L226] input_18 = input_18 & mask_SORT_3 [L227] input_19 = __VERIFIER_nondet_uchar() [L228] input_20 = __VERIFIER_nondet_uchar() [L229] input_21 = __VERIFIER_nondet_uchar() [L230] input_21 = input_21 & mask_SORT_3 [L231] input_23 = __VERIFIER_nondet_uchar() [L232] input_23 = input_23 & mask_SORT_22 [L233] input_24 = __VERIFIER_nondet_uchar() [L234] input_25 = __VERIFIER_nondet_uint() [L235] input_26 = __VERIFIER_nondet_uchar() [L236] input_27 = __VERIFIER_nondet_uchar() [L237] input_28 = __VERIFIER_nondet_uchar() [L238] input_29 = __VERIFIER_nondet_uchar() [L239] input_30 = __VERIFIER_nondet_uchar() [L240] input_31 = __VERIFIER_nondet_uchar() [L241] input_32 = __VERIFIER_nondet_uchar() [L242] input_33 = __VERIFIER_nondet_uchar() [L243] input_34 = __VERIFIER_nondet_uint() [L244] input_35 = __VERIFIER_nondet_uint() [L245] input_36 = __VERIFIER_nondet_uchar() [L246] input_37 = __VERIFIER_nondet_uchar() [L247] input_38 = __VERIFIER_nondet_uchar() [L248] input_39 = __VERIFIER_nondet_uchar() [L249] input_40 = __VERIFIER_nondet_uchar() [L250] input_41 = __VERIFIER_nondet_uchar() [L253] SORT_3 var_45_arg_0 = state_43; [L254] SORT_3 var_45 = ~var_45_arg_0; [L255] SORT_3 var_520_arg_0 = input_4; [L256] SORT_3 var_520_arg_1 = input_21; [L257] SORT_1 var_520 = ((SORT_1)var_520_arg_0 << 1) | var_520_arg_1; [L258] var_520 = var_520 & mask_SORT_1 [L259] SORT_1 var_521_arg_0 = var_520; [L260] SORT_3 var_521 = var_521_arg_0 != 0; [L261] SORT_3 var_522_arg_0 = var_521; [L262] SORT_3 var_522 = ~var_522_arg_0; [L263] SORT_1 var_518_arg_0 = input_2; [L264] SORT_1 var_518_arg_1 = var_164; [L265] SORT_3 var_518 = var_518_arg_0 == var_518_arg_1; [L266] SORT_3 var_519_arg_0 = var_518; [L267] SORT_3 var_519 = ~var_519_arg_0; [L268] SORT_3 var_99_arg_0 = input_19; [L269] SORT_3 var_99_arg_1 = input_18; [L270] SORT_1 var_99 = ((SORT_1)var_99_arg_0 << 1) | var_99_arg_1; [L271] var_99 = var_99 & mask_SORT_1 [L272] SORT_1 var_100_arg_0 = var_99; [L273] var_100_arg_0 ^= var_100_arg_0 >> 4 [L274] var_100_arg_0 ^= var_100_arg_0 >> 2 [L275] var_100_arg_0 ^= var_100_arg_0 >> 1 [L276] SORT_3 var_100 = var_100_arg_0; [L277] var_100 = var_100 & mask_SORT_3 [L278] SORT_15 var_362_arg_0 = input_16; [L279] SORT_15 var_362_arg_1 = var_145; [L280] SORT_3 var_362 = var_362_arg_0 == var_362_arg_1; [L281] SORT_15 var_361_arg_0 = input_16; [L282] SORT_15 var_361_arg_1 = var_139; [L283] SORT_3 var_361 = var_361_arg_0 == var_361_arg_1; [L284] SORT_15 var_360_arg_0 = input_16; [L285] SORT_15 var_360_arg_1 = var_158; [L286] SORT_3 var_360 = var_360_arg_0 == var_360_arg_1; [L287] SORT_15 var_359_arg_0 = input_16; [L288] SORT_15 var_359_arg_1 = var_149; [L289] SORT_3 var_359 = var_359_arg_0 == var_359_arg_1; [L290] SORT_3 var_363_arg_0 = var_360; [L291] SORT_3 var_363_arg_1 = var_359; [L292] SORT_1 var_363 = ((SORT_1)var_363_arg_0 << 1) | var_363_arg_1; [L293] var_363 = var_363 & mask_SORT_1 [L294] SORT_3 var_364_arg_0 = var_361; [L295] SORT_1 var_364_arg_1 = var_363; [L296] SORT_15 var_364 = ((SORT_15)var_364_arg_0 << 2) | var_364_arg_1; [L297] var_364 = var_364 & mask_SORT_15 [L298] SORT_3 var_365_arg_0 = var_362; [L299] SORT_15 var_365_arg_1 = var_364; [L300] SORT_187 var_365 = ((SORT_187)var_365_arg_0 << 3) | var_365_arg_1; [L301] var_365 = var_365 & mask_SORT_187 [L302] SORT_187 var_366_arg_0 = var_365; [L303] SORT_3 var_366 = var_366_arg_0 != 0; [L304] SORT_1 var_165_arg_0 = input_17; [L305] SORT_1 var_165_arg_1 = var_164; [L306] SORT_3 var_165 = var_165_arg_0 == var_165_arg_1; [L307] SORT_15 var_155_arg_0 = input_16; [L308] SORT_15 var_155_arg_1 = var_154; [L309] SORT_3 var_155 = var_155_arg_0 == var_155_arg_1; [L310] SORT_15 var_152_arg_0 = input_16; [L311] SORT_15 var_152_arg_1 = var_64; [L312] SORT_3 var_152 = var_152_arg_0 == var_152_arg_1; [L313] SORT_3 var_156_arg_0 = var_155; [L314] SORT_3 var_156_arg_1 = var_152; [L315] SORT_3 var_156 = var_156_arg_0 | var_156_arg_1; [L316] var_156 = var_156 & mask_SORT_3 [L317] SORT_15 var_150_arg_0 = input_16; [L318] SORT_15 var_150_arg_1 = var_149; [L319] SORT_3 var_150 = var_150_arg_0 == var_150_arg_1; [L320] SORT_15 var_159_arg_0 = input_16; [L321] SORT_15 var_159_arg_1 = var_158; [L322] SORT_3 var_159 = var_159_arg_0 == var_159_arg_1; [L323] SORT_3 var_160_arg_0 = var_150; [L324] SORT_3 var_160_arg_1 = var_159; [L325] SORT_1 var_160 = ((SORT_1)var_160_arg_0 << 1) | var_160_arg_1; [L326] var_160 = var_160 & mask_SORT_1 [L327] SORT_3 var_161_arg_0 = var_156; [L328] SORT_1 var_161_arg_1 = var_160; [L329] SORT_15 var_161 = ((SORT_15)var_161_arg_0 << 2) | var_161_arg_1; [L330] var_161 = var_161 & mask_SORT_15 [L331] SORT_15 var_162_arg_0 = var_161; [L332] SORT_3 var_162 = var_162_arg_0 != 0; [L333] SORT_3 var_153_arg_0 = var_152; [L334] SORT_3 var_153_arg_1 = var_138; [L335] SORT_3 var_153_arg_2 = var_138; [L336] EXPR var_153_arg_0 ? var_153_arg_1 : var_153_arg_2 [L336] SORT_3 var_153 = var_153_arg_0 ? var_153_arg_1 : var_153_arg_2; [L337] SORT_3 var_151_arg_0 = var_150; [L338] SORT_3 var_151_arg_1 = var_42; [L339] SORT_3 var_151_arg_2 = var_42; [L340] EXPR var_151_arg_0 ? var_151_arg_1 : var_151_arg_2 [L340] SORT_3 var_151 = var_151_arg_0 ? var_151_arg_1 : var_151_arg_2; [L341] SORT_3 var_157_arg_0 = var_156; [L342] SORT_3 var_157_arg_1 = var_153; [L343] SORT_3 var_157_arg_2 = var_151; [L344] EXPR var_157_arg_0 ? var_157_arg_1 : var_157_arg_2 [L344] SORT_3 var_157 = var_157_arg_0 ? var_157_arg_1 : var_157_arg_2; [L345] SORT_15 var_146_arg_0 = input_16; [L346] SORT_15 var_146_arg_1 = var_145; [L347] SORT_3 var_146 = var_146_arg_0 == var_146_arg_1; [L348] SORT_15 var_143_arg_0 = input_16; [L349] SORT_15 var_143_arg_1 = var_142; [L350] SORT_3 var_143 = var_143_arg_0 == var_143_arg_1; [L351] SORT_3 var_147_arg_0 = var_146; [L352] SORT_3 var_147_arg_1 = var_143; [L353] SORT_3 var_147 = var_147_arg_0 | var_147_arg_1; [L354] var_147 = var_147 & mask_SORT_3 [L355] SORT_3 var_144_arg_0 = var_143; [L356] SORT_3 var_144_arg_1 = var_138; [L357] SORT_3 var_144_arg_2 = var_42; [L358] EXPR var_144_arg_0 ? var_144_arg_1 : var_144_arg_2 [L358] SORT_3 var_144 = var_144_arg_0 ? var_144_arg_1 : var_144_arg_2; [L359] SORT_15 var_140_arg_0 = input_16; [L360] SORT_15 var_140_arg_1 = var_139; [L361] SORT_3 var_140 = var_140_arg_0 == var_140_arg_1; [L362] SORT_3 var_141_arg_0 = var_140; [L363] SORT_3 var_141_arg_1 = var_42; [L364] SORT_3 var_141_arg_2 = var_138; [L365] EXPR var_141_arg_0 ? var_141_arg_1 : var_141_arg_2 [L365] SORT_3 var_141 = var_141_arg_0 ? var_141_arg_1 : var_141_arg_2; [L366] SORT_3 var_148_arg_0 = var_147; [L367] SORT_3 var_148_arg_1 = var_144; [L368] SORT_3 var_148_arg_2 = var_141; [L369] EXPR var_148_arg_0 ? var_148_arg_1 : var_148_arg_2 [L369] SORT_3 var_148 = var_148_arg_0 ? var_148_arg_1 : var_148_arg_2; [L370] SORT_3 var_163_arg_0 = var_162; [L371] SORT_3 var_163_arg_1 = var_157; [L372] SORT_3 var_163_arg_2 = var_148; [L373] EXPR var_163_arg_0 ? var_163_arg_1 : var_163_arg_2 [L373] SORT_3 var_163 = var_163_arg_0 ? var_163_arg_1 : var_163_arg_2; [L374] var_163 = var_163 & mask_SORT_3 [L375] SORT_1 var_94_arg_0 = input_17; [L376] SORT_1 var_94_arg_1 = var_46; [L377] SORT_3 var_94 = var_94_arg_0 == var_94_arg_1; [L378] SORT_3 var_356_arg_0 = var_165; [L379] SORT_3 var_356_arg_1 = var_94; [L380] SORT_1 var_356 = ((SORT_1)var_356_arg_0 << 1) | var_356_arg_1; [L381] var_356 = var_356 & mask_SORT_1 [L382] SORT_1 var_357_arg_0 = var_356; [L383] SORT_3 var_357 = var_357_arg_0 != 0; [L384] SORT_3 var_358_arg_0 = var_163; [L385] SORT_3 var_358_arg_1 = var_357; [L386] SORT_3 var_358_arg_2 = var_42; [L387] EXPR var_358_arg_0 ? var_358_arg_1 : var_358_arg_2 [L387] SORT_3 var_358 = var_358_arg_0 ? var_358_arg_1 : var_358_arg_2; [L388] SORT_3 var_367_arg_0 = var_366; [L389] SORT_3 var_367_arg_1 = var_165; [L390] SORT_3 var_367_arg_2 = var_358; [L391] EXPR var_367_arg_0 ? var_367_arg_1 : var_367_arg_2 [L391] SORT_3 var_367 = var_367_arg_0 ? var_367_arg_1 : var_367_arg_2; [L392] SORT_1 var_109_arg_0 = input_14; [L393] SORT_1 var_109_arg_1 = var_76; [L394] SORT_3 var_109 = var_109_arg_0 == var_109_arg_1; [L395] SORT_3 var_368_arg_0 = var_367; [L396] SORT_3 var_368_arg_1 = var_109; [L397] SORT_1 var_368 = ((SORT_1)var_368_arg_0 << 1) | var_368_arg_1; [L398] var_368 = var_368 & mask_SORT_1 [L399] SORT_3 var_369_arg_0 = var_100; [L400] SORT_1 var_369_arg_1 = var_368; [L401] SORT_15 var_369 = ((SORT_15)var_369_arg_0 << 2) | var_369_arg_1; [L402] var_369 = var_369 & mask_SORT_15 [L403] SORT_15 var_370_arg_0 = var_369; [L404] SORT_3 var_370 = var_370_arg_0 != 0; [L405] SORT_3 var_371_arg_0 = input_20; [L406] SORT_3 var_371_arg_1 = var_370; [L407] SORT_1 var_371 = ((SORT_1)var_371_arg_0 << 1) | var_371_arg_1; [L408] var_371 = var_371 & mask_SORT_1 [L409] SORT_1 var_372_arg_0 = var_371; [L410] SORT_3 var_372 = var_372_arg_0 == mask_SORT_1; [L411] SORT_3 var_58_arg_0 = state_52; [L412] SORT_1 var_58_arg_1 = state_56; [L413] SORT_1 var_58_arg_2 = input_28; [L414] EXPR var_58_arg_0 ? var_58_arg_1 : var_58_arg_2 [L414] SORT_1 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L415] SORT_1 var_61_arg_0 = var_58; [L416] SORT_3 var_61 = var_61_arg_0 >> 0; [L417] var_61 = var_61 & mask_SORT_3 [L418] SORT_1 var_59_arg_0 = var_58; [L419] SORT_3 var_59 = var_59_arg_0 >> 1; [L420] var_59 = var_59 & mask_SORT_3 [L421] SORT_3 var_511_arg_0 = state_52; [L422] SORT_3 var_511_arg_1 = state_509; [L423] SORT_3 var_511_arg_2 = input_29; [L424] EXPR var_511_arg_0 ? var_511_arg_1 : var_511_arg_2 [L424] SORT_3 var_511 = var_511_arg_0 ? var_511_arg_1 : var_511_arg_2; [L425] SORT_3 var_512_arg_0 = var_59; [L426] SORT_3 var_512_arg_1 = var_511; [L427] SORT_3 var_512_arg_2 = var_42; [L428] EXPR var_512_arg_0 ? var_512_arg_1 : var_512_arg_2 [L428] SORT_3 var_512 = var_512_arg_0 ? var_512_arg_1 : var_512_arg_2; [L429] SORT_3 var_513_arg_0 = var_61; [L430] SORT_3 var_513_arg_1 = var_42; [L431] SORT_3 var_513_arg_2 = var_512; [L432] EXPR var_513_arg_0 ? var_513_arg_1 : var_513_arg_2 [L432] SORT_3 var_513 = var_513_arg_0 ? var_513_arg_1 : var_513_arg_2; [L433] var_513 = var_513 & mask_SORT_3 [L434] SORT_3 var_514_arg_0 = var_372; [L435] SORT_3 var_514_arg_1 = var_513; [L436] SORT_1 var_514 = ((SORT_1)var_514_arg_0 << 1) | var_514_arg_1; [L437] var_514 = var_514 & mask_SORT_1 [L438] SORT_1 var_515_arg_0 = var_514; [L439] SORT_3 var_515 = var_515_arg_0 != 0; [L440] SORT_3 var_110_arg_0 = var_109; [L441] SORT_3 var_110 = ~var_110_arg_0; [L442] var_110 = var_110 & mask_SORT_3 [L443] SORT_3 var_516_arg_0 = var_515; [L444] SORT_3 var_516_arg_1 = var_110; [L445] SORT_1 var_516 = ((SORT_1)var_516_arg_0 << 1) | var_516_arg_1; [L446] var_516 = var_516 & mask_SORT_1 [L447] SORT_1 var_517_arg_0 = var_516; [L448] SORT_3 var_517 = var_517_arg_0 == mask_SORT_1; [L449] SORT_3 var_523_arg_0 = var_519; [L450] SORT_3 var_523_arg_1 = var_517; [L451] SORT_1 var_523 = ((SORT_1)var_523_arg_0 << 1) | var_523_arg_1; [L452] var_523 = var_523 & mask_SORT_1 [L453] SORT_3 var_524_arg_0 = var_522; [L454] SORT_1 var_524_arg_1 = var_523; [L455] SORT_15 var_524 = ((SORT_15)var_524_arg_0 << 2) | var_524_arg_1; [L456] var_524 = var_524 & mask_SORT_15 [L457] SORT_15 var_525_arg_0 = var_524; [L458] SORT_3 var_525 = var_525_arg_0 == mask_SORT_15; [L459] SORT_1 var_47_arg_0 = input_2; [L460] SORT_1 var_47_arg_1 = var_46; [L461] SORT_3 var_47 = var_47_arg_0 == var_47_arg_1; [L462] SORT_3 var_503_arg_0 = var_47; [L463] SORT_3 var_503_arg_1 = var_100; [L464] SORT_1 var_503 = ((SORT_1)var_503_arg_0 << 1) | var_503_arg_1; [L465] var_503 = var_503 & mask_SORT_1 [L466] SORT_1 var_504_arg_0 = var_503; [L467] SORT_3 var_504 = var_504_arg_0 == mask_SORT_1; [L468] SORT_22 var_322_arg_0 = input_23; [L469] SORT_22 var_322_arg_1 = var_321; [L470] SORT_3 var_322 = var_322_arg_0 == var_322_arg_1; [L471] SORT_22 var_319_arg_0 = input_23; [L472] SORT_22 var_319_arg_1 = var_318; [L473] SORT_3 var_319 = var_319_arg_0 == var_319_arg_1; [L474] SORT_3 var_323_arg_0 = var_322; [L475] SORT_3 var_323_arg_1 = var_319; [L476] SORT_3 var_323 = var_323_arg_0 | var_323_arg_1; [L477] var_323 = var_323 & mask_SORT_3 [L478] SORT_22 var_316_arg_0 = input_23; [L479] SORT_22 var_316_arg_1 = var_315; [L480] SORT_3 var_316 = var_316_arg_0 == var_316_arg_1; [L481] SORT_22 var_326_arg_0 = input_23; [L482] SORT_22 var_326_arg_1 = var_325; [L483] SORT_3 var_326 = var_326_arg_0 == var_326_arg_1; [L484] SORT_3 var_327_arg_0 = var_316; [L485] SORT_3 var_327_arg_1 = var_326; [L486] SORT_1 var_327 = ((SORT_1)var_327_arg_0 << 1) | var_327_arg_1; [L487] var_327 = var_327 & mask_SORT_1 [L488] SORT_3 var_328_arg_0 = var_323; [L489] SORT_1 var_328_arg_1 = var_327; [L490] SORT_15 var_328 = ((SORT_15)var_328_arg_0 << 2) | var_328_arg_1; [L491] var_328 = var_328 & mask_SORT_15 [L492] SORT_15 var_329_arg_0 = var_328; [L493] SORT_3 var_329 = var_329_arg_0 != 0; [L494] SORT_22 var_312_arg_0 = input_23; [L495] SORT_22 var_312_arg_1 = var_311; [L496] SORT_3 var_312 = var_312_arg_0 == var_312_arg_1; [L497] SORT_22 var_309_arg_0 = input_23; [L498] SORT_22 var_309_arg_1 = var_308; [L499] SORT_3 var_309 = var_309_arg_0 == var_309_arg_1; [L500] SORT_3 var_313_arg_0 = var_312; [L501] SORT_3 var_313_arg_1 = var_309; [L502] SORT_3 var_313 = var_313_arg_0 | var_313_arg_1; [L503] var_313 = var_313 & mask_SORT_3 [L504] SORT_22 var_306_arg_0 = input_23; [L505] SORT_22 var_306_arg_1 = var_305; [L506] SORT_3 var_306 = var_306_arg_0 == var_306_arg_1; [L507] SORT_22 var_332_arg_0 = input_23; [L508] SORT_22 var_332_arg_1 = var_331; [L509] SORT_3 var_332 = var_332_arg_0 == var_332_arg_1; [L510] SORT_3 var_333_arg_0 = var_306; [L511] SORT_3 var_333_arg_1 = var_332; [L512] SORT_1 var_333 = ((SORT_1)var_333_arg_0 << 1) | var_333_arg_1; [L513] var_333 = var_333 & mask_SORT_1 [L514] SORT_3 var_334_arg_0 = var_313; [L515] SORT_1 var_334_arg_1 = var_333; [L516] SORT_15 var_334 = ((SORT_15)var_334_arg_0 << 2) | var_334_arg_1; [L517] var_334 = var_334 & mask_SORT_15 [L518] SORT_3 var_335_arg_0 = var_329; [L519] SORT_15 var_335_arg_1 = var_334; [L520] SORT_187 var_335 = ((SORT_187)var_335_arg_0 << 3) | var_335_arg_1; [L521] var_335 = var_335 & mask_SORT_187 [L522] SORT_187 var_336_arg_0 = var_335; [L523] SORT_3 var_336 = var_336_arg_0 != 0; [L524] SORT_22 var_297_arg_0 = input_23; [L525] SORT_22 var_297_arg_1 = var_296; [L526] SORT_3 var_297 = var_297_arg_0 == var_297_arg_1; [L527] SORT_22 var_294_arg_0 = input_23; [L528] SORT_22 var_294_arg_1 = var_293; [L529] SORT_3 var_294 = var_294_arg_0 == var_294_arg_1; [L530] SORT_3 var_298_arg_0 = var_297; [L531] SORT_3 var_298_arg_1 = var_294; [L532] SORT_3 var_298 = var_298_arg_0 | var_298_arg_1; [L533] var_298 = var_298 & mask_SORT_3 [L534] SORT_22 var_291_arg_0 = input_23; [L535] SORT_22 var_291_arg_1 = var_83; [L536] SORT_3 var_291 = var_291_arg_0 == var_291_arg_1; [L537] SORT_22 var_300_arg_0 = input_23; [L538] SORT_22 var_300_arg_1 = var_196; [L539] SORT_3 var_300 = var_300_arg_0 == var_300_arg_1; [L540] SORT_3 var_301_arg_0 = var_291; [L541] SORT_3 var_301_arg_1 = var_300; [L542] SORT_1 var_301 = ((SORT_1)var_301_arg_0 << 1) | var_301_arg_1; [L543] var_301 = var_301 & mask_SORT_1 [L544] SORT_3 var_302_arg_0 = var_298; [L545] SORT_1 var_302_arg_1 = var_301; [L546] SORT_15 var_302 = ((SORT_15)var_302_arg_0 << 2) | var_302_arg_1; [L547] var_302 = var_302 & mask_SORT_15 [L548] SORT_15 var_303_arg_0 = var_302; [L549] SORT_3 var_303 = var_303_arg_0 != 0; [L550] SORT_22 var_288_arg_0 = input_23; [L551] SORT_22 var_288_arg_1 = var_200; [L552] SORT_3 var_288 = var_288_arg_0 == var_288_arg_1; [L553] SORT_22 var_286_arg_0 = input_23; [L554] SORT_22 var_286_arg_1 = var_198; [L555] SORT_3 var_286 = var_286_arg_0 == var_286_arg_1; [L556] SORT_3 var_289_arg_0 = var_288; [L557] SORT_3 var_289_arg_1 = var_286; [L558] SORT_3 var_289 = var_289_arg_0 | var_289_arg_1; [L559] var_289 = var_289 & mask_SORT_3 [L560] SORT_22 var_284_arg_0 = input_23; [L561] SORT_22 var_284_arg_1 = var_81; [L562] SORT_3 var_284 = var_284_arg_0 == var_284_arg_1; [L563] SORT_22 var_338_arg_0 = input_23; [L564] SORT_22 var_338_arg_1 = var_202; [L565] SORT_3 var_338 = var_338_arg_0 == var_338_arg_1; [L566] SORT_3 var_339_arg_0 = var_284; [L567] SORT_3 var_339_arg_1 = var_338; [L568] SORT_1 var_339 = ((SORT_1)var_339_arg_0 << 1) | var_339_arg_1; [L569] var_339 = var_339 & mask_SORT_1 [L570] SORT_3 var_340_arg_0 = var_289; [L571] SORT_1 var_340_arg_1 = var_339; [L572] SORT_15 var_340 = ((SORT_15)var_340_arg_0 << 2) | var_340_arg_1; [L573] var_340 = var_340 & mask_SORT_15 [L574] SORT_3 var_341_arg_0 = var_303; [L575] SORT_15 var_341_arg_1 = var_340; [L576] SORT_187 var_341 = ((SORT_187)var_341_arg_0 << 3) | var_341_arg_1; [L577] var_341 = var_341 & mask_SORT_187 [L578] SORT_3 var_342_arg_0 = var_336; [L579] SORT_187 var_342_arg_1 = var_341; [L580] SORT_22 var_342 = ((SORT_22)var_342_arg_0 << 4) | var_342_arg_1; [L581] var_342 = var_342 & mask_SORT_22 [L582] SORT_22 var_343_arg_0 = var_342; [L583] SORT_3 var_343 = var_343_arg_0 != 0; [L584] SORT_3 var_320_arg_0 = var_319; [L585] SORT_3 var_320_arg_1 = var_138; [L586] SORT_3 var_320_arg_2 = var_138; [L587] EXPR var_320_arg_0 ? var_320_arg_1 : var_320_arg_2 [L587] SORT_3 var_320 = var_320_arg_0 ? var_320_arg_1 : var_320_arg_2; [L588] SORT_3 var_317_arg_0 = var_316; [L589] SORT_3 var_317_arg_1 = var_138; [L590] SORT_3 var_317_arg_2 = var_138; [L591] EXPR var_317_arg_0 ? var_317_arg_1 : var_317_arg_2 [L591] SORT_3 var_317 = var_317_arg_0 ? var_317_arg_1 : var_317_arg_2; [L592] SORT_3 var_324_arg_0 = var_323; [L593] SORT_3 var_324_arg_1 = var_320; [L594] SORT_3 var_324_arg_2 = var_317; [L595] EXPR var_324_arg_0 ? var_324_arg_1 : var_324_arg_2 [L595] SORT_3 var_324 = var_324_arg_0 ? var_324_arg_1 : var_324_arg_2; [L596] SORT_3 var_310_arg_0 = var_309; [L597] SORT_3 var_310_arg_1 = var_138; [L598] SORT_3 var_310_arg_2 = var_138; [L599] EXPR var_310_arg_0 ? var_310_arg_1 : var_310_arg_2 [L599] SORT_3 var_310 = var_310_arg_0 ? var_310_arg_1 : var_310_arg_2; [L600] SORT_3 var_307_arg_0 = var_306; [L601] SORT_3 var_307_arg_1 = var_138; [L602] SORT_3 var_307_arg_2 = var_138; [L603] EXPR var_307_arg_0 ? var_307_arg_1 : var_307_arg_2 [L603] SORT_3 var_307 = var_307_arg_0 ? var_307_arg_1 : var_307_arg_2; [L604] SORT_3 var_314_arg_0 = var_313; [L605] SORT_3 var_314_arg_1 = var_310; [L606] SORT_3 var_314_arg_2 = var_307; [L607] EXPR var_314_arg_0 ? var_314_arg_1 : var_314_arg_2 [L607] SORT_3 var_314 = var_314_arg_0 ? var_314_arg_1 : var_314_arg_2; [L608] SORT_3 var_330_arg_0 = var_329; [L609] SORT_3 var_330_arg_1 = var_324; [L610] SORT_3 var_330_arg_2 = var_314; [L611] EXPR var_330_arg_0 ? var_330_arg_1 : var_330_arg_2 [L611] SORT_3 var_330 = var_330_arg_0 ? var_330_arg_1 : var_330_arg_2; [L612] SORT_3 var_295_arg_0 = var_294; [L613] SORT_3 var_295_arg_1 = var_138; [L614] SORT_3 var_295_arg_2 = var_138; [L615] EXPR var_295_arg_0 ? var_295_arg_1 : var_295_arg_2 [L615] SORT_3 var_295 = var_295_arg_0 ? var_295_arg_1 : var_295_arg_2; [L616] SORT_3 var_292_arg_0 = var_291; [L617] SORT_3 var_292_arg_1 = var_42; [L618] SORT_3 var_292_arg_2 = var_42; [L619] EXPR var_292_arg_0 ? var_292_arg_1 : var_292_arg_2 [L619] SORT_3 var_292 = var_292_arg_0 ? var_292_arg_1 : var_292_arg_2; [L620] SORT_3 var_299_arg_0 = var_298; [L621] SORT_3 var_299_arg_1 = var_295; [L622] SORT_3 var_299_arg_2 = var_292; [L623] EXPR var_299_arg_0 ? var_299_arg_1 : var_299_arg_2 [L623] SORT_3 var_299 = var_299_arg_0 ? var_299_arg_1 : var_299_arg_2; [L624] SORT_3 var_287_arg_0 = var_286; [L625] SORT_3 var_287_arg_1 = var_42; [L626] SORT_3 var_287_arg_2 = var_42; [L627] EXPR var_287_arg_0 ? var_287_arg_1 : var_287_arg_2 [L627] SORT_3 var_287 = var_287_arg_0 ? var_287_arg_1 : var_287_arg_2; [L628] SORT_3 var_285_arg_0 = var_284; [L629] SORT_3 var_285_arg_1 = var_42; [L630] SORT_3 var_285_arg_2 = var_42; [L631] EXPR var_285_arg_0 ? var_285_arg_1 : var_285_arg_2 [L631] SORT_3 var_285 = var_285_arg_0 ? var_285_arg_1 : var_285_arg_2; [L632] SORT_3 var_290_arg_0 = var_289; [L633] SORT_3 var_290_arg_1 = var_287; [L634] SORT_3 var_290_arg_2 = var_285; [L635] EXPR var_290_arg_0 ? var_290_arg_1 : var_290_arg_2 [L635] SORT_3 var_290 = var_290_arg_0 ? var_290_arg_1 : var_290_arg_2; [L636] SORT_3 var_304_arg_0 = var_303; [L637] SORT_3 var_304_arg_1 = var_299; [L638] SORT_3 var_304_arg_2 = var_290; [L639] EXPR var_304_arg_0 ? var_304_arg_1 : var_304_arg_2 [L639] SORT_3 var_304 = var_304_arg_0 ? var_304_arg_1 : var_304_arg_2; [L640] SORT_3 var_337_arg_0 = var_336; [L641] SORT_3 var_337_arg_1 = var_330; [L642] SORT_3 var_337_arg_2 = var_304; [L643] EXPR var_337_arg_0 ? var_337_arg_1 : var_337_arg_2 [L643] SORT_3 var_337 = var_337_arg_0 ? var_337_arg_1 : var_337_arg_2; [L644] SORT_22 var_269_arg_0 = input_23; [L645] SORT_22 var_269_arg_1 = var_206; [L646] SORT_3 var_269 = var_269_arg_0 == var_269_arg_1; [L647] SORT_22 var_267_arg_0 = input_23; [L648] SORT_22 var_267_arg_1 = var_204; [L649] SORT_3 var_267 = var_267_arg_0 == var_267_arg_1; [L650] SORT_3 var_270_arg_0 = var_269; [L651] SORT_3 var_270_arg_1 = var_267; [L652] SORT_3 var_270 = var_270_arg_0 | var_270_arg_1; [L653] var_270 = var_270 & mask_SORT_3 [L654] SORT_22 var_265_arg_0 = input_23; [L655] SORT_22 var_265_arg_1 = var_264; [L656] SORT_3 var_265 = var_265_arg_0 == var_265_arg_1; [L657] SORT_22 var_273_arg_0 = input_23; [L658] SORT_22 var_273_arg_1 = var_272; [L659] SORT_3 var_273 = var_273_arg_0 == var_273_arg_1; [L660] SORT_3 var_274_arg_0 = var_265; [L661] SORT_3 var_274_arg_1 = var_273; [L662] SORT_1 var_274 = ((SORT_1)var_274_arg_0 << 1) | var_274_arg_1; [L663] var_274 = var_274 & mask_SORT_1 [L664] SORT_3 var_275_arg_0 = var_270; [L665] SORT_1 var_275_arg_1 = var_274; [L666] SORT_15 var_275 = ((SORT_15)var_275_arg_0 << 2) | var_275_arg_1; [L667] var_275 = var_275 & mask_SORT_15 [L668] SORT_15 var_276_arg_0 = var_275; [L669] SORT_3 var_276 = var_276_arg_0 != 0; [L670] SORT_22 var_261_arg_0 = input_23; [L671] SORT_22 var_261_arg_1 = var_179; [L672] SORT_3 var_261 = var_261_arg_0 == var_261_arg_1; [L673] SORT_22 var_259_arg_0 = input_23; [L674] SORT_22 var_259_arg_1 = var_177; [L675] SORT_3 var_259 = var_259_arg_0 == var_259_arg_1; [L676] SORT_3 var_262_arg_0 = var_261; [L677] SORT_3 var_262_arg_1 = var_259; [L678] SORT_3 var_262 = var_262_arg_0 | var_262_arg_1; [L679] var_262 = var_262 & mask_SORT_3 [L680] SORT_22 var_257_arg_0 = input_23; [L681] SORT_22 var_257_arg_1 = var_183; [L682] SORT_3 var_257 = var_257_arg_0 == var_257_arg_1; [L683] SORT_22 var_278_arg_0 = input_23; [L684] SORT_22 var_278_arg_1 = var_208; [L685] SORT_3 var_278 = var_278_arg_0 == var_278_arg_1; [L686] SORT_3 var_279_arg_0 = var_257; [L687] SORT_3 var_279_arg_1 = var_278; [L688] SORT_1 var_279 = ((SORT_1)var_279_arg_0 << 1) | var_279_arg_1; [L689] var_279 = var_279 & mask_SORT_1 [L690] SORT_3 var_280_arg_0 = var_262; [L691] SORT_1 var_280_arg_1 = var_279; [L692] SORT_15 var_280 = ((SORT_15)var_280_arg_0 << 2) | var_280_arg_1; [L693] var_280 = var_280 & mask_SORT_15 [L694] SORT_3 var_281_arg_0 = var_276; [L695] SORT_15 var_281_arg_1 = var_280; [L696] SORT_187 var_281 = ((SORT_187)var_281_arg_0 << 3) | var_281_arg_1; [L697] var_281 = var_281 & mask_SORT_187 [L698] SORT_187 var_282_arg_0 = var_281; [L699] SORT_3 var_282 = var_282_arg_0 != 0; [L700] SORT_3 var_268_arg_0 = var_267; [L701] SORT_3 var_268_arg_1 = var_42; [L702] SORT_3 var_268_arg_2 = var_42; [L703] EXPR var_268_arg_0 ? var_268_arg_1 : var_268_arg_2 [L703] SORT_3 var_268 = var_268_arg_0 ? var_268_arg_1 : var_268_arg_2; [L704] SORT_3 var_266_arg_0 = var_265; [L705] SORT_3 var_266_arg_1 = var_138; [L706] SORT_3 var_266_arg_2 = var_138; [L707] EXPR var_266_arg_0 ? var_266_arg_1 : var_266_arg_2 [L707] SORT_3 var_266 = var_266_arg_0 ? var_266_arg_1 : var_266_arg_2; [L708] SORT_3 var_271_arg_0 = var_270; [L709] SORT_3 var_271_arg_1 = var_268; [L710] SORT_3 var_271_arg_2 = var_266; [L711] EXPR var_271_arg_0 ? var_271_arg_1 : var_271_arg_2 [L711] SORT_3 var_271 = var_271_arg_0 ? var_271_arg_1 : var_271_arg_2; [L712] SORT_3 var_260_arg_0 = var_259; [L713] SORT_3 var_260_arg_1 = var_42; [L714] SORT_3 var_260_arg_2 = var_42; [L715] EXPR var_260_arg_0 ? var_260_arg_1 : var_260_arg_2 [L715] SORT_3 var_260 = var_260_arg_0 ? var_260_arg_1 : var_260_arg_2; [L716] SORT_3 var_258_arg_0 = var_257; [L717] SORT_3 var_258_arg_1 = var_42; [L718] SORT_3 var_258_arg_2 = var_42; [L719] EXPR var_258_arg_0 ? var_258_arg_1 : var_258_arg_2 [L719] SORT_3 var_258 = var_258_arg_0 ? var_258_arg_1 : var_258_arg_2; [L720] SORT_3 var_263_arg_0 = var_262; [L721] SORT_3 var_263_arg_1 = var_260; [L722] SORT_3 var_263_arg_2 = var_258; [L723] EXPR var_263_arg_0 ? var_263_arg_1 : var_263_arg_2 [L723] SORT_3 var_263 = var_263_arg_0 ? var_263_arg_1 : var_263_arg_2; [L724] SORT_3 var_277_arg_0 = var_276; [L725] SORT_3 var_277_arg_1 = var_271; [L726] SORT_3 var_277_arg_2 = var_263; [L727] EXPR var_277_arg_0 ? var_277_arg_1 : var_277_arg_2 [L727] SORT_3 var_277 = var_277_arg_0 ? var_277_arg_1 : var_277_arg_2; [L728] SORT_22 var_249_arg_0 = input_23; [L729] SORT_22 var_249_arg_1 = var_210; [L730] SORT_3 var_249 = var_249_arg_0 == var_249_arg_1; [L731] SORT_22 var_247_arg_0 = input_23; [L732] SORT_22 var_247_arg_1 = var_246; [L733] SORT_3 var_247 = var_247_arg_0 == var_247_arg_1; [L734] SORT_3 var_250_arg_0 = var_249; [L735] SORT_3 var_250_arg_1 = var_247; [L736] SORT_3 var_250 = var_250_arg_0 | var_250_arg_1; [L737] var_250 = var_250 & mask_SORT_3 [L738] SORT_22 var_244_arg_0 = input_23; [L739] SORT_22 var_244_arg_1 = var_214; [L740] SORT_3 var_244 = var_244_arg_0 == var_244_arg_1; [L741] SORT_22 var_252_arg_0 = input_23; [L742] SORT_22 var_252_arg_1 = var_234; [L743] SORT_3 var_252 = var_252_arg_0 == var_252_arg_1; [L744] SORT_3 var_253_arg_0 = var_244; [L745] SORT_3 var_253_arg_1 = var_252; [L746] SORT_1 var_253 = ((SORT_1)var_253_arg_0 << 1) | var_253_arg_1; [L747] var_253 = var_253 & mask_SORT_1 [L748] SORT_3 var_254_arg_0 = var_250; [L749] SORT_1 var_254_arg_1 = var_253; [L750] SORT_15 var_254 = ((SORT_15)var_254_arg_0 << 2) | var_254_arg_1; [L751] var_254 = var_254 & mask_SORT_15 [L752] SORT_15 var_255_arg_0 = var_254; [L753] SORT_3 var_255 = var_255_arg_0 != 0; [L754] SORT_3 var_248_arg_0 = var_247; [L755] SORT_3 var_248_arg_1 = var_138; [L756] SORT_3 var_248_arg_2 = var_42; [L757] EXPR var_248_arg_0 ? var_248_arg_1 : var_248_arg_2 [L757] SORT_3 var_248 = var_248_arg_0 ? var_248_arg_1 : var_248_arg_2; [L758] SORT_3 var_245_arg_0 = var_244; [L759] SORT_3 var_245_arg_1 = var_42; [L760] SORT_3 var_245_arg_2 = var_42; [L761] EXPR var_245_arg_0 ? var_245_arg_1 : var_245_arg_2 [L761] SORT_3 var_245 = var_245_arg_0 ? var_245_arg_1 : var_245_arg_2; [L762] SORT_3 var_251_arg_0 = var_250; [L763] SORT_3 var_251_arg_1 = var_248; [L764] SORT_3 var_251_arg_2 = var_245; [L765] EXPR var_251_arg_0 ? var_251_arg_1 : var_251_arg_2 [L765] SORT_3 var_251 = var_251_arg_0 ? var_251_arg_1 : var_251_arg_2; [L766] SORT_22 var_241_arg_0 = input_23; [L767] SORT_22 var_241_arg_1 = var_181; [L768] SORT_3 var_241 = var_241_arg_0 == var_241_arg_1; [L769] SORT_22 var_239_arg_0 = input_23; [L770] SORT_22 var_239_arg_1 = var_212; [L771] SORT_3 var_239 = var_239_arg_0 == var_239_arg_1; [L772] SORT_3 var_242_arg_0 = var_241; [L773] SORT_3 var_242_arg_1 = var_239; [L774] SORT_3 var_242 = var_242_arg_0 | var_242_arg_1; [L775] var_242 = var_242 & mask_SORT_3 [L776] SORT_3 var_240_arg_0 = var_239; [L777] SORT_3 var_240_arg_1 = var_42; [L778] SORT_3 var_240_arg_2 = var_42; [L779] EXPR var_240_arg_0 ? var_240_arg_1 : var_240_arg_2 [L779] SORT_3 var_240 = var_240_arg_0 ? var_240_arg_1 : var_240_arg_2; [L780] SORT_22 var_237_arg_0 = input_23; [L781] SORT_22 var_237_arg_1 = var_236; [L782] SORT_3 var_237 = var_237_arg_0 == var_237_arg_1; [L783] SORT_3 var_238_arg_0 = var_237; [L784] SORT_3 var_238_arg_1 = var_138; [L785] SORT_3 var_238_arg_2 = var_138; [L786] EXPR var_238_arg_0 ? var_238_arg_1 : var_238_arg_2 [L786] SORT_3 var_238 = var_238_arg_0 ? var_238_arg_1 : var_238_arg_2; [L787] SORT_3 var_243_arg_0 = var_242; [L788] SORT_3 var_243_arg_1 = var_240; [L789] SORT_3 var_243_arg_2 = var_238; [L790] EXPR var_243_arg_0 ? var_243_arg_1 : var_243_arg_2 [L790] SORT_3 var_243 = var_243_arg_0 ? var_243_arg_1 : var_243_arg_2; [L791] SORT_3 var_256_arg_0 = var_255; [L792] SORT_3 var_256_arg_1 = var_251; [L793] SORT_3 var_256_arg_2 = var_243; [L794] EXPR var_256_arg_0 ? var_256_arg_1 : var_256_arg_2 [L794] SORT_3 var_256 = var_256_arg_0 ? var_256_arg_1 : var_256_arg_2; [L795] SORT_3 var_283_arg_0 = var_282; [L796] SORT_3 var_283_arg_1 = var_277; [L797] SORT_3 var_283_arg_2 = var_256; [L798] EXPR var_283_arg_0 ? var_283_arg_1 : var_283_arg_2 [L798] SORT_3 var_283 = var_283_arg_0 ? var_283_arg_1 : var_283_arg_2; [L799] SORT_3 var_344_arg_0 = var_343; [L800] SORT_3 var_344_arg_1 = var_337; [L801] SORT_3 var_344_arg_2 = var_283; [L802] EXPR var_344_arg_0 ? var_344_arg_1 : var_344_arg_2 [L802] SORT_3 var_344 = var_344_arg_0 ? var_344_arg_1 : var_344_arg_2; [L803] SORT_22 var_235_arg_0 = input_23; [L804] SORT_22 var_235_arg_1 = var_234; [L805] SORT_3 var_235 = var_235_arg_0 == var_235_arg_1; [L806] SORT_22 var_215_arg_0 = input_23; [L807] SORT_22 var_215_arg_1 = var_214; [L808] SORT_3 var_215 = var_215_arg_0 == var_215_arg_1; [L809] SORT_22 var_213_arg_0 = input_23; [L810] SORT_22 var_213_arg_1 = var_212; [L811] SORT_3 var_213 = var_213_arg_0 == var_213_arg_1; [L812] SORT_22 var_211_arg_0 = input_23; [L813] SORT_22 var_211_arg_1 = var_210; [L814] SORT_3 var_211 = var_211_arg_0 == var_211_arg_1; [L815] SORT_22 var_209_arg_0 = input_23; [L816] SORT_22 var_209_arg_1 = var_208; [L817] SORT_3 var_209 = var_209_arg_0 == var_209_arg_1; [L818] SORT_22 var_207_arg_0 = input_23; [L819] SORT_22 var_207_arg_1 = var_206; [L820] SORT_3 var_207 = var_207_arg_0 == var_207_arg_1; [L821] SORT_22 var_205_arg_0 = input_23; [L822] SORT_22 var_205_arg_1 = var_204; [L823] SORT_3 var_205 = var_205_arg_0 == var_205_arg_1; [L824] SORT_22 var_203_arg_0 = input_23; [L825] SORT_22 var_203_arg_1 = var_202; [L826] SORT_3 var_203 = var_203_arg_0 == var_203_arg_1; [L827] SORT_22 var_82_arg_0 = input_23; [L828] SORT_22 var_82_arg_1 = var_81; [L829] SORT_3 var_82 = var_82_arg_0 == var_82_arg_1; [L830] SORT_22 var_201_arg_0 = input_23; [L831] SORT_22 var_201_arg_1 = var_200; [L832] SORT_3 var_201 = var_201_arg_0 == var_201_arg_1; [L833] SORT_22 var_199_arg_0 = input_23; [L834] SORT_22 var_199_arg_1 = var_198; [L835] SORT_3 var_199 = var_199_arg_0 == var_199_arg_1; [L836] SORT_22 var_197_arg_0 = input_23; [L837] SORT_22 var_197_arg_1 = var_196; [L838] SORT_3 var_197 = var_197_arg_0 == var_197_arg_1; [L839] SORT_22 var_84_arg_0 = input_23; [L840] SORT_22 var_84_arg_1 = var_83; [L841] SORT_3 var_84 = var_84_arg_0 == var_84_arg_1; [L842] SORT_3 var_216_arg_0 = var_197; [L843] SORT_3 var_216_arg_1 = var_84; [L844] SORT_1 var_216 = ((SORT_1)var_216_arg_0 << 1) | var_216_arg_1; [L845] var_216 = var_216 & mask_SORT_1 [L846] SORT_3 var_217_arg_0 = var_199; [L847] SORT_1 var_217_arg_1 = var_216; [L848] SORT_15 var_217 = ((SORT_15)var_217_arg_0 << 2) | var_217_arg_1; [L849] var_217 = var_217 & mask_SORT_15 [L850] SORT_3 var_218_arg_0 = var_201; [L851] SORT_15 var_218_arg_1 = var_217; [L852] SORT_187 var_218 = ((SORT_187)var_218_arg_0 << 3) | var_218_arg_1; [L853] var_218 = var_218 & mask_SORT_187 [L854] SORT_3 var_219_arg_0 = var_82; [L855] SORT_187 var_219_arg_1 = var_218; [L856] SORT_22 var_219 = ((SORT_22)var_219_arg_0 << 4) | var_219_arg_1; [L857] var_219 = var_219 & mask_SORT_22 [L858] SORT_3 var_221_arg_0 = var_203; [L859] SORT_22 var_221_arg_1 = var_219; [L860] SORT_220 var_221 = ((SORT_220)var_221_arg_0 << 5) | var_221_arg_1; [L861] var_221 = var_221 & mask_SORT_220 [L862] SORT_3 var_223_arg_0 = var_205; [L863] SORT_220 var_223_arg_1 = var_221; [L864] SORT_222 var_223 = ((SORT_222)var_223_arg_0 << 6) | var_223_arg_1; [L865] var_223 = var_223 & mask_SORT_222 [L866] SORT_3 var_224_arg_0 = var_207; [L867] SORT_222 var_224_arg_1 = var_223; [L868] SORT_5 var_224 = ((SORT_5)var_224_arg_0 << 7) | var_224_arg_1; [L869] var_224 = var_224 & mask_SORT_5 [L870] SORT_3 var_226_arg_0 = var_209; [L871] SORT_5 var_226_arg_1 = var_224; [L872] SORT_225 var_226 = ((SORT_225)var_226_arg_0 << 8) | var_226_arg_1; [L873] var_226 = var_226 & mask_SORT_225 [L874] SORT_3 var_228_arg_0 = var_211; [L875] SORT_225 var_228_arg_1 = var_226; [L876] SORT_227 var_228 = ((SORT_227)var_228_arg_0 << 9) | var_228_arg_1; [L877] var_228 = var_228 & mask_SORT_227 [L878] SORT_3 var_230_arg_0 = var_213; [L879] SORT_227 var_230_arg_1 = var_228; [L880] SORT_229 var_230 = ((SORT_229)var_230_arg_0 << 10) | var_230_arg_1; [L881] var_230 = var_230 & mask_SORT_229 [L882] SORT_3 var_232_arg_0 = var_215; [L883] SORT_229 var_232_arg_1 = var_230; [L884] SORT_231 var_232 = ((SORT_231)var_232_arg_0 << 11) | var_232_arg_1; [L885] var_232 = var_232 & mask_SORT_231 [L886] SORT_231 var_233_arg_0 = var_232; [L887] SORT_3 var_233 = var_233_arg_0 != 0; [L888] SORT_3 var_345_arg_0 = var_235; [L889] SORT_3 var_345_arg_1 = var_233; [L890] SORT_1 var_345 = ((SORT_1)var_345_arg_0 << 1) | var_345_arg_1; [L891] var_345 = var_345 & mask_SORT_1 [L892] SORT_3 var_346_arg_0 = var_344; [L893] SORT_1 var_346_arg_1 = var_345; [L894] SORT_15 var_346 = ((SORT_15)var_346_arg_0 << 2) | var_346_arg_1; [L895] var_346 = var_346 & mask_SORT_15 [L896] SORT_15 var_347_arg_0 = var_346; [L897] SORT_3 var_347 = var_347_arg_0 != 0; [L898] SORT_3 var_111_arg_0 = input_20; [L899] SORT_3 var_111_arg_1 = var_110; [L900] SORT_1 var_111 = ((SORT_1)var_111_arg_0 << 1) | var_111_arg_1; [L901] var_111 = var_111 & mask_SORT_1 [L902] SORT_1 var_112_arg_0 = var_111; [L903] SORT_3 var_112 = var_112_arg_0 == mask_SORT_1; [L904] SORT_3 var_348_arg_0 = var_347; [L905] SORT_3 var_348_arg_1 = var_112; [L906] SORT_1 var_348 = ((SORT_1)var_348_arg_0 << 1) | var_348_arg_1; [L907] var_348 = var_348 & mask_SORT_1 [L908] SORT_3 var_349_arg_0 = var_100; [L909] SORT_1 var_349_arg_1 = var_348; [L910] SORT_15 var_349 = ((SORT_15)var_349_arg_0 << 2) | var_349_arg_1; [L911] var_349 = var_349 & mask_SORT_15 [L912] SORT_15 var_350_arg_0 = var_349; [L913] SORT_3 var_350 = var_350_arg_0 == mask_SORT_15; [L914] SORT_3 var_93_arg_0 = input_20; [L915] SORT_3 var_93 = ~var_93_arg_0; [L916] var_93 = var_93 & mask_SORT_3 [L917] SORT_3 var_118_arg_0 = input_20; [L918] SORT_3 var_118_arg_1 = var_109; [L919] SORT_1 var_118 = ((SORT_1)var_118_arg_0 << 1) | var_118_arg_1; [L920] var_118 = var_118 & mask_SORT_1 [L921] SORT_1 var_119_arg_0 = var_118; [L922] SORT_3 var_119 = var_119_arg_0 == mask_SORT_1; [L923] SORT_3 var_194_arg_0 = var_93; [L924] SORT_3 var_194_arg_1 = var_119; [L925] SORT_1 var_194 = ((SORT_1)var_194_arg_0 << 1) | var_194_arg_1; [L926] var_194 = var_194 & mask_SORT_1 [L927] SORT_1 var_195_arg_0 = var_194; [L928] SORT_3 var_195 = var_195_arg_0 != 0; [L929] SORT_3 var_351_arg_0 = var_350; [L930] SORT_3 var_351_arg_1 = var_195; [L931] SORT_1 var_351 = ((SORT_1)var_351_arg_0 << 1) | var_351_arg_1; [L932] var_351 = var_351 & mask_SORT_1 [L933] SORT_1 var_352_arg_0 = var_351; [L934] SORT_3 var_352 = var_352_arg_0 != 0; [L935] SORT_22 var_184_arg_0 = input_23; [L936] SORT_22 var_184_arg_1 = var_183; [L937] SORT_3 var_184 = var_184_arg_0 == var_184_arg_1; [L938] SORT_22 var_182_arg_0 = input_23; [L939] SORT_22 var_182_arg_1 = var_181; [L940] SORT_3 var_182 = var_182_arg_0 == var_182_arg_1; [L941] SORT_22 var_180_arg_0 = input_23; [L942] SORT_22 var_180_arg_1 = var_179; [L943] SORT_3 var_180 = var_180_arg_0 == var_180_arg_1; [L944] SORT_22 var_178_arg_0 = input_23; [L945] SORT_22 var_178_arg_1 = var_177; [L946] SORT_3 var_178 = var_178_arg_0 == var_178_arg_1; [L947] SORT_3 var_185_arg_0 = var_180; [L948] SORT_3 var_185_arg_1 = var_178; [L949] SORT_1 var_185 = ((SORT_1)var_185_arg_0 << 1) | var_185_arg_1; [L950] var_185 = var_185 & mask_SORT_1 [L951] SORT_3 var_186_arg_0 = var_182; [L952] SORT_1 var_186_arg_1 = var_185; [L953] SORT_15 var_186 = ((SORT_15)var_186_arg_0 << 2) | var_186_arg_1; [L954] var_186 = var_186 & mask_SORT_15 [L955] SORT_3 var_188_arg_0 = var_184; [L956] SORT_15 var_188_arg_1 = var_186; [L957] SORT_187 var_188 = ((SORT_187)var_188_arg_0 << 3) | var_188_arg_1; [L958] var_188 = var_188 & mask_SORT_187 [L959] SORT_187 var_189_arg_0 = var_188; [L960] SORT_3 var_189 = var_189_arg_0 != 0; [L961] SORT_3 var_190_arg_0 = var_189; [L962] SORT_3 var_190_arg_1 = var_112; [L963] SORT_1 var_190 = ((SORT_1)var_190_arg_0 << 1) | var_190_arg_1; [L964] var_190 = var_190 & mask_SORT_1 [L965] SORT_3 var_191_arg_0 = var_100; [L966] SORT_1 var_191_arg_1 = var_190; [L967] SORT_15 var_191 = ((SORT_15)var_191_arg_0 << 2) | var_191_arg_1; [L968] var_191 = var_191 & mask_SORT_15 [L969] SORT_15 var_192_arg_0 = var_191; [L970] SORT_3 var_192 = var_192_arg_0 == mask_SORT_15; [L971] SORT_3 var_166_arg_0 = var_165; [L972] SORT_3 var_166 = ~var_166_arg_0; [L973] SORT_3 var_174_arg_0 = var_166; [L974] SORT_3 var_174_arg_1 = var_94; [L975] SORT_1 var_174 = ((SORT_1)var_174_arg_0 << 1) | var_174_arg_1; [L976] var_174 = var_174 & mask_SORT_1 [L977] SORT_1 var_175_arg_0 = var_174; [L978] SORT_3 var_175 = var_175_arg_0 == mask_SORT_1; [L979] SORT_3 var_176_arg_0 = var_175; [L980] SORT_3 var_176_arg_1 = var_165; [L981] SORT_1 var_176 = ((SORT_1)var_176_arg_0 << 1) | var_176_arg_1; [L982] SORT_3 var_104_arg_0 = var_100; [L983] SORT_3 var_104 = ~var_104_arg_0; [L984] var_104 = var_104 & mask_SORT_3 [L985] SORT_3 var_171_arg_0 = var_112; [L986] SORT_3 var_171_arg_1 = var_104; [L987] SORT_1 var_171 = ((SORT_1)var_171_arg_0 << 1) | var_171_arg_1; [L988] var_171 = var_171 & mask_SORT_1 [L989] SORT_1 var_172_arg_0 = var_171; [L990] SORT_3 var_172 = var_172_arg_0 == mask_SORT_1; [L991] SORT_3 var_167_arg_0 = var_94; [L992] SORT_3 var_167_arg_1 = var_163; [L993] SORT_1 var_167 = ((SORT_1)var_167_arg_0 << 1) | var_167_arg_1; [L994] var_167 = var_167 & mask_SORT_1 [L995] SORT_3 var_168_arg_0 = var_166; [L996] SORT_1 var_168_arg_1 = var_167; [L997] SORT_15 var_168 = ((SORT_15)var_168_arg_0 << 2) | var_168_arg_1; [L998] var_168 = var_168 & mask_SORT_15 [L999] SORT_15 var_169_arg_0 = var_168; [L1000] SORT_3 var_169 = var_169_arg_0 == mask_SORT_15; [L1001] SORT_3 var_170_arg_0 = var_169; [L1002] SORT_3 var_170_arg_1 = var_42; [L1003] SORT_1 var_170 = ((SORT_1)var_170_arg_0 << 1) | var_170_arg_1; [L1004] SORT_3 var_173_arg_0 = var_172; [L1005] SORT_1 var_173_arg_1 = var_170; [L1006] SORT_1 var_173_arg_2 = var_55; [L1007] EXPR var_173_arg_0 ? var_173_arg_1 : var_173_arg_2 [L1007] SORT_1 var_173 = var_173_arg_0 ? var_173_arg_1 : var_173_arg_2; [L1008] SORT_3 var_193_arg_0 = var_192; [L1009] SORT_1 var_193_arg_1 = var_176; [L1010] SORT_1 var_193_arg_2 = var_173; [L1011] EXPR var_193_arg_0 ? var_193_arg_1 : var_193_arg_2 [L1011] SORT_1 var_193 = var_193_arg_0 ? var_193_arg_1 : var_193_arg_2; [L1012] SORT_3 var_353_arg_0 = var_352; [L1013] SORT_1 var_353_arg_1 = var_55; [L1014] SORT_1 var_353_arg_2 = var_193; [L1015] EXPR var_353_arg_0 ? var_353_arg_1 : var_353_arg_2 [L1015] SORT_1 var_353 = var_353_arg_0 ? var_353_arg_1 : var_353_arg_2; [L1016] var_353 = var_353 & mask_SORT_1 [L1017] SORT_220 var_355_arg_0 = var_354; [L1018] SORT_1 var_355_arg_1 = var_353; [L1019] SORT_5 var_355 = ((SORT_5)var_355_arg_0 << 2) | var_355_arg_1; [L1020] SORT_3 var_135_arg_0 = state_52; [L1021] SORT_5 var_135_arg_1 = state_133; [L1022] SORT_5 var_135_arg_2 = input_27; [L1023] EXPR var_135_arg_0 ? var_135_arg_1 : var_135_arg_2 [L1023] SORT_5 var_135 = var_135_arg_0 ? var_135_arg_1 : var_135_arg_2; [L1024] SORT_3 var_136_arg_0 = var_59; [L1025] SORT_5 var_136_arg_1 = var_135; [L1026] SORT_5 var_136_arg_2 = var_49; [L1027] EXPR var_136_arg_0 ? var_136_arg_1 : var_136_arg_2 [L1027] SORT_5 var_136 = var_136_arg_0 ? var_136_arg_1 : var_136_arg_2; [L1028] SORT_3 var_137_arg_0 = var_61; [L1029] SORT_5 var_137_arg_1 = var_49; [L1030] SORT_5 var_137_arg_2 = var_136; [L1031] EXPR var_137_arg_0 ? var_137_arg_1 : var_137_arg_2 [L1031] SORT_5 var_137 = var_137_arg_0 ? var_137_arg_1 : var_137_arg_2; [L1032] SORT_3 var_373_arg_0 = var_372; [L1033] SORT_5 var_373_arg_1 = var_355; [L1034] SORT_5 var_373_arg_2 = var_137; [L1035] EXPR var_373_arg_0 ? var_373_arg_1 : var_373_arg_2 [L1035] SORT_5 var_373 = var_373_arg_0 ? var_373_arg_1 : var_373_arg_2; [L1036] var_373 = var_373 & mask_SORT_5 [L1037] SORT_5 var_374_arg_0 = var_373; [L1038] SORT_5 var_374_arg_1 = var_49; [L1039] SORT_3 var_374 = var_374_arg_0 == var_374_arg_1; [L1040] SORT_3 var_380_arg_0 = var_374; [L1041] SORT_3 var_380 = ~var_380_arg_0; [L1042] SORT_1 var_95_arg_0 = input_17; [L1043] SORT_1 var_95_arg_1 = var_55; [L1044] SORT_3 var_95 = var_95_arg_0 == var_95_arg_1; [L1045] SORT_3 var_122_arg_0 = var_104; [L1046] SORT_3 var_122_arg_1 = var_95; [L1047] SORT_1 var_122 = ((SORT_1)var_122_arg_0 << 1) | var_122_arg_1; [L1048] var_122 = var_122 & mask_SORT_1 [L1049] SORT_1 var_123_arg_0 = var_122; [L1050] SORT_3 var_123 = var_123_arg_0 == mask_SORT_1; [L1051] SORT_3 var_96_arg_0 = var_95; [L1052] SORT_3 var_96_arg_1 = var_94; [L1053] SORT_1 var_96 = ((SORT_1)var_96_arg_0 << 1) | var_96_arg_1; [L1054] var_96 = var_96 & mask_SORT_1 [L1055] SORT_1 var_97_arg_0 = var_96; [L1056] SORT_3 var_97 = var_97_arg_0 != 0; [L1057] SORT_3 var_120_arg_0 = var_100; [L1058] SORT_3 var_120_arg_1 = var_97; [L1059] SORT_1 var_120 = ((SORT_1)var_120_arg_0 << 1) | var_120_arg_1; [L1060] var_120 = var_120 & mask_SORT_1 [L1061] SORT_1 var_121_arg_0 = var_120; [L1062] SORT_3 var_121 = var_121_arg_0 == mask_SORT_1; [L1063] SORT_3 var_124_arg_0 = var_123; [L1064] SORT_3 var_124_arg_1 = var_121; [L1065] SORT_1 var_124 = ((SORT_1)var_124_arg_0 << 1) | var_124_arg_1; [L1066] var_124 = var_124 & mask_SORT_1 [L1067] SORT_1 var_125_arg_0 = var_124; [L1068] SORT_3 var_125 = var_125_arg_0 != 0; [L1069] SORT_3 var_126_arg_0 = var_112; [L1070] SORT_3 var_126_arg_1 = var_125; [L1071] SORT_1 var_126 = ((SORT_1)var_126_arg_0 << 1) | var_126_arg_1; [L1072] var_126 = var_126 & mask_SORT_1 [L1073] SORT_1 var_127_arg_0 = var_126; [L1074] SORT_3 var_127 = var_127_arg_0 == mask_SORT_1; [L1075] SORT_3 var_128_arg_0 = var_127; [L1076] SORT_3 var_128_arg_1 = var_119; [L1077] SORT_1 var_128 = ((SORT_1)var_128_arg_0 << 1) | var_128_arg_1; [L1078] var_128 = var_128 & mask_SORT_1 [L1079] SORT_1 var_129_arg_0 = var_128; [L1080] SORT_3 var_129 = var_129_arg_0 != 0; [L1081] SORT_3 var_103_arg_0 = var_95; [L1082] SORT_3 var_103 = ~var_103_arg_0; [L1083] var_103 = var_103 & mask_SORT_3 [L1084] SORT_3 var_105_arg_0 = var_104; [L1085] SORT_3 var_105_arg_1 = var_103; [L1086] SORT_1 var_105 = ((SORT_1)var_105_arg_0 << 1) | var_105_arg_1; [L1087] var_105 = var_105 & mask_SORT_1 [L1088] SORT_1 var_106_arg_0 = var_105; [L1089] SORT_3 var_106 = var_106_arg_0 == mask_SORT_1; [L1090] SORT_3 var_98_arg_0 = var_97; [L1091] SORT_3 var_98 = ~var_98_arg_0; [L1092] var_98 = var_98 & mask_SORT_3 [L1093] SORT_3 var_101_arg_0 = var_100; [L1094] SORT_3 var_101_arg_1 = var_98; [L1095] SORT_1 var_101 = ((SORT_1)var_101_arg_0 << 1) | var_101_arg_1; [L1096] var_101 = var_101 & mask_SORT_1 [L1097] SORT_1 var_102_arg_0 = var_101; [L1098] SORT_3 var_102 = var_102_arg_0 == mask_SORT_1; [L1099] SORT_3 var_107_arg_0 = var_106; [L1100] SORT_3 var_107_arg_1 = var_102; [L1101] SORT_1 var_107 = ((SORT_1)var_107_arg_0 << 1) | var_107_arg_1; [L1102] var_107 = var_107 & mask_SORT_1 [L1103] SORT_1 var_108_arg_0 = var_107; [L1104] SORT_3 var_108 = var_108_arg_0 != 0; [L1105] SORT_3 var_113_arg_0 = var_112; [L1106] SORT_3 var_113_arg_1 = var_108; [L1107] SORT_1 var_113 = ((SORT_1)var_113_arg_0 << 1) | var_113_arg_1; [L1108] var_113 = var_113 & mask_SORT_1 [L1109] SORT_1 var_114_arg_0 = var_113; [L1110] SORT_3 var_114 = var_114_arg_0 == mask_SORT_1; [L1111] SORT_3 var_115_arg_0 = var_114; [L1112] SORT_3 var_115_arg_1 = var_93; [L1113] SORT_1 var_115 = ((SORT_1)var_115_arg_0 << 1) | var_115_arg_1; [L1114] var_115 = var_115 & mask_SORT_1 [L1115] SORT_1 var_116_arg_0 = var_115; [L1116] SORT_3 var_116 = var_116_arg_0 != 0; [L1117] SORT_3 var_90_arg_0 = state_52; [L1118] SORT_7 var_90_arg_1 = state_88; [L1119] SORT_7 var_90_arg_2 = input_25; [L1120] EXPR var_90_arg_0 ? var_90_arg_1 : var_90_arg_2 [L1120] SORT_7 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L1121] SORT_3 var_91_arg_0 = var_59; [L1122] SORT_7 var_91_arg_1 = var_90; [L1123] SORT_7 var_91_arg_2 = var_87; [L1124] EXPR var_91_arg_0 ? var_91_arg_1 : var_91_arg_2 [L1124] SORT_7 var_91 = var_91_arg_0 ? var_91_arg_1 : var_91_arg_2; [L1125] SORT_3 var_92_arg_0 = var_61; [L1126] SORT_7 var_92_arg_1 = var_87; [L1127] SORT_7 var_92_arg_2 = var_91; [L1128] EXPR var_92_arg_0 ? var_92_arg_1 : var_92_arg_2 [L1128] SORT_7 var_92 = var_92_arg_0 ? var_92_arg_1 : var_92_arg_2; [L1129] SORT_3 var_117_arg_0 = var_116; [L1130] SORT_7 var_117_arg_1 = var_92; [L1131] SORT_7 var_117_arg_2 = var_87; [L1132] EXPR var_117_arg_0 ? var_117_arg_1 : var_117_arg_2 [L1132] SORT_7 var_117 = var_117_arg_0 ? var_117_arg_1 : var_117_arg_2; [L1133] SORT_3 var_130_arg_0 = var_129; [L1134] SORT_7 var_130_arg_1 = input_8; [L1135] SORT_7 var_130_arg_2 = var_117; [L1136] EXPR var_130_arg_0 ? var_130_arg_1 : var_130_arg_2 [L1136] SORT_7 var_130 = var_130_arg_0 ? var_130_arg_1 : var_130_arg_2; [L1137] SORT_7 var_493_arg_0 = var_130; [L1138] SORT_3 var_493 = var_493_arg_0 >> 15; [L1139] SORT_3 var_494_arg_0 = var_493; [L1140] SORT_3 var_494 = ~var_494_arg_0; [L1141] SORT_3 var_483_arg_0 = var_197; [L1142] SORT_3 var_483_arg_1 = var_203; [L1143] SORT_1 var_483 = ((SORT_1)var_483_arg_0 << 1) | var_483_arg_1; [L1144] var_483 = var_483 & mask_SORT_1 [L1145] SORT_1 var_484_arg_0 = var_483; [L1146] SORT_3 var_484 = var_484_arg_0 != 0; [L1147] SORT_3 var_479_arg_0 = var_199; [L1148] SORT_3 var_479_arg_1 = var_205; [L1149] SORT_1 var_479 = ((SORT_1)var_479_arg_0 << 1) | var_479_arg_1; [L1150] var_479 = var_479 & mask_SORT_1 [L1151] SORT_1 var_480_arg_0 = var_479; [L1152] SORT_3 var_480 = var_480_arg_0 != 0; [L1153] SORT_3 var_475_arg_0 = var_201; [L1154] SORT_3 var_475_arg_1 = var_207; [L1155] SORT_1 var_475 = ((SORT_1)var_475_arg_0 << 1) | var_475_arg_1; [L1156] var_475 = var_475 & mask_SORT_1 [L1157] SORT_1 var_476_arg_0 = var_475; [L1158] SORT_3 var_476 = var_476_arg_0 != 0; [L1159] SORT_3 var_406_arg_0 = var_197; [L1160] SORT_3 var_406_arg_1 = var_203; [L1161] SORT_1 var_406 = ((SORT_1)var_406_arg_0 << 1) | var_406_arg_1; [L1162] var_406 = var_406 & mask_SORT_1 [L1163] SORT_3 var_407_arg_0 = var_82; [L1164] SORT_1 var_407_arg_1 = var_406; [L1165] SORT_15 var_407 = ((SORT_15)var_407_arg_0 << 2) | var_407_arg_1; [L1166] var_407 = var_407 & mask_SORT_15 [L1167] SORT_3 var_408_arg_0 = var_84; [L1168] SORT_15 var_408_arg_1 = var_407; [L1169] SORT_187 var_408 = ((SORT_187)var_408_arg_0 << 3) | var_408_arg_1; [L1170] var_408 = var_408 & mask_SORT_187 [L1171] SORT_187 var_409_arg_0 = var_408; [L1172] var_409_arg_0 ^= var_409_arg_0 >> 4 [L1173] var_409_arg_0 ^= var_409_arg_0 >> 2 [L1174] var_409_arg_0 ^= var_409_arg_0 >> 1 [L1175] SORT_3 var_409 = var_409_arg_0; [L1176] SORT_3 var_402_arg_0 = var_201; [L1177] SORT_3 var_402_arg_1 = var_207; [L1178] SORT_1 var_402 = ((SORT_1)var_402_arg_0 << 1) | var_402_arg_1; [L1179] var_402 = var_402 & mask_SORT_1 [L1180] SORT_3 var_403_arg_0 = var_205; [L1181] SORT_1 var_403_arg_1 = var_402; [L1182] SORT_15 var_403 = ((SORT_15)var_403_arg_0 << 2) | var_403_arg_1; [L1183] var_403 = var_403 & mask_SORT_15 [L1184] SORT_3 var_404_arg_0 = var_199; [L1185] SORT_15 var_404_arg_1 = var_403; [L1186] SORT_187 var_404 = ((SORT_187)var_404_arg_0 << 3) | var_404_arg_1; [L1187] var_404 = var_404 & mask_SORT_187 [L1188] SORT_187 var_405_arg_0 = var_404; [L1189] var_405_arg_0 ^= var_405_arg_0 >> 4 [L1190] var_405_arg_0 ^= var_405_arg_0 >> 2 [L1191] var_405_arg_0 ^= var_405_arg_0 >> 1 [L1192] SORT_3 var_405 = var_405_arg_0; [L1193] SORT_22 var_389_arg_0 = input_23; [L1194] SORT_22 var_389_arg_1 = var_236; [L1195] SORT_3 var_389 = var_389_arg_0 == var_389_arg_1; [L1196] SORT_22 var_386_arg_0 = input_23; [L1197] SORT_22 var_386_arg_1 = var_272; [L1198] SORT_3 var_386 = var_386_arg_0 == var_386_arg_1; [L1199] SORT_3 var_396_arg_0 = var_389; [L1200] SORT_3 var_396_arg_1 = var_386; [L1201] SORT_1 var_396 = ((SORT_1)var_396_arg_0 << 1) | var_396_arg_1; [L1202] var_396 = var_396 & mask_SORT_1 [L1203] SORT_3 var_397_arg_0 = var_205; [L1204] SORT_1 var_397_arg_1 = var_396; [L1205] SORT_15 var_397 = ((SORT_15)var_397_arg_0 << 2) | var_397_arg_1; [L1206] var_397 = var_397 & mask_SORT_15 [L1207] SORT_3 var_398_arg_0 = var_199; [L1208] SORT_15 var_398_arg_1 = var_397; [L1209] SORT_187 var_398 = ((SORT_187)var_398_arg_0 << 3) | var_398_arg_1; [L1210] var_398 = var_398 & mask_SORT_187 [L1211] SORT_3 var_399_arg_0 = var_82; [L1212] SORT_187 var_399_arg_1 = var_398; [L1213] SORT_22 var_399 = ((SORT_22)var_399_arg_0 << 4) | var_399_arg_1; [L1214] var_399 = var_399 & mask_SORT_22 [L1215] SORT_3 var_400_arg_0 = var_84; [L1216] SORT_22 var_400_arg_1 = var_399; [L1217] SORT_220 var_400 = ((SORT_220)var_400_arg_0 << 5) | var_400_arg_1; [L1218] var_400 = var_400 & mask_SORT_220 [L1219] SORT_220 var_401_arg_0 = var_400; [L1220] var_401_arg_0 ^= var_401_arg_0 >> 4 [L1221] var_401_arg_0 ^= var_401_arg_0 >> 2 [L1222] var_401_arg_0 ^= var_401_arg_0 >> 1 [L1223] SORT_3 var_401 = var_401_arg_0; [L1224] SORT_22 var_385_arg_0 = input_23; [L1225] SORT_22 var_385_arg_1 = var_384; [L1226] SORT_3 var_385 = var_385_arg_0 == var_385_arg_1; [L1227] SORT_3 var_390_arg_0 = var_389; [L1228] SORT_3 var_390_arg_1 = var_385; [L1229] SORT_1 var_390 = ((SORT_1)var_390_arg_0 << 1) | var_390_arg_1; [L1230] var_390 = var_390 & mask_SORT_1 [L1231] SORT_3 var_391_arg_0 = var_201; [L1232] SORT_1 var_391_arg_1 = var_390; [L1233] SORT_15 var_391 = ((SORT_15)var_391_arg_0 << 2) | var_391_arg_1; [L1234] var_391 = var_391 & mask_SORT_15 [L1235] SORT_3 var_392_arg_0 = var_199; [L1236] SORT_15 var_392_arg_1 = var_391; [L1237] SORT_187 var_392 = ((SORT_187)var_392_arg_0 << 3) | var_392_arg_1; [L1238] var_392 = var_392 & mask_SORT_187 [L1239] SORT_3 var_393_arg_0 = var_197; [L1240] SORT_187 var_393_arg_1 = var_392; [L1241] SORT_22 var_393 = ((SORT_22)var_393_arg_0 << 4) | var_393_arg_1; [L1242] var_393 = var_393 & mask_SORT_22 [L1243] SORT_3 var_394_arg_0 = var_84; [L1244] SORT_22 var_394_arg_1 = var_393; [L1245] SORT_220 var_394 = ((SORT_220)var_394_arg_0 << 5) | var_394_arg_1; [L1246] var_394 = var_394 & mask_SORT_220 [L1247] SORT_220 var_395_arg_0 = var_394; [L1248] var_395_arg_0 ^= var_395_arg_0 >> 4 [L1249] var_395_arg_0 ^= var_395_arg_0 >> 2 [L1250] var_395_arg_0 ^= var_395_arg_0 >> 1 [L1251] SORT_3 var_395 = var_395_arg_0; [L1252] var_395 = var_395 & mask_SORT_3 [L1253] SORT_3 var_410_arg_0 = var_401; [L1254] SORT_3 var_410_arg_1 = var_395; [L1255] SORT_1 var_410 = ((SORT_1)var_410_arg_0 << 1) | var_410_arg_1; [L1256] var_410 = var_410 & mask_SORT_1 [L1257] SORT_3 var_411_arg_0 = var_405; [L1258] SORT_1 var_411_arg_1 = var_410; [L1259] SORT_15 var_411 = ((SORT_15)var_411_arg_0 << 2) | var_411_arg_1; [L1260] var_411 = var_411 & mask_SORT_15 [L1261] SORT_3 var_412_arg_0 = var_409; [L1262] SORT_15 var_412_arg_1 = var_411; [L1263] SORT_187 var_412 = ((SORT_187)var_412_arg_0 << 3) | var_412_arg_1; [L1264] var_412 = var_412 & mask_SORT_187 [L1265] SORT_187 var_456_arg_0 = var_412; [L1266] SORT_187 var_456_arg_1 = var_455; [L1267] SORT_3 var_456 = var_456_arg_0 == var_456_arg_1; [L1268] SORT_187 var_453_arg_0 = var_412; [L1269] SORT_187 var_453_arg_1 = var_452; [L1270] SORT_3 var_453 = var_453_arg_0 == var_453_arg_1; [L1271] SORT_3 var_457_arg_0 = var_456; [L1272] SORT_3 var_457_arg_1 = var_453; [L1273] SORT_3 var_457 = var_457_arg_0 | var_457_arg_1; [L1274] var_457 = var_457 & mask_SORT_3 [L1275] SORT_187 var_450_arg_0 = var_412; [L1276] SORT_187 var_450_arg_1 = var_449; [L1277] SORT_3 var_450 = var_450_arg_0 == var_450_arg_1; [L1278] SORT_187 var_460_arg_0 = var_412; [L1279] SORT_187 var_460_arg_1 = var_459; [L1280] SORT_3 var_460 = var_460_arg_0 == var_460_arg_1; [L1281] SORT_3 var_461_arg_0 = var_450; [L1282] SORT_3 var_461_arg_1 = var_460; [L1283] SORT_1 var_461 = ((SORT_1)var_461_arg_0 << 1) | var_461_arg_1; [L1284] var_461 = var_461 & mask_SORT_1 [L1285] SORT_3 var_462_arg_0 = var_457; [L1286] SORT_1 var_462_arg_1 = var_461; [L1287] SORT_15 var_462 = ((SORT_15)var_462_arg_0 << 2) | var_462_arg_1; [L1288] var_462 = var_462 & mask_SORT_15 [L1289] SORT_15 var_463_arg_0 = var_462; [L1290] SORT_3 var_463 = var_463_arg_0 != 0; [L1291] SORT_187 var_446_arg_0 = var_412; [L1292] SORT_187 var_446_arg_1 = var_445; [L1293] SORT_3 var_446 = var_446_arg_0 == var_446_arg_1; [L1294] SORT_187 var_443_arg_0 = var_412; [L1295] SORT_187 var_443_arg_1 = var_442; [L1296] SORT_3 var_443 = var_443_arg_0 == var_443_arg_1; [L1297] SORT_3 var_447_arg_0 = var_446; [L1298] SORT_3 var_447_arg_1 = var_443; [L1299] SORT_3 var_447 = var_447_arg_0 | var_447_arg_1; [L1300] var_447 = var_447 & mask_SORT_3 [L1301] SORT_187 var_440_arg_0 = var_412; [L1302] SORT_187 var_440_arg_1 = var_439; [L1303] SORT_3 var_440 = var_440_arg_0 == var_440_arg_1; [L1304] SORT_187 var_466_arg_0 = var_412; [L1305] SORT_187 var_466_arg_1 = var_465; [L1306] SORT_3 var_466 = var_466_arg_0 == var_466_arg_1; [L1307] SORT_3 var_467_arg_0 = var_440; [L1308] SORT_3 var_467_arg_1 = var_466; [L1309] SORT_1 var_467 = ((SORT_1)var_467_arg_0 << 1) | var_467_arg_1; [L1310] var_467 = var_467 & mask_SORT_1 [L1311] SORT_3 var_468_arg_0 = var_447; [L1312] SORT_1 var_468_arg_1 = var_467; [L1313] SORT_15 var_468 = ((SORT_15)var_468_arg_0 << 2) | var_468_arg_1; [L1314] var_468 = var_468 & mask_SORT_15 [L1315] SORT_3 var_469_arg_0 = var_463; [L1316] SORT_15 var_469_arg_1 = var_468; [L1317] SORT_187 var_469 = ((SORT_187)var_469_arg_0 << 3) | var_469_arg_1; [L1318] var_469 = var_469 & mask_SORT_187 [L1319] SORT_187 var_470_arg_0 = var_469; [L1320] SORT_3 var_470 = var_470_arg_0 != 0; [L1321] SORT_3 var_454_arg_0 = var_453; [L1322] SORT_3 var_454_arg_1 = var_138; [L1323] SORT_3 var_454_arg_2 = var_138; [L1324] EXPR var_454_arg_0 ? var_454_arg_1 : var_454_arg_2 [L1324] SORT_3 var_454 = var_454_arg_0 ? var_454_arg_1 : var_454_arg_2; [L1325] SORT_3 var_451_arg_0 = var_450; [L1326] SORT_3 var_451_arg_1 = var_138; [L1327] SORT_3 var_451_arg_2 = var_138; [L1328] EXPR var_451_arg_0 ? var_451_arg_1 : var_451_arg_2 [L1328] SORT_3 var_451 = var_451_arg_0 ? var_451_arg_1 : var_451_arg_2; [L1329] SORT_3 var_458_arg_0 = var_457; [L1330] SORT_3 var_458_arg_1 = var_454; [L1331] SORT_3 var_458_arg_2 = var_451; [L1332] EXPR var_458_arg_0 ? var_458_arg_1 : var_458_arg_2 [L1332] SORT_3 var_458 = var_458_arg_0 ? var_458_arg_1 : var_458_arg_2; [L1333] SORT_3 var_444_arg_0 = var_443; [L1334] SORT_3 var_444_arg_1 = var_42; [L1335] SORT_3 var_444_arg_2 = var_42; [L1336] EXPR var_444_arg_0 ? var_444_arg_1 : var_444_arg_2 [L1336] SORT_3 var_444 = var_444_arg_0 ? var_444_arg_1 : var_444_arg_2; [L1337] SORT_3 var_441_arg_0 = var_440; [L1338] SORT_3 var_441_arg_1 = var_42; [L1339] SORT_3 var_441_arg_2 = var_42; [L1340] EXPR var_441_arg_0 ? var_441_arg_1 : var_441_arg_2 [L1340] SORT_3 var_441 = var_441_arg_0 ? var_441_arg_1 : var_441_arg_2; [L1341] SORT_3 var_448_arg_0 = var_447; [L1342] SORT_3 var_448_arg_1 = var_444; [L1343] SORT_3 var_448_arg_2 = var_441; [L1344] EXPR var_448_arg_0 ? var_448_arg_1 : var_448_arg_2 [L1344] SORT_3 var_448 = var_448_arg_0 ? var_448_arg_1 : var_448_arg_2; [L1345] SORT_3 var_464_arg_0 = var_463; [L1346] SORT_3 var_464_arg_1 = var_458; [L1347] SORT_3 var_464_arg_2 = var_448; [L1348] EXPR var_464_arg_0 ? var_464_arg_1 : var_464_arg_2 [L1348] SORT_3 var_464 = var_464_arg_0 ? var_464_arg_1 : var_464_arg_2; [L1349] SORT_187 var_430_arg_0 = var_412; [L1350] SORT_187 var_430_arg_1 = var_429; [L1351] SORT_3 var_430 = var_430_arg_0 == var_430_arg_1; [L1352] SORT_187 var_427_arg_0 = var_412; [L1353] SORT_187 var_427_arg_1 = var_426; [L1354] SORT_3 var_427 = var_427_arg_0 == var_427_arg_1; [L1355] SORT_3 var_431_arg_0 = var_430; [L1356] SORT_3 var_431_arg_1 = var_427; [L1357] SORT_3 var_431 = var_431_arg_0 | var_431_arg_1; [L1358] var_431 = var_431 & mask_SORT_3 [L1359] SORT_187 var_424_arg_0 = var_412; [L1360] SORT_187 var_424_arg_1 = var_423; [L1361] SORT_3 var_424 = var_424_arg_0 == var_424_arg_1; [L1362] SORT_187 var_434_arg_0 = var_412; [L1363] SORT_187 var_434_arg_1 = var_433; [L1364] SORT_3 var_434 = var_434_arg_0 == var_434_arg_1; [L1365] SORT_3 var_435_arg_0 = var_424; [L1366] SORT_3 var_435_arg_1 = var_434; [L1367] SORT_1 var_435 = ((SORT_1)var_435_arg_0 << 1) | var_435_arg_1; [L1368] var_435 = var_435 & mask_SORT_1 [L1369] SORT_3 var_436_arg_0 = var_431; [L1370] SORT_1 var_436_arg_1 = var_435; [L1371] SORT_15 var_436 = ((SORT_15)var_436_arg_0 << 2) | var_436_arg_1; [L1372] var_436 = var_436 & mask_SORT_15 [L1373] SORT_15 var_437_arg_0 = var_436; [L1374] SORT_3 var_437 = var_437_arg_0 != 0; [L1375] SORT_3 var_428_arg_0 = var_427; [L1376] SORT_3 var_428_arg_1 = var_42; [L1377] SORT_3 var_428_arg_2 = var_42; [L1378] EXPR var_428_arg_0 ? var_428_arg_1 : var_428_arg_2 [L1378] SORT_3 var_428 = var_428_arg_0 ? var_428_arg_1 : var_428_arg_2; [L1379] SORT_3 var_425_arg_0 = var_424; [L1380] SORT_3 var_425_arg_1 = var_42; [L1381] SORT_3 var_425_arg_2 = var_42; [L1382] EXPR var_425_arg_0 ? var_425_arg_1 : var_425_arg_2 [L1382] SORT_3 var_425 = var_425_arg_0 ? var_425_arg_1 : var_425_arg_2; [L1383] SORT_3 var_432_arg_0 = var_431; [L1384] SORT_3 var_432_arg_1 = var_428; [L1385] SORT_3 var_432_arg_2 = var_425; [L1386] EXPR var_432_arg_0 ? var_432_arg_1 : var_432_arg_2 [L1386] SORT_3 var_432 = var_432_arg_0 ? var_432_arg_1 : var_432_arg_2; [L1387] SORT_187 var_420_arg_0 = var_412; [L1388] SORT_187 var_420_arg_1 = var_419; [L1389] SORT_3 var_420 = var_420_arg_0 == var_420_arg_1; [L1390] SORT_187 var_417_arg_0 = var_412; [L1391] SORT_187 var_417_arg_1 = var_416; [L1392] SORT_3 var_417 = var_417_arg_0 == var_417_arg_1; [L1393] SORT_3 var_421_arg_0 = var_420; [L1394] SORT_3 var_421_arg_1 = var_417; [L1395] SORT_3 var_421 = var_421_arg_0 | var_421_arg_1; [L1396] var_421 = var_421 & mask_SORT_3 [L1397] SORT_3 var_418_arg_0 = var_417; [L1398] SORT_3 var_418_arg_1 = var_42; [L1399] SORT_3 var_418_arg_2 = var_42; [L1400] EXPR var_418_arg_0 ? var_418_arg_1 : var_418_arg_2 [L1400] SORT_3 var_418 = var_418_arg_0 ? var_418_arg_1 : var_418_arg_2; [L1401] SORT_187 var_414_arg_0 = var_412; [L1402] SORT_187 var_414_arg_1 = var_413; [L1403] SORT_3 var_414 = var_414_arg_0 == var_414_arg_1; [L1404] SORT_3 var_415_arg_0 = var_414; [L1405] SORT_3 var_415_arg_1 = var_42; [L1406] SORT_3 var_415_arg_2 = var_138; [L1407] EXPR var_415_arg_0 ? var_415_arg_1 : var_415_arg_2 [L1407] SORT_3 var_415 = var_415_arg_0 ? var_415_arg_1 : var_415_arg_2; [L1408] SORT_3 var_422_arg_0 = var_421; [L1409] SORT_3 var_422_arg_1 = var_418; [L1410] SORT_3 var_422_arg_2 = var_415; [L1411] EXPR var_422_arg_0 ? var_422_arg_1 : var_422_arg_2 [L1411] SORT_3 var_422 = var_422_arg_0 ? var_422_arg_1 : var_422_arg_2; [L1412] SORT_3 var_438_arg_0 = var_437; [L1413] SORT_3 var_438_arg_1 = var_432; [L1414] SORT_3 var_438_arg_2 = var_422; [L1415] EXPR var_438_arg_0 ? var_438_arg_1 : var_438_arg_2 [L1415] SORT_3 var_438 = var_438_arg_0 ? var_438_arg_1 : var_438_arg_2; [L1416] SORT_3 var_471_arg_0 = var_470; [L1417] SORT_3 var_471_arg_1 = var_464; [L1418] SORT_3 var_471_arg_2 = var_438; [L1419] EXPR var_471_arg_0 ? var_471_arg_1 : var_471_arg_2 [L1419] SORT_3 var_471 = var_471_arg_0 ? var_471_arg_1 : var_471_arg_2; [L1420] SORT_3 var_387_arg_0 = var_386; [L1421] SORT_3 var_387_arg_1 = var_385; [L1422] SORT_1 var_387 = ((SORT_1)var_387_arg_0 << 1) | var_387_arg_1; [L1423] var_387 = var_387 & mask_SORT_1 [L1424] SORT_1 var_388_arg_0 = var_387; [L1425] SORT_3 var_388 = var_388_arg_0 != 0; [L1426] SORT_3 var_472_arg_0 = var_389; [L1427] SORT_3 var_472_arg_1 = var_388; [L1428] SORT_1 var_472 = ((SORT_1)var_472_arg_0 << 1) | var_472_arg_1; [L1429] var_472 = var_472 & mask_SORT_1 [L1430] SORT_3 var_473_arg_0 = var_471; [L1431] SORT_1 var_473_arg_1 = var_472; [L1432] SORT_15 var_473 = ((SORT_15)var_473_arg_0 << 2) | var_473_arg_1; [L1433] var_473 = var_473 & mask_SORT_15 [L1434] SORT_15 var_474_arg_0 = var_473; [L1435] SORT_3 var_474 = var_474_arg_0 != 0; [L1436] SORT_3 var_477_arg_0 = var_476; [L1437] SORT_3 var_477_arg_1 = var_474; [L1438] SORT_1 var_477 = ((SORT_1)var_477_arg_0 << 1) | var_477_arg_1; [L1439] var_477 = var_477 & mask_SORT_1 [L1440] SORT_1 var_478_arg_0 = var_477; [L1441] SORT_3 var_478 = var_478_arg_0 != 0; [L1442] SORT_3 var_481_arg_0 = var_480; [L1443] SORT_3 var_481_arg_1 = var_478; [L1444] SORT_1 var_481 = ((SORT_1)var_481_arg_0 << 1) | var_481_arg_1; [L1445] var_481 = var_481 & mask_SORT_1 [L1446] SORT_1 var_482_arg_0 = var_481; [L1447] SORT_3 var_482 = var_482_arg_0 != 0; [L1448] SORT_3 var_485_arg_0 = var_484; [L1449] SORT_3 var_485_arg_1 = var_482; [L1450] SORT_1 var_485 = ((SORT_1)var_485_arg_0 << 1) | var_485_arg_1; [L1451] var_485 = var_485 & mask_SORT_1 [L1452] SORT_1 var_486_arg_0 = var_485; [L1453] SORT_3 var_486 = var_486_arg_0 != 0; [L1454] SORT_3 var_495_arg_0 = var_484; [L1455] SORT_3 var_495_arg_1 = var_486; [L1456] SORT_1 var_495 = ((SORT_1)var_495_arg_0 << 1) | var_495_arg_1; [L1457] var_495 = var_495 & mask_SORT_1 [L1458] SORT_3 var_496_arg_0 = var_494; [L1459] SORT_1 var_496_arg_1 = var_495; [L1460] SORT_15 var_496 = ((SORT_15)var_496_arg_0 << 2) | var_496_arg_1; [L1461] var_496 = var_496 & mask_SORT_15 [L1462] SORT_3 var_497_arg_0 = var_380; [L1463] SORT_15 var_497_arg_1 = var_496; [L1464] SORT_187 var_497 = ((SORT_187)var_497_arg_0 << 3) | var_497_arg_1; [L1465] var_497 = var_497 & mask_SORT_187 [L1466] SORT_187 var_498_arg_0 = var_497; [L1467] SORT_3 var_498 = var_498_arg_0 == mask_SORT_187; [L1468] SORT_7 var_487_arg_0 = var_130; [L1469] SORT_3 var_487 = var_487_arg_0 >> 31; [L1470] SORT_3 var_488_arg_0 = var_487; [L1471] SORT_3 var_488 = ~var_488_arg_0; [L1472] SORT_3 var_489_arg_0 = var_484; [L1473] SORT_3 var_489_arg_1 = var_486; [L1474] SORT_1 var_489 = ((SORT_1)var_489_arg_0 << 1) | var_489_arg_1; [L1475] var_489 = var_489 & mask_SORT_1 [L1476] SORT_3 var_490_arg_0 = var_488; [L1477] SORT_1 var_490_arg_1 = var_489; [L1478] SORT_15 var_490 = ((SORT_15)var_490_arg_0 << 2) | var_490_arg_1; [L1479] var_490 = var_490 & mask_SORT_15 [L1480] SORT_3 var_491_arg_0 = var_374; [L1481] SORT_15 var_491_arg_1 = var_490; [L1482] SORT_187 var_491 = ((SORT_187)var_491_arg_0 << 3) | var_491_arg_1; [L1483] var_491 = var_491 & mask_SORT_187 [L1484] SORT_187 var_492_arg_0 = var_491; [L1485] SORT_3 var_492 = var_492_arg_0 == mask_SORT_187; [L1486] SORT_7 var_378_arg_0 = var_130; [L1487] SORT_3 var_378 = var_378_arg_0 >> 0; [L1488] SORT_3 var_379_arg_0 = var_378; [L1489] SORT_3 var_379 = ~var_379_arg_0; [L1490] SORT_3 var_85_arg_0 = var_84; [L1491] SORT_3 var_85_arg_1 = var_82; [L1492] SORT_1 var_85 = ((SORT_1)var_85_arg_0 << 1) | var_85_arg_1; [L1493] var_85 = var_85 & mask_SORT_1 [L1494] SORT_1 var_86_arg_0 = var_85; [L1495] SORT_3 var_86 = var_86_arg_0 != 0; [L1496] SORT_3 var_381_arg_0 = var_379; [L1497] SORT_3 var_381_arg_1 = var_86; [L1498] SORT_1 var_381 = ((SORT_1)var_381_arg_0 << 1) | var_381_arg_1; [L1499] var_381 = var_381 & mask_SORT_1 [L1500] SORT_3 var_382_arg_0 = var_380; [L1501] SORT_1 var_382_arg_1 = var_381; [L1502] SORT_15 var_382 = ((SORT_15)var_382_arg_0 << 2) | var_382_arg_1; [L1503] var_382 = var_382 & mask_SORT_15 [L1504] SORT_15 var_383_arg_0 = var_382; [L1505] SORT_3 var_383 = var_383_arg_0 == mask_SORT_15; [L1506] SORT_7 var_131_arg_0 = var_130; [L1507] SORT_3 var_131 = var_131_arg_0 >> 16; [L1508] SORT_3 var_132_arg_0 = var_131; [L1509] SORT_3 var_132 = ~var_132_arg_0; [L1510] SORT_3 var_375_arg_0 = var_132; [L1511] SORT_3 var_375_arg_1 = var_86; [L1512] SORT_1 var_375 = ((SORT_1)var_375_arg_0 << 1) | var_375_arg_1; [L1513] var_375 = var_375 & mask_SORT_1 [L1514] SORT_3 var_376_arg_0 = var_374; [L1515] SORT_1 var_376_arg_1 = var_375; [L1516] SORT_15 var_376 = ((SORT_15)var_376_arg_0 << 2) | var_376_arg_1; [L1517] var_376 = var_376 & mask_SORT_15 [L1518] SORT_15 var_377_arg_0 = var_376; [L1519] SORT_3 var_377 = var_377_arg_0 == mask_SORT_15; [L1520] SORT_3 var_499_arg_0 = var_383; [L1521] SORT_3 var_499_arg_1 = var_377; [L1522] SORT_1 var_499 = ((SORT_1)var_499_arg_0 << 1) | var_499_arg_1; [L1523] var_499 = var_499 & mask_SORT_1 [L1524] SORT_3 var_500_arg_0 = var_492; [L1525] SORT_1 var_500_arg_1 = var_499; [L1526] SORT_15 var_500 = ((SORT_15)var_500_arg_0 << 2) | var_500_arg_1; [L1527] var_500 = var_500 & mask_SORT_15 [L1528] SORT_3 var_501_arg_0 = var_498; [L1529] SORT_15 var_501_arg_1 = var_500; [L1530] SORT_187 var_501 = ((SORT_187)var_501_arg_0 << 3) | var_501_arg_1; [L1531] var_501 = var_501 & mask_SORT_187 [L1532] SORT_187 var_502_arg_0 = var_501; [L1533] SORT_3 var_502 = var_502_arg_0 != 0; [L1534] SORT_3 var_505_arg_0 = var_504; [L1535] SORT_3 var_505_arg_1 = var_502; [L1536] SORT_1 var_505 = ((SORT_1)var_505_arg_0 << 1) | var_505_arg_1; [L1537] var_505 = var_505 & mask_SORT_1 [L1538] SORT_1 var_506_arg_0 = var_505; [L1539] SORT_3 var_506 = var_506_arg_0 == mask_SORT_1; [L1540] SORT_1 var_77_arg_0 = input_2; [L1541] SORT_1 var_77_arg_1 = var_76; [L1542] SORT_3 var_77 = var_77_arg_0 == var_77_arg_1; [L1543] SORT_3 var_54_arg_0 = state_52; [L1544] SORT_5 var_54_arg_1 = state_50; [L1545] SORT_5 var_54_arg_2 = input_30; [L1546] EXPR var_54_arg_0 ? var_54_arg_1 : var_54_arg_2 [L1546] SORT_5 var_54 = var_54_arg_0 ? var_54_arg_1 : var_54_arg_2; [L1547] SORT_3 var_60_arg_0 = var_59; [L1548] SORT_5 var_60_arg_1 = var_54; [L1549] SORT_5 var_60_arg_2 = var_49; [L1550] EXPR var_60_arg_0 ? var_60_arg_1 : var_60_arg_2 [L1550] SORT_5 var_60 = var_60_arg_0 ? var_60_arg_1 : var_60_arg_2; [L1551] SORT_3 var_62_arg_0 = var_61; [L1552] SORT_5 var_62_arg_1 = var_49; [L1553] SORT_5 var_62_arg_2 = var_60; [L1554] EXPR var_62_arg_0 ? var_62_arg_1 : var_62_arg_2 [L1554] SORT_5 var_62 = var_62_arg_0 ? var_62_arg_1 : var_62_arg_2; [L1555] SORT_3 var_63_arg_0 = input_13; [L1556] SORT_5 var_63_arg_1 = input_6; [L1557] SORT_5 var_63_arg_2 = var_62; [L1558] EXPR var_63_arg_0 ? var_63_arg_1 : var_63_arg_2 [L1558] SORT_5 var_63 = var_63_arg_0 ? var_63_arg_1 : var_63_arg_2; [L1559] var_63 = var_63 & mask_SORT_5 [L1560] SORT_3 var_68_arg_0 = state_52; [L1561] SORT_15 var_68_arg_1 = state_66; [L1562] SORT_15 var_68_arg_2 = input_26; [L1563] EXPR var_68_arg_0 ? var_68_arg_1 : var_68_arg_2 [L1563] SORT_15 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L1564] SORT_3 var_69_arg_0 = var_59; [L1565] SORT_15 var_69_arg_1 = var_68; [L1566] SORT_15 var_69_arg_2 = var_65; [L1567] EXPR var_69_arg_0 ? var_69_arg_1 : var_69_arg_2 [L1567] SORT_15 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L1568] SORT_3 var_70_arg_0 = var_61; [L1569] SORT_15 var_70_arg_1 = var_65; [L1570] SORT_15 var_70_arg_2 = var_69; [L1571] EXPR var_70_arg_0 ? var_70_arg_1 : var_70_arg_2 [L1571] SORT_15 var_70 = var_70_arg_0 ? var_70_arg_1 : var_70_arg_2; [L1572] SORT_15 var_71_arg_0 = var_64; [L1573] SORT_15 var_71_arg_1 = var_70; [L1574] SORT_15 var_71 = var_71_arg_0 - var_71_arg_1; [L1575] SORT_15 var_72_arg_0 = var_71; [L1576] var_72_arg_0 = var_72_arg_0 & mask_SORT_15 [L1577] SORT_5 var_72 = var_72_arg_0; [L1578] SORT_5 var_73_arg_0 = var_63; [L1579] SORT_5 var_73_arg_1 = var_72; [L1580] SORT_5 var_73 = var_73_arg_0 >> var_73_arg_1; [L1581] SORT_5 var_74_arg_0 = var_73; [L1582] SORT_3 var_74 = var_74_arg_0 >> 0; [L1583] SORT_3 var_75_arg_0 = var_74; [L1584] SORT_3 var_75 = ~var_75_arg_0; [L1585] SORT_3 var_48_arg_0 = var_47; [L1586] SORT_3 var_48 = ~var_48_arg_0; [L1587] var_48 = var_48 & mask_SORT_3 [L1588] SORT_3 var_78_arg_0 = var_75; [L1589] SORT_3 var_78_arg_1 = var_48; [L1590] SORT_1 var_78 = ((SORT_1)var_78_arg_0 << 1) | var_78_arg_1; [L1591] var_78 = var_78 & mask_SORT_1 [L1592] SORT_3 var_79_arg_0 = var_77; [L1593] SORT_1 var_79_arg_1 = var_78; [L1594] SORT_15 var_79 = ((SORT_15)var_79_arg_0 << 2) | var_79_arg_1; [L1595] var_79 = var_79 & mask_SORT_15 [L1596] SORT_15 var_80_arg_0 = var_79; [L1597] SORT_3 var_80 = var_80_arg_0 == mask_SORT_15; [L1598] SORT_3 var_507_arg_0 = var_506; [L1599] SORT_3 var_507_arg_1 = var_80; [L1600] SORT_1 var_507 = ((SORT_1)var_507_arg_0 << 1) | var_507_arg_1; [L1601] var_507 = var_507 & mask_SORT_1 [L1602] SORT_1 var_508_arg_0 = var_507; [L1603] SORT_3 var_508 = var_508_arg_0 != 0; [L1604] SORT_3 var_526_arg_0 = var_525; [L1605] SORT_3 var_526_arg_1 = var_508; [L1606] SORT_1 var_526 = ((SORT_1)var_526_arg_0 << 1) | var_526_arg_1; [L1607] var_526 = var_526 & mask_SORT_1 [L1608] SORT_1 var_527_arg_0 = var_526; [L1609] SORT_3 var_527 = var_527_arg_0 == mask_SORT_1; [L1610] SORT_3 var_549_arg_0 = state_52; [L1611] SORT_7 var_549_arg_1 = state_547; [L1612] SORT_7 var_549_arg_2 = input_25; [L1613] EXPR var_549_arg_0 ? var_549_arg_1 : var_549_arg_2 [L1613] SORT_7 var_549 = var_549_arg_0 ? var_549_arg_1 : var_549_arg_2; [L1614] SORT_3 var_550_arg_0 = var_59; [L1615] SORT_7 var_550_arg_1 = var_549; [L1616] SORT_7 var_550_arg_2 = var_87; [L1617] EXPR var_550_arg_0 ? var_550_arg_1 : var_550_arg_2 [L1617] SORT_7 var_550 = var_550_arg_0 ? var_550_arg_1 : var_550_arg_2; [L1618] SORT_3 var_551_arg_0 = var_61; [L1619] SORT_7 var_551_arg_1 = var_87; [L1620] SORT_7 var_551_arg_2 = var_550; [L1621] EXPR var_551_arg_0 ? var_551_arg_1 : var_551_arg_2 [L1621] SORT_7 var_551 = var_551_arg_0 ? var_551_arg_1 : var_551_arg_2; [L1622] SORT_3 var_552_arg_0 = var_116; [L1623] SORT_7 var_552_arg_1 = var_551; [L1624] SORT_7 var_552_arg_2 = var_87; [L1625] EXPR var_552_arg_0 ? var_552_arg_1 : var_552_arg_2 [L1625] SORT_7 var_552 = var_552_arg_0 ? var_552_arg_1 : var_552_arg_2; [L1626] SORT_3 var_553_arg_0 = var_129; [L1627] SORT_7 var_553_arg_1 = input_8; [L1628] SORT_7 var_553_arg_2 = var_552; [L1629] EXPR var_553_arg_0 ? var_553_arg_1 : var_553_arg_2 [L1629] SORT_7 var_553 = var_553_arg_0 ? var_553_arg_1 : var_553_arg_2; [L1630] SORT_7 var_570_arg_0 = var_553; [L1631] SORT_3 var_570 = var_570_arg_0 >> 15; [L1632] SORT_3 var_571_arg_0 = var_570; [L1633] SORT_3 var_571 = ~var_571_arg_0; [L1634] SORT_3 var_572_arg_0 = var_484; [L1635] SORT_3 var_572_arg_1 = var_486; [L1636] SORT_1 var_572 = ((SORT_1)var_572_arg_0 << 1) | var_572_arg_1; [L1637] var_572 = var_572 & mask_SORT_1 [L1638] SORT_3 var_573_arg_0 = var_571; [L1639] SORT_1 var_573_arg_1 = var_572; [L1640] SORT_15 var_573 = ((SORT_15)var_573_arg_0 << 2) | var_573_arg_1; [L1641] var_573 = var_573 & mask_SORT_15 [L1642] SORT_3 var_574_arg_0 = var_380; [L1643] SORT_15 var_574_arg_1 = var_573; [L1644] SORT_187 var_574 = ((SORT_187)var_574_arg_0 << 3) | var_574_arg_1; [L1645] var_574 = var_574 & mask_SORT_187 [L1646] SORT_187 var_575_arg_0 = var_574; [L1647] SORT_3 var_575 = var_575_arg_0 == mask_SORT_187; [L1648] SORT_7 var_564_arg_0 = var_553; [L1649] SORT_3 var_564 = var_564_arg_0 >> 31; [L1650] SORT_3 var_565_arg_0 = var_564; [L1651] SORT_3 var_565 = ~var_565_arg_0; [L1652] SORT_3 var_566_arg_0 = var_484; [L1653] SORT_3 var_566_arg_1 = var_486; [L1654] SORT_1 var_566 = ((SORT_1)var_566_arg_0 << 1) | var_566_arg_1; [L1655] var_566 = var_566 & mask_SORT_1 [L1656] SORT_3 var_567_arg_0 = var_565; [L1657] SORT_1 var_567_arg_1 = var_566; [L1658] SORT_15 var_567 = ((SORT_15)var_567_arg_0 << 2) | var_567_arg_1; [L1659] var_567 = var_567 & mask_SORT_15 [L1660] SORT_3 var_568_arg_0 = var_374; [L1661] SORT_15 var_568_arg_1 = var_567; [L1662] SORT_187 var_568 = ((SORT_187)var_568_arg_0 << 3) | var_568_arg_1; [L1663] var_568 = var_568 & mask_SORT_187 [L1664] SORT_187 var_569_arg_0 = var_568; [L1665] SORT_3 var_569 = var_569_arg_0 == mask_SORT_187; [L1666] SORT_7 var_559_arg_0 = var_553; [L1667] SORT_3 var_559 = var_559_arg_0 >> 0; [L1668] SORT_3 var_560_arg_0 = var_559; [L1669] SORT_3 var_560 = ~var_560_arg_0; [L1670] SORT_3 var_561_arg_0 = var_560; [L1671] SORT_3 var_561_arg_1 = var_86; [L1672] SORT_1 var_561 = ((SORT_1)var_561_arg_0 << 1) | var_561_arg_1; [L1673] var_561 = var_561 & mask_SORT_1 [L1674] SORT_3 var_562_arg_0 = var_380; [L1675] SORT_1 var_562_arg_1 = var_561; [L1676] SORT_15 var_562 = ((SORT_15)var_562_arg_0 << 2) | var_562_arg_1; [L1677] var_562 = var_562 & mask_SORT_15 [L1678] SORT_15 var_563_arg_0 = var_562; [L1679] SORT_3 var_563 = var_563_arg_0 == mask_SORT_15; [L1680] SORT_7 var_554_arg_0 = var_553; [L1681] SORT_3 var_554 = var_554_arg_0 >> 16; [L1682] SORT_3 var_555_arg_0 = var_554; [L1683] SORT_3 var_555 = ~var_555_arg_0; [L1684] SORT_3 var_556_arg_0 = var_555; [L1685] SORT_3 var_556_arg_1 = var_86; [L1686] SORT_1 var_556 = ((SORT_1)var_556_arg_0 << 1) | var_556_arg_1; [L1687] var_556 = var_556 & mask_SORT_1 [L1688] SORT_3 var_557_arg_0 = var_374; [L1689] SORT_1 var_557_arg_1 = var_556; [L1690] SORT_15 var_557 = ((SORT_15)var_557_arg_0 << 2) | var_557_arg_1; [L1691] var_557 = var_557 & mask_SORT_15 [L1692] SORT_15 var_558_arg_0 = var_557; [L1693] SORT_3 var_558 = var_558_arg_0 == mask_SORT_15; [L1694] SORT_3 var_576_arg_0 = var_563; [L1695] SORT_3 var_576_arg_1 = var_558; [L1696] SORT_1 var_576 = ((SORT_1)var_576_arg_0 << 1) | var_576_arg_1; [L1697] var_576 = var_576 & mask_SORT_1 [L1698] SORT_3 var_577_arg_0 = var_569; [L1699] SORT_1 var_577_arg_1 = var_576; [L1700] SORT_15 var_577 = ((SORT_15)var_577_arg_0 << 2) | var_577_arg_1; [L1701] var_577 = var_577 & mask_SORT_15 [L1702] SORT_3 var_578_arg_0 = var_575; [L1703] SORT_15 var_578_arg_1 = var_577; [L1704] SORT_187 var_578 = ((SORT_187)var_578_arg_0 << 3) | var_578_arg_1; [L1705] var_578 = var_578 & mask_SORT_187 [L1706] SORT_187 var_579_arg_0 = var_578; [L1707] SORT_3 var_579 = var_579_arg_0 != 0; [L1708] SORT_3 var_580_arg_0 = var_504; [L1709] SORT_3 var_580_arg_1 = var_579; [L1710] SORT_1 var_580 = ((SORT_1)var_580_arg_0 << 1) | var_580_arg_1; [L1711] var_580 = var_580 & mask_SORT_1 [L1712] SORT_1 var_581_arg_0 = var_580; [L1713] SORT_3 var_581 = var_581_arg_0 == mask_SORT_1; [L1714] SORT_3 var_530_arg_0 = state_52; [L1715] SORT_5 var_530_arg_1 = state_528; [L1716] SORT_5 var_530_arg_2 = input_30; [L1717] EXPR var_530_arg_0 ? var_530_arg_1 : var_530_arg_2 [L1717] SORT_5 var_530 = var_530_arg_0 ? var_530_arg_1 : var_530_arg_2; [L1718] SORT_3 var_531_arg_0 = var_59; [L1719] SORT_5 var_531_arg_1 = var_530; [L1720] SORT_5 var_531_arg_2 = var_49; [L1721] EXPR var_531_arg_0 ? var_531_arg_1 : var_531_arg_2 [L1721] SORT_5 var_531 = var_531_arg_0 ? var_531_arg_1 : var_531_arg_2; [L1722] SORT_3 var_532_arg_0 = var_61; [L1723] SORT_5 var_532_arg_1 = var_49; [L1724] SORT_5 var_532_arg_2 = var_531; [L1725] EXPR var_532_arg_0 ? var_532_arg_1 : var_532_arg_2 [L1725] SORT_5 var_532 = var_532_arg_0 ? var_532_arg_1 : var_532_arg_2; [L1726] SORT_3 var_533_arg_0 = input_13; [L1727] SORT_5 var_533_arg_1 = input_6; [L1728] SORT_5 var_533_arg_2 = var_532; [L1729] EXPR var_533_arg_0 ? var_533_arg_1 : var_533_arg_2 [L1729] SORT_5 var_533 = var_533_arg_0 ? var_533_arg_1 : var_533_arg_2; [L1730] var_533 = var_533 & mask_SORT_5 [L1731] SORT_3 var_536_arg_0 = state_52; [L1732] SORT_15 var_536_arg_1 = state_534; [L1733] SORT_15 var_536_arg_2 = input_26; [L1734] EXPR var_536_arg_0 ? var_536_arg_1 : var_536_arg_2 [L1734] SORT_15 var_536 = var_536_arg_0 ? var_536_arg_1 : var_536_arg_2; [L1735] SORT_3 var_537_arg_0 = var_59; [L1736] SORT_15 var_537_arg_1 = var_536; [L1737] SORT_15 var_537_arg_2 = var_65; [L1738] EXPR var_537_arg_0 ? var_537_arg_1 : var_537_arg_2 [L1738] SORT_15 var_537 = var_537_arg_0 ? var_537_arg_1 : var_537_arg_2; [L1739] SORT_3 var_538_arg_0 = var_61; [L1740] SORT_15 var_538_arg_1 = var_65; [L1741] SORT_15 var_538_arg_2 = var_537; [L1742] EXPR var_538_arg_0 ? var_538_arg_1 : var_538_arg_2 [L1742] SORT_15 var_538 = var_538_arg_0 ? var_538_arg_1 : var_538_arg_2; [L1743] SORT_15 var_539_arg_0 = var_64; [L1744] SORT_15 var_539_arg_1 = var_538; [L1745] SORT_15 var_539 = var_539_arg_0 - var_539_arg_1; [L1746] SORT_15 var_540_arg_0 = var_539; [L1747] var_540_arg_0 = var_540_arg_0 & mask_SORT_15 [L1748] SORT_5 var_540 = var_540_arg_0; [L1749] SORT_5 var_541_arg_0 = var_533; [L1750] SORT_5 var_541_arg_1 = var_540; [L1751] SORT_5 var_541 = var_541_arg_0 >> var_541_arg_1; [L1752] SORT_5 var_542_arg_0 = var_541; [L1753] SORT_3 var_542 = var_542_arg_0 >> 0; [L1754] SORT_3 var_543_arg_0 = var_542; [L1755] SORT_3 var_543 = ~var_543_arg_0; [L1756] SORT_3 var_544_arg_0 = var_543; [L1757] SORT_3 var_544_arg_1 = var_48; [L1758] SORT_1 var_544 = ((SORT_1)var_544_arg_0 << 1) | var_544_arg_1; [L1759] var_544 = var_544 & mask_SORT_1 [L1760] SORT_3 var_545_arg_0 = var_77; [L1761] SORT_1 var_545_arg_1 = var_544; [L1762] SORT_15 var_545 = ((SORT_15)var_545_arg_0 << 2) | var_545_arg_1; [L1763] var_545 = var_545 & mask_SORT_15 [L1764] SORT_15 var_546_arg_0 = var_545; [L1765] SORT_3 var_546 = var_546_arg_0 == mask_SORT_15; [L1766] SORT_3 var_582_arg_0 = var_581; [L1767] SORT_3 var_582_arg_1 = var_546; [L1768] SORT_1 var_582 = ((SORT_1)var_582_arg_0 << 1) | var_582_arg_1; [L1769] var_582 = var_582 & mask_SORT_1 [L1770] SORT_1 var_583_arg_0 = var_582; [L1771] SORT_3 var_583 = var_583_arg_0 != 0; [L1772] SORT_3 var_584_arg_0 = var_525; [L1773] SORT_3 var_584_arg_1 = var_583; [L1774] SORT_1 var_584 = ((SORT_1)var_584_arg_0 << 1) | var_584_arg_1; [L1775] var_584 = var_584 & mask_SORT_1 [L1776] SORT_1 var_585_arg_0 = var_584; [L1777] SORT_3 var_585 = var_585_arg_0 == mask_SORT_1; [L1778] SORT_3 var_586_arg_0 = var_527; [L1779] SORT_3 var_586_arg_1 = var_585; [L1780] SORT_3 var_586 = var_586_arg_0 == var_586_arg_1; [L1781] SORT_3 var_587_arg_0 = var_45; [L1782] SORT_3 var_587_arg_1 = var_586; [L1783] SORT_3 var_587 = var_587_arg_0 | var_587_arg_1; [L1784] SORT_3 var_590_arg_0 = var_587; [L1785] SORT_3 var_590 = ~var_590_arg_0; [L1786] SORT_3 var_591_arg_0 = var_138; [L1787] SORT_3 var_591_arg_1 = var_590; [L1788] SORT_3 var_591 = var_591_arg_0 & var_591_arg_1; [L1789] var_591 = var_591 & mask_SORT_3 [L1790] SORT_3 bad_592_arg_0 = var_591; [L1791] CALL __VERIFIER_assert(!(bad_592_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 380.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 195.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 04:07:13,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 507812183a4c101cb7344945334977285b221916337ee39c7956ea5651efd5cd --- 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-5e519f3 [2022-11-03 04:07:16,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:07:16,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:07:16,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:07:16,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:07:16,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:07:16,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:07:16,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:07:16,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:07:16,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:07:16,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:07:16,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:07:16,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:07:16,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:07:16,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:07:16,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:07:16,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:07:16,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:07:16,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:07:16,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:07:16,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:07:16,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:07:16,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:07:16,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:07:16,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:07:16,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:07:16,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:07:16,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:07:16,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:07:16,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:07:16,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:07:16,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:07:16,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:07:16,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:07:16,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:07:16,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:07:16,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:07:16,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:07:16,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:07:16,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:07:16,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:07:16,563 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 04:07:16,610 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:07:16,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:07:16,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:07:16,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:07:16,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:07:16,616 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:07:16,616 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:07:16,617 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:07:16,617 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:07:16,617 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:07:16,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:07:16,619 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:07:16,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:07:16,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:07:16,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:07:16,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:07:16,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:07:16,622 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 04:07:16,622 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 04:07:16,622 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 04:07:16,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:07:16,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:07:16,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:07:16,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:07:16,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 04:07:16,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:07:16,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:07:16,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:07:16,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:07:16,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:07:16,625 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 04:07:16,625 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:16,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:07:16,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:07:16,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 04:07:16,626 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 507812183a4c101cb7344945334977285b221916337ee39c7956ea5651efd5cd [2022-11-03 04:07:17,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:07:17,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:07:17,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:07:17,047 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:07:17,048 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:07:17,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal4.c [2022-11-03 04:07:17,130 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/data/860bb2e6b/8a971f1020e84027bea74964d52bead1/FLAGbeeaaba84 [2022-11-03 04:07:17,930 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:07:17,931 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal4.c [2022-11-03 04:07:17,952 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/data/860bb2e6b/8a971f1020e84027bea74964d52bead1/FLAGbeeaaba84 [2022-11-03 04:07:18,086 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/data/860bb2e6b/8a971f1020e84027bea74964d52bead1 [2022-11-03 04:07:18,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:07:18,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:07:18,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:07:18,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:07:18,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:07:18,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:07:18" (1/1) ... [2022-11-03 04:07:18,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46614bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:18, skipping insertion in model container [2022-11-03 04:07:18,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:07:18" (1/1) ... [2022-11-03 04:07:18,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:07:18,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:07:18,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal4.c[1107,1120] [2022-11-03 04:07:18,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:07:18,980 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:07:18,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal4.c[1107,1120] [2022-11-03 04:07:19,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:07:19,239 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:07:19,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19 WrapperNode [2022-11-03 04:07:19,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:07:19,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:07:19,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:07:19,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:07:19,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (1/1) ... [2022-11-03 04:07:19,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (1/1) ... [2022-11-03 04:07:19,457 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3092 [2022-11-03 04:07:19,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:07:19,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:07:19,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:07:19,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:07:19,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (1/1) ... [2022-11-03 04:07:19,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (1/1) ... [2022-11-03 04:07:19,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (1/1) ... [2022-11-03 04:07:19,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (1/1) ... [2022-11-03 04:07:19,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (1/1) ... [2022-11-03 04:07:19,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (1/1) ... [2022-11-03 04:07:19,611 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (1/1) ... [2022-11-03 04:07:19,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (1/1) ... [2022-11-03 04:07:19,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:07:19,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:07:19,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:07:19,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:07:19,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (1/1) ... [2022-11-03 04:07:19,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:07:19,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:19,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:07:19,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:07:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:07:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:07:20,384 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:07:20,386 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:07:22,441 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:07:22,460 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:07:22,460 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 04:07:22,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:07:22 BoogieIcfgContainer [2022-11-03 04:07:22,464 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:07:22,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:07:22,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:07:22,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:07:22,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:07:18" (1/3) ... [2022-11-03 04:07:22,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1aa2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:07:22, skipping insertion in model container [2022-11-03 04:07:22,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:19" (2/3) ... [2022-11-03 04:07:22,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1aa2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:07:22, skipping insertion in model container [2022-11-03 04:07:22,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:07:22" (3/3) ... [2022-11-03 04:07:22,474 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal4.c [2022-11-03 04:07:22,498 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:07:22,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:07:22,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:07:22,602 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=FINITE_AUTOMATA, 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;@3507ef5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:07:22,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:07:22,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 345 states have (on average 1.4985507246376812) internal successors, (517), 346 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:22,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:22,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:22,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:22,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:22,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:22,635 INFO L85 PathProgramCache]: Analyzing trace with hash -758802309, now seen corresponding path program 1 times [2022-11-03 04:07:22,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:22,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637652852] [2022-11-03 04:07:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:22,653 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:22,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:22,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:22,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 04:07:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:23,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:07:23,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:24,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:24,168 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:24,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637652852] [2022-11-03 04:07:24,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637652852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:24,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:24,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:24,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52951652] [2022-11-03 04:07:24,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:24,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:24,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:24,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:24,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:24,225 INFO L87 Difference]: Start difference. First operand has 347 states, 345 states have (on average 1.4985507246376812) internal successors, (517), 346 states have internal predecessors, (517), 0 states have call successors, (0), 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 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:24,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:24,614 INFO L93 Difference]: Finished difference Result 1370 states and 2053 transitions. [2022-11-03 04:07:24,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:24,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:24,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:24,647 INFO L225 Difference]: With dead ends: 1370 [2022-11-03 04:07:24,647 INFO L226 Difference]: Without dead ends: 1025 [2022-11-03 04:07:24,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:24,659 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 3541 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3541 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:24,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3541 Valid, 2013 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:07:24,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-11-03 04:07:24,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 345. [2022-11-03 04:07:24,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 1.4912790697674418) internal successors, (513), 344 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:24,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 513 transitions. [2022-11-03 04:07:24,720 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 513 transitions. Word has length 185 [2022-11-03 04:07:24,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:24,721 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 513 transitions. [2022-11-03 04:07:24,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:24,722 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 513 transitions. [2022-11-03 04:07:24,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:24,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:24,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:24,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-03 04:07:24,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:24,947 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:24,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:24,948 INFO L85 PathProgramCache]: Analyzing trace with hash -286462663, now seen corresponding path program 1 times [2022-11-03 04:07:24,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:24,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562431486] [2022-11-03 04:07:24,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:24,951 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:24,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:24,953 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:25,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 04:07:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:26,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:07:26,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:26,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:26,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:26,205 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:26,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562431486] [2022-11-03 04:07:26,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562431486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:26,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:26,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:26,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372894896] [2022-11-03 04:07:26,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:26,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:26,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:26,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:26,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:26,217 INFO L87 Difference]: Start difference. First operand 345 states and 513 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:26,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:26,500 INFO L93 Difference]: Finished difference Result 1372 states and 2042 transitions. [2022-11-03 04:07:26,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:26,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:26,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:26,505 INFO L225 Difference]: With dead ends: 1372 [2022-11-03 04:07:26,505 INFO L226 Difference]: Without dead ends: 1029 [2022-11-03 04:07:26,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:26,509 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 3533 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3533 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:26,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3533 Valid, 2015 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:07:26,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-11-03 04:07:26,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 349. [2022-11-03 04:07:26,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.4885057471264367) internal successors, (518), 348 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 518 transitions. [2022-11-03 04:07:26,544 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 518 transitions. Word has length 185 [2022-11-03 04:07:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:26,546 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 518 transitions. [2022-11-03 04:07:26,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:26,551 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 518 transitions. [2022-11-03 04:07:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:26,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:26,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:26,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:26,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:26,782 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:26,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:26,783 INFO L85 PathProgramCache]: Analyzing trace with hash 319312119, now seen corresponding path program 1 times [2022-11-03 04:07:26,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:26,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814656594] [2022-11-03 04:07:26,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:26,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:26,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:26,787 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:26,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 04:07:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:27,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:07:27,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:27,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:27,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:27,876 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:27,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814656594] [2022-11-03 04:07:27,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814656594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:27,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:27,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:27,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126984210] [2022-11-03 04:07:27,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:27,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:27,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:27,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:27,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:27,879 INFO L87 Difference]: Start difference. First operand 349 states and 518 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:28,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:28,146 INFO L93 Difference]: Finished difference Result 1378 states and 2048 transitions. [2022-11-03 04:07:28,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:28,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:28,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:28,150 INFO L225 Difference]: With dead ends: 1378 [2022-11-03 04:07:28,150 INFO L226 Difference]: Without dead ends: 1031 [2022-11-03 04:07:28,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:28,154 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 3527 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3527 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:28,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3527 Valid, 2017 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:07:28,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-11-03 04:07:28,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 351. [2022-11-03 04:07:28,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.4857142857142858) internal successors, (520), 350 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:28,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 520 transitions. [2022-11-03 04:07:28,174 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 520 transitions. Word has length 185 [2022-11-03 04:07:28,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:28,175 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 520 transitions. [2022-11-03 04:07:28,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:28,175 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 520 transitions. [2022-11-03 04:07:28,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:28,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:28,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:28,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:28,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:28,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:28,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:28,408 INFO L85 PathProgramCache]: Analyzing trace with hash -511341515, now seen corresponding path program 1 times [2022-11-03 04:07:28,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:28,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552279729] [2022-11-03 04:07:28,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:28,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:28,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:28,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:28,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 04:07:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:29,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:29,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:29,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:29,590 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:29,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552279729] [2022-11-03 04:07:29,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552279729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:29,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:29,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:07:29,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399726504] [2022-11-03 04:07:29,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:29,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:07:29,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:29,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:07:29,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:07:29,593 INFO L87 Difference]: Start difference. First operand 351 states and 520 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:30,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:30,371 INFO L93 Difference]: Finished difference Result 1393 states and 2066 transitions. [2022-11-03 04:07:30,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:07:30,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:30,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:30,376 INFO L225 Difference]: With dead ends: 1393 [2022-11-03 04:07:30,376 INFO L226 Difference]: Without dead ends: 1044 [2022-11-03 04:07:30,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:07:30,378 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 4044 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4044 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:30,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4044 Valid, 2910 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 04:07:30,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-11-03 04:07:30,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 353. [2022-11-03 04:07:30,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 1.4829545454545454) internal successors, (522), 352 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 522 transitions. [2022-11-03 04:07:30,392 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 522 transitions. Word has length 185 [2022-11-03 04:07:30,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:30,392 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 522 transitions. [2022-11-03 04:07:30,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 522 transitions. [2022-11-03 04:07:30,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:30,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:30,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:30,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:30,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:30,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:30,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:30,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1879802125, now seen corresponding path program 1 times [2022-11-03 04:07:30,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:30,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490690408] [2022-11-03 04:07:30,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:30,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:30,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:30,621 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:30,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 04:07:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:31,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 04:07:31,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:31,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:31,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:31,725 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:31,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490690408] [2022-11-03 04:07:31,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490690408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:31,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:31,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 04:07:31,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708389548] [2022-11-03 04:07:31,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:31,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 04:07:31,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:31,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 04:07:31,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:07:31,728 INFO L87 Difference]: Start difference. First operand 353 states and 522 transitions. Second operand has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:33,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:33,178 INFO L93 Difference]: Finished difference Result 1773 states and 2615 transitions. [2022-11-03 04:07:33,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-03 04:07:33,179 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:33,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:33,183 INFO L225 Difference]: With dead ends: 1773 [2022-11-03 04:07:33,183 INFO L226 Difference]: Without dead ends: 1422 [2022-11-03 04:07:33,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=384, Invalid=1022, Unknown=0, NotChecked=0, Total=1406 [2022-11-03 04:07:33,185 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 9526 mSDsluCounter, 3861 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9526 SdHoareTripleChecker+Valid, 4345 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:33,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9526 Valid, 4345 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 04:07:33,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2022-11-03 04:07:33,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 363. [2022-11-03 04:07:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 1.4723756906077348) internal successors, (533), 362 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:33,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 533 transitions. [2022-11-03 04:07:33,200 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 533 transitions. Word has length 185 [2022-11-03 04:07:33,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:33,200 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 533 transitions. [2022-11-03 04:07:33,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:33,201 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 533 transitions. [2022-11-03 04:07:33,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:33,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:33,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:33,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:33,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:33,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:33,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:33,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1189970635, now seen corresponding path program 1 times [2022-11-03 04:07:33,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:33,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645948885] [2022-11-03 04:07:33,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:33,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:33,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:33,421 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:33,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 04:07:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:34,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-03 04:07:34,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:34,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:34,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:34,737 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:34,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645948885] [2022-11-03 04:07:34,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645948885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:34,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:34,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:34,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953837330] [2022-11-03 04:07:34,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:34,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:34,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:34,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:34,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:34,739 INFO L87 Difference]: Start difference. First operand 363 states and 533 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:35,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:35,392 INFO L93 Difference]: Finished difference Result 1420 states and 2093 transitions. [2022-11-03 04:07:35,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:35,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:35,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:35,397 INFO L225 Difference]: With dead ends: 1420 [2022-11-03 04:07:35,401 INFO L226 Difference]: Without dead ends: 1059 [2022-11-03 04:07:35,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:35,402 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 3511 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3511 SdHoareTripleChecker+Valid, 1955 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:35,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3511 Valid, 1955 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:07:35,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2022-11-03 04:07:35,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 369. [2022-11-03 04:07:35,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 368 states have (on average 1.4701086956521738) internal successors, (541), 368 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:35,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 541 transitions. [2022-11-03 04:07:35,417 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 541 transitions. Word has length 185 [2022-11-03 04:07:35,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:35,418 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 541 transitions. [2022-11-03 04:07:35,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:35,418 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 541 transitions. [2022-11-03 04:07:35,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:35,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:35,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:35,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:35,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:35,644 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:35,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash -681191821, now seen corresponding path program 1 times [2022-11-03 04:07:35,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:35,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642796519] [2022-11-03 04:07:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:35,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:35,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:35,647 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:35,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 04:07:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:36,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:07:36,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:36,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:36,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:36,558 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:36,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642796519] [2022-11-03 04:07:36,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642796519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:36,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:36,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:07:36,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132515969] [2022-11-03 04:07:36,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:36,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:07:36,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:36,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:07:36,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:07:36,560 INFO L87 Difference]: Start difference. First operand 369 states and 541 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:36,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:36,758 INFO L93 Difference]: Finished difference Result 1469 states and 2156 transitions. [2022-11-03 04:07:36,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:07:36,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:36,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:36,764 INFO L225 Difference]: With dead ends: 1469 [2022-11-03 04:07:36,764 INFO L226 Difference]: Without dead ends: 1102 [2022-11-03 04:07:36,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:07:36,766 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 1475 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:36,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 2003 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:07:36,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-11-03 04:07:36,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 415. [2022-11-03 04:07:36,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 414 states have (on average 1.4492753623188406) internal successors, (600), 414 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 600 transitions. [2022-11-03 04:07:36,785 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 600 transitions. Word has length 185 [2022-11-03 04:07:36,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:36,787 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 600 transitions. [2022-11-03 04:07:36,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 600 transitions. [2022-11-03 04:07:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:36,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:36,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:36,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:37,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:37,013 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:37,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:37,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1889167153, now seen corresponding path program 1 times [2022-11-03 04:07:37,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:37,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437446911] [2022-11-03 04:07:37,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:37,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:37,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:37,017 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:37,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 04:07:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:37,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:07:37,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:37,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:37,912 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:37,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437446911] [2022-11-03 04:07:37,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1437446911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:37,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:37,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:07:37,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734058235] [2022-11-03 04:07:37,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:37,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:07:37,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:37,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:07:37,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:07:37,914 INFO L87 Difference]: Start difference. First operand 415 states and 600 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:38,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:38,114 INFO L93 Difference]: Finished difference Result 1469 states and 2155 transitions. [2022-11-03 04:07:38,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:07:38,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:38,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:38,120 INFO L225 Difference]: With dead ends: 1469 [2022-11-03 04:07:38,120 INFO L226 Difference]: Without dead ends: 1102 [2022-11-03 04:07:38,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:07:38,122 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 1469 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:38,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 2002 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:07:38,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-11-03 04:07:38,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 417. [2022-11-03 04:07:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 416 states have (on average 1.4471153846153846) internal successors, (602), 416 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:38,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 602 transitions. [2022-11-03 04:07:38,138 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 602 transitions. Word has length 185 [2022-11-03 04:07:38,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:38,139 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 602 transitions. [2022-11-03 04:07:38,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:38,139 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 602 transitions. [2022-11-03 04:07:38,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:38,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:38,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:38,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:38,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:38,363 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:38,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:38,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1835528337, now seen corresponding path program 1 times [2022-11-03 04:07:38,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:38,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952744668] [2022-11-03 04:07:38,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:38,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:38,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:38,366 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:38,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 04:07:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:39,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:07:39,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:39,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:39,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:39,420 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:39,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952744668] [2022-11-03 04:07:39,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952744668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:39,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:39,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:39,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312059127] [2022-11-03 04:07:39,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:39,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:39,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:39,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:39,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:39,423 INFO L87 Difference]: Start difference. First operand 417 states and 602 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:39,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:39,641 INFO L93 Difference]: Finished difference Result 1526 states and 2229 transitions. [2022-11-03 04:07:39,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:39,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:39,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:39,646 INFO L225 Difference]: With dead ends: 1526 [2022-11-03 04:07:39,646 INFO L226 Difference]: Without dead ends: 1159 [2022-11-03 04:07:39,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:39,648 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 3474 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3474 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:39,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3474 Valid, 2175 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:07:39,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2022-11-03 04:07:39,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 423. [2022-11-03 04:07:39,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 1.4454976303317535) internal successors, (610), 422 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:39,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 610 transitions. [2022-11-03 04:07:39,664 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 610 transitions. Word has length 185 [2022-11-03 04:07:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:39,664 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 610 transitions. [2022-11-03 04:07:39,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:39,665 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 610 transitions. [2022-11-03 04:07:39,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:39,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:39,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:39,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:39,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:39,885 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:39,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:39,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1536271533, now seen corresponding path program 1 times [2022-11-03 04:07:39,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:39,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630897198] [2022-11-03 04:07:39,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:39,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:39,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:39,891 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:39,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 04:07:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:40,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:07:40,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:41,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:41,035 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:41,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630897198] [2022-11-03 04:07:41,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630897198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:41,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:41,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:41,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546650923] [2022-11-03 04:07:41,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:41,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:41,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:41,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:41,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:41,038 INFO L87 Difference]: Start difference. First operand 423 states and 610 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:41,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:41,265 INFO L93 Difference]: Finished difference Result 1534 states and 2238 transitions. [2022-11-03 04:07:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:41,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:41,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:41,270 INFO L225 Difference]: With dead ends: 1534 [2022-11-03 04:07:41,270 INFO L226 Difference]: Without dead ends: 1161 [2022-11-03 04:07:41,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:41,272 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 3468 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3468 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:41,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3468 Valid, 2178 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:07:41,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2022-11-03 04:07:41,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 425. [2022-11-03 04:07:41,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 424 states have (on average 1.4433962264150944) internal successors, (612), 424 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:41,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 612 transitions. [2022-11-03 04:07:41,289 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 612 transitions. Word has length 185 [2022-11-03 04:07:41,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:41,290 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 612 transitions. [2022-11-03 04:07:41,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:41,290 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 612 transitions. [2022-11-03 04:07:41,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:41,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:41,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:41,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:41,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:41,519 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:41,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:41,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1271624043, now seen corresponding path program 1 times [2022-11-03 04:07:41,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:41,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729904103] [2022-11-03 04:07:41,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:41,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:41,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:41,521 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:41,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 04:07:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:42,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:42,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:42,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:42,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:42,763 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:42,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729904103] [2022-11-03 04:07:42,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729904103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:42,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:42,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:42,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117172754] [2022-11-03 04:07:42,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:42,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:42,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:42,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:42,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:42,766 INFO L87 Difference]: Start difference. First operand 425 states and 612 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:43,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:43,290 INFO L93 Difference]: Finished difference Result 1538 states and 2241 transitions. [2022-11-03 04:07:43,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:43,291 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:43,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:43,294 INFO L225 Difference]: With dead ends: 1538 [2022-11-03 04:07:43,294 INFO L226 Difference]: Without dead ends: 1163 [2022-11-03 04:07:43,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:43,296 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 3462 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3462 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:43,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3462 Valid, 2081 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:07:43,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2022-11-03 04:07:43,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 427. [2022-11-03 04:07:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.4413145539906103) internal successors, (614), 426 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:43,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 614 transitions. [2022-11-03 04:07:43,313 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 614 transitions. Word has length 185 [2022-11-03 04:07:43,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:43,313 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 614 transitions. [2022-11-03 04:07:43,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:43,314 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 614 transitions. [2022-11-03 04:07:43,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:43,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:43,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:43,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:43,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:43,528 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:43,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:43,529 INFO L85 PathProgramCache]: Analyzing trace with hash -51554903, now seen corresponding path program 1 times [2022-11-03 04:07:43,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:43,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706383116] [2022-11-03 04:07:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:43,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:43,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:43,531 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:43,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 04:07:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:44,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:07:44,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:44,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:44,572 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:44,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706383116] [2022-11-03 04:07:44,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [706383116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:44,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:44,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738413447] [2022-11-03 04:07:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:44,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:44,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:44,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:44,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:44,575 INFO L87 Difference]: Start difference. First operand 427 states and 614 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:44,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:44,824 INFO L93 Difference]: Finished difference Result 1544 states and 2247 transitions. [2022-11-03 04:07:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:44,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:44,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:44,828 INFO L225 Difference]: With dead ends: 1544 [2022-11-03 04:07:44,828 INFO L226 Difference]: Without dead ends: 1167 [2022-11-03 04:07:44,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:44,829 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 3454 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3454 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:44,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3454 Valid, 2187 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:07:44,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2022-11-03 04:07:44,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 431. [2022-11-03 04:07:44,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.4395348837209303) internal successors, (619), 430 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 619 transitions. [2022-11-03 04:07:44,851 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 619 transitions. Word has length 185 [2022-11-03 04:07:44,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:44,852 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 619 transitions. [2022-11-03 04:07:44,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:44,853 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 619 transitions. [2022-11-03 04:07:44,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:44,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:44,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:44,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:45,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:45,078 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:45,078 INFO L85 PathProgramCache]: Analyzing trace with hash -591984409, now seen corresponding path program 1 times [2022-11-03 04:07:45,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:45,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019641557] [2022-11-03 04:07:45,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:45,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:45,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:45,083 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:45,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 04:07:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:45,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:07:45,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:46,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:46,098 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:46,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019641557] [2022-11-03 04:07:46,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019641557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:46,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:46,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:46,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520376250] [2022-11-03 04:07:46,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:46,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:46,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:46,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:46,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:46,101 INFO L87 Difference]: Start difference. First operand 431 states and 619 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:46,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:46,395 INFO L93 Difference]: Finished difference Result 1550 states and 2253 transitions. [2022-11-03 04:07:46,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:46,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:46,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:46,399 INFO L225 Difference]: With dead ends: 1550 [2022-11-03 04:07:46,399 INFO L226 Difference]: Without dead ends: 1169 [2022-11-03 04:07:46,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:46,400 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 3448 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3448 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:46,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3448 Valid, 2186 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:07:46,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2022-11-03 04:07:46,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 433. [2022-11-03 04:07:46,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 432 states have (on average 1.4375) internal successors, (621), 432 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:46,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 621 transitions. [2022-11-03 04:07:46,418 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 621 transitions. Word has length 185 [2022-11-03 04:07:46,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:46,418 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 621 transitions. [2022-11-03 04:07:46,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:46,418 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 621 transitions. [2022-11-03 04:07:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:46,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:46,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:46,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:46,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:46,643 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:46,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:46,643 INFO L85 PathProgramCache]: Analyzing trace with hash -181374043, now seen corresponding path program 1 times [2022-11-03 04:07:46,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:46,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25870256] [2022-11-03 04:07:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:46,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:46,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:46,645 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:46,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 04:07:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:47,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:47,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:47,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:47,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:47,842 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:47,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25870256] [2022-11-03 04:07:47,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25870256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:47,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:47,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:47,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810118968] [2022-11-03 04:07:47,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:47,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:47,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:47,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:47,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:47,844 INFO L87 Difference]: Start difference. First operand 433 states and 621 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:48,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:48,408 INFO L93 Difference]: Finished difference Result 1554 states and 2256 transitions. [2022-11-03 04:07:48,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:48,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:48,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:48,413 INFO L225 Difference]: With dead ends: 1554 [2022-11-03 04:07:48,413 INFO L226 Difference]: Without dead ends: 1171 [2022-11-03 04:07:48,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:48,415 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 3442 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3442 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:48,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3442 Valid, 2093 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:07:48,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2022-11-03 04:07:48,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 435. [2022-11-03 04:07:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 434 states have (on average 1.435483870967742) internal successors, (623), 434 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 623 transitions. [2022-11-03 04:07:48,432 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 623 transitions. Word has length 185 [2022-11-03 04:07:48,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:48,433 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 623 transitions. [2022-11-03 04:07:48,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:48,433 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 623 transitions. [2022-11-03 04:07:48,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:48,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:48,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:48,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-11-03 04:07:48,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:48,655 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:48,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:48,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1977710051, now seen corresponding path program 1 times [2022-11-03 04:07:48,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:48,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161940555] [2022-11-03 04:07:48,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:48,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:48,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:48,658 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:48,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 04:07:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:49,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:07:49,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:49,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:49,675 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:49,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161940555] [2022-11-03 04:07:49,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161940555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:49,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:49,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:49,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415439226] [2022-11-03 04:07:49,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:49,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:49,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:49,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:49,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:49,678 INFO L87 Difference]: Start difference. First operand 435 states and 623 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:49,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:49,940 INFO L93 Difference]: Finished difference Result 1560 states and 2262 transitions. [2022-11-03 04:07:49,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:49,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:49,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:49,944 INFO L225 Difference]: With dead ends: 1560 [2022-11-03 04:07:49,944 INFO L226 Difference]: Without dead ends: 1175 [2022-11-03 04:07:49,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:49,946 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 3434 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3434 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:49,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3434 Valid, 2195 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:07:49,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-11-03 04:07:49,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 439. [2022-11-03 04:07:49,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.4337899543378996) internal successors, (628), 438 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:49,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 628 transitions. [2022-11-03 04:07:49,963 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 628 transitions. Word has length 185 [2022-11-03 04:07:49,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:49,964 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 628 transitions. [2022-11-03 04:07:49,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:49,964 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 628 transitions. [2022-11-03 04:07:49,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:49,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:49,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:49,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:50,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:50,183 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:50,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:50,183 INFO L85 PathProgramCache]: Analyzing trace with hash 360269601, now seen corresponding path program 1 times [2022-11-03 04:07:50,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:50,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226633631] [2022-11-03 04:07:50,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:50,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:50,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:50,185 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:50,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-03 04:07:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:50,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:50,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:51,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:51,341 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:51,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226633631] [2022-11-03 04:07:51,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226633631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:51,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:51,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:51,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053427198] [2022-11-03 04:07:51,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:51,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:51,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:51,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:51,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:51,343 INFO L87 Difference]: Start difference. First operand 439 states and 628 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:51,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:51,892 INFO L93 Difference]: Finished difference Result 1566 states and 2268 transitions. [2022-11-03 04:07:51,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:51,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:51,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:51,897 INFO L225 Difference]: With dead ends: 1566 [2022-11-03 04:07:51,897 INFO L226 Difference]: Without dead ends: 1177 [2022-11-03 04:07:51,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:51,899 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 3428 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3428 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:51,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3428 Valid, 2102 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:07:51,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-11-03 04:07:51,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 441. [2022-11-03 04:07:51,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.4318181818181819) internal successors, (630), 440 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:51,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 630 transitions. [2022-11-03 04:07:51,919 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 630 transitions. Word has length 185 [2022-11-03 04:07:51,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:51,920 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 630 transitions. [2022-11-03 04:07:51,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:51,920 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 630 transitions. [2022-11-03 04:07:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:51,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:51,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:51,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:52,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:52,160 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:52,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:52,160 INFO L85 PathProgramCache]: Analyzing trace with hash 649088991, now seen corresponding path program 1 times [2022-11-03 04:07:52,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:52,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745874076] [2022-11-03 04:07:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:52,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:52,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:52,163 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:52,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-03 04:07:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:52,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 04:07:52,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:53,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:53,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:53,922 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:53,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745874076] [2022-11-03 04:07:53,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745874076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:53,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:53,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:53,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090809967] [2022-11-03 04:07:53,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:53,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:53,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:53,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:53,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:53,925 INFO L87 Difference]: Start difference. First operand 441 states and 630 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:54,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:54,579 INFO L93 Difference]: Finished difference Result 1570 states and 2271 transitions. [2022-11-03 04:07:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:54,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:54,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:54,583 INFO L225 Difference]: With dead ends: 1570 [2022-11-03 04:07:54,583 INFO L226 Difference]: Without dead ends: 1179 [2022-11-03 04:07:54,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:07:54,586 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 3422 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3422 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:54,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3422 Valid, 2117 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:07:54,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2022-11-03 04:07:54,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 443. [2022-11-03 04:07:54,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 1.4298642533936652) internal successors, (632), 442 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 632 transitions. [2022-11-03 04:07:54,604 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 632 transitions. Word has length 185 [2022-11-03 04:07:54,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:54,605 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 632 transitions. [2022-11-03 04:07:54,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:54,605 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 632 transitions. [2022-11-03 04:07:54,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:54,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:54,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:54,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:54,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:54,830 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:54,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:54,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1324249117, now seen corresponding path program 1 times [2022-11-03 04:07:54,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:54,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309366638] [2022-11-03 04:07:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:54,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:54,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:54,833 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:54,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 04:07:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:55,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:07:55,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:55,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:55,910 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:55,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309366638] [2022-11-03 04:07:55,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309366638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:55,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:55,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:07:55,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132735113] [2022-11-03 04:07:55,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:55,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:07:55,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:55,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:07:55,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:07:55,913 INFO L87 Difference]: Start difference. First operand 443 states and 632 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:56,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:56,266 INFO L93 Difference]: Finished difference Result 1519 states and 2201 transitions. [2022-11-03 04:07:56,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:07:56,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:56,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:56,269 INFO L225 Difference]: With dead ends: 1519 [2022-11-03 04:07:56,269 INFO L226 Difference]: Without dead ends: 1126 [2022-11-03 04:07:56,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-03 04:07:56,271 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 3260 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3260 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:56,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3260 Valid, 2151 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:07:56,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-11-03 04:07:56,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 447. [2022-11-03 04:07:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 446 states have (on average 1.4282511210762332) internal successors, (637), 446 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 637 transitions. [2022-11-03 04:07:56,289 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 637 transitions. Word has length 185 [2022-11-03 04:07:56,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:56,289 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 637 transitions. [2022-11-03 04:07:56,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:56,290 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 637 transitions. [2022-11-03 04:07:56,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:56,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:56,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:56,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:56,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:56,506 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:56,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:56,507 INFO L85 PathProgramCache]: Analyzing trace with hash 894590811, now seen corresponding path program 1 times [2022-11-03 04:07:56,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:56,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817317842] [2022-11-03 04:07:56,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:56,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:56,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:56,509 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:56,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-03 04:07:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:57,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:07:57,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:57,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:57,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:57,608 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:57,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817317842] [2022-11-03 04:07:57,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817317842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:57,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:57,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:07:57,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551223069] [2022-11-03 04:07:57,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:57,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:07:57,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:57,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:07:57,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:07:57,610 INFO L87 Difference]: Start difference. First operand 447 states and 637 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:58,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:58,097 INFO L93 Difference]: Finished difference Result 1636 states and 2355 transitions. [2022-11-03 04:07:58,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:07:58,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:58,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:58,100 INFO L225 Difference]: With dead ends: 1636 [2022-11-03 04:07:58,100 INFO L226 Difference]: Without dead ends: 1239 [2022-11-03 04:07:58,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:07:58,101 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 3910 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3910 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:58,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3910 Valid, 3149 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:07:58,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2022-11-03 04:07:58,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 449. [2022-11-03 04:07:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 1.4263392857142858) internal successors, (639), 448 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 639 transitions. [2022-11-03 04:07:58,119 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 639 transitions. Word has length 185 [2022-11-03 04:07:58,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:58,120 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 639 transitions. [2022-11-03 04:07:58,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 639 transitions. [2022-11-03 04:07:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:58,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:58,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:58,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:58,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:07:58,345 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1841628697, now seen corresponding path program 1 times [2022-11-03 04:07:58,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:58,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605311814] [2022-11-03 04:07:58,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:58,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:58,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:58,348 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:58,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 04:07:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:59,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:07:59,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:07:59,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:59,441 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:59,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605311814] [2022-11-03 04:07:59,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605311814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:59,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:07:59,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:07:59,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584004727] [2022-11-03 04:07:59,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:59,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:07:59,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:59,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:07:59,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:07:59,444 INFO L87 Difference]: Start difference. First operand 449 states and 639 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:59,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:59,957 INFO L93 Difference]: Finished difference Result 1642 states and 2361 transitions. [2022-11-03 04:07:59,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:07:59,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:07:59,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:59,961 INFO L225 Difference]: With dead ends: 1642 [2022-11-03 04:07:59,961 INFO L226 Difference]: Without dead ends: 1243 [2022-11-03 04:07:59,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:07:59,963 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3901 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3901 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:59,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3901 Valid, 3155 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:07:59,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2022-11-03 04:07:59,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 453. [2022-11-03 04:07:59,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 452 states have (on average 1.424778761061947) internal successors, (644), 452 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:59,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 644 transitions. [2022-11-03 04:07:59,982 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 644 transitions. Word has length 185 [2022-11-03 04:07:59,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:59,982 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 644 transitions. [2022-11-03 04:07:59,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:07:59,983 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 644 transitions. [2022-11-03 04:07:59,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:07:59,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:59,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:00,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:00,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:00,198 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:00,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:00,199 INFO L85 PathProgramCache]: Analyzing trace with hash 748993495, now seen corresponding path program 1 times [2022-11-03 04:08:00,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:00,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630054779] [2022-11-03 04:08:00,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:00,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:00,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:00,201 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:00,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-03 04:08:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:00,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:08:00,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:01,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:01,323 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:01,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630054779] [2022-11-03 04:08:01,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630054779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:01,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:01,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:08:01,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188091606] [2022-11-03 04:08:01,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:01,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:08:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:08:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:08:01,327 INFO L87 Difference]: Start difference. First operand 453 states and 644 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:01,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:01,863 INFO L93 Difference]: Finished difference Result 1648 states and 2367 transitions. [2022-11-03 04:08:01,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:08:01,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:01,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:01,867 INFO L225 Difference]: With dead ends: 1648 [2022-11-03 04:08:01,867 INFO L226 Difference]: Without dead ends: 1245 [2022-11-03 04:08:01,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:08:01,869 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 3894 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3894 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:01,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3894 Valid, 3158 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:08:01,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-11-03 04:08:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 455. [2022-11-03 04:08:01,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 454 states have (on average 1.422907488986784) internal successors, (646), 454 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:01,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 646 transitions. [2022-11-03 04:08:01,888 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 646 transitions. Word has length 185 [2022-11-03 04:08:01,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:01,888 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 646 transitions. [2022-11-03 04:08:01,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 646 transitions. [2022-11-03 04:08:01,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:01,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:01,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:01,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-11-03 04:08:02,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:02,108 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:02,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:02,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1093482219, now seen corresponding path program 1 times [2022-11-03 04:08:02,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:02,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727014493] [2022-11-03 04:08:02,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:02,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:02,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:02,110 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:02,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-03 04:08:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:02,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:08:02,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:03,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:03,459 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:03,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727014493] [2022-11-03 04:08:03,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727014493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:03,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:03,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:08:03,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059967526] [2022-11-03 04:08:03,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:03,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:08:03,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:03,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:08:03,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:08:03,463 INFO L87 Difference]: Start difference. First operand 455 states and 646 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:04,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:04,171 INFO L93 Difference]: Finished difference Result 1652 states and 2370 transitions. [2022-11-03 04:08:04,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:08:04,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:04,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:04,175 INFO L225 Difference]: With dead ends: 1652 [2022-11-03 04:08:04,175 INFO L226 Difference]: Without dead ends: 1247 [2022-11-03 04:08:04,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:08:04,179 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 3884 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3884 SdHoareTripleChecker+Valid, 3055 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:04,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3884 Valid, 3055 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 04:08:04,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2022-11-03 04:08:04,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 457. [2022-11-03 04:08:04,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 456 states have (on average 1.4210526315789473) internal successors, (648), 456 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:04,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 648 transitions. [2022-11-03 04:08:04,201 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 648 transitions. Word has length 185 [2022-11-03 04:08:04,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:04,201 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 648 transitions. [2022-11-03 04:08:04,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:04,202 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 648 transitions. [2022-11-03 04:08:04,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:04,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:04,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:04,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:04,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:04,424 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:04,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:04,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1426125357, now seen corresponding path program 1 times [2022-11-03 04:08:04,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:04,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47995672] [2022-11-03 04:08:04,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:04,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:04,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:04,427 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:04,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-03 04:08:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:05,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 04:08:05,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:06,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:06,307 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:06,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47995672] [2022-11-03 04:08:06,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47995672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:06,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:06,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:08:06,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087659941] [2022-11-03 04:08:06,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:06,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:08:06,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:06,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:08:06,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:08:06,309 INFO L87 Difference]: Start difference. First operand 457 states and 648 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:07,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:07,187 INFO L93 Difference]: Finished difference Result 1656 states and 2373 transitions. [2022-11-03 04:08:07,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:08:07,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:07,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:07,191 INFO L225 Difference]: With dead ends: 1656 [2022-11-03 04:08:07,191 INFO L226 Difference]: Without dead ends: 1249 [2022-11-03 04:08:07,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:08:07,198 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 3877 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3877 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:07,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3877 Valid, 3067 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 04:08:07,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-11-03 04:08:07,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 459. [2022-11-03 04:08:07,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.4192139737991267) internal successors, (650), 458 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:07,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 650 transitions. [2022-11-03 04:08:07,227 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 650 transitions. Word has length 185 [2022-11-03 04:08:07,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:07,227 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 650 transitions. [2022-11-03 04:08:07,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:07,227 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 650 transitions. [2022-11-03 04:08:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:07,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:07,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:07,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-11-03 04:08:07,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:07,450 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:07,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:07,451 INFO L85 PathProgramCache]: Analyzing trace with hash 575760913, now seen corresponding path program 1 times [2022-11-03 04:08:07,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:07,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107920765] [2022-11-03 04:08:07,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:07,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:07,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:07,455 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:07,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 04:08:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:08,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:08:08,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:08,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:08,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:08,626 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:08,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107920765] [2022-11-03 04:08:08,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107920765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:08,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:08,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:08:08,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364520139] [2022-11-03 04:08:08,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:08,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:08:08,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:08,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:08:08,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:08:08,628 INFO L87 Difference]: Start difference. First operand 459 states and 650 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:08,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:08,967 INFO L93 Difference]: Finished difference Result 1549 states and 2228 transitions. [2022-11-03 04:08:08,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:08:08,968 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:08,970 INFO L225 Difference]: With dead ends: 1549 [2022-11-03 04:08:08,970 INFO L226 Difference]: Without dead ends: 1140 [2022-11-03 04:08:08,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-03 04:08:08,972 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 3222 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 2171 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:08,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3222 Valid, 2171 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:08:08,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-11-03 04:08:08,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 461. [2022-11-03 04:08:08,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 460 states have (on average 1.4173913043478261) internal successors, (652), 460 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:08,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 652 transitions. [2022-11-03 04:08:08,990 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 652 transitions. Word has length 185 [2022-11-03 04:08:08,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:08,990 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 652 transitions. [2022-11-03 04:08:08,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:08,991 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 652 transitions. [2022-11-03 04:08:08,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:08,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:08,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:09,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:09,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:09,206 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:09,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:09,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1047117263, now seen corresponding path program 1 times [2022-11-03 04:08:09,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:09,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059372519] [2022-11-03 04:08:09,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:09,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:09,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:09,210 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:09,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-03 04:08:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:10,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:08:10,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:10,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:10,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:10,320 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:10,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059372519] [2022-11-03 04:08:10,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059372519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:10,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:10,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:08:10,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297723601] [2022-11-03 04:08:10,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:10,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:08:10,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:10,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:08:10,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:08:10,322 INFO L87 Difference]: Start difference. First operand 461 states and 652 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:10,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:10,797 INFO L93 Difference]: Finished difference Result 1692 states and 2415 transitions. [2022-11-03 04:08:10,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:08:10,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:10,799 INFO L225 Difference]: With dead ends: 1692 [2022-11-03 04:08:10,804 INFO L226 Difference]: Without dead ends: 1281 [2022-11-03 04:08:10,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:08:10,806 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 3923 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3923 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:10,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3923 Valid, 3169 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:08:10,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-11-03 04:08:10,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 463. [2022-11-03 04:08:10,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.4155844155844155) internal successors, (654), 462 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:10,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 654 transitions. [2022-11-03 04:08:10,824 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 654 transitions. Word has length 185 [2022-11-03 04:08:10,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:10,824 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 654 transitions. [2022-11-03 04:08:10,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:10,824 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 654 transitions. [2022-11-03 04:08:10,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:10,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:10,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:10,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:11,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:11,049 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:11,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:11,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1084233459, now seen corresponding path program 1 times [2022-11-03 04:08:11,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:11,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300865969] [2022-11-03 04:08:11,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:11,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:11,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:11,052 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:11,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-03 04:08:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:11,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:08:11,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:12,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:12,463 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:12,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300865969] [2022-11-03 04:08:12,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300865969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:12,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:12,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:08:12,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989209044] [2022-11-03 04:08:12,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:12,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:08:12,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:12,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:08:12,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:08:12,465 INFO L87 Difference]: Start difference. First operand 463 states and 654 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:13,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:13,186 INFO L93 Difference]: Finished difference Result 1696 states and 2418 transitions. [2022-11-03 04:08:13,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:08:13,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:13,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:13,188 INFO L225 Difference]: With dead ends: 1696 [2022-11-03 04:08:13,188 INFO L226 Difference]: Without dead ends: 1283 [2022-11-03 04:08:13,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:08:13,189 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 3913 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3913 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:13,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3913 Valid, 3066 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 04:08:13,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-11-03 04:08:13,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 465. [2022-11-03 04:08:13,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 464 states have (on average 1.4137931034482758) internal successors, (656), 464 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 656 transitions. [2022-11-03 04:08:13,207 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 656 transitions. Word has length 185 [2022-11-03 04:08:13,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:13,207 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 656 transitions. [2022-11-03 04:08:13,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:13,207 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 656 transitions. [2022-11-03 04:08:13,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:13,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:13,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:13,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:13,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:13,430 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:13,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:13,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1237568459, now seen corresponding path program 1 times [2022-11-03 04:08:13,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:13,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161949590] [2022-11-03 04:08:13,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:13,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:13,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:13,433 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:13,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-03 04:08:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:14,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:08:14,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:14,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:14,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:14,509 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:14,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161949590] [2022-11-03 04:08:14,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161949590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:14,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:14,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:08:14,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322456354] [2022-11-03 04:08:14,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:14,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:08:14,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:14,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:08:14,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:08:14,511 INFO L87 Difference]: Start difference. First operand 465 states and 656 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:14,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:14,849 INFO L93 Difference]: Finished difference Result 1561 states and 2237 transitions. [2022-11-03 04:08:14,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:08:14,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:14,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:14,851 INFO L225 Difference]: With dead ends: 1561 [2022-11-03 04:08:14,851 INFO L226 Difference]: Without dead ends: 1146 [2022-11-03 04:08:14,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-03 04:08:14,852 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 3204 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3204 SdHoareTripleChecker+Valid, 2179 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:14,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3204 Valid, 2179 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:08:14,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2022-11-03 04:08:14,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 467. [2022-11-03 04:08:14,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 466 states have (on average 1.4120171673819744) internal successors, (658), 466 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:14,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 658 transitions. [2022-11-03 04:08:14,865 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 658 transitions. Word has length 185 [2022-11-03 04:08:14,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:14,865 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 658 transitions. [2022-11-03 04:08:14,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:14,865 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 658 transitions. [2022-11-03 04:08:14,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:14,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:14,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:14,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-11-03 04:08:15,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:15,069 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:15,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:15,070 INFO L85 PathProgramCache]: Analyzing trace with hash 614286857, now seen corresponding path program 1 times [2022-11-03 04:08:15,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:15,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822057405] [2022-11-03 04:08:15,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:15,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:15,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:15,072 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:15,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-03 04:08:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:15,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:08:15,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:16,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:16,574 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:16,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822057405] [2022-11-03 04:08:16,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822057405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:16,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:16,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:08:16,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920637420] [2022-11-03 04:08:16,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:16,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:08:16,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:08:16,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:08:16,577 INFO L87 Difference]: Start difference. First operand 467 states and 658 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:17,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:17,309 INFO L93 Difference]: Finished difference Result 1718 states and 2442 transitions. [2022-11-03 04:08:17,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:08:17,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:17,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:17,311 INFO L225 Difference]: With dead ends: 1718 [2022-11-03 04:08:17,311 INFO L226 Difference]: Without dead ends: 1301 [2022-11-03 04:08:17,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:08:17,312 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 3921 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3921 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:17,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3921 Valid, 3073 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 04:08:17,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2022-11-03 04:08:17,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 471. [2022-11-03 04:08:17,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 1.4106382978723404) internal successors, (663), 470 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:17,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 663 transitions. [2022-11-03 04:08:17,340 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 663 transitions. Word has length 185 [2022-11-03 04:08:17,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:17,340 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 663 transitions. [2022-11-03 04:08:17,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:17,341 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 663 transitions. [2022-11-03 04:08:17,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:17,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:17,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:17,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:17,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:17,559 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:17,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:17,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1252421817, now seen corresponding path program 1 times [2022-11-03 04:08:17,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:17,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159725181] [2022-11-03 04:08:17,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:17,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:17,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:17,563 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:17,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-03 04:08:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:18,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 04:08:18,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:19,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:19,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:19,761 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:19,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159725181] [2022-11-03 04:08:19,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159725181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:19,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:19,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:08:19,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554534262] [2022-11-03 04:08:19,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:19,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:08:19,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:19,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:08:19,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:08:19,763 INFO L87 Difference]: Start difference. First operand 471 states and 663 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:20,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:20,628 INFO L93 Difference]: Finished difference Result 1712 states and 2433 transitions. [2022-11-03 04:08:20,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:08:20,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:20,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:20,631 INFO L225 Difference]: With dead ends: 1712 [2022-11-03 04:08:20,631 INFO L226 Difference]: Without dead ends: 1291 [2022-11-03 04:08:20,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:08:20,633 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 3890 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3890 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:20,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3890 Valid, 3085 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 04:08:20,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-11-03 04:08:20,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 473. [2022-11-03 04:08:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 1.4088983050847457) internal successors, (665), 472 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:20,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 665 transitions. [2022-11-03 04:08:20,651 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 665 transitions. Word has length 185 [2022-11-03 04:08:20,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:20,651 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 665 transitions. [2022-11-03 04:08:20,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:20,651 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 665 transitions. [2022-11-03 04:08:20,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:20,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:20,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:20,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-11-03 04:08:20,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:20,862 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:20,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:20,863 INFO L85 PathProgramCache]: Analyzing trace with hash 645074949, now seen corresponding path program 1 times [2022-11-03 04:08:20,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:20,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904561473] [2022-11-03 04:08:20,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:20,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:20,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:20,865 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:20,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-03 04:08:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:21,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 68 conjunts are in the unsatisfiable core [2022-11-03 04:08:21,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:24,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:24,022 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:24,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904561473] [2022-11-03 04:08:24,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904561473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:24,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:24,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:08:24,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130109572] [2022-11-03 04:08:24,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:24,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:08:24,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:24,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:08:24,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:08:24,023 INFO L87 Difference]: Start difference. First operand 473 states and 665 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:25,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:25,037 INFO L93 Difference]: Finished difference Result 1688 states and 2400 transitions. [2022-11-03 04:08:25,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:08:25,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:25,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:25,040 INFO L225 Difference]: With dead ends: 1688 [2022-11-03 04:08:25,040 INFO L226 Difference]: Without dead ends: 1265 [2022-11-03 04:08:25,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:08:25,042 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 3826 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3826 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:25,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3826 Valid, 3088 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 04:08:25,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2022-11-03 04:08:25,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 475. [2022-11-03 04:08:25,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.4071729957805907) internal successors, (667), 474 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:25,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 667 transitions. [2022-11-03 04:08:25,060 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 667 transitions. Word has length 185 [2022-11-03 04:08:25,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:25,061 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 667 transitions. [2022-11-03 04:08:25,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 667 transitions. [2022-11-03 04:08:25,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:25,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:25,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:25,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:25,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:25,286 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:25,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:25,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1261328317, now seen corresponding path program 1 times [2022-11-03 04:08:25,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:25,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140212694] [2022-11-03 04:08:25,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:25,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:25,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:25,289 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:25,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-03 04:08:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:26,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:08:26,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:26,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:26,507 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:26,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140212694] [2022-11-03 04:08:26,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140212694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:26,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:26,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:08:26,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529098943] [2022-11-03 04:08:26,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:26,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:08:26,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:26,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:08:26,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:08:26,509 INFO L87 Difference]: Start difference. First operand 475 states and 667 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:27,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:27,079 INFO L93 Difference]: Finished difference Result 1874 states and 2641 transitions. [2022-11-03 04:08:27,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:08:27,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:27,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:27,081 INFO L225 Difference]: With dead ends: 1874 [2022-11-03 04:08:27,081 INFO L226 Difference]: Without dead ends: 1449 [2022-11-03 04:08:27,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:08:27,082 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 3323 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:27,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3323 Valid, 2441 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:08:27,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2022-11-03 04:08:27,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 477. [2022-11-03 04:08:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 1.4054621848739495) internal successors, (669), 476 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 669 transitions. [2022-11-03 04:08:27,099 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 669 transitions. Word has length 185 [2022-11-03 04:08:27,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:27,100 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 669 transitions. [2022-11-03 04:08:27,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:27,100 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 669 transitions. [2022-11-03 04:08:27,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:27,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:27,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:27,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:27,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:27,315 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:27,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:27,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1289828607, now seen corresponding path program 1 times [2022-11-03 04:08:27,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:27,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43681213] [2022-11-03 04:08:27,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:27,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:27,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:27,319 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:27,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-03 04:08:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:28,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:08:28,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:28,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:28,241 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:28,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43681213] [2022-11-03 04:08:28,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43681213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:28,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:28,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:08:28,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124312454] [2022-11-03 04:08:28,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:28,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:08:28,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:28,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:08:28,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:08:28,243 INFO L87 Difference]: Start difference. First operand 477 states and 669 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:28,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:28,414 INFO L93 Difference]: Finished difference Result 1709 states and 2422 transitions. [2022-11-03 04:08:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:08:28,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:28,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:28,417 INFO L225 Difference]: With dead ends: 1709 [2022-11-03 04:08:28,417 INFO L226 Difference]: Without dead ends: 1282 [2022-11-03 04:08:28,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:28,419 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 1283 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:28,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 2001 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:28,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2022-11-03 04:08:28,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 611. [2022-11-03 04:08:28,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 1.3868852459016394) internal successors, (846), 610 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:28,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 846 transitions. [2022-11-03 04:08:28,439 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 846 transitions. Word has length 185 [2022-11-03 04:08:28,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:28,439 INFO L495 AbstractCegarLoop]: Abstraction has 611 states and 846 transitions. [2022-11-03 04:08:28,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:28,440 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 846 transitions. [2022-11-03 04:08:28,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:28,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:28,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:28,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:28,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:28,659 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:28,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2010444991, now seen corresponding path program 1 times [2022-11-03 04:08:28,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:28,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931430896] [2022-11-03 04:08:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:28,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:28,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:28,662 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:28,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-03 04:08:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:29,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:08:29,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:29,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:29,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:29,587 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:29,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931430896] [2022-11-03 04:08:29,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931430896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:29,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:29,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:08:29,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565545948] [2022-11-03 04:08:29,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:29,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:08:29,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:29,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:08:29,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:08:29,590 INFO L87 Difference]: Start difference. First operand 611 states and 846 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:29,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:29,761 INFO L93 Difference]: Finished difference Result 1709 states and 2421 transitions. [2022-11-03 04:08:29,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:08:29,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:29,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:29,763 INFO L225 Difference]: With dead ends: 1709 [2022-11-03 04:08:29,763 INFO L226 Difference]: Without dead ends: 1282 [2022-11-03 04:08:29,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:29,764 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 1262 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:29,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 2000 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:29,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2022-11-03 04:08:29,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 619. [2022-11-03 04:08:29,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 618 states have (on average 1.3867313915857604) internal successors, (857), 618 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 857 transitions. [2022-11-03 04:08:29,784 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 857 transitions. Word has length 185 [2022-11-03 04:08:29,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:29,784 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 857 transitions. [2022-11-03 04:08:29,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:29,785 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 857 transitions. [2022-11-03 04:08:29,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:29,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:29,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:29,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2022-11-03 04:08:30,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:30,002 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:30,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:30,003 INFO L85 PathProgramCache]: Analyzing trace with hash 867942525, now seen corresponding path program 1 times [2022-11-03 04:08:30,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:30,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770573337] [2022-11-03 04:08:30,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:30,004 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:30,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:30,005 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:30,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-03 04:08:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:30,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-03 04:08:30,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:33,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:33,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:33,506 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:33,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770573337] [2022-11-03 04:08:33,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770573337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:33,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:33,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:08:33,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943574164] [2022-11-03 04:08:33,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:33,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:08:33,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:33,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:08:33,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:08:33,507 INFO L87 Difference]: Start difference. First operand 619 states and 857 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:34,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:34,565 INFO L93 Difference]: Finished difference Result 1954 states and 2750 transitions. [2022-11-03 04:08:34,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:08:34,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:34,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:34,569 INFO L225 Difference]: With dead ends: 1954 [2022-11-03 04:08:34,569 INFO L226 Difference]: Without dead ends: 1527 [2022-11-03 04:08:34,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:08:34,570 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 3936 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3936 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:34,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3936 Valid, 3125 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:08:34,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2022-11-03 04:08:34,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 669. [2022-11-03 04:08:34,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 668 states have (on average 1.3877245508982037) internal successors, (927), 668 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:34,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 927 transitions. [2022-11-03 04:08:34,583 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 927 transitions. Word has length 185 [2022-11-03 04:08:34,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:34,583 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 927 transitions. [2022-11-03 04:08:34,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:34,583 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 927 transitions. [2022-11-03 04:08:34,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:34,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:34,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:34,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2022-11-03 04:08:34,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:34,794 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:34,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:34,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1518566981, now seen corresponding path program 1 times [2022-11-03 04:08:34,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:34,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005492501] [2022-11-03 04:08:34,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:34,796 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:34,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:34,797 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:34,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-03 04:08:35,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:35,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-03 04:08:35,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:38,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:38,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:38,387 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:38,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005492501] [2022-11-03 04:08:38,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2005492501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:38,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:38,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:08:38,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741599189] [2022-11-03 04:08:38,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:38,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:08:38,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:38,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:08:38,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:08:38,389 INFO L87 Difference]: Start difference. First operand 669 states and 927 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:39,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:39,754 INFO L93 Difference]: Finished difference Result 2038 states and 2870 transitions. [2022-11-03 04:08:39,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 04:08:39,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:39,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:39,757 INFO L225 Difference]: With dead ends: 2038 [2022-11-03 04:08:39,757 INFO L226 Difference]: Without dead ends: 1581 [2022-11-03 04:08:39,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2022-11-03 04:08:39,759 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 4607 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4607 SdHoareTripleChecker+Valid, 4092 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:39,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4607 Valid, 4092 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 04:08:39,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2022-11-03 04:08:39,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 671. [2022-11-03 04:08:39,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 670 states have (on average 1.3865671641791044) internal successors, (929), 670 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:39,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 929 transitions. [2022-11-03 04:08:39,781 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 929 transitions. Word has length 185 [2022-11-03 04:08:39,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:39,781 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 929 transitions. [2022-11-03 04:08:39,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:39,781 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 929 transitions. [2022-11-03 04:08:39,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:39,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:39,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:39,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:39,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:39,998 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:39,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:39,998 INFO L85 PathProgramCache]: Analyzing trace with hash -564626823, now seen corresponding path program 1 times [2022-11-03 04:08:40,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:40,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546791195] [2022-11-03 04:08:40,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:40,000 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:40,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:40,001 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:40,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-03 04:08:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:40,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 04:08:40,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:44,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:44,572 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:44,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546791195] [2022-11-03 04:08:44,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546791195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:44,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:44,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:08:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161120620] [2022-11-03 04:08:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:44,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:08:44,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:44,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:08:44,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:08:44,574 INFO L87 Difference]: Start difference. First operand 671 states and 929 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:46,102 INFO L93 Difference]: Finished difference Result 2042 states and 2873 transitions. [2022-11-03 04:08:46,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 04:08:46,102 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:46,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:46,105 INFO L225 Difference]: With dead ends: 2042 [2022-11-03 04:08:46,105 INFO L226 Difference]: Without dead ends: 1583 [2022-11-03 04:08:46,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2022-11-03 04:08:46,106 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 4599 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4599 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:46,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4599 Valid, 4025 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 04:08:46,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2022-11-03 04:08:46,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 673. [2022-11-03 04:08:46,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 672 states have (on average 1.3854166666666667) internal successors, (931), 672 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:46,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 931 transitions. [2022-11-03 04:08:46,129 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 931 transitions. Word has length 185 [2022-11-03 04:08:46,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:46,129 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 931 transitions. [2022-11-03 04:08:46,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:46,129 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 931 transitions. [2022-11-03 04:08:46,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:46,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:46,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:46,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2022-11-03 04:08:46,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:46,338 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:46,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:46,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1296594249, now seen corresponding path program 1 times [2022-11-03 04:08:46,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:46,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489682897] [2022-11-03 04:08:46,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:46,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:46,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:46,342 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:46,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-03 04:08:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:47,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-03 04:08:47,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:52,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:52,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:52,877 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:52,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489682897] [2022-11-03 04:08:52,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489682897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:52,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:52,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:08:52,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900493023] [2022-11-03 04:08:52,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:52,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:08:52,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:52,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:08:52,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:08:52,879 INFO L87 Difference]: Start difference. First operand 673 states and 931 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:54,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:54,634 INFO L93 Difference]: Finished difference Result 2046 states and 2876 transitions. [2022-11-03 04:08:54,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 04:08:54,634 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:08:54,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:54,637 INFO L225 Difference]: With dead ends: 2046 [2022-11-03 04:08:54,637 INFO L226 Difference]: Without dead ends: 1585 [2022-11-03 04:08:54,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-03 04:08:54,638 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 4396 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4396 SdHoareTripleChecker+Valid, 4026 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:54,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4396 Valid, 4026 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 04:08:54,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-11-03 04:08:54,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 675. [2022-11-03 04:08:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 1.3842729970326408) internal successors, (933), 674 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:54,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 933 transitions. [2022-11-03 04:08:54,660 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 933 transitions. Word has length 185 [2022-11-03 04:08:54,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:54,660 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 933 transitions. [2022-11-03 04:08:54,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:54,660 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 933 transitions. [2022-11-03 04:08:54,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:08:54,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:54,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:54,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-11-03 04:08:54,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:54,883 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:54,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:54,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1350987147, now seen corresponding path program 1 times [2022-11-03 04:08:54,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:54,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983525475] [2022-11-03 04:08:54,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:54,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:54,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:54,886 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:54,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-03 04:08:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:55,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-03 04:08:55,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:00,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:00,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:00,756 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:00,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983525475] [2022-11-03 04:09:00,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983525475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:00,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:00,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:09:00,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123495046] [2022-11-03 04:09:00,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:00,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:09:00,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:00,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:09:00,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:09:00,758 INFO L87 Difference]: Start difference. First operand 675 states and 933 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:02,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:02,331 INFO L93 Difference]: Finished difference Result 2050 states and 2879 transitions. [2022-11-03 04:09:02,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 04:09:02,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:09:02,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:02,333 INFO L225 Difference]: With dead ends: 2050 [2022-11-03 04:09:02,333 INFO L226 Difference]: Without dead ends: 1587 [2022-11-03 04:09:02,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-03 04:09:02,334 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 4388 mSDsluCounter, 3452 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4388 SdHoareTripleChecker+Valid, 4099 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:02,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4388 Valid, 4099 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 04:09:02,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2022-11-03 04:09:02,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 677. [2022-11-03 04:09:02,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 676 states have (on average 1.3831360946745561) internal successors, (935), 676 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:02,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 935 transitions. [2022-11-03 04:09:02,353 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 935 transitions. Word has length 185 [2022-11-03 04:09:02,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:02,353 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 935 transitions. [2022-11-03 04:09:02,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:02,354 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 935 transitions. [2022-11-03 04:09:02,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:09:02,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:02,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:02,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:02,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:09:02,572 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:02,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:02,573 INFO L85 PathProgramCache]: Analyzing trace with hash -671714893, now seen corresponding path program 1 times [2022-11-03 04:09:02,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:02,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370784478] [2022-11-03 04:09:02,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:02,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:02,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:02,575 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:02,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-03 04:09:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:03,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-03 04:09:03,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:10,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:10,024 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:10,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370784478] [2022-11-03 04:09:10,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370784478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:10,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:10,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:09:10,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360305451] [2022-11-03 04:09:10,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:10,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:09:10,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:10,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:09:10,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:09:10,027 INFO L87 Difference]: Start difference. First operand 677 states and 935 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:12,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:12,011 INFO L93 Difference]: Finished difference Result 2054 states and 2882 transitions. [2022-11-03 04:09:12,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 04:09:12,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:09:12,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:12,014 INFO L225 Difference]: With dead ends: 2054 [2022-11-03 04:09:12,014 INFO L226 Difference]: Without dead ends: 1589 [2022-11-03 04:09:12,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-03 04:09:12,016 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 4380 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4380 SdHoareTripleChecker+Valid, 4032 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:12,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4380 Valid, 4032 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 04:09:12,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2022-11-03 04:09:12,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 679. [2022-11-03 04:09:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 678 states have (on average 1.3820058997050146) internal successors, (937), 678 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 937 transitions. [2022-11-03 04:09:12,041 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 937 transitions. Word has length 185 [2022-11-03 04:09:12,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:12,041 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 937 transitions. [2022-11-03 04:09:12,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:12,042 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 937 transitions. [2022-11-03 04:09:12,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:09:12,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:12,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:12,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:12,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:09:12,258 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:12,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:12,259 INFO L85 PathProgramCache]: Analyzing trace with hash -469890959, now seen corresponding path program 1 times [2022-11-03 04:09:12,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:12,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217208907] [2022-11-03 04:09:12,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:12,261 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:12,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:12,262 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:12,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-03 04:09:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:13,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-03 04:09:13,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:16,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:16,492 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:16,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217208907] [2022-11-03 04:09:16,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217208907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:16,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:16,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:09:16,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375169427] [2022-11-03 04:09:16,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:16,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:09:16,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:16,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:09:16,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:09:16,494 INFO L87 Difference]: Start difference. First operand 679 states and 937 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:17,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:17,470 INFO L93 Difference]: Finished difference Result 1659 states and 2317 transitions. [2022-11-03 04:09:17,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:09:17,471 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:09:17,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:17,472 INFO L225 Difference]: With dead ends: 1659 [2022-11-03 04:09:17,472 INFO L226 Difference]: Without dead ends: 1192 [2022-11-03 04:09:17,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:09:17,474 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 1130 mSDsluCounter, 3496 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 4177 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:17,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 4177 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 26 Unchecked, 0.6s Time] [2022-11-03 04:09:17,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-11-03 04:09:17,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 703. [2022-11-03 04:09:17,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 702 states have (on average 1.376068376068376) internal successors, (966), 702 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:17,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 966 transitions. [2022-11-03 04:09:17,494 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 966 transitions. Word has length 185 [2022-11-03 04:09:17,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:17,495 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 966 transitions. [2022-11-03 04:09:17,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:17,495 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 966 transitions. [2022-11-03 04:09:17,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:09:17,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:17,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:17,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:17,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:09:17,718 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:17,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:17,719 INFO L85 PathProgramCache]: Analyzing trace with hash -429216209, now seen corresponding path program 1 times [2022-11-03 04:09:17,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:17,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707571806] [2022-11-03 04:09:17,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:17,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:17,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:17,721 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:17,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-03 04:09:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:18,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-03 04:09:18,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:21,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:21,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:21,452 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:21,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707571806] [2022-11-03 04:09:21,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707571806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:21,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:21,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:09:21,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297135096] [2022-11-03 04:09:21,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:21,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:09:21,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:21,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:09:21,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:09:21,453 INFO L87 Difference]: Start difference. First operand 703 states and 966 transitions. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:22,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:22,429 INFO L93 Difference]: Finished difference Result 2125 states and 2973 transitions. [2022-11-03 04:09:22,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:09:22,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:09:22,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:22,430 INFO L225 Difference]: With dead ends: 2125 [2022-11-03 04:09:22,431 INFO L226 Difference]: Without dead ends: 1658 [2022-11-03 04:09:22,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:09:22,432 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 2139 mSDsluCounter, 4506 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 5189 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:22,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 5189 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 30 Unchecked, 0.6s Time] [2022-11-03 04:09:22,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2022-11-03 04:09:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 705. [2022-11-03 04:09:22,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.375) internal successors, (968), 704 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) [2022-11-03 04:09:22,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 968 transitions. [2022-11-03 04:09:22,449 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 968 transitions. Word has length 185 [2022-11-03 04:09:22,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:22,450 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 968 transitions. [2022-11-03 04:09:22,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:22,450 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 968 transitions. [2022-11-03 04:09:22,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:09:22,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:22,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:22,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (42)] Ended with exit code 0 [2022-11-03 04:09:22,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:09:22,670 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:22,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:22,671 INFO L85 PathProgramCache]: Analyzing trace with hash 446802797, now seen corresponding path program 1 times [2022-11-03 04:09:22,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:22,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877185301] [2022-11-03 04:09:22,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:22,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:22,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:22,673 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:22,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-03 04:09:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:23,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 04:09:23,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:27,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:27,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:27,828 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:27,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877185301] [2022-11-03 04:09:27,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877185301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:27,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:27,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:09:27,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662885116] [2022-11-03 04:09:27,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:27,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:09:27,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:27,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:09:27,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:09:27,829 INFO L87 Difference]: Start difference. First operand 705 states and 968 transitions. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:29,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:29,053 INFO L93 Difference]: Finished difference Result 2125 states and 2972 transitions. [2022-11-03 04:09:29,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:09:29,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:09:29,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:29,055 INFO L225 Difference]: With dead ends: 2125 [2022-11-03 04:09:29,055 INFO L226 Difference]: Without dead ends: 1658 [2022-11-03 04:09:29,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:09:29,056 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 2133 mSDsluCounter, 4455 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 5139 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:29,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 5139 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 225 Invalid, 0 Unknown, 89 Unchecked, 0.8s Time] [2022-11-03 04:09:29,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2022-11-03 04:09:29,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 707. [2022-11-03 04:09:29,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 706 states have (on average 1.3739376770538243) internal successors, (970), 706 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:29,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 970 transitions. [2022-11-03 04:09:29,072 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 970 transitions. Word has length 185 [2022-11-03 04:09:29,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:29,072 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 970 transitions. [2022-11-03 04:09:29,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:29,072 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 970 transitions. [2022-11-03 04:09:29,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:09:29,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:29,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:29,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:29,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:09:29,290 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:29,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:29,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1985142827, now seen corresponding path program 1 times [2022-11-03 04:09:29,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:29,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440555497] [2022-11-03 04:09:29,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:29,293 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:29,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:29,294 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:29,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-03 04:09:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:30,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-03 04:09:30,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:36,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:36,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:36,277 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:36,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440555497] [2022-11-03 04:09:36,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440555497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:36,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:36,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:09:36,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545581989] [2022-11-03 04:09:36,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:36,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:09:36,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:36,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:09:36,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:09:36,279 INFO L87 Difference]: Start difference. First operand 707 states and 970 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:37,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:37,330 INFO L93 Difference]: Finished difference Result 1665 states and 2323 transitions. [2022-11-03 04:09:37,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:09:37,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:09:37,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:37,332 INFO L225 Difference]: With dead ends: 1665 [2022-11-03 04:09:37,332 INFO L226 Difference]: Without dead ends: 1198 [2022-11-03 04:09:37,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:09:37,334 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 1130 mSDsluCounter, 3489 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 4175 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:37,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 4175 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 30 Unchecked, 0.7s Time] [2022-11-03 04:09:37,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-03 04:09:37,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 709. [2022-11-03 04:09:37,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 708 states have (on average 1.3728813559322033) internal successors, (972), 708 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:37,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 972 transitions. [2022-11-03 04:09:37,347 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 972 transitions. Word has length 185 [2022-11-03 04:09:37,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:37,349 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 972 transitions. [2022-11-03 04:09:37,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:37,350 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 972 transitions. [2022-11-03 04:09:37,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:09:37,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:37,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:37,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:37,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:09:37,551 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:37,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:37,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1504062569, now seen corresponding path program 1 times [2022-11-03 04:09:37,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:37,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563618575] [2022-11-03 04:09:37,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:37,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:37,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:37,554 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:37,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-03 04:09:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:38,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-03 04:09:38,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:43,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:43,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:43,780 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:43,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563618575] [2022-11-03 04:09:43,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563618575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:43,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:43,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:09:43,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96715317] [2022-11-03 04:09:43,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:43,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:09:43,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:43,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:09:43,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:09:43,782 INFO L87 Difference]: Start difference. First operand 709 states and 972 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:44,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:44,766 INFO L93 Difference]: Finished difference Result 1665 states and 2322 transitions. [2022-11-03 04:09:44,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:09:44,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:09:44,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:44,768 INFO L225 Difference]: With dead ends: 1665 [2022-11-03 04:09:44,768 INFO L226 Difference]: Without dead ends: 1198 [2022-11-03 04:09:44,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:09:44,769 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 1127 mSDsluCounter, 3523 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 4210 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:44,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 4210 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 22 Unchecked, 0.6s Time] [2022-11-03 04:09:44,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-03 04:09:44,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 711. [2022-11-03 04:09:44,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 710 states have (on average 1.371830985915493) internal successors, (974), 710 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:44,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 974 transitions. [2022-11-03 04:09:44,784 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 974 transitions. Word has length 185 [2022-11-03 04:09:44,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:44,784 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 974 transitions. [2022-11-03 04:09:44,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:44,785 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 974 transitions. [2022-11-03 04:09:44,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:09:44,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:44,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:44,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2022-11-03 04:09:44,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:09:44,986 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:44,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:44,987 INFO L85 PathProgramCache]: Analyzing trace with hash -851742681, now seen corresponding path program 1 times [2022-11-03 04:09:44,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:44,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045437618] [2022-11-03 04:09:44,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:44,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:44,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:44,989 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:44,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-03 04:09:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:45,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-03 04:09:45,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:52,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:52,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:52,923 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:52,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045437618] [2022-11-03 04:09:52,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045437618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:52,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:52,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:09:52,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022204021] [2022-11-03 04:09:52,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:52,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:09:52,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:52,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:09:52,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:09:52,925 INFO L87 Difference]: Start difference. First operand 711 states and 974 transitions. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:54,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:54,072 INFO L93 Difference]: Finished difference Result 2127 states and 2972 transitions. [2022-11-03 04:09:54,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 04:09:54,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:09:54,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:54,074 INFO L225 Difference]: With dead ends: 2127 [2022-11-03 04:09:54,074 INFO L226 Difference]: Without dead ends: 1660 [2022-11-03 04:09:54,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:09:54,076 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 2126 mSDsluCounter, 4456 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2126 SdHoareTripleChecker+Valid, 5141 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:54,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2126 Valid, 5141 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 81 Unchecked, 0.7s Time] [2022-11-03 04:09:54,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-11-03 04:09:54,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 713. [2022-11-03 04:09:54,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 1.3707865168539326) internal successors, (976), 712 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:54,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 976 transitions. [2022-11-03 04:09:54,092 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 976 transitions. Word has length 185 [2022-11-03 04:09:54,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:54,092 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 976 transitions. [2022-11-03 04:09:54,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:54,093 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 976 transitions. [2022-11-03 04:09:54,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:09:54,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:54,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:54,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (46)] Ended with exit code 0 [2022-11-03 04:09:54,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:09:54,294 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:54,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:54,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1076530021, now seen corresponding path program 1 times [2022-11-03 04:09:54,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:54,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066624397] [2022-11-03 04:09:54,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:54,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:54,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:54,297 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:54,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-03 04:09:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:55,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-03 04:09:55,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:00,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:00,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:00,010 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:00,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066624397] [2022-11-03 04:10:00,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066624397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:00,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:00,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:10:00,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221613183] [2022-11-03 04:10:00,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:00,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:10:00,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:00,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:10:00,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:10:00,012 INFO L87 Difference]: Start difference. First operand 713 states and 976 transitions. Second operand has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:00,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:00,989 INFO L93 Difference]: Finished difference Result 2125 states and 2968 transitions. [2022-11-03 04:10:00,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:10:00,990 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:10:00,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:00,991 INFO L225 Difference]: With dead ends: 2125 [2022-11-03 04:10:00,991 INFO L226 Difference]: Without dead ends: 1658 [2022-11-03 04:10:00,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:10:00,992 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 2109 mSDsluCounter, 4560 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 5258 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 84 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:00,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 5258 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 84 Unchecked, 0.6s Time] [2022-11-03 04:10:00,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2022-11-03 04:10:01,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 715. [2022-11-03 04:10:01,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.3697478991596639) internal successors, (978), 714 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 978 transitions. [2022-11-03 04:10:01,007 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 978 transitions. Word has length 185 [2022-11-03 04:10:01,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:01,007 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 978 transitions. [2022-11-03 04:10:01,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:01,008 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 978 transitions. [2022-11-03 04:10:01,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:10:01,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:01,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:01,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:01,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:01,222 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:01,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:01,223 INFO L85 PathProgramCache]: Analyzing trace with hash -972857821, now seen corresponding path program 1 times [2022-11-03 04:10:01,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:01,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62001680] [2022-11-03 04:10:01,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:01,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:01,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:01,227 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:01,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-03 04:10:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:02,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 180 conjunts are in the unsatisfiable core [2022-11-03 04:10:02,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:18,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:18,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:18,841 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:18,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62001680] [2022-11-03 04:10:18,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62001680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:18,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:18,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:10:18,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479675221] [2022-11-03 04:10:18,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:18,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:10:18,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:18,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:10:18,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:10:18,842 INFO L87 Difference]: Start difference. First operand 715 states and 978 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:21,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:21,793 INFO L93 Difference]: Finished difference Result 2110 states and 2950 transitions. [2022-11-03 04:10:21,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 04:10:21,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:10:21,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:21,795 INFO L225 Difference]: With dead ends: 2110 [2022-11-03 04:10:21,795 INFO L226 Difference]: Without dead ends: 1643 [2022-11-03 04:10:21,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-03 04:10:21,796 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 4363 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4363 SdHoareTripleChecker+Valid, 4064 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:21,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4363 Valid, 4064 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 04:10:21,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-11-03 04:10:21,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 733. [2022-11-03 04:10:21,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 732 states have (on average 1.3715846994535519) internal successors, (1004), 732 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:21,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1004 transitions. [2022-11-03 04:10:21,811 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1004 transitions. Word has length 185 [2022-11-03 04:10:21,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:21,811 INFO L495 AbstractCegarLoop]: Abstraction has 733 states and 1004 transitions. [2022-11-03 04:10:21,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:21,811 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1004 transitions. [2022-11-03 04:10:21,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:10:21,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:21,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:21,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (48)] Ended with exit code 0 [2022-11-03 04:10:22,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:22,013 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:22,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:22,013 INFO L85 PathProgramCache]: Analyzing trace with hash -724711327, now seen corresponding path program 1 times [2022-11-03 04:10:22,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:22,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595436411] [2022-11-03 04:10:22,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:22,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:22,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:22,015 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:22,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-03 04:10:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:22,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:10:22,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:23,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:23,012 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:23,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595436411] [2022-11-03 04:10:23,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595436411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:23,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:23,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:10:23,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538218833] [2022-11-03 04:10:23,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:23,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:10:23,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:23,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:10:23,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:10:23,014 INFO L87 Difference]: Start difference. First operand 733 states and 1004 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:23,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:23,189 INFO L93 Difference]: Finished difference Result 1941 states and 2727 transitions. [2022-11-03 04:10:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:10:23,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:10:23,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:23,191 INFO L225 Difference]: With dead ends: 1941 [2022-11-03 04:10:23,191 INFO L226 Difference]: Without dead ends: 1456 [2022-11-03 04:10:23,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:23,193 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 1141 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:23,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 1999 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:10:23,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2022-11-03 04:10:23,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 783. [2022-11-03 04:10:23,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 782 states have (on average 1.3772378516624042) internal successors, (1077), 782 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1077 transitions. [2022-11-03 04:10:23,208 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1077 transitions. Word has length 185 [2022-11-03 04:10:23,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:23,209 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 1077 transitions. [2022-11-03 04:10:23,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:23,209 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1077 transitions. [2022-11-03 04:10:23,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:10:23,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:23,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:23,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Ended with exit code 0 [2022-11-03 04:10:23,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:23,411 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:23,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:23,411 INFO L85 PathProgramCache]: Analyzing trace with hash -449951713, now seen corresponding path program 1 times [2022-11-03 04:10:23,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:23,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828982852] [2022-11-03 04:10:23,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:23,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:23,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:23,414 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:23,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-11-03 04:10:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:24,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:10:24,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:24,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:24,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:24,283 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:24,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828982852] [2022-11-03 04:10:24,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828982852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:24,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:24,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:10:24,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678387201] [2022-11-03 04:10:24,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:24,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:10:24,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:24,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:10:24,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:24,284 INFO L87 Difference]: Start difference. First operand 783 states and 1077 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:24,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:24,387 INFO L93 Difference]: Finished difference Result 2372 states and 3309 transitions. [2022-11-03 04:10:24,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:10:24,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:10:24,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:24,389 INFO L225 Difference]: With dead ends: 2372 [2022-11-03 04:10:24,389 INFO L226 Difference]: Without dead ends: 1887 [2022-11-03 04:10:24,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:10:24,390 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 2432 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:24,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2432 Valid, 2729 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:10:24,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2022-11-03 04:10:24,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 937. [2022-11-03 04:10:24,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 936 states have (on average 1.3728632478632479) internal successors, (1285), 936 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:24,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1285 transitions. [2022-11-03 04:10:24,414 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1285 transitions. Word has length 185 [2022-11-03 04:10:24,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:24,414 INFO L495 AbstractCegarLoop]: Abstraction has 937 states and 1285 transitions. [2022-11-03 04:10:24,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:24,415 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1285 transitions. [2022-11-03 04:10:24,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:10:24,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:24,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:24,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:24,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:24,640 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:24,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:24,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1850870877, now seen corresponding path program 1 times [2022-11-03 04:10:24,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:24,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849070579] [2022-11-03 04:10:24,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:24,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:24,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:24,644 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:24,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-03 04:10:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:25,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:10:25,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:25,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:25,658 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:25,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849070579] [2022-11-03 04:10:25,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849070579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:25,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:25,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:10:25,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385412715] [2022-11-03 04:10:25,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:25,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:10:25,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:25,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:10:25,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:10:25,660 INFO L87 Difference]: Start difference. First operand 937 states and 1285 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:25,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:25,887 INFO L93 Difference]: Finished difference Result 2277 states and 3190 transitions. [2022-11-03 04:10:25,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:10:25,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:10:25,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:25,891 INFO L225 Difference]: With dead ends: 2277 [2022-11-03 04:10:25,891 INFO L226 Difference]: Without dead ends: 1708 [2022-11-03 04:10:25,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:25,893 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1100 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:25,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 1998 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:10:25,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2022-11-03 04:10:25,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 967. [2022-11-03 04:10:25,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 966 states have (on average 1.3747412008281574) internal successors, (1328), 966 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:25,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1328 transitions. [2022-11-03 04:10:25,919 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1328 transitions. Word has length 185 [2022-11-03 04:10:25,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:25,920 INFO L495 AbstractCegarLoop]: Abstraction has 967 states and 1328 transitions. [2022-11-03 04:10:25,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1328 transitions. [2022-11-03 04:10:25,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 04:10:25,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:25,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:25,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:26,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:26,147 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:26,148 INFO L85 PathProgramCache]: Analyzing trace with hash 829802523, now seen corresponding path program 1 times [2022-11-03 04:10:26,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:26,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704929868] [2022-11-03 04:10:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:26,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:26,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:26,150 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:26,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-11-03 04:10:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:26,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 04:10:26,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:27,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:27,606 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:27,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704929868] [2022-11-03 04:10:27,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704929868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:27,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:27,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:10:27,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568344673] [2022-11-03 04:10:27,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:27,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:10:27,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:27,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:10:27,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:27,609 INFO L87 Difference]: Start difference. First operand 967 states and 1328 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:28,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:28,076 INFO L93 Difference]: Finished difference Result 1549 states and 2150 transitions. [2022-11-03 04:10:28,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:10:28,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2022-11-03 04:10:28,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:28,078 INFO L225 Difference]: With dead ends: 1549 [2022-11-03 04:10:28,079 INFO L226 Difference]: Without dead ends: 1547 [2022-11-03 04:10:28,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:10:28,080 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 1326 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 2221 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:28,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 2221 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:10:28,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2022-11-03 04:10:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 981. [2022-11-03 04:10:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 1.3755102040816327) internal successors, (1348), 980 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:28,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1348 transitions. [2022-11-03 04:10:28,097 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1348 transitions. Word has length 185 [2022-11-03 04:10:28,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:28,097 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1348 transitions. [2022-11-03 04:10:28,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:28,097 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1348 transitions. [2022-11-03 04:10:28,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:28,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:28,101 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:28,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:28,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:28,326 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:28,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:28,327 INFO L85 PathProgramCache]: Analyzing trace with hash -815409033, now seen corresponding path program 1 times [2022-11-03 04:10:28,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:28,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686482329] [2022-11-03 04:10:28,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:28,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:28,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:28,330 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:28,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-03 04:10:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:29,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:10:29,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:30,029 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:30,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:30,029 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:30,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686482329] [2022-11-03 04:10:30,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686482329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:30,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:30,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:10:30,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963905497] [2022-11-03 04:10:30,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:30,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:10:30,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:30,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:10:30,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:10:30,031 INFO L87 Difference]: Start difference. First operand 981 states and 1348 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:30,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:30,249 INFO L93 Difference]: Finished difference Result 1559 states and 2164 transitions. [2022-11-03 04:10:30,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:10:30,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:10:30,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:30,250 INFO L225 Difference]: With dead ends: 1559 [2022-11-03 04:10:30,250 INFO L226 Difference]: Without dead ends: 990 [2022-11-03 04:10:30,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:30,252 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 825 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:30,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 987 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:10:30,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-11-03 04:10:30,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 981. [2022-11-03 04:10:30,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 1.3744897959183673) internal successors, (1347), 980 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:30,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1347 transitions. [2022-11-03 04:10:30,267 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1347 transitions. Word has length 524 [2022-11-03 04:10:30,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:30,267 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1347 transitions. [2022-11-03 04:10:30,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:30,267 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1347 transitions. [2022-11-03 04:10:30,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:30,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:30,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:30,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Ended with exit code 0 [2022-11-03 04:10:30,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:30,485 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:30,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:30,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1844580871, now seen corresponding path program 1 times [2022-11-03 04:10:30,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:30,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777283276] [2022-11-03 04:10:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:30,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:30,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:30,489 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:30,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-11-03 04:10:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:31,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:10:31,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:32,159 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:32,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:32,160 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:32,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777283276] [2022-11-03 04:10:32,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777283276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:32,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:32,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:10:32,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175298847] [2022-11-03 04:10:32,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:32,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:10:32,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:32,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:10:32,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:10:32,162 INFO L87 Difference]: Start difference. First operand 981 states and 1347 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:32,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:32,366 INFO L93 Difference]: Finished difference Result 1563 states and 2167 transitions. [2022-11-03 04:10:32,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:10:32,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:10:32,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:32,367 INFO L225 Difference]: With dead ends: 1563 [2022-11-03 04:10:32,368 INFO L226 Difference]: Without dead ends: 994 [2022-11-03 04:10:32,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:32,368 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 819 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:32,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 994 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:10:32,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2022-11-03 04:10:32,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 981. [2022-11-03 04:10:32,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 1.373469387755102) internal successors, (1346), 980 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:32,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1346 transitions. [2022-11-03 04:10:32,390 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1346 transitions. Word has length 524 [2022-11-03 04:10:32,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:32,390 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1346 transitions. [2022-11-03 04:10:32,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:32,391 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1346 transitions. [2022-11-03 04:10:32,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:32,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:32,395 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:32,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:32,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:32,615 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:32,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:32,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1349446533, now seen corresponding path program 1 times [2022-11-03 04:10:32,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:32,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033619169] [2022-11-03 04:10:32,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:32,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:32,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:32,620 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:32,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-03 04:10:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:34,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 04:10:34,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:34,668 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:34,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:34,668 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:34,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033619169] [2022-11-03 04:10:34,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033619169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:34,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:34,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:10:34,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960192119] [2022-11-03 04:10:34,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:34,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:10:34,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:34,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:10:34,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:34,671 INFO L87 Difference]: Start difference. First operand 981 states and 1346 transitions. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:35,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:35,136 INFO L93 Difference]: Finished difference Result 2134 states and 2968 transitions. [2022-11-03 04:10:35,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:10:35,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:10:35,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:35,139 INFO L225 Difference]: With dead ends: 2134 [2022-11-03 04:10:35,139 INFO L226 Difference]: Without dead ends: 1565 [2022-11-03 04:10:35,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:10:35,140 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 1312 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:35,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 2215 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:10:35,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-11-03 04:10:35,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 997. [2022-11-03 04:10:35,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 996 states have (on average 1.3724899598393574) internal successors, (1367), 996 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:35,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1367 transitions. [2022-11-03 04:10:35,166 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1367 transitions. Word has length 524 [2022-11-03 04:10:35,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:35,166 INFO L495 AbstractCegarLoop]: Abstraction has 997 states and 1367 transitions. [2022-11-03 04:10:35,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:35,167 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1367 transitions. [2022-11-03 04:10:35,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:35,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:35,171 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:35,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Ended with exit code 0 [2022-11-03 04:10:35,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:35,386 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:35,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:35,387 INFO L85 PathProgramCache]: Analyzing trace with hash 500315513, now seen corresponding path program 1 times [2022-11-03 04:10:35,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:35,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684347061] [2022-11-03 04:10:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:35,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:35,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:35,391 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:35,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-11-03 04:10:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:36,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:10:36,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:37,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:37,081 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:37,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684347061] [2022-11-03 04:10:37,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684347061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:37,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:37,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:10:37,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608462245] [2022-11-03 04:10:37,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:37,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:10:37,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:37,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:10:37,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:10:37,084 INFO L87 Difference]: Start difference. First operand 997 states and 1367 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:37,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:37,308 INFO L93 Difference]: Finished difference Result 1575 states and 2181 transitions. [2022-11-03 04:10:37,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:10:37,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:10:37,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:37,310 INFO L225 Difference]: With dead ends: 1575 [2022-11-03 04:10:37,310 INFO L226 Difference]: Without dead ends: 1006 [2022-11-03 04:10:37,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:37,311 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 805 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:37,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1019 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:10:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2022-11-03 04:10:37,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 997. [2022-11-03 04:10:37,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 996 states have (on average 1.3714859437751004) internal successors, (1366), 996 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:37,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1366 transitions. [2022-11-03 04:10:37,331 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1366 transitions. Word has length 524 [2022-11-03 04:10:37,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:37,332 INFO L495 AbstractCegarLoop]: Abstraction has 997 states and 1366 transitions. [2022-11-03 04:10:37,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:37,332 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1366 transitions. [2022-11-03 04:10:37,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:37,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:37,335 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:37,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (56)] Ended with exit code 0 [2022-11-03 04:10:37,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:37,535 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:37,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:37,536 INFO L85 PathProgramCache]: Analyzing trace with hash 705269499, now seen corresponding path program 1 times [2022-11-03 04:10:37,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:37,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899567463] [2022-11-03 04:10:37,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:37,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:37,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:37,539 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:37,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-03 04:10:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:38,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 04:10:39,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:42,218 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:42,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:42,219 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:42,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899567463] [2022-11-03 04:10:42,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899567463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:42,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:42,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 04:10:42,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061985111] [2022-11-03 04:10:42,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:42,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 04:10:42,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:42,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 04:10:42,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:10:42,221 INFO L87 Difference]: Start difference. First operand 997 states and 1366 transitions. Second operand has 12 states, 12 states have (on average 43.666666666666664) internal successors, (524), 12 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:42,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:42,448 INFO L93 Difference]: Finished difference Result 2468 states and 3411 transitions. [2022-11-03 04:10:42,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 04:10:42,449 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 43.666666666666664) internal successors, (524), 12 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:10:42,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:42,451 INFO L225 Difference]: With dead ends: 2468 [2022-11-03 04:10:42,451 INFO L226 Difference]: Without dead ends: 1899 [2022-11-03 04:10:42,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:10:42,452 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 1541 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:42,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 3701 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 60 Unchecked, 0.2s Time] [2022-11-03 04:10:42,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2022-11-03 04:10:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1233. [2022-11-03 04:10:42,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 1232 states have (on average 1.3636363636363635) internal successors, (1680), 1232 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:42,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1680 transitions. [2022-11-03 04:10:42,483 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1680 transitions. Word has length 524 [2022-11-03 04:10:42,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:42,483 INFO L495 AbstractCegarLoop]: Abstraction has 1233 states and 1680 transitions. [2022-11-03 04:10:42,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 43.666666666666664) internal successors, (524), 12 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:42,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1680 transitions. [2022-11-03 04:10:42,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:42,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:42,488 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:42,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Ended with exit code 0 [2022-11-03 04:10:42,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:42,702 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:42,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:42,703 INFO L85 PathProgramCache]: Analyzing trace with hash 588952061, now seen corresponding path program 1 times [2022-11-03 04:10:42,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:42,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179160856] [2022-11-03 04:10:42,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:42,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:42,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:42,707 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:42,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2022-11-03 04:10:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:44,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:10:44,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:44,414 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:44,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:44,414 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:44,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179160856] [2022-11-03 04:10:44,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179160856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:44,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:44,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:10:44,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266316121] [2022-11-03 04:10:44,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:44,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:10:44,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:44,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:10:44,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:10:44,416 INFO L87 Difference]: Start difference. First operand 1233 states and 1680 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:44,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:44,629 INFO L93 Difference]: Finished difference Result 1827 states and 2516 transitions. [2022-11-03 04:10:44,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:10:44,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:10:44,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:44,631 INFO L225 Difference]: With dead ends: 1827 [2022-11-03 04:10:44,631 INFO L226 Difference]: Without dead ends: 1258 [2022-11-03 04:10:44,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:44,632 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 787 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:44,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1062 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:10:44,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-03 04:10:44,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1233. [2022-11-03 04:10:44,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 1232 states have (on average 1.3628246753246753) internal successors, (1679), 1232 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:44,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1679 transitions. [2022-11-03 04:10:44,650 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1679 transitions. Word has length 524 [2022-11-03 04:10:44,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:44,650 INFO L495 AbstractCegarLoop]: Abstraction has 1233 states and 1679 transitions. [2022-11-03 04:10:44,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:44,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1679 transitions. [2022-11-03 04:10:44,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:44,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:44,654 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:44,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (58)] Ended with exit code 0 [2022-11-03 04:10:44,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:44,855 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:44,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:44,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1743343487, now seen corresponding path program 1 times [2022-11-03 04:10:44,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:44,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707806778] [2022-11-03 04:10:44,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:44,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:44,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:44,861 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:44,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-03 04:10:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:46,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 04:10:46,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:46,841 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:46,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:46,841 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:46,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707806778] [2022-11-03 04:10:46,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707806778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:46,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:46,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:10:46,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772302704] [2022-11-03 04:10:46,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:46,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:10:46,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:46,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:10:46,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:10:46,843 INFO L87 Difference]: Start difference. First operand 1233 states and 1679 transitions. Second operand has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:47,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:47,132 INFO L93 Difference]: Finished difference Result 1874 states and 2576 transitions. [2022-11-03 04:10:47,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:10:47,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:10:47,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:47,133 INFO L225 Difference]: With dead ends: 1874 [2022-11-03 04:10:47,133 INFO L226 Difference]: Without dead ends: 1305 [2022-11-03 04:10:47,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:10:47,134 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 144 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 90 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:47,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2880 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 90 Unchecked, 0.3s Time] [2022-11-03 04:10:47,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-11-03 04:10:47,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2022-11-03 04:10:47,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 1304 states have (on average 1.361963190184049) internal successors, (1776), 1304 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:47,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1776 transitions. [2022-11-03 04:10:47,152 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1776 transitions. Word has length 524 [2022-11-03 04:10:47,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:47,152 INFO L495 AbstractCegarLoop]: Abstraction has 1305 states and 1776 transitions. [2022-11-03 04:10:47,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:47,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1776 transitions. [2022-11-03 04:10:47,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:47,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:47,156 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:47,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:47,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:47,378 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:47,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:47,379 INFO L85 PathProgramCache]: Analyzing trace with hash 847112317, now seen corresponding path program 1 times [2022-11-03 04:10:47,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:47,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99137373] [2022-11-03 04:10:47,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:47,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:47,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:47,384 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:47,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-11-03 04:10:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:48,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:10:48,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:49,137 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:49,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:49,137 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:49,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99137373] [2022-11-03 04:10:49,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99137373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:49,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:49,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:10:49,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312839990] [2022-11-03 04:10:49,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:49,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:10:49,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:49,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:10:49,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:10:49,139 INFO L87 Difference]: Start difference. First operand 1305 states and 1776 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:49,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:49,352 INFO L93 Difference]: Finished difference Result 1911 states and 2628 transitions. [2022-11-03 04:10:49,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:10:49,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:10:49,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:49,354 INFO L225 Difference]: With dead ends: 1911 [2022-11-03 04:10:49,354 INFO L226 Difference]: Without dead ends: 1342 [2022-11-03 04:10:49,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:49,355 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 773 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:49,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1093 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:10:49,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-11-03 04:10:49,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1305. [2022-11-03 04:10:49,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 1304 states have (on average 1.3611963190184049) internal successors, (1775), 1304 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:49,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1775 transitions. [2022-11-03 04:10:49,372 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1775 transitions. Word has length 524 [2022-11-03 04:10:49,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:49,372 INFO L495 AbstractCegarLoop]: Abstraction has 1305 states and 1775 transitions. [2022-11-03 04:10:49,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:49,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1775 transitions. [2022-11-03 04:10:49,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:49,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:49,376 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:49,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (60)] Ended with exit code 0 [2022-11-03 04:10:49,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:49,576 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:49,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:49,577 INFO L85 PathProgramCache]: Analyzing trace with hash 440088831, now seen corresponding path program 1 times [2022-11-03 04:10:49,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:49,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025221775] [2022-11-03 04:10:49,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:49,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:49,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:49,582 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:49,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-03 04:10:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:50,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:10:51,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:51,385 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:51,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:51,386 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:51,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025221775] [2022-11-03 04:10:51,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025221775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:51,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:51,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:10:51,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634183201] [2022-11-03 04:10:51,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:51,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:10:51,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:51,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:10:51,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:10:51,388 INFO L87 Difference]: Start difference. First operand 1305 states and 1775 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:51,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:51,570 INFO L93 Difference]: Finished difference Result 2583 states and 3577 transitions. [2022-11-03 04:10:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:10:51,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:10:51,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:51,572 INFO L225 Difference]: With dead ends: 2583 [2022-11-03 04:10:51,572 INFO L226 Difference]: Without dead ends: 2014 [2022-11-03 04:10:51,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:10:51,573 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 905 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:51,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1974 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:10:51,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2022-11-03 04:10:51,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1347. [2022-11-03 04:10:51,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1346 states have (on average 1.362555720653789) internal successors, (1834), 1346 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:51,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1834 transitions. [2022-11-03 04:10:51,591 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1834 transitions. Word has length 524 [2022-11-03 04:10:51,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:51,591 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 1834 transitions. [2022-11-03 04:10:51,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:51,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1834 transitions. [2022-11-03 04:10:51,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:51,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:51,596 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:51,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Ended with exit code 0 [2022-11-03 04:10:51,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:51,796 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:51,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:51,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1767302527, now seen corresponding path program 1 times [2022-11-03 04:10:51,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:51,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204872973] [2022-11-03 04:10:51,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:51,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:51,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:51,802 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:51,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-11-03 04:10:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:53,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 04:10:53,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:54,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:54,171 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:54,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204872973] [2022-11-03 04:10:54,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204872973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:54,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:54,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:10:54,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168917147] [2022-11-03 04:10:54,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:54,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:10:54,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:54,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:10:54,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:10:54,174 INFO L87 Difference]: Start difference. First operand 1347 states and 1834 transitions. Second operand has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:54,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:54,419 INFO L93 Difference]: Finished difference Result 2644 states and 3605 transitions. [2022-11-03 04:10:54,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:10:54,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:10:54,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:54,422 INFO L225 Difference]: With dead ends: 2644 [2022-11-03 04:10:54,422 INFO L226 Difference]: Without dead ends: 2075 [2022-11-03 04:10:54,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:10:54,424 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 319 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:54,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 2741 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 44 Unchecked, 0.2s Time] [2022-11-03 04:10:54,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2022-11-03 04:10:54,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 2075. [2022-11-03 04:10:54,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 2074 states have (on average 1.3529411764705883) internal successors, (2806), 2074 states have internal predecessors, (2806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:54,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2806 transitions. [2022-11-03 04:10:54,461 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2806 transitions. Word has length 524 [2022-11-03 04:10:54,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:54,462 INFO L495 AbstractCegarLoop]: Abstraction has 2075 states and 2806 transitions. [2022-11-03 04:10:54,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:54,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2806 transitions. [2022-11-03 04:10:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:54,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:54,467 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:54,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (62)] Ended with exit code 0 [2022-11-03 04:10:54,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:54,690 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:54,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:54,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1130747905, now seen corresponding path program 1 times [2022-11-03 04:10:54,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:54,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824639536] [2022-11-03 04:10:54,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:54,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:54,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:54,695 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:54,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-03 04:10:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:56,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 04:10:56,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:58,559 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:10:58,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:10:58,559 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:58,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824639536] [2022-11-03 04:10:58,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824639536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:10:58,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:10:58,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:10:58,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833821798] [2022-11-03 04:10:58,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:10:58,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:10:58,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:58,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:10:58,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:10:58,561 INFO L87 Difference]: Start difference. First operand 2075 states and 2806 transitions. Second operand has 6 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:59,395 INFO L93 Difference]: Finished difference Result 5069 states and 6949 transitions. [2022-11-03 04:10:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:10:59,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:10:59,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:59,399 INFO L225 Difference]: With dead ends: 5069 [2022-11-03 04:10:59,399 INFO L226 Difference]: Without dead ends: 4500 [2022-11-03 04:10:59,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-03 04:10:59,401 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 2642 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:59,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2642 Valid, 2454 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:10:59,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4500 states. [2022-11-03 04:10:59,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4500 to 3547. [2022-11-03 04:10:59,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3547 states, 3546 states have (on average 1.3542019176536944) internal successors, (4802), 3546 states have internal predecessors, (4802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:59,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4802 transitions. [2022-11-03 04:10:59,455 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4802 transitions. Word has length 524 [2022-11-03 04:10:59,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:59,455 INFO L495 AbstractCegarLoop]: Abstraction has 3547 states and 4802 transitions. [2022-11-03 04:10:59,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:10:59,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4802 transitions. [2022-11-03 04:10:59,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:10:59,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:59,462 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:59,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:59,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:59,686 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:59,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:59,687 INFO L85 PathProgramCache]: Analyzing trace with hash 325571329, now seen corresponding path program 1 times [2022-11-03 04:10:59,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:59,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238823160] [2022-11-03 04:10:59,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:59,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:59,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:59,691 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:59,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2022-11-03 04:11:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:01,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 224 conjunts are in the unsatisfiable core [2022-11-03 04:11:01,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:27,373 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:11:27,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:11:27,373 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:11:27,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238823160] [2022-11-03 04:11:27,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238823160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:27,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:27,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 04:11:27,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820444238] [2022-11-03 04:11:27,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:27,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 04:11:27,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:11:27,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 04:11:27,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:11:27,376 INFO L87 Difference]: Start difference. First operand 3547 states and 4802 transitions. Second operand has 14 states, 14 states have (on average 37.42857142857143) internal successors, (524), 14 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:11:28,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:28,809 INFO L93 Difference]: Finished difference Result 6244 states and 8459 transitions. [2022-11-03 04:11:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 04:11:28,812 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 37.42857142857143) internal successors, (524), 14 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:11:28,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:28,823 INFO L225 Difference]: With dead ends: 6244 [2022-11-03 04:11:28,826 INFO L226 Difference]: Without dead ends: 5387 [2022-11-03 04:11:28,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2022-11-03 04:11:28,829 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 1953 mSDsluCounter, 6988 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 7541 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 357 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:28,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 7541 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 357 Unchecked, 0.4s Time] [2022-11-03 04:11:28,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5387 states. [2022-11-03 04:11:28,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5387 to 4581. [2022-11-03 04:11:28,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4581 states, 4580 states have (on average 1.3358078602620087) internal successors, (6118), 4580 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:11:28,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 6118 transitions. [2022-11-03 04:11:28,926 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 6118 transitions. Word has length 524 [2022-11-03 04:11:28,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:28,927 INFO L495 AbstractCegarLoop]: Abstraction has 4581 states and 6118 transitions. [2022-11-03 04:11:28,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 37.42857142857143) internal successors, (524), 14 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:11:28,927 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 6118 transitions. [2022-11-03 04:11:28,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:11:28,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:28,935 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:28,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (64)] Ended with exit code 0 [2022-11-03 04:11:29,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:11:29,150 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:29,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:29,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1774760189, now seen corresponding path program 1 times [2022-11-03 04:11:29,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:11:29,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461687059] [2022-11-03 04:11:29,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:29,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:11:29,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:11:29,155 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:11:29,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-03 04:11:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:30,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 237 conjunts are in the unsatisfiable core [2022-11-03 04:11:30,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:58,095 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:11:58,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:11:58,096 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:11:58,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461687059] [2022-11-03 04:11:58,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461687059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:11:58,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:11:58,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 04:11:58,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024684477] [2022-11-03 04:11:58,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:11:58,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 04:11:58,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:11:58,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 04:11:58,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:11:58,098 INFO L87 Difference]: Start difference. First operand 4581 states and 6118 transitions. Second operand has 14 states, 14 states have (on average 37.42857142857143) internal successors, (524), 14 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:02,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:02,276 INFO L93 Difference]: Finished difference Result 11624 states and 15964 transitions. [2022-11-03 04:12:02,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 04:12:02,277 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 37.42857142857143) internal successors, (524), 14 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:02,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:02,291 INFO L225 Difference]: With dead ends: 11624 [2022-11-03 04:12:02,291 INFO L226 Difference]: Without dead ends: 10767 [2022-11-03 04:12:02,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2022-11-03 04:12:02,294 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 8746 mSDsluCounter, 9840 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8746 SdHoareTripleChecker+Valid, 10670 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:02,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8746 Valid, 10670 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 584 Invalid, 0 Unknown, 108 Unchecked, 1.7s Time] [2022-11-03 04:12:02,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10767 states. [2022-11-03 04:12:02,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10767 to 4583. [2022-11-03 04:12:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4582 states have (on average 1.3356612832824095) internal successors, (6120), 4582 states have internal predecessors, (6120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:02,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 6120 transitions. [2022-11-03 04:12:02,384 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 6120 transitions. Word has length 524 [2022-11-03 04:12:02,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:02,385 INFO L495 AbstractCegarLoop]: Abstraction has 4583 states and 6120 transitions. [2022-11-03 04:12:02,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 37.42857142857143) internal successors, (524), 14 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 6120 transitions. [2022-11-03 04:12:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:02,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:02,393 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:02,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:02,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:02,610 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:02,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:02,611 INFO L85 PathProgramCache]: Analyzing trace with hash -681974907, now seen corresponding path program 1 times [2022-11-03 04:12:02,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:02,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098521704] [2022-11-03 04:12:02,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:02,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:02,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:02,614 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:02,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-11-03 04:12:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:03,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-03 04:12:04,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:12,174 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:12,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:12,174 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:12,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098521704] [2022-11-03 04:12:12,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098521704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:12,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:12,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-03 04:12:12,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139328501] [2022-11-03 04:12:12,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:12,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-03 04:12:12,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:12,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-03 04:12:12,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:12:12,176 INFO L87 Difference]: Start difference. First operand 4583 states and 6120 transitions. Second operand has 26 states, 26 states have (on average 20.153846153846153) internal successors, (524), 26 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:12,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:12,437 INFO L93 Difference]: Finished difference Result 6922 states and 9305 transitions. [2022-11-03 04:12:12,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-03 04:12:12,437 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 20.153846153846153) internal successors, (524), 26 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:12,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:12,442 INFO L225 Difference]: With dead ends: 6922 [2022-11-03 04:12:12,442 INFO L226 Difference]: Without dead ends: 6065 [2022-11-03 04:12:12,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:12:12,444 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 646 mSDsluCounter, 11707 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 12319 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 513 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:12,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 12319 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 513 Unchecked, 0.2s Time] [2022-11-03 04:12:12,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6065 states. [2022-11-03 04:12:12,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6065 to 5749. [2022-11-03 04:12:12,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5749 states, 5748 states have (on average 1.3322894919972164) internal successors, (7658), 5748 states have internal predecessors, (7658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5749 states to 5749 states and 7658 transitions. [2022-11-03 04:12:12,519 INFO L78 Accepts]: Start accepts. Automaton has 5749 states and 7658 transitions. Word has length 524 [2022-11-03 04:12:12,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:12,520 INFO L495 AbstractCegarLoop]: Abstraction has 5749 states and 7658 transitions. [2022-11-03 04:12:12,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 20.153846153846153) internal successors, (524), 26 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:12,520 INFO L276 IsEmpty]: Start isEmpty. Operand 5749 states and 7658 transitions. [2022-11-03 04:12:12,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:12,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:12,529 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:12,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:12,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:12,742 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:12,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:12,743 INFO L85 PathProgramCache]: Analyzing trace with hash 700166279, now seen corresponding path program 1 times [2022-11-03 04:12:12,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:12,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367373836] [2022-11-03 04:12:12,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:12,746 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:12,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:12,746 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:12,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-03 04:12:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:14,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 04:12:14,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:15,705 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:15,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:15,705 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:15,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367373836] [2022-11-03 04:12:15,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367373836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:15,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:15,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:12:15,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297081361] [2022-11-03 04:12:15,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:15,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:12:15,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:15,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:12:15,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:12:15,707 INFO L87 Difference]: Start difference. First operand 5749 states and 7658 transitions. Second operand has 9 states, 9 states have (on average 58.22222222222222) internal successors, (524), 9 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:15,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:15,962 INFO L93 Difference]: Finished difference Result 8758 states and 11869 transitions. [2022-11-03 04:12:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:12:15,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 58.22222222222222) internal successors, (524), 9 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:15,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:15,969 INFO L225 Difference]: With dead ends: 8758 [2022-11-03 04:12:15,970 INFO L226 Difference]: Without dead ends: 7901 [2022-11-03 04:12:15,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:12:15,972 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 1691 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 3950 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:15,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 3950 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 50 Unchecked, 0.2s Time] [2022-11-03 04:12:15,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7901 states. [2022-11-03 04:12:16,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7901 to 6395. [2022-11-03 04:12:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6395 states, 6394 states have (on average 1.3357835470753832) internal successors, (8541), 6394 states have internal predecessors, (8541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 8541 transitions. [2022-11-03 04:12:16,036 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 8541 transitions. Word has length 524 [2022-11-03 04:12:16,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:16,036 INFO L495 AbstractCegarLoop]: Abstraction has 6395 states and 8541 transitions. [2022-11-03 04:12:16,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 58.22222222222222) internal successors, (524), 9 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 8541 transitions. [2022-11-03 04:12:16,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:16,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:16,047 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:16,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:16,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:16,258 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:16,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:16,259 INFO L85 PathProgramCache]: Analyzing trace with hash -321858039, now seen corresponding path program 1 times [2022-11-03 04:12:16,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:16,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334113284] [2022-11-03 04:12:16,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:16,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:16,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:16,262 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:16,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2022-11-03 04:12:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:17,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 04:12:17,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:18,371 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:18,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:18,372 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:18,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334113284] [2022-11-03 04:12:18,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334113284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:18,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:18,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:12:18,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295194559] [2022-11-03 04:12:18,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:18,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:12:18,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:18,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:12:18,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:12:18,374 INFO L87 Difference]: Start difference. First operand 6395 states and 8541 transitions. Second operand has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:18,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:18,457 INFO L93 Difference]: Finished difference Result 9200 states and 12374 transitions. [2022-11-03 04:12:18,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:12:18,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:18,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:18,466 INFO L225 Difference]: With dead ends: 9200 [2022-11-03 04:12:18,466 INFO L226 Difference]: Without dead ends: 8343 [2022-11-03 04:12:18,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:12:18,470 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 193 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:18,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 2933 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 55 Unchecked, 0.0s Time] [2022-11-03 04:12:18,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8343 states. [2022-11-03 04:12:18,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8343 to 8343. [2022-11-03 04:12:18,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8343 states, 8342 states have (on average 1.3382881802924957) internal successors, (11164), 8342 states have internal predecessors, (11164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:18,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8343 states to 8343 states and 11164 transitions. [2022-11-03 04:12:18,563 INFO L78 Accepts]: Start accepts. Automaton has 8343 states and 11164 transitions. Word has length 524 [2022-11-03 04:12:18,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:18,564 INFO L495 AbstractCegarLoop]: Abstraction has 8343 states and 11164 transitions. [2022-11-03 04:12:18,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:18,564 INFO L276 IsEmpty]: Start isEmpty. Operand 8343 states and 11164 transitions. [2022-11-03 04:12:18,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:18,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:18,576 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:18,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:18,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:18,790 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:18,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:18,791 INFO L85 PathProgramCache]: Analyzing trace with hash 2140727047, now seen corresponding path program 1 times [2022-11-03 04:12:18,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:18,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767358294] [2022-11-03 04:12:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:18,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:18,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:18,794 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:18,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-11-03 04:12:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:20,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:12:20,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:20,505 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:20,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:20,505 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:20,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767358294] [2022-11-03 04:12:20,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767358294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:20,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:20,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:12:20,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969806541] [2022-11-03 04:12:20,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:20,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:12:20,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:20,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:12:20,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:12:20,507 INFO L87 Difference]: Start difference. First operand 8343 states and 11164 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:20,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:20,736 INFO L93 Difference]: Finished difference Result 9231 states and 12418 transitions. [2022-11-03 04:12:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:12:20,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:20,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:20,744 INFO L225 Difference]: With dead ends: 9231 [2022-11-03 04:12:20,745 INFO L226 Difference]: Without dead ends: 8374 [2022-11-03 04:12:20,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:12:20,748 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 741 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:20,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1176 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:12:20,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8374 states. [2022-11-03 04:12:20,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8374 to 8343. [2022-11-03 04:12:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8343 states, 8342 states have (on average 1.3381683049628386) internal successors, (11163), 8342 states have internal predecessors, (11163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:20,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8343 states to 8343 states and 11163 transitions. [2022-11-03 04:12:20,842 INFO L78 Accepts]: Start accepts. Automaton has 8343 states and 11163 transitions. Word has length 524 [2022-11-03 04:12:20,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:20,842 INFO L495 AbstractCegarLoop]: Abstraction has 8343 states and 11163 transitions. [2022-11-03 04:12:20,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:20,843 INFO L276 IsEmpty]: Start isEmpty. Operand 8343 states and 11163 transitions. [2022-11-03 04:12:20,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:20,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:20,854 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:20,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Ended with exit code 0 [2022-11-03 04:12:21,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:21,078 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:21,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:21,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1351919369, now seen corresponding path program 1 times [2022-11-03 04:12:21,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:21,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171770173] [2022-11-03 04:12:21,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:21,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:21,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:21,082 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:21,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2022-11-03 04:12:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:22,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 04:12:22,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:23,365 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:23,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:23,365 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:23,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171770173] [2022-11-03 04:12:23,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171770173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:23,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:23,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:12:23,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934134964] [2022-11-03 04:12:23,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:23,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:12:23,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:23,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:12:23,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:12:23,367 INFO L87 Difference]: Start difference. First operand 8343 states and 11163 transitions. Second operand has 6 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:23,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:23,921 INFO L93 Difference]: Finished difference Result 10104 states and 13646 transitions. [2022-11-03 04:12:23,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:12:23,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:23,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:23,928 INFO L225 Difference]: With dead ends: 10104 [2022-11-03 04:12:23,928 INFO L226 Difference]: Without dead ends: 9247 [2022-11-03 04:12:23,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:12:23,931 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 1821 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1821 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:23,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1821 Valid, 2957 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 04:12:23,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9247 states. [2022-11-03 04:12:24,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9247 to 8345. [2022-11-03 04:12:24,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8345 states, 8344 states have (on average 1.3380872483221478) internal successors, (11165), 8344 states have internal predecessors, (11165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:24,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8345 states to 8345 states and 11165 transitions. [2022-11-03 04:12:24,021 INFO L78 Accepts]: Start accepts. Automaton has 8345 states and 11165 transitions. Word has length 524 [2022-11-03 04:12:24,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:24,021 INFO L495 AbstractCegarLoop]: Abstraction has 8345 states and 11165 transitions. [2022-11-03 04:12:24,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:24,021 INFO L276 IsEmpty]: Start isEmpty. Operand 8345 states and 11165 transitions. [2022-11-03 04:12:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:24,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:24,028 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:24,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (70)] Ended with exit code 0 [2022-11-03 04:12:24,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:24,229 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:24,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:24,229 INFO L85 PathProgramCache]: Analyzing trace with hash 952412939, now seen corresponding path program 1 times [2022-11-03 04:12:24,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:24,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345624089] [2022-11-03 04:12:24,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:24,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:24,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:24,233 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:24,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-03 04:12:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:25,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 04:12:25,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:26,534 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:26,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:26,534 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:26,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345624089] [2022-11-03 04:12:26,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345624089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:26,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:26,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:12:26,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92135815] [2022-11-03 04:12:26,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:26,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:12:26,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:26,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:12:26,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:12:26,536 INFO L87 Difference]: Start difference. First operand 8345 states and 11165 transitions. Second operand has 8 states, 8 states have (on average 65.5) internal successors, (524), 8 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:27,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:27,452 INFO L93 Difference]: Finished difference Result 10971 states and 14864 transitions. [2022-11-03 04:12:27,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 04:12:27,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 65.5) internal successors, (524), 8 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:27,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:27,459 INFO L225 Difference]: With dead ends: 10971 [2022-11-03 04:12:27,459 INFO L226 Difference]: Without dead ends: 10112 [2022-11-03 04:12:27,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2022-11-03 04:12:27,461 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 3316 mSDsluCounter, 4753 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3316 SdHoareTripleChecker+Valid, 5612 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:27,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3316 Valid, 5612 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 04:12:27,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10112 states. [2022-11-03 04:12:27,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10112 to 8349. [2022-11-03 04:12:27,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8349 states, 8348 states have (on average 1.3380450407283182) internal successors, (11170), 8348 states have internal predecessors, (11170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:27,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8349 states to 8349 states and 11170 transitions. [2022-11-03 04:12:27,565 INFO L78 Accepts]: Start accepts. Automaton has 8349 states and 11170 transitions. Word has length 524 [2022-11-03 04:12:27,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:27,565 INFO L495 AbstractCegarLoop]: Abstraction has 8349 states and 11170 transitions. [2022-11-03 04:12:27,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 65.5) internal successors, (524), 8 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:27,566 INFO L276 IsEmpty]: Start isEmpty. Operand 8349 states and 11170 transitions. [2022-11-03 04:12:27,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:27,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:27,572 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:27,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Ended with exit code 0 [2022-11-03 04:12:27,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:27,773 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:27,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:27,774 INFO L85 PathProgramCache]: Analyzing trace with hash -2046099443, now seen corresponding path program 1 times [2022-11-03 04:12:27,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:27,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228625231] [2022-11-03 04:12:27,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:27,776 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:27,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:27,777 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:27,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2022-11-03 04:12:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:29,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:12:29,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:29,495 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:29,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:29,495 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:29,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228625231] [2022-11-03 04:12:29,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228625231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:29,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:29,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:12:29,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212770405] [2022-11-03 04:12:29,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:29,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:12:29,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:29,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:12:29,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:12:29,497 INFO L87 Difference]: Start difference. First operand 8349 states and 11170 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:29,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:29,727 INFO L93 Difference]: Finished difference Result 9275 states and 12475 transitions. [2022-11-03 04:12:29,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:12:29,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:29,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:29,733 INFO L225 Difference]: With dead ends: 9275 [2022-11-03 04:12:29,733 INFO L226 Difference]: Without dead ends: 8412 [2022-11-03 04:12:29,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:12:29,735 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 713 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:29,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 1245 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:12:29,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8412 states. [2022-11-03 04:12:29,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8412 to 8349. [2022-11-03 04:12:29,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8349 states, 8348 states have (on average 1.3379252515572593) internal successors, (11169), 8348 states have internal predecessors, (11169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8349 states to 8349 states and 11169 transitions. [2022-11-03 04:12:29,808 INFO L78 Accepts]: Start accepts. Automaton has 8349 states and 11169 transitions. Word has length 524 [2022-11-03 04:12:29,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:29,808 INFO L495 AbstractCegarLoop]: Abstraction has 8349 states and 11169 transitions. [2022-11-03 04:12:29,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:29,809 INFO L276 IsEmpty]: Start isEmpty. Operand 8349 states and 11169 transitions. [2022-11-03 04:12:29,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:29,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:29,815 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:29,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (72)] Ended with exit code 0 [2022-11-03 04:12:30,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:30,016 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:30,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:30,016 INFO L85 PathProgramCache]: Analyzing trace with hash -2014462321, now seen corresponding path program 1 times [2022-11-03 04:12:30,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:30,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335238060] [2022-11-03 04:12:30,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:30,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:30,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:30,020 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:30,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-03 04:12:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:31,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 04:12:31,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:32,213 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:32,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:32,213 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:32,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335238060] [2022-11-03 04:12:32,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335238060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:32,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:32,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:12:32,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854799953] [2022-11-03 04:12:32,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:32,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:12:32,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:32,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:12:32,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:12:32,215 INFO L87 Difference]: Start difference. First operand 8349 states and 11169 transitions. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:32,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:32,670 INFO L93 Difference]: Finished difference Result 10140 states and 13689 transitions. [2022-11-03 04:12:32,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:12:32,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:32,676 INFO L225 Difference]: With dead ends: 10140 [2022-11-03 04:12:32,676 INFO L226 Difference]: Without dead ends: 9277 [2022-11-03 04:12:32,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:12:32,679 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 1197 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:32,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 2321 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:12:32,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9277 states. [2022-11-03 04:12:32,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9277 to 8415. [2022-11-03 04:12:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8415 states, 8414 states have (on average 1.3384834799144283) internal successors, (11262), 8414 states have internal predecessors, (11262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8415 states to 8415 states and 11262 transitions. [2022-11-03 04:12:32,754 INFO L78 Accepts]: Start accepts. Automaton has 8415 states and 11262 transitions. Word has length 524 [2022-11-03 04:12:32,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:32,754 INFO L495 AbstractCegarLoop]: Abstraction has 8415 states and 11262 transitions. [2022-11-03 04:12:32,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:32,755 INFO L276 IsEmpty]: Start isEmpty. Operand 8415 states and 11262 transitions. [2022-11-03 04:12:32,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:32,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:32,761 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:32,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Ended with exit code 0 [2022-11-03 04:12:32,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:32,962 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:32,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:32,962 INFO L85 PathProgramCache]: Analyzing trace with hash -825669747, now seen corresponding path program 1 times [2022-11-03 04:12:32,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:32,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933089817] [2022-11-03 04:12:32,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:32,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:32,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:32,966 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:32,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2022-11-03 04:12:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:34,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 04:12:34,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:35,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:35,279 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:35,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933089817] [2022-11-03 04:12:35,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933089817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:35,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:35,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:12:35,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057766877] [2022-11-03 04:12:35,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:35,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:12:35,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:35,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:12:35,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:12:35,281 INFO L87 Difference]: Start difference. First operand 8415 states and 11262 transitions. Second operand has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:36,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:36,034 INFO L93 Difference]: Finished difference Result 11010 states and 14910 transitions. [2022-11-03 04:12:36,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:12:36,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:36,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:36,040 INFO L225 Difference]: With dead ends: 11010 [2022-11-03 04:12:36,040 INFO L226 Difference]: Without dead ends: 10147 [2022-11-03 04:12:36,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:12:36,043 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 2796 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2796 SdHoareTripleChecker+Valid, 4310 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:36,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2796 Valid, 4310 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:12:36,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10147 states. [2022-11-03 04:12:36,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10147 to 8433. [2022-11-03 04:12:36,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8433 states, 8432 states have (on average 1.338353889943074) internal successors, (11285), 8432 states have internal predecessors, (11285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:36,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8433 states to 8433 states and 11285 transitions. [2022-11-03 04:12:36,113 INFO L78 Accepts]: Start accepts. Automaton has 8433 states and 11285 transitions. Word has length 524 [2022-11-03 04:12:36,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:36,113 INFO L495 AbstractCegarLoop]: Abstraction has 8433 states and 11285 transitions. [2022-11-03 04:12:36,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:36,114 INFO L276 IsEmpty]: Start isEmpty. Operand 8433 states and 11285 transitions. [2022-11-03 04:12:36,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:36,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:36,124 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:36,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (74)] Ended with exit code 0 [2022-11-03 04:12:36,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:36,338 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:36,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:36,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1027839759, now seen corresponding path program 1 times [2022-11-03 04:12:36,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:36,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133487025] [2022-11-03 04:12:36,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:36,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:36,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:36,342 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:36,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-11-03 04:12:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:37,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 04:12:37,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:39,474 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:39,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:39,474 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:39,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133487025] [2022-11-03 04:12:39,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133487025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:39,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:39,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:12:39,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725770367] [2022-11-03 04:12:39,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:39,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:12:39,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:39,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:12:39,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:12:39,476 INFO L87 Difference]: Start difference. First operand 8433 states and 11285 transitions. Second operand has 9 states, 9 states have (on average 58.22222222222222) internal successors, (524), 9 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:39,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:39,989 INFO L93 Difference]: Finished difference Result 12242 states and 16560 transitions. [2022-11-03 04:12:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:12:39,990 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 58.22222222222222) internal successors, (524), 9 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:39,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:39,995 INFO L225 Difference]: With dead ends: 12242 [2022-11-03 04:12:39,995 INFO L226 Difference]: Without dead ends: 11369 [2022-11-03 04:12:39,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 516 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:12:39,997 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 999 mSDsluCounter, 4017 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:39,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 4574 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 55 Unchecked, 0.4s Time] [2022-11-03 04:12:40,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11369 states. [2022-11-03 04:12:40,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11369 to 11214. [2022-11-03 04:12:40,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11214 states, 11213 states have (on average 1.3485240346026932) internal successors, (15121), 11213 states have internal predecessors, (15121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:40,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11214 states to 11214 states and 15121 transitions. [2022-11-03 04:12:40,083 INFO L78 Accepts]: Start accepts. Automaton has 11214 states and 15121 transitions. Word has length 524 [2022-11-03 04:12:40,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:40,083 INFO L495 AbstractCegarLoop]: Abstraction has 11214 states and 15121 transitions. [2022-11-03 04:12:40,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 58.22222222222222) internal successors, (524), 9 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:40,083 INFO L276 IsEmpty]: Start isEmpty. Operand 11214 states and 15121 transitions. [2022-11-03 04:12:40,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:40,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:40,098 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:40,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Ended with exit code 0 [2022-11-03 04:12:40,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:40,314 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:40,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:40,315 INFO L85 PathProgramCache]: Analyzing trace with hash 363847441, now seen corresponding path program 1 times [2022-11-03 04:12:40,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:40,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294447209] [2022-11-03 04:12:40,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:40,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:40,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:40,318 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:40,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2022-11-03 04:12:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:41,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 04:12:41,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:44,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:44,712 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:44,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294447209] [2022-11-03 04:12:44,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294447209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:44,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:44,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 04:12:44,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392404834] [2022-11-03 04:12:44,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:44,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 04:12:44,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:44,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 04:12:44,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:12:44,714 INFO L87 Difference]: Start difference. First operand 11214 states and 15121 transitions. Second operand has 12 states, 12 states have (on average 43.666666666666664) internal successors, (524), 12 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:44,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:44,969 INFO L93 Difference]: Finished difference Result 13835 states and 18770 transitions. [2022-11-03 04:12:44,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 04:12:44,970 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 43.666666666666664) internal successors, (524), 12 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:44,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:44,977 INFO L225 Difference]: With dead ends: 13835 [2022-11-03 04:12:44,977 INFO L226 Difference]: Without dead ends: 12091 [2022-11-03 04:12:44,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:12:44,979 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 1135 mSDsluCounter, 3116 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:44,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 3740 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 57 Unchecked, 0.2s Time] [2022-11-03 04:12:44,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12091 states. [2022-11-03 04:12:45,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12091 to 11280. [2022-11-03 04:12:45,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11280 states, 11279 states have (on average 1.3484351449596594) internal successors, (15209), 11279 states have internal predecessors, (15209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:45,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11280 states to 11280 states and 15209 transitions. [2022-11-03 04:12:45,071 INFO L78 Accepts]: Start accepts. Automaton has 11280 states and 15209 transitions. Word has length 524 [2022-11-03 04:12:45,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:45,071 INFO L495 AbstractCegarLoop]: Abstraction has 11280 states and 15209 transitions. [2022-11-03 04:12:45,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 43.666666666666664) internal successors, (524), 12 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:45,072 INFO L276 IsEmpty]: Start isEmpty. Operand 11280 states and 15209 transitions. [2022-11-03 04:12:45,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:45,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:45,079 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:45,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (76)] Ended with exit code 0 [2022-11-03 04:12:45,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:45,280 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:45,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:45,280 INFO L85 PathProgramCache]: Analyzing trace with hash -986562669, now seen corresponding path program 1 times [2022-11-03 04:12:45,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:45,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765361643] [2022-11-03 04:12:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:45,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:45,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:45,284 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:45,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-03 04:12:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:46,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 04:12:46,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:47,636 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:47,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:47,636 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:47,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765361643] [2022-11-03 04:12:47,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765361643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:47,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:47,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:12:47,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567667197] [2022-11-03 04:12:47,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:47,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:12:47,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:47,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:12:47,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:12:47,639 INFO L87 Difference]: Start difference. First operand 11280 states and 15209 transitions. Second operand has 8 states, 8 states have (on average 65.5) internal successors, (524), 8 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:48,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:48,576 INFO L93 Difference]: Finished difference Result 16476 states and 22512 transitions. [2022-11-03 04:12:48,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 04:12:48,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 65.5) internal successors, (524), 8 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:48,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:48,586 INFO L225 Difference]: With dead ends: 16476 [2022-11-03 04:12:48,586 INFO L226 Difference]: Without dead ends: 14732 [2022-11-03 04:12:48,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2022-11-03 04:12:48,590 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 3286 mSDsluCounter, 4765 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3286 SdHoareTripleChecker+Valid, 5645 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:48,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3286 Valid, 5645 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 04:12:48,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14732 states. [2022-11-03 04:12:48,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14732 to 11300. [2022-11-03 04:12:48,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11300 states, 11299 states have (on average 1.3482609080449597) internal successors, (15234), 11299 states have internal predecessors, (15234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:48,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11300 states to 11300 states and 15234 transitions. [2022-11-03 04:12:48,687 INFO L78 Accepts]: Start accepts. Automaton has 11300 states and 15234 transitions. Word has length 524 [2022-11-03 04:12:48,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:48,687 INFO L495 AbstractCegarLoop]: Abstraction has 11300 states and 15234 transitions. [2022-11-03 04:12:48,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 65.5) internal successors, (524), 8 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:48,688 INFO L276 IsEmpty]: Start isEmpty. Operand 11300 states and 15234 transitions. [2022-11-03 04:12:48,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:48,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:48,695 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:48,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Ended with exit code 0 [2022-11-03 04:12:48,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:48,896 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:48,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:48,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1449996565, now seen corresponding path program 1 times [2022-11-03 04:12:48,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:48,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809384011] [2022-11-03 04:12:48,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:48,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:48,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:48,900 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:48,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2022-11-03 04:12:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:50,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 04:12:50,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:51,136 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:51,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:51,136 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:51,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809384011] [2022-11-03 04:12:51,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809384011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:51,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:51,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:12:51,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593986200] [2022-11-03 04:12:51,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:51,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:12:51,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:51,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:12:51,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:12:51,138 INFO L87 Difference]: Start difference. First operand 11300 states and 15234 transitions. Second operand has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:51,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:51,240 INFO L93 Difference]: Finished difference Result 18770 states and 25395 transitions. [2022-11-03 04:12:51,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:12:51,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:51,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:51,254 INFO L225 Difference]: With dead ends: 18770 [2022-11-03 04:12:51,254 INFO L226 Difference]: Without dead ends: 17010 [2022-11-03 04:12:51,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:12:51,259 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 302 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:51,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 2700 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 45 Unchecked, 0.0s Time] [2022-11-03 04:12:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17010 states. [2022-11-03 04:12:51,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17010 to 17010. [2022-11-03 04:12:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17010 states, 17009 states have (on average 1.3475219001704979) internal successors, (22920), 17009 states have internal predecessors, (22920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:51,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17010 states to 17010 states and 22920 transitions. [2022-11-03 04:12:51,411 INFO L78 Accepts]: Start accepts. Automaton has 17010 states and 22920 transitions. Word has length 524 [2022-11-03 04:12:51,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:51,411 INFO L495 AbstractCegarLoop]: Abstraction has 17010 states and 22920 transitions. [2022-11-03 04:12:51,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:51,411 INFO L276 IsEmpty]: Start isEmpty. Operand 17010 states and 22920 transitions. [2022-11-03 04:12:51,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:51,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:51,423 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:51,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (78)] Ended with exit code 0 [2022-11-03 04:12:51,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:51,624 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:51,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:51,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1451830931, now seen corresponding path program 1 times [2022-11-03 04:12:51,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:51,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622363942] [2022-11-03 04:12:51,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:51,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:51,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:51,628 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:51,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-03 04:12:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:52,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:12:52,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:53,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:53,369 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:53,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622363942] [2022-11-03 04:12:53,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622363942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:53,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:53,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:12:53,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299636305] [2022-11-03 04:12:53,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:53,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:12:53,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:53,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:12:53,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:12:53,371 INFO L87 Difference]: Start difference. First operand 17010 states and 22920 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:53,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:53,621 INFO L93 Difference]: Finished difference Result 18820 states and 25461 transitions. [2022-11-03 04:12:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:12:53,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:53,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:53,632 INFO L225 Difference]: With dead ends: 18820 [2022-11-03 04:12:53,632 INFO L226 Difference]: Without dead ends: 17060 [2022-11-03 04:12:53,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:12:53,636 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 693 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:53,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 1292 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:12:53,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17060 states. [2022-11-03 04:12:53,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17060 to 17010. [2022-11-03 04:12:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17010 states, 17009 states have (on average 1.347404315362455) internal successors, (22918), 17009 states have internal predecessors, (22918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:53,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17010 states to 17010 states and 22918 transitions. [2022-11-03 04:12:53,814 INFO L78 Accepts]: Start accepts. Automaton has 17010 states and 22918 transitions. Word has length 524 [2022-11-03 04:12:53,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:53,814 INFO L495 AbstractCegarLoop]: Abstraction has 17010 states and 22918 transitions. [2022-11-03 04:12:53,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:53,815 INFO L276 IsEmpty]: Start isEmpty. Operand 17010 states and 22918 transitions. [2022-11-03 04:12:53,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:53,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:53,826 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:53,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Ended with exit code 0 [2022-11-03 04:12:54,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:54,027 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:54,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:54,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1697638805, now seen corresponding path program 1 times [2022-11-03 04:12:54,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:54,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152847877] [2022-11-03 04:12:54,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:54,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:54,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:54,031 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:54,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2022-11-03 04:12:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:55,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 04:12:55,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:56,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:56,324 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:56,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152847877] [2022-11-03 04:12:56,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152847877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:56,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:56,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:12:56,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531595301] [2022-11-03 04:12:56,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:56,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:12:56,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:56,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:12:56,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:12:56,326 INFO L87 Difference]: Start difference. First operand 17010 states and 22918 transitions. Second operand has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:57,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:57,118 INFO L93 Difference]: Finished difference Result 22222 states and 30235 transitions. [2022-11-03 04:12:57,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:12:57,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:12:57,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:57,130 INFO L225 Difference]: With dead ends: 22222 [2022-11-03 04:12:57,130 INFO L226 Difference]: Without dead ends: 20462 [2022-11-03 04:12:57,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:12:57,135 INFO L413 NwaCegarLoop]: 897 mSDtfsCounter, 2763 mSDsluCounter, 3455 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 4352 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:57,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2763 Valid, 4352 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:12:57,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20462 states. [2022-11-03 04:12:57,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20462 to 17038. [2022-11-03 04:12:57,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17038 states, 17037 states have (on average 1.3473029289194107) internal successors, (22954), 17037 states have internal predecessors, (22954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:57,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17038 states to 17038 states and 22954 transitions. [2022-11-03 04:12:57,328 INFO L78 Accepts]: Start accepts. Automaton has 17038 states and 22954 transitions. Word has length 524 [2022-11-03 04:12:57,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:57,329 INFO L495 AbstractCegarLoop]: Abstraction has 17038 states and 22954 transitions. [2022-11-03 04:12:57,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:12:57,329 INFO L276 IsEmpty]: Start isEmpty. Operand 17038 states and 22954 transitions. [2022-11-03 04:12:57,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:12:57,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:57,341 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:57,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (80)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:57,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:12:57,542 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:57,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:57,542 INFO L85 PathProgramCache]: Analyzing trace with hash 383808919, now seen corresponding path program 1 times [2022-11-03 04:12:57,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:57,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304913229] [2022-11-03 04:12:57,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:57,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:57,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:57,547 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:57,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-11-03 04:12:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:58,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 04:12:58,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:59,873 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:12:59,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:12:59,873 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:59,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304913229] [2022-11-03 04:12:59,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304913229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:12:59,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:12:59,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:12:59,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85279048] [2022-11-03 04:12:59,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:12:59,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:12:59,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:59,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:12:59,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:12:59,875 INFO L87 Difference]: Start difference. First operand 17038 states and 22954 transitions. Second operand has 8 states, 8 states have (on average 65.5) internal successors, (524), 8 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:00,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:00,868 INFO L93 Difference]: Finished difference Result 22258 states and 30279 transitions. [2022-11-03 04:13:00,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 04:13:00,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 65.5) internal successors, (524), 8 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:13:00,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:00,879 INFO L225 Difference]: With dead ends: 22258 [2022-11-03 04:13:00,879 INFO L226 Difference]: Without dead ends: 20478 [2022-11-03 04:13:00,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2022-11-03 04:13:00,881 INFO L413 NwaCegarLoop]: 897 mSDtfsCounter, 3254 mSDsluCounter, 4775 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 5672 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:00,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 5672 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 04:13:00,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20478 states. [2022-11-03 04:13:00,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20478 to 17046. [2022-11-03 04:13:00,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17046 states, 17045 states have (on average 1.3472572601936053) internal successors, (22964), 17045 states have internal predecessors, (22964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:01,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17046 states to 17046 states and 22964 transitions. [2022-11-03 04:13:01,013 INFO L78 Accepts]: Start accepts. Automaton has 17046 states and 22964 transitions. Word has length 524 [2022-11-03 04:13:01,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:01,013 INFO L495 AbstractCegarLoop]: Abstraction has 17046 states and 22964 transitions. [2022-11-03 04:13:01,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 65.5) internal successors, (524), 8 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:01,014 INFO L276 IsEmpty]: Start isEmpty. Operand 17046 states and 22964 transitions. [2022-11-03 04:13:01,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:13:01,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:01,025 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:01,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Forceful destruction successful, exit code 0 [2022-11-03 04:13:01,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:13:01,226 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:13:01,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:01,226 INFO L85 PathProgramCache]: Analyzing trace with hash -752135527, now seen corresponding path program 1 times [2022-11-03 04:13:01,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:13:01,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436175568] [2022-11-03 04:13:01,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:01,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:13:01,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:13:01,230 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:13:01,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2022-11-03 04:13:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:02,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:13:02,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:13:02,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:13:02,990 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:13:02,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436175568] [2022-11-03 04:13:02,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [436175568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:02,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:13:02,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:13:02,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276562394] [2022-11-03 04:13:02,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:02,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:13:02,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:13:02,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:13:02,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:13:02,992 INFO L87 Difference]: Start difference. First operand 17046 states and 22964 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:03,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:03,248 INFO L93 Difference]: Finished difference Result 18940 states and 25615 transitions. [2022-11-03 04:13:03,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:13:03,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:13:03,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:03,259 INFO L225 Difference]: With dead ends: 18940 [2022-11-03 04:13:03,259 INFO L226 Difference]: Without dead ends: 17152 [2022-11-03 04:13:03,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:13:03,263 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 677 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:03,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 1329 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:13:03,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17152 states. [2022-11-03 04:13:03,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17152 to 17046. [2022-11-03 04:13:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17046 states, 17045 states have (on average 1.3471399237312995) internal successors, (22962), 17045 states have internal predecessors, (22962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:03,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17046 states to 17046 states and 22962 transitions. [2022-11-03 04:13:03,396 INFO L78 Accepts]: Start accepts. Automaton has 17046 states and 22962 transitions. Word has length 524 [2022-11-03 04:13:03,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:03,396 INFO L495 AbstractCegarLoop]: Abstraction has 17046 states and 22962 transitions. [2022-11-03 04:13:03,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 17046 states and 22962 transitions. [2022-11-03 04:13:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:13:03,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:03,410 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:03,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2022-11-03 04:13:03,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:13:03,610 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:13:03,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:03,611 INFO L85 PathProgramCache]: Analyzing trace with hash -468149989, now seen corresponding path program 1 times [2022-11-03 04:13:03,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:13:03,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333342670] [2022-11-03 04:13:03,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:03,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:13:03,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:13:03,615 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:13:03,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-03 04:13:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:05,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 04:13:05,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:13:05,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:13:05,874 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:13:05,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333342670] [2022-11-03 04:13:05,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333342670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:05,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:13:05,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:13:05,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730012399] [2022-11-03 04:13:05,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:05,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:13:05,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:13:05,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:13:05,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:13:05,876 INFO L87 Difference]: Start difference. First operand 17046 states and 22962 transitions. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:06,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:06,377 INFO L93 Difference]: Finished difference Result 20732 states and 28120 transitions. [2022-11-03 04:13:06,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:13:06,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:13:06,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:06,388 INFO L225 Difference]: With dead ends: 20732 [2022-11-03 04:13:06,388 INFO L226 Difference]: Without dead ends: 18944 [2022-11-03 04:13:06,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:13:06,393 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 1157 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:06,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 2355 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:13:06,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18944 states. [2022-11-03 04:13:06,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18944 to 17158. [2022-11-03 04:13:06,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17158 states, 17157 states have (on average 1.3470886518622136) internal successors, (23112), 17157 states have internal predecessors, (23112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:06,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17158 states to 17158 states and 23112 transitions. [2022-11-03 04:13:06,530 INFO L78 Accepts]: Start accepts. Automaton has 17158 states and 23112 transitions. Word has length 524 [2022-11-03 04:13:06,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:06,530 INFO L495 AbstractCegarLoop]: Abstraction has 17158 states and 23112 transitions. [2022-11-03 04:13:06,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:06,530 INFO L276 IsEmpty]: Start isEmpty. Operand 17158 states and 23112 transitions. [2022-11-03 04:13:06,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:13:06,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:06,543 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:06,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Ended with exit code 0 [2022-11-03 04:13:06,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:13:06,744 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:13:06,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:06,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1256692249, now seen corresponding path program 1 times [2022-11-03 04:13:06,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:13:06,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371358658] [2022-11-03 04:13:06,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:06,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:13:06,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:13:06,748 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:13:06,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2022-11-03 04:13:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:08,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 04:13:08,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:13:08,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:13:08,522 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:13:08,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371358658] [2022-11-03 04:13:08,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371358658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:08,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:13:08,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:13:08,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212900390] [2022-11-03 04:13:08,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:08,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:13:08,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:13:08,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:13:08,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:13:08,524 INFO L87 Difference]: Start difference. First operand 17158 states and 23112 transitions. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:08,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:08,829 INFO L93 Difference]: Finished difference Result 18964 states and 25643 transitions. [2022-11-03 04:13:08,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:13:08,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 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 524 [2022-11-03 04:13:08,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:08,840 INFO L225 Difference]: With dead ends: 18964 [2022-11-03 04:13:08,840 INFO L226 Difference]: Without dead ends: 17176 [2022-11-03 04:13:08,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:13:08,844 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 663 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:08,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1358 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:13:08,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17176 states. [2022-11-03 04:13:08,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17176 to 17158. [2022-11-03 04:13:08,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17158 states, 17157 states have (on average 1.3469720813662063) internal successors, (23110), 17157 states have internal predecessors, (23110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:08,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17158 states to 17158 states and 23110 transitions. [2022-11-03 04:13:08,983 INFO L78 Accepts]: Start accepts. Automaton has 17158 states and 23110 transitions. Word has length 524 [2022-11-03 04:13:08,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:08,983 INFO L495 AbstractCegarLoop]: Abstraction has 17158 states and 23110 transitions. [2022-11-03 04:13:08,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:08,983 INFO L276 IsEmpty]: Start isEmpty. Operand 17158 states and 23110 transitions. [2022-11-03 04:13:08,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:13:08,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:08,995 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:09,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (84)] Ended with exit code 0 [2022-11-03 04:13:09,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:13:09,196 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:13:09,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:09,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2135354469, now seen corresponding path program 1 times [2022-11-03 04:13:09,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:13:09,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180542805] [2022-11-03 04:13:09,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:09,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:13:09,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:13:09,200 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:13:09,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-03 04:13:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:10,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 04:13:10,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:11,408 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 162 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:13:11,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:13:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 162 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:13:12,068 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:13:12,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180542805] [2022-11-03 04:13:12,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180542805] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:13:12,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [851935824] [2022-11-03 04:13:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:12,069 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:13:12,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:13:12,074 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:13:12,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Waiting until timeout for monitored process [2022-11-03 04:13:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:14,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:13:14,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:14,638 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-03 04:13:14,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:13:14,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [851935824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:14,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:13:14,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:13:14,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535683402] [2022-11-03 04:13:14,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:14,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:13:14,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:13:14,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:13:14,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:13:14,641 INFO L87 Difference]: Start difference. First operand 17158 states and 23110 transitions. Second operand has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:15,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:15,012 INFO L93 Difference]: Finished difference Result 36226 states and 49231 transitions. [2022-11-03 04:13:15,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:13:15,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 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 524 [2022-11-03 04:13:15,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:15,033 INFO L225 Difference]: With dead ends: 36226 [2022-11-03 04:13:15,033 INFO L226 Difference]: Without dead ends: 34438 [2022-11-03 04:13:15,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1575 GetRequests, 1560 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:13:15,040 INFO L413 NwaCegarLoop]: 1415 mSDtfsCounter, 1513 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:15,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 3105 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:13:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34438 states. [2022-11-03 04:13:15,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34438 to 18094. [2022-11-03 04:13:15,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18094 states, 18093 states have (on average 1.348698391643177) internal successors, (24402), 18093 states have internal predecessors, (24402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:15,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18094 states to 18094 states and 24402 transitions. [2022-11-03 04:13:15,225 INFO L78 Accepts]: Start accepts. Automaton has 18094 states and 24402 transitions. Word has length 524 [2022-11-03 04:13:15,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:15,225 INFO L495 AbstractCegarLoop]: Abstraction has 18094 states and 24402 transitions. [2022-11-03 04:13:15,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:15,225 INFO L276 IsEmpty]: Start isEmpty. Operand 18094 states and 24402 transitions. [2022-11-03 04:13:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:13:15,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:15,237 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:15,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2022-11-03 04:13:15,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Forceful destruction successful, exit code 0 [2022-11-03 04:13:15,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:13:15,638 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:13:15,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:15,639 INFO L85 PathProgramCache]: Analyzing trace with hash -763547171, now seen corresponding path program 1 times [2022-11-03 04:13:15,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:13:15,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58865750] [2022-11-03 04:13:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:15,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:13:15,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:13:15,642 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:13:15,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-03 04:13:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:17,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 04:13:17,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 162 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:13:17,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:13:18,485 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 162 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:13:18,486 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:13:18,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58865750] [2022-11-03 04:13:18,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58865750] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:13:18,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1389607502] [2022-11-03 04:13:18,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:18,486 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:13:18,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:13:18,487 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:13:18,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Waiting until timeout for monitored process [2022-11-03 04:13:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:20,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:13:20,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-03 04:13:20,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:13:20,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1389607502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:20,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:13:20,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:13:20,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564295933] [2022-11-03 04:13:20,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:20,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:13:20,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:13:20,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:13:20,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:13:20,979 INFO L87 Difference]: Start difference. First operand 18094 states and 24402 transitions. Second operand has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:21,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:21,320 INFO L93 Difference]: Finished difference Result 36826 states and 50035 transitions. [2022-11-03 04:13:21,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:13:21,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 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 524 [2022-11-03 04:13:21,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:21,341 INFO L225 Difference]: With dead ends: 36826 [2022-11-03 04:13:21,341 INFO L226 Difference]: Without dead ends: 34102 [2022-11-03 04:13:21,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1575 GetRequests, 1560 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:13:21,349 INFO L413 NwaCegarLoop]: 1415 mSDtfsCounter, 1517 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:21,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 3122 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:13:21,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34102 states. [2022-11-03 04:13:21,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34102 to 18206. [2022-11-03 04:13:21,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18206 states, 18205 states have (on average 1.349189783026641) internal successors, (24562), 18205 states have internal predecessors, (24562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:21,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18206 states to 18206 states and 24562 transitions. [2022-11-03 04:13:21,532 INFO L78 Accepts]: Start accepts. Automaton has 18206 states and 24562 transitions. Word has length 524 [2022-11-03 04:13:21,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:21,532 INFO L495 AbstractCegarLoop]: Abstraction has 18206 states and 24562 transitions. [2022-11-03 04:13:21,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:21,533 INFO L276 IsEmpty]: Start isEmpty. Operand 18206 states and 24562 transitions. [2022-11-03 04:13:21,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:13:21,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:21,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:21,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Ended with exit code 0 [2022-11-03 04:13:21,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Ended with exit code 0 [2022-11-03 04:13:21,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:13:21,946 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:13:21,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:21,947 INFO L85 PathProgramCache]: Analyzing trace with hash -825586785, now seen corresponding path program 1 times [2022-11-03 04:13:21,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:13:21,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572384574] [2022-11-03 04:13:21,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:21,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:13:21,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:13:21,950 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:13:21,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2022-11-03 04:13:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:23,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 04:13:23,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:24,174 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 162 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:13:24,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:13:24,783 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 162 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:13:24,783 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:13:24,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572384574] [2022-11-03 04:13:24,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572384574] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:13:24,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [204828449] [2022-11-03 04:13:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:24,784 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:13:24,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:13:24,785 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:13:24,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (90)] Waiting until timeout for monitored process [2022-11-03 04:13:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:27,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:13:27,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-03 04:13:27,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:13:27,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [204828449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:13:27,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:13:27,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:13:27,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918323586] [2022-11-03 04:13:27,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:13:27,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:13:27,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:13:27,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:13:27,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:13:27,307 INFO L87 Difference]: Start difference. First operand 18206 states and 24562 transitions. Second operand has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:27,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:27,653 INFO L93 Difference]: Finished difference Result 36634 states and 49755 transitions. [2022-11-03 04:13:27,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:13:27,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 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 524 [2022-11-03 04:13:27,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:27,675 INFO L225 Difference]: With dead ends: 36634 [2022-11-03 04:13:27,675 INFO L226 Difference]: Without dead ends: 33798 [2022-11-03 04:13:27,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1575 GetRequests, 1560 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:13:27,684 INFO L413 NwaCegarLoop]: 1415 mSDtfsCounter, 1523 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 3145 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:27,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 3145 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:13:27,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33798 states. [2022-11-03 04:13:27,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33798 to 18310. [2022-11-03 04:13:27,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18310 states, 18309 states have (on average 1.3496094816756787) internal successors, (24710), 18309 states have internal predecessors, (24710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:27,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18310 states to 18310 states and 24710 transitions. [2022-11-03 04:13:27,867 INFO L78 Accepts]: Start accepts. Automaton has 18310 states and 24710 transitions. Word has length 524 [2022-11-03 04:13:27,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:27,868 INFO L495 AbstractCegarLoop]: Abstraction has 18310 states and 24710 transitions. [2022-11-03 04:13:27,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:13:27,868 INFO L276 IsEmpty]: Start isEmpty. Operand 18310 states and 24710 transitions. [2022-11-03 04:13:27,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 04:13:27,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:27,881 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:27,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (90)] Ended with exit code 0 [2022-11-03 04:13:28,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (89)] Ended with exit code 0 [2022-11-03 04:13:28,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:13:28,282 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:13:28,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:28,282 INFO L85 PathProgramCache]: Analyzing trace with hash -16240159, now seen corresponding path program 1 times [2022-11-03 04:13:28,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:13:28,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250641387] [2022-11-03 04:13:28,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:28,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:13:28,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:13:28,286 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:13:28,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2022-11-03 04:13:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:29,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 3959 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 04:13:29,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:30,516 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 162 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:13:30,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:13:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 162 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:13:31,138 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:13:31,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250641387] [2022-11-03 04:13:31,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250641387] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:13:31,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1408323975] [2022-11-03 04:13:31,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:31,139 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:13:31,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:13:31,142 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:13:31,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bb3c85-3669-49c8-95af-a17d0328b245/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (92)] Waiting until timeout for monitored process