./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.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_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/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_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/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_94218c02-56bb-4852-8a69-d37bd5dd5261/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 6b677157534212a257c6ebaef6ec570381f64f6b0290322b8f05d512f722854d --- 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 03:32:14,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:32:14,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:32:14,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:32:14,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:32:14,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:32:14,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:32:14,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:32:14,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:32:14,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:32:14,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:32:14,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:32:14,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:32:14,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:32:14,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:32:14,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:32:14,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:32:14,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:32:14,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:32:14,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:32:14,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:32:14,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:32:14,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:32:14,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:32:14,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:32:14,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:32:14,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:32:14,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:32:14,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:32:14,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:32:14,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:32:14,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:32:14,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:32:14,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:32:14,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:32:14,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:32:14,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:32:14,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:32:14,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:32:14,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:32:14,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:32:14,715 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:32:14,743 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:32:14,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:32:14,744 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:32:14,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:32:14,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:32:14,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:32:14,746 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:32:14,747 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:32:14,747 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:32:14,747 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:32:14,748 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:32:14,748 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:32:14,749 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:32:14,749 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:32:14,749 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:32:14,749 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:32:14,750 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:32:14,750 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:32:14,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:32:14,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:32:14,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:32:14,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:32:14,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:32:14,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:32:14,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:32:14,752 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:32:14,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:32:14,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:32:14,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:32:14,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:32:14,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:32:14,754 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:32:14,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:32:14,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:32:14,755 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:32:14,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:32:14,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:32:14,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:32:14,756 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_94218c02-56bb-4852-8a69-d37bd5dd5261/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b677157534212a257c6ebaef6ec570381f64f6b0290322b8f05d512f722854d [2022-11-03 03:32:15,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:32:15,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:32:15,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:32:15,131 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:32:15,132 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:32:15,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c [2022-11-03 03:32:15,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/data/e114cb30b/f03d4cb8a996440dbf7a79e87934bb49/FLAGeaf1a55ce [2022-11-03 03:32:15,924 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:32:15,924 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c [2022-11-03 03:32:15,951 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/data/e114cb30b/f03d4cb8a996440dbf7a79e87934bb49/FLAGeaf1a55ce [2022-11-03 03:32:16,074 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/data/e114cb30b/f03d4cb8a996440dbf7a79e87934bb49 [2022-11-03 03:32:16,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:32:16,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:32:16,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:32:16,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:32:16,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:32:16,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:32:16" (1/1) ... [2022-11-03 03:32:16,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124765b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:16, skipping insertion in model container [2022-11-03 03:32:16,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:32:16" (1/1) ... [2022-11-03 03:32:16,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:32:16,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:32:16,428 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_94218c02-56bb-4852-8a69-d37bd5dd5261/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c[1107,1120] [2022-11-03 03:32:16,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:32:16,963 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:32:16,975 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_94218c02-56bb-4852-8a69-d37bd5dd5261/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c[1107,1120] [2022-11-03 03:32:17,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:32:17,256 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:32:17,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17 WrapperNode [2022-11-03 03:32:17,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:32:17,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:32:17,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:32:17,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:32:17,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (1/1) ... [2022-11-03 03:32:17,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (1/1) ... [2022-11-03 03:32:17,660 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3072 [2022-11-03 03:32:17,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:32:17,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:32:17,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:32:17,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:32:17,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (1/1) ... [2022-11-03 03:32:17,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (1/1) ... [2022-11-03 03:32:17,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (1/1) ... [2022-11-03 03:32:17,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (1/1) ... [2022-11-03 03:32:17,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (1/1) ... [2022-11-03 03:32:17,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (1/1) ... [2022-11-03 03:32:18,032 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (1/1) ... [2022-11-03 03:32:18,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (1/1) ... [2022-11-03 03:32:18,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:32:18,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:32:18,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:32:18,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:32:18,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (1/1) ... [2022-11-03 03:32:18,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:32:18,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:32:18,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:32:18,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:32:18,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:32:18,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:32:18,826 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:32:18,828 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:32:28,974 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:32:44,854 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:32:44,854 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:32:44,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:32:44 BoogieIcfgContainer [2022-11-03 03:32:44,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:32:44,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:32:44,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:32:44,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:32:44,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:32:16" (1/3) ... [2022-11-03 03:32:44,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613fada7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:32:44, skipping insertion in model container [2022-11-03 03:32:44,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:32:17" (2/3) ... [2022-11-03 03:32:44,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613fada7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:32:44, skipping insertion in model container [2022-11-03 03:32:44,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:32:44" (3/3) ... [2022-11-03 03:32:44,867 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal5.c [2022-11-03 03:32:44,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:32:44,889 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:32:44,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:32:44,947 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;@4fc6703a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:32:44,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:32:44,952 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 03:32:44,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 03:32:44,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:44,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 03:32:44,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:44,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:44,966 INFO L85 PathProgramCache]: Analyzing trace with hash 38488447, now seen corresponding path program 1 times [2022-11-03 03:32:44,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:44,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044237764] [2022-11-03 03:32:44,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:44,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:36:02,410 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 03:39:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:39:17,954 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 03:39:17,956 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 03:39:17,958 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:39:17,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:39:17,965 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 03:39:17,970 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:39:18,058 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 03:39:18,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:39:18 BoogieIcfgContainer [2022-11-03 03:39:18,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:39:18,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:39:18,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:39:18,117 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:39:18,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:32:44" (3/4) ... [2022-11-03 03:39:18,122 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 03:39:18,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:39:18,124 INFO L158 Benchmark]: Toolchain (without parser) took 422044.65ms. Allocated memory was 109.1MB in the beginning and 7.2GB in the end (delta: 7.1GB). Free memory was 78.4MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2022-11-03 03:39:18,124 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory was 66.3MB in the beginning and 66.3MB in the end (delta: 61.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:39:18,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1175.17ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 78.2MB in the beginning and 70.6MB in the end (delta: 7.6MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2022-11-03 03:39:18,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 401.97ms. Allocated memory is still 132.1MB. Free memory was 70.6MB in the beginning and 54.7MB in the end (delta: 15.9MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2022-11-03 03:39:18,132 INFO L158 Benchmark]: Boogie Preprocessor took 451.07ms. Allocated memory was 132.1MB in the beginning and 249.6MB in the end (delta: 117.4MB). Free memory was 54.7MB in the beginning and 171.7MB in the end (delta: -117.0MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-11-03 03:39:18,132 INFO L158 Benchmark]: RCFGBuilder took 26744.99ms. Allocated memory was 249.6MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 171.7MB in the beginning and 5.3GB in the end (delta: -5.1GB). Peak memory consumption was 764.6MB. Max. memory is 16.1GB. [2022-11-03 03:39:18,134 INFO L158 Benchmark]: TraceAbstraction took 393254.66ms. Allocated memory was 5.8GB in the beginning and 7.2GB in the end (delta: 1.4GB). Free memory was 5.3GB in the beginning and 5.1GB in the end (delta: 139.0MB). Peak memory consumption was 4.0GB. Max. memory is 16.1GB. [2022-11-03 03:39:18,135 INFO L158 Benchmark]: Witness Printer took 5.79ms. Allocated memory is still 7.2GB. Free memory is still 5.1GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:39:18,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory was 66.3MB in the beginning and 66.3MB in the end (delta: 61.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1175.17ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 78.2MB in the beginning and 70.6MB in the end (delta: 7.6MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 401.97ms. Allocated memory is still 132.1MB. Free memory was 70.6MB in the beginning and 54.7MB in the end (delta: 15.9MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 451.07ms. Allocated memory was 132.1MB in the beginning and 249.6MB in the end (delta: 117.4MB). Free memory was 54.7MB in the beginning and 171.7MB in the end (delta: -117.0MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * RCFGBuilder took 26744.99ms. Allocated memory was 249.6MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 171.7MB in the beginning and 5.3GB in the end (delta: -5.1GB). Peak memory consumption was 764.6MB. Max. memory is 16.1GB. * TraceAbstraction took 393254.66ms. Allocated memory was 5.8GB in the beginning and 7.2GB in the end (delta: 1.4GB). Free memory was 5.3GB in the beginning and 5.1GB in the end (delta: 139.0MB). Peak memory consumption was 4.0GB. Max. memory is 16.1GB. * Witness Printer took 5.79ms. Allocated memory is still 7.2GB. Free memory is still 5.1GB. 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 1572, 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_184 mask_SORT_184 = (SORT_184)-1 >> (sizeof(SORT_184) * 8 - 4); [L44] const SORT_184 msb_SORT_184 = (SORT_184)1 << (4 - 1); [L46] const SORT_217 mask_SORT_217 = (SORT_217)-1 >> (sizeof(SORT_217) * 8 - 6); [L47] const SORT_217 msb_SORT_217 = (SORT_217)1 << (6 - 1); [L49] const SORT_219 mask_SORT_219 = (SORT_219)-1 >> (sizeof(SORT_219) * 8 - 7); [L50] const SORT_219 msb_SORT_219 = (SORT_219)1 << (7 - 1); [L52] const SORT_222 mask_SORT_222 = (SORT_222)-1 >> (sizeof(SORT_222) * 8 - 9); [L53] const SORT_222 msb_SORT_222 = (SORT_222)1 << (9 - 1); [L55] const SORT_224 mask_SORT_224 = (SORT_224)-1 >> (sizeof(SORT_224) * 8 - 10); [L56] const SORT_224 msb_SORT_224 = (SORT_224)1 << (10 - 1); [L58] const SORT_226 mask_SORT_226 = (SORT_226)-1 >> (sizeof(SORT_226) * 8 - 11); [L59] const SORT_226 msb_SORT_226 = (SORT_226)1 << (11 - 1); [L61] const SORT_228 mask_SORT_228 = (SORT_228)-1 >> (sizeof(SORT_228) * 8 - 12); [L62] const SORT_228 msb_SORT_228 = (SORT_228)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_74 = 3; [L71] const SORT_22 var_80 = 17; [L72] const SORT_22 var_82 = 21; [L73] const SORT_7 var_86 = 0; [L74] const SORT_3 var_135 = 1; [L75] const SORT_15 var_136 = 1; [L76] const SORT_15 var_139 = 3; [L77] const SORT_15 var_142 = 2; [L78] const SORT_15 var_146 = 5; [L79] const SORT_15 var_151 = 6; [L80] const SORT_15 var_155 = 4; [L81] const SORT_1 var_161 = 1; [L82] const SORT_22 var_174 = 11; [L83] const SORT_22 var_176 = 10; [L84] const SORT_22 var_178 = 2; [L85] const SORT_22 var_180 = 9; [L86] const SORT_22 var_193 = 20; [L87] const SORT_22 var_195 = 19; [L88] const SORT_22 var_197 = 18; [L89] const SORT_22 var_199 = 16; [L90] const SORT_22 var_201 = 15; [L91] const SORT_22 var_203 = 14; [L92] const SORT_22 var_205 = 8; [L93] const SORT_22 var_207 = 6; [L94] const SORT_22 var_209 = 3; [L95] const SORT_22 var_211 = 5; [L96] const SORT_22 var_231 = 4; [L97] const SORT_22 var_233 = 1; [L98] const SORT_22 var_243 = 7; [L99] const SORT_22 var_261 = 13; [L100] const SORT_22 var_269 = 12; [L101] const SORT_22 var_290 = 23; [L102] const SORT_22 var_293 = 22; [L103] const SORT_22 var_302 = 25; [L104] const SORT_22 var_305 = 27; [L105] const SORT_22 var_308 = 26; [L106] const SORT_22 var_312 = 29; [L107] const SORT_22 var_315 = 31; [L108] const SORT_22 var_318 = 30; [L109] const SORT_22 var_322 = 28; [L110] const SORT_22 var_328 = 24; [L111] const SORT_217 var_351 = 0; [L112] const SORT_22 var_381 = 0; [L113] const SORT_184 var_410 = 1; [L114] const SORT_184 var_413 = 3; [L115] const SORT_184 var_416 = 2; [L116] const SORT_184 var_420 = 5; [L117] const SORT_184 var_423 = 7; [L118] const SORT_184 var_426 = 6; [L119] const SORT_184 var_430 = 4; [L120] const SORT_184 var_436 = 9; [L121] const SORT_184 var_439 = 11; [L122] const SORT_184 var_442 = 10; [L123] const SORT_184 var_446 = 13; [L124] const SORT_184 var_449 = 15; [L125] const SORT_184 var_452 = 14; [L126] const SORT_184 var_456 = 12; [L127] const SORT_184 var_462 = 8; [L128] const SORT_5 var_657 = 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_87 = __VERIFIER_nondet_uint() & mask_SORT_7; [L172] SORT_5 state_130 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L173] SORT_3 state_504 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L174] SORT_5 state_523 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L175] SORT_15 state_529 = __VERIFIER_nondet_uchar() & mask_SORT_15; [L176] SORT_7 state_541 = __VERIFIER_nondet_uint() & mask_SORT_7; [L177] SORT_1 state_605 = __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_88_arg_1 = var_86; [L190] state_87 = init_88_arg_1 [L191] SORT_5 init_131_arg_1 = var_49; [L192] state_130 = init_131_arg_1 [L193] SORT_3 init_505_arg_1 = var_42; [L194] state_504 = init_505_arg_1 [L195] SORT_5 init_524_arg_1 = var_49; [L196] state_523 = init_524_arg_1 [L197] SORT_15 init_530_arg_1 = var_65; [L198] state_529 = init_530_arg_1 [L199] SORT_7 init_542_arg_1 = var_86; [L200] state_541 = init_542_arg_1 [L201] SORT_1 init_606_arg_1 = var_55; [L202] state_605 = init_606_arg_1 VAL [init_131_arg_1=0, init_44_arg_1=0, init_505_arg_1=0, init_51_arg_1=0, init_524_arg_1=0, init_530_arg_1=0, init_53_arg_1=0, init_542_arg_1=0, init_57_arg_1=0, init_606_arg_1=0, init_67_arg_1=0, init_88_arg_1=0, mask_SORT_1=3, mask_SORT_15=7, mask_SORT_184=15, mask_SORT_217=63, mask_SORT_219=127, mask_SORT_22=31, mask_SORT_222=511, mask_SORT_224=1023, mask_SORT_226=2047, mask_SORT_228=4095, mask_SORT_3=1, mask_SORT_5=255, mask_SORT_7=4294967295, msb_SORT_1=2, msb_SORT_15=4, msb_SORT_184=8, msb_SORT_217=32, msb_SORT_219=64, msb_SORT_22=16, msb_SORT_222=256, msb_SORT_224=512, msb_SORT_226=1024, msb_SORT_228=2048, msb_SORT_3=1, msb_SORT_5=128, msb_SORT_7=2147483648, state_130=0, state_43=0, state_50=0, state_504=0, state_52=0, state_523=0, state_529=0, state_541=0, state_56=0, state_605=0, state_66=0, state_87=0, var_135=1, var_136=1, var_139=3, var_142=2, var_146=5, var_151=6, var_155=4, var_161=1, var_174=11, var_176=10, var_178=2, var_180=9, var_193=20, var_195=19, var_197=18, var_199=16, var_201=15, var_203=14, var_205=8, var_207=6, var_209=3, var_211=5, var_231=4, var_233=1, var_243=7, var_261=13, var_269=12, var_290=23, var_293=22, var_302=25, var_305=27, var_308=26, var_312=29, var_315=31, var_318=30, var_322=28, var_328=24, var_351=0, var_381=0, var_410=1, var_413=3, var_416=2, var_42=0, var_420=5, var_423=7, var_426=6, var_430=4, var_436=9, var_439=11, var_442=10, var_446=13, var_449=15, var_452=14, var_456=12, var_46=2, var_462=8, var_49=0, var_55=0, var_64=7, var_65=0, var_657=3, var_74=3, var_80=17, var_82=21, var_86=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_515_arg_0 = input_4; [L256] SORT_3 var_515_arg_1 = input_21; [L257] SORT_1 var_515 = ((SORT_1)var_515_arg_0 << 1) | var_515_arg_1; [L258] var_515 = var_515 & mask_SORT_1 [L259] SORT_1 var_516_arg_0 = var_515; [L260] SORT_3 var_516 = var_516_arg_0 != 0; [L261] SORT_3 var_517_arg_0 = var_516; [L262] SORT_3 var_517 = ~var_517_arg_0; [L263] SORT_1 var_513_arg_0 = input_2; [L264] SORT_1 var_513_arg_1 = var_161; [L265] SORT_3 var_513 = var_513_arg_0 == var_513_arg_1; [L266] SORT_3 var_514_arg_0 = var_513; [L267] SORT_3 var_514 = ~var_514_arg_0; [L268] SORT_3 var_98_arg_0 = input_19; [L269] SORT_3 var_98_arg_1 = input_18; [L270] SORT_1 var_98 = ((SORT_1)var_98_arg_0 << 1) | var_98_arg_1; [L271] var_98 = var_98 & mask_SORT_1 [L272] SORT_1 var_99_arg_0 = var_98; [L273] var_99_arg_0 ^= var_99_arg_0 >> 4 [L274] var_99_arg_0 ^= var_99_arg_0 >> 2 [L275] var_99_arg_0 ^= var_99_arg_0 >> 1 [L276] SORT_3 var_99 = var_99_arg_0; [L277] var_99 = var_99 & mask_SORT_3 [L278] SORT_15 var_359_arg_0 = input_16; [L279] SORT_15 var_359_arg_1 = var_142; [L280] SORT_3 var_359 = var_359_arg_0 == var_359_arg_1; [L281] SORT_15 var_358_arg_0 = input_16; [L282] SORT_15 var_358_arg_1 = var_136; [L283] SORT_3 var_358 = var_358_arg_0 == var_358_arg_1; [L284] SORT_15 var_357_arg_0 = input_16; [L285] SORT_15 var_357_arg_1 = var_155; [L286] SORT_3 var_357 = var_357_arg_0 == var_357_arg_1; [L287] SORT_15 var_356_arg_0 = input_16; [L288] SORT_15 var_356_arg_1 = var_146; [L289] SORT_3 var_356 = var_356_arg_0 == var_356_arg_1; [L290] SORT_3 var_360_arg_0 = var_357; [L291] SORT_3 var_360_arg_1 = var_356; [L292] SORT_1 var_360 = ((SORT_1)var_360_arg_0 << 1) | var_360_arg_1; [L293] var_360 = var_360 & mask_SORT_1 [L294] SORT_3 var_361_arg_0 = var_358; [L295] SORT_1 var_361_arg_1 = var_360; [L296] SORT_15 var_361 = ((SORT_15)var_361_arg_0 << 2) | var_361_arg_1; [L297] var_361 = var_361 & mask_SORT_15 [L298] SORT_3 var_362_arg_0 = var_359; [L299] SORT_15 var_362_arg_1 = var_361; [L300] SORT_184 var_362 = ((SORT_184)var_362_arg_0 << 3) | var_362_arg_1; [L301] var_362 = var_362 & mask_SORT_184 [L302] SORT_184 var_363_arg_0 = var_362; [L303] SORT_3 var_363 = var_363_arg_0 != 0; [L304] SORT_1 var_162_arg_0 = input_17; [L305] SORT_1 var_162_arg_1 = var_161; [L306] SORT_3 var_162 = var_162_arg_0 == var_162_arg_1; [L307] SORT_15 var_152_arg_0 = input_16; [L308] SORT_15 var_152_arg_1 = var_151; [L309] SORT_3 var_152 = var_152_arg_0 == var_152_arg_1; [L310] SORT_15 var_149_arg_0 = input_16; [L311] SORT_15 var_149_arg_1 = var_64; [L312] SORT_3 var_149 = var_149_arg_0 == var_149_arg_1; [L313] SORT_3 var_153_arg_0 = var_152; [L314] SORT_3 var_153_arg_1 = var_149; [L315] SORT_3 var_153 = var_153_arg_0 | var_153_arg_1; [L316] var_153 = var_153 & mask_SORT_3 [L317] SORT_15 var_147_arg_0 = input_16; [L318] SORT_15 var_147_arg_1 = var_146; [L319] SORT_3 var_147 = var_147_arg_0 == var_147_arg_1; [L320] SORT_15 var_156_arg_0 = input_16; [L321] SORT_15 var_156_arg_1 = var_155; [L322] SORT_3 var_156 = var_156_arg_0 == var_156_arg_1; [L323] SORT_3 var_157_arg_0 = var_147; [L324] SORT_3 var_157_arg_1 = var_156; [L325] SORT_1 var_157 = ((SORT_1)var_157_arg_0 << 1) | var_157_arg_1; [L326] var_157 = var_157 & mask_SORT_1 [L327] SORT_3 var_158_arg_0 = var_153; [L328] SORT_1 var_158_arg_1 = var_157; [L329] SORT_15 var_158 = ((SORT_15)var_158_arg_0 << 2) | var_158_arg_1; [L330] var_158 = var_158 & mask_SORT_15 [L331] SORT_15 var_159_arg_0 = var_158; [L332] SORT_3 var_159 = var_159_arg_0 != 0; [L333] SORT_3 var_150_arg_0 = var_149; [L334] SORT_3 var_150_arg_1 = var_135; [L335] SORT_3 var_150_arg_2 = var_135; [L336] EXPR var_150_arg_0 ? var_150_arg_1 : var_150_arg_2 [L336] SORT_3 var_150 = var_150_arg_0 ? var_150_arg_1 : var_150_arg_2; [L337] SORT_3 var_148_arg_0 = var_147; [L338] SORT_3 var_148_arg_1 = var_42; [L339] SORT_3 var_148_arg_2 = var_42; [L340] EXPR var_148_arg_0 ? var_148_arg_1 : var_148_arg_2 [L340] SORT_3 var_148 = var_148_arg_0 ? var_148_arg_1 : var_148_arg_2; [L341] SORT_3 var_154_arg_0 = var_153; [L342] SORT_3 var_154_arg_1 = var_150; [L343] SORT_3 var_154_arg_2 = var_148; [L344] EXPR var_154_arg_0 ? var_154_arg_1 : var_154_arg_2 [L344] SORT_3 var_154 = var_154_arg_0 ? var_154_arg_1 : var_154_arg_2; [L345] SORT_15 var_143_arg_0 = input_16; [L346] SORT_15 var_143_arg_1 = var_142; [L347] SORT_3 var_143 = var_143_arg_0 == var_143_arg_1; [L348] SORT_15 var_140_arg_0 = input_16; [L349] SORT_15 var_140_arg_1 = var_139; [L350] SORT_3 var_140 = var_140_arg_0 == var_140_arg_1; [L351] SORT_3 var_144_arg_0 = var_143; [L352] SORT_3 var_144_arg_1 = var_140; [L353] SORT_3 var_144 = var_144_arg_0 | var_144_arg_1; [L354] var_144 = var_144 & mask_SORT_3 [L355] SORT_3 var_141_arg_0 = var_140; [L356] SORT_3 var_141_arg_1 = var_135; [L357] SORT_3 var_141_arg_2 = var_42; [L358] EXPR var_141_arg_0 ? var_141_arg_1 : var_141_arg_2 [L358] SORT_3 var_141 = var_141_arg_0 ? var_141_arg_1 : var_141_arg_2; [L359] SORT_15 var_137_arg_0 = input_16; [L360] SORT_15 var_137_arg_1 = var_136; [L361] SORT_3 var_137 = var_137_arg_0 == var_137_arg_1; [L362] SORT_3 var_138_arg_0 = var_137; [L363] SORT_3 var_138_arg_1 = var_42; [L364] SORT_3 var_138_arg_2 = var_135; [L365] EXPR var_138_arg_0 ? var_138_arg_1 : var_138_arg_2 [L365] SORT_3 var_138 = var_138_arg_0 ? var_138_arg_1 : var_138_arg_2; [L366] SORT_3 var_145_arg_0 = var_144; [L367] SORT_3 var_145_arg_1 = var_141; [L368] SORT_3 var_145_arg_2 = var_138; [L369] EXPR var_145_arg_0 ? var_145_arg_1 : var_145_arg_2 [L369] SORT_3 var_145 = var_145_arg_0 ? var_145_arg_1 : var_145_arg_2; [L370] SORT_3 var_160_arg_0 = var_159; [L371] SORT_3 var_160_arg_1 = var_154; [L372] SORT_3 var_160_arg_2 = var_145; [L373] EXPR var_160_arg_0 ? var_160_arg_1 : var_160_arg_2 [L373] SORT_3 var_160 = var_160_arg_0 ? var_160_arg_1 : var_160_arg_2; [L374] var_160 = var_160 & mask_SORT_3 [L375] SORT_1 var_93_arg_0 = input_17; [L376] SORT_1 var_93_arg_1 = var_46; [L377] SORT_3 var_93 = var_93_arg_0 == var_93_arg_1; [L378] SORT_3 var_353_arg_0 = var_162; [L379] SORT_3 var_353_arg_1 = var_93; [L380] SORT_1 var_353 = ((SORT_1)var_353_arg_0 << 1) | var_353_arg_1; [L381] var_353 = var_353 & mask_SORT_1 [L382] SORT_1 var_354_arg_0 = var_353; [L383] SORT_3 var_354 = var_354_arg_0 != 0; [L384] SORT_3 var_355_arg_0 = var_160; [L385] SORT_3 var_355_arg_1 = var_354; [L386] SORT_3 var_355_arg_2 = var_42; [L387] EXPR var_355_arg_0 ? var_355_arg_1 : var_355_arg_2 [L387] SORT_3 var_355 = var_355_arg_0 ? var_355_arg_1 : var_355_arg_2; [L388] SORT_3 var_364_arg_0 = var_363; [L389] SORT_3 var_364_arg_1 = var_162; [L390] SORT_3 var_364_arg_2 = var_355; [L391] EXPR var_364_arg_0 ? var_364_arg_1 : var_364_arg_2 [L391] SORT_3 var_364 = var_364_arg_0 ? var_364_arg_1 : var_364_arg_2; [L392] SORT_1 var_108_arg_0 = input_14; [L393] SORT_1 var_108_arg_1 = var_74; [L394] SORT_3 var_108 = var_108_arg_0 == var_108_arg_1; [L395] SORT_3 var_365_arg_0 = var_364; [L396] SORT_3 var_365_arg_1 = var_108; [L397] SORT_1 var_365 = ((SORT_1)var_365_arg_0 << 1) | var_365_arg_1; [L398] var_365 = var_365 & mask_SORT_1 [L399] SORT_3 var_366_arg_0 = var_99; [L400] SORT_1 var_366_arg_1 = var_365; [L401] SORT_15 var_366 = ((SORT_15)var_366_arg_0 << 2) | var_366_arg_1; [L402] var_366 = var_366 & mask_SORT_15 [L403] SORT_15 var_367_arg_0 = var_366; [L404] SORT_3 var_367 = var_367_arg_0 != 0; [L405] SORT_3 var_368_arg_0 = input_20; [L406] SORT_3 var_368_arg_1 = var_367; [L407] SORT_1 var_368 = ((SORT_1)var_368_arg_0 << 1) | var_368_arg_1; [L408] var_368 = var_368 & mask_SORT_1 [L409] SORT_1 var_369_arg_0 = var_368; [L410] SORT_3 var_369 = var_369_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_506_arg_0 = state_52; [L422] SORT_3 var_506_arg_1 = state_504; [L423] SORT_3 var_506_arg_2 = input_29; [L424] EXPR var_506_arg_0 ? var_506_arg_1 : var_506_arg_2 [L424] SORT_3 var_506 = var_506_arg_0 ? var_506_arg_1 : var_506_arg_2; [L425] SORT_3 var_507_arg_0 = var_59; [L426] SORT_3 var_507_arg_1 = var_506; [L427] SORT_3 var_507_arg_2 = var_42; [L428] EXPR var_507_arg_0 ? var_507_arg_1 : var_507_arg_2 [L428] SORT_3 var_507 = var_507_arg_0 ? var_507_arg_1 : var_507_arg_2; [L429] SORT_3 var_508_arg_0 = var_61; [L430] SORT_3 var_508_arg_1 = var_42; [L431] SORT_3 var_508_arg_2 = var_507; [L432] EXPR var_508_arg_0 ? var_508_arg_1 : var_508_arg_2 [L432] SORT_3 var_508 = var_508_arg_0 ? var_508_arg_1 : var_508_arg_2; [L433] var_508 = var_508 & mask_SORT_3 [L434] SORT_3 var_509_arg_0 = var_369; [L435] SORT_3 var_509_arg_1 = var_508; [L436] SORT_1 var_509 = ((SORT_1)var_509_arg_0 << 1) | var_509_arg_1; [L437] var_509 = var_509 & mask_SORT_1 [L438] SORT_1 var_510_arg_0 = var_509; [L439] SORT_3 var_510 = var_510_arg_0 != 0; [L440] SORT_3 var_109_arg_0 = var_108; [L441] SORT_3 var_109 = ~var_109_arg_0; [L442] var_109 = var_109 & mask_SORT_3 [L443] SORT_3 var_511_arg_0 = var_510; [L444] SORT_3 var_511_arg_1 = var_109; [L445] SORT_1 var_511 = ((SORT_1)var_511_arg_0 << 1) | var_511_arg_1; [L446] var_511 = var_511 & mask_SORT_1 [L447] SORT_1 var_512_arg_0 = var_511; [L448] SORT_3 var_512 = var_512_arg_0 == mask_SORT_1; [L449] SORT_3 var_518_arg_0 = var_514; [L450] SORT_3 var_518_arg_1 = var_512; [L451] SORT_1 var_518 = ((SORT_1)var_518_arg_0 << 1) | var_518_arg_1; [L452] var_518 = var_518 & mask_SORT_1 [L453] SORT_3 var_519_arg_0 = var_517; [L454] SORT_1 var_519_arg_1 = var_518; [L455] SORT_15 var_519 = ((SORT_15)var_519_arg_0 << 2) | var_519_arg_1; [L456] var_519 = var_519 & mask_SORT_15 [L457] SORT_15 var_520_arg_0 = var_519; [L458] SORT_3 var_520 = var_520_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_498_arg_0 = var_47; [L463] SORT_3 var_498_arg_1 = var_99; [L464] SORT_1 var_498 = ((SORT_1)var_498_arg_0 << 1) | var_498_arg_1; [L465] var_498 = var_498 & mask_SORT_1 [L466] SORT_1 var_499_arg_0 = var_498; [L467] SORT_3 var_499 = var_499_arg_0 == mask_SORT_1; [L468] SORT_22 var_319_arg_0 = input_23; [L469] SORT_22 var_319_arg_1 = var_318; [L470] SORT_3 var_319 = var_319_arg_0 == var_319_arg_1; [L471] SORT_22 var_316_arg_0 = input_23; [L472] SORT_22 var_316_arg_1 = var_315; [L473] SORT_3 var_316 = var_316_arg_0 == var_316_arg_1; [L474] SORT_3 var_320_arg_0 = var_319; [L475] SORT_3 var_320_arg_1 = var_316; [L476] SORT_3 var_320 = var_320_arg_0 | var_320_arg_1; [L477] var_320 = var_320 & mask_SORT_3 [L478] SORT_22 var_313_arg_0 = input_23; [L479] SORT_22 var_313_arg_1 = var_312; [L480] SORT_3 var_313 = var_313_arg_0 == var_313_arg_1; [L481] SORT_22 var_323_arg_0 = input_23; [L482] SORT_22 var_323_arg_1 = var_322; [L483] SORT_3 var_323 = var_323_arg_0 == var_323_arg_1; [L484] SORT_3 var_324_arg_0 = var_313; [L485] SORT_3 var_324_arg_1 = var_323; [L486] SORT_1 var_324 = ((SORT_1)var_324_arg_0 << 1) | var_324_arg_1; [L487] var_324 = var_324 & mask_SORT_1 [L488] SORT_3 var_325_arg_0 = var_320; [L489] SORT_1 var_325_arg_1 = var_324; [L490] SORT_15 var_325 = ((SORT_15)var_325_arg_0 << 2) | var_325_arg_1; [L491] var_325 = var_325 & mask_SORT_15 [L492] SORT_15 var_326_arg_0 = var_325; [L493] SORT_3 var_326 = var_326_arg_0 != 0; [L494] SORT_22 var_309_arg_0 = input_23; [L495] SORT_22 var_309_arg_1 = var_308; [L496] SORT_3 var_309 = var_309_arg_0 == var_309_arg_1; [L497] SORT_22 var_306_arg_0 = input_23; [L498] SORT_22 var_306_arg_1 = var_305; [L499] SORT_3 var_306 = var_306_arg_0 == var_306_arg_1; [L500] SORT_3 var_310_arg_0 = var_309; [L501] SORT_3 var_310_arg_1 = var_306; [L502] SORT_3 var_310 = var_310_arg_0 | var_310_arg_1; [L503] var_310 = var_310 & mask_SORT_3 [L504] SORT_22 var_303_arg_0 = input_23; [L505] SORT_22 var_303_arg_1 = var_302; [L506] SORT_3 var_303 = var_303_arg_0 == var_303_arg_1; [L507] SORT_22 var_329_arg_0 = input_23; [L508] SORT_22 var_329_arg_1 = var_328; [L509] SORT_3 var_329 = var_329_arg_0 == var_329_arg_1; [L510] SORT_3 var_330_arg_0 = var_303; [L511] SORT_3 var_330_arg_1 = var_329; [L512] SORT_1 var_330 = ((SORT_1)var_330_arg_0 << 1) | var_330_arg_1; [L513] var_330 = var_330 & mask_SORT_1 [L514] SORT_3 var_331_arg_0 = var_310; [L515] SORT_1 var_331_arg_1 = var_330; [L516] SORT_15 var_331 = ((SORT_15)var_331_arg_0 << 2) | var_331_arg_1; [L517] var_331 = var_331 & mask_SORT_15 [L518] SORT_3 var_332_arg_0 = var_326; [L519] SORT_15 var_332_arg_1 = var_331; [L520] SORT_184 var_332 = ((SORT_184)var_332_arg_0 << 3) | var_332_arg_1; [L521] var_332 = var_332 & mask_SORT_184 [L522] SORT_184 var_333_arg_0 = var_332; [L523] SORT_3 var_333 = var_333_arg_0 != 0; [L524] SORT_22 var_294_arg_0 = input_23; [L525] SORT_22 var_294_arg_1 = var_293; [L526] SORT_3 var_294 = var_294_arg_0 == var_294_arg_1; [L527] SORT_22 var_291_arg_0 = input_23; [L528] SORT_22 var_291_arg_1 = var_290; [L529] SORT_3 var_291 = var_291_arg_0 == var_291_arg_1; [L530] SORT_3 var_295_arg_0 = var_294; [L531] SORT_3 var_295_arg_1 = var_291; [L532] SORT_3 var_295 = var_295_arg_0 | var_295_arg_1; [L533] var_295 = var_295 & mask_SORT_3 [L534] SORT_22 var_288_arg_0 = input_23; [L535] SORT_22 var_288_arg_1 = var_82; [L536] SORT_3 var_288 = var_288_arg_0 == var_288_arg_1; [L537] SORT_22 var_297_arg_0 = input_23; [L538] SORT_22 var_297_arg_1 = var_193; [L539] SORT_3 var_297 = var_297_arg_0 == var_297_arg_1; [L540] SORT_3 var_298_arg_0 = var_288; [L541] SORT_3 var_298_arg_1 = var_297; [L542] SORT_1 var_298 = ((SORT_1)var_298_arg_0 << 1) | var_298_arg_1; [L543] var_298 = var_298 & mask_SORT_1 [L544] SORT_3 var_299_arg_0 = var_295; [L545] SORT_1 var_299_arg_1 = var_298; [L546] SORT_15 var_299 = ((SORT_15)var_299_arg_0 << 2) | var_299_arg_1; [L547] var_299 = var_299 & mask_SORT_15 [L548] SORT_15 var_300_arg_0 = var_299; [L549] SORT_3 var_300 = var_300_arg_0 != 0; [L550] SORT_22 var_285_arg_0 = input_23; [L551] SORT_22 var_285_arg_1 = var_197; [L552] SORT_3 var_285 = var_285_arg_0 == var_285_arg_1; [L553] SORT_22 var_283_arg_0 = input_23; [L554] SORT_22 var_283_arg_1 = var_195; [L555] SORT_3 var_283 = var_283_arg_0 == var_283_arg_1; [L556] SORT_3 var_286_arg_0 = var_285; [L557] SORT_3 var_286_arg_1 = var_283; [L558] SORT_3 var_286 = var_286_arg_0 | var_286_arg_1; [L559] var_286 = var_286 & mask_SORT_3 [L560] SORT_22 var_281_arg_0 = input_23; [L561] SORT_22 var_281_arg_1 = var_80; [L562] SORT_3 var_281 = var_281_arg_0 == var_281_arg_1; [L563] SORT_22 var_335_arg_0 = input_23; [L564] SORT_22 var_335_arg_1 = var_199; [L565] SORT_3 var_335 = var_335_arg_0 == var_335_arg_1; [L566] SORT_3 var_336_arg_0 = var_281; [L567] SORT_3 var_336_arg_1 = var_335; [L568] SORT_1 var_336 = ((SORT_1)var_336_arg_0 << 1) | var_336_arg_1; [L569] var_336 = var_336 & mask_SORT_1 [L570] SORT_3 var_337_arg_0 = var_286; [L571] SORT_1 var_337_arg_1 = var_336; [L572] SORT_15 var_337 = ((SORT_15)var_337_arg_0 << 2) | var_337_arg_1; [L573] var_337 = var_337 & mask_SORT_15 [L574] SORT_3 var_338_arg_0 = var_300; [L575] SORT_15 var_338_arg_1 = var_337; [L576] SORT_184 var_338 = ((SORT_184)var_338_arg_0 << 3) | var_338_arg_1; [L577] var_338 = var_338 & mask_SORT_184 [L578] SORT_3 var_339_arg_0 = var_333; [L579] SORT_184 var_339_arg_1 = var_338; [L580] SORT_22 var_339 = ((SORT_22)var_339_arg_0 << 4) | var_339_arg_1; [L581] var_339 = var_339 & mask_SORT_22 [L582] SORT_22 var_340_arg_0 = var_339; [L583] SORT_3 var_340 = var_340_arg_0 != 0; [L584] SORT_3 var_317_arg_0 = var_316; [L585] SORT_3 var_317_arg_1 = var_135; [L586] SORT_3 var_317_arg_2 = var_135; [L587] EXPR var_317_arg_0 ? var_317_arg_1 : var_317_arg_2 [L587] SORT_3 var_317 = var_317_arg_0 ? var_317_arg_1 : var_317_arg_2; [L588] SORT_3 var_314_arg_0 = var_313; [L589] SORT_3 var_314_arg_1 = var_135; [L590] SORT_3 var_314_arg_2 = var_135; [L591] EXPR var_314_arg_0 ? var_314_arg_1 : var_314_arg_2 [L591] SORT_3 var_314 = var_314_arg_0 ? var_314_arg_1 : var_314_arg_2; [L592] SORT_3 var_321_arg_0 = var_320; [L593] SORT_3 var_321_arg_1 = var_317; [L594] SORT_3 var_321_arg_2 = var_314; [L595] EXPR var_321_arg_0 ? var_321_arg_1 : var_321_arg_2 [L595] SORT_3 var_321 = var_321_arg_0 ? var_321_arg_1 : var_321_arg_2; [L596] SORT_3 var_307_arg_0 = var_306; [L597] SORT_3 var_307_arg_1 = var_135; [L598] SORT_3 var_307_arg_2 = var_135; [L599] EXPR var_307_arg_0 ? var_307_arg_1 : var_307_arg_2 [L599] SORT_3 var_307 = var_307_arg_0 ? var_307_arg_1 : var_307_arg_2; [L600] SORT_3 var_304_arg_0 = var_303; [L601] SORT_3 var_304_arg_1 = var_135; [L602] SORT_3 var_304_arg_2 = var_135; [L603] EXPR var_304_arg_0 ? var_304_arg_1 : var_304_arg_2 [L603] SORT_3 var_304 = var_304_arg_0 ? var_304_arg_1 : var_304_arg_2; [L604] SORT_3 var_311_arg_0 = var_310; [L605] SORT_3 var_311_arg_1 = var_307; [L606] SORT_3 var_311_arg_2 = var_304; [L607] EXPR var_311_arg_0 ? var_311_arg_1 : var_311_arg_2 [L607] SORT_3 var_311 = var_311_arg_0 ? var_311_arg_1 : var_311_arg_2; [L608] SORT_3 var_327_arg_0 = var_326; [L609] SORT_3 var_327_arg_1 = var_321; [L610] SORT_3 var_327_arg_2 = var_311; [L611] EXPR var_327_arg_0 ? var_327_arg_1 : var_327_arg_2 [L611] SORT_3 var_327 = var_327_arg_0 ? var_327_arg_1 : var_327_arg_2; [L612] SORT_3 var_292_arg_0 = var_291; [L613] SORT_3 var_292_arg_1 = var_135; [L614] SORT_3 var_292_arg_2 = var_135; [L615] EXPR var_292_arg_0 ? var_292_arg_1 : var_292_arg_2 [L615] SORT_3 var_292 = var_292_arg_0 ? var_292_arg_1 : var_292_arg_2; [L616] SORT_3 var_289_arg_0 = var_288; [L617] SORT_3 var_289_arg_1 = var_42; [L618] SORT_3 var_289_arg_2 = var_42; [L619] EXPR var_289_arg_0 ? var_289_arg_1 : var_289_arg_2 [L619] SORT_3 var_289 = var_289_arg_0 ? var_289_arg_1 : var_289_arg_2; [L620] SORT_3 var_296_arg_0 = var_295; [L621] SORT_3 var_296_arg_1 = var_292; [L622] SORT_3 var_296_arg_2 = var_289; [L623] EXPR var_296_arg_0 ? var_296_arg_1 : var_296_arg_2 [L623] SORT_3 var_296 = var_296_arg_0 ? var_296_arg_1 : var_296_arg_2; [L624] SORT_3 var_284_arg_0 = var_283; [L625] SORT_3 var_284_arg_1 = var_42; [L626] SORT_3 var_284_arg_2 = var_42; [L627] EXPR var_284_arg_0 ? var_284_arg_1 : var_284_arg_2 [L627] SORT_3 var_284 = var_284_arg_0 ? var_284_arg_1 : var_284_arg_2; [L628] SORT_3 var_282_arg_0 = var_281; [L629] SORT_3 var_282_arg_1 = var_42; [L630] SORT_3 var_282_arg_2 = var_42; [L631] EXPR var_282_arg_0 ? var_282_arg_1 : var_282_arg_2 [L631] SORT_3 var_282 = var_282_arg_0 ? var_282_arg_1 : var_282_arg_2; [L632] SORT_3 var_287_arg_0 = var_286; [L633] SORT_3 var_287_arg_1 = var_284; [L634] SORT_3 var_287_arg_2 = var_282; [L635] EXPR var_287_arg_0 ? var_287_arg_1 : var_287_arg_2 [L635] SORT_3 var_287 = var_287_arg_0 ? var_287_arg_1 : var_287_arg_2; [L636] SORT_3 var_301_arg_0 = var_300; [L637] SORT_3 var_301_arg_1 = var_296; [L638] SORT_3 var_301_arg_2 = var_287; [L639] EXPR var_301_arg_0 ? var_301_arg_1 : var_301_arg_2 [L639] SORT_3 var_301 = var_301_arg_0 ? var_301_arg_1 : var_301_arg_2; [L640] SORT_3 var_334_arg_0 = var_333; [L641] SORT_3 var_334_arg_1 = var_327; [L642] SORT_3 var_334_arg_2 = var_301; [L643] EXPR var_334_arg_0 ? var_334_arg_1 : var_334_arg_2 [L643] SORT_3 var_334 = var_334_arg_0 ? var_334_arg_1 : var_334_arg_2; [L644] SORT_22 var_266_arg_0 = input_23; [L645] SORT_22 var_266_arg_1 = var_203; [L646] SORT_3 var_266 = var_266_arg_0 == var_266_arg_1; [L647] SORT_22 var_264_arg_0 = input_23; [L648] SORT_22 var_264_arg_1 = var_201; [L649] SORT_3 var_264 = var_264_arg_0 == var_264_arg_1; [L650] SORT_3 var_267_arg_0 = var_266; [L651] SORT_3 var_267_arg_1 = var_264; [L652] SORT_3 var_267 = var_267_arg_0 | var_267_arg_1; [L653] var_267 = var_267 & mask_SORT_3 [L654] SORT_22 var_262_arg_0 = input_23; [L655] SORT_22 var_262_arg_1 = var_261; [L656] SORT_3 var_262 = var_262_arg_0 == var_262_arg_1; [L657] SORT_22 var_270_arg_0 = input_23; [L658] SORT_22 var_270_arg_1 = var_269; [L659] SORT_3 var_270 = var_270_arg_0 == var_270_arg_1; [L660] SORT_3 var_271_arg_0 = var_262; [L661] SORT_3 var_271_arg_1 = var_270; [L662] SORT_1 var_271 = ((SORT_1)var_271_arg_0 << 1) | var_271_arg_1; [L663] var_271 = var_271 & mask_SORT_1 [L664] SORT_3 var_272_arg_0 = var_267; [L665] SORT_1 var_272_arg_1 = var_271; [L666] SORT_15 var_272 = ((SORT_15)var_272_arg_0 << 2) | var_272_arg_1; [L667] var_272 = var_272 & mask_SORT_15 [L668] SORT_15 var_273_arg_0 = var_272; [L669] SORT_3 var_273 = var_273_arg_0 != 0; [L670] SORT_22 var_258_arg_0 = input_23; [L671] SORT_22 var_258_arg_1 = var_176; [L672] SORT_3 var_258 = var_258_arg_0 == var_258_arg_1; [L673] SORT_22 var_256_arg_0 = input_23; [L674] SORT_22 var_256_arg_1 = var_174; [L675] SORT_3 var_256 = var_256_arg_0 == var_256_arg_1; [L676] SORT_3 var_259_arg_0 = var_258; [L677] SORT_3 var_259_arg_1 = var_256; [L678] SORT_3 var_259 = var_259_arg_0 | var_259_arg_1; [L679] var_259 = var_259 & mask_SORT_3 [L680] SORT_22 var_254_arg_0 = input_23; [L681] SORT_22 var_254_arg_1 = var_180; [L682] SORT_3 var_254 = var_254_arg_0 == var_254_arg_1; [L683] SORT_22 var_275_arg_0 = input_23; [L684] SORT_22 var_275_arg_1 = var_205; [L685] SORT_3 var_275 = var_275_arg_0 == var_275_arg_1; [L686] SORT_3 var_276_arg_0 = var_254; [L687] SORT_3 var_276_arg_1 = var_275; [L688] SORT_1 var_276 = ((SORT_1)var_276_arg_0 << 1) | var_276_arg_1; [L689] var_276 = var_276 & mask_SORT_1 [L690] SORT_3 var_277_arg_0 = var_259; [L691] SORT_1 var_277_arg_1 = var_276; [L692] SORT_15 var_277 = ((SORT_15)var_277_arg_0 << 2) | var_277_arg_1; [L693] var_277 = var_277 & mask_SORT_15 [L694] SORT_3 var_278_arg_0 = var_273; [L695] SORT_15 var_278_arg_1 = var_277; [L696] SORT_184 var_278 = ((SORT_184)var_278_arg_0 << 3) | var_278_arg_1; [L697] var_278 = var_278 & mask_SORT_184 [L698] SORT_184 var_279_arg_0 = var_278; [L699] SORT_3 var_279 = var_279_arg_0 != 0; [L700] SORT_3 var_265_arg_0 = var_264; [L701] SORT_3 var_265_arg_1 = var_42; [L702] SORT_3 var_265_arg_2 = var_42; [L703] EXPR var_265_arg_0 ? var_265_arg_1 : var_265_arg_2 [L703] SORT_3 var_265 = var_265_arg_0 ? var_265_arg_1 : var_265_arg_2; [L704] SORT_3 var_263_arg_0 = var_262; [L705] SORT_3 var_263_arg_1 = var_135; [L706] SORT_3 var_263_arg_2 = var_135; [L707] EXPR var_263_arg_0 ? var_263_arg_1 : var_263_arg_2 [L707] SORT_3 var_263 = var_263_arg_0 ? var_263_arg_1 : var_263_arg_2; [L708] SORT_3 var_268_arg_0 = var_267; [L709] SORT_3 var_268_arg_1 = var_265; [L710] SORT_3 var_268_arg_2 = var_263; [L711] EXPR var_268_arg_0 ? var_268_arg_1 : var_268_arg_2 [L711] SORT_3 var_268 = var_268_arg_0 ? var_268_arg_1 : var_268_arg_2; [L712] SORT_3 var_257_arg_0 = var_256; [L713] SORT_3 var_257_arg_1 = var_42; [L714] SORT_3 var_257_arg_2 = var_42; [L715] EXPR var_257_arg_0 ? var_257_arg_1 : var_257_arg_2 [L715] SORT_3 var_257 = var_257_arg_0 ? var_257_arg_1 : var_257_arg_2; [L716] SORT_3 var_255_arg_0 = var_254; [L717] SORT_3 var_255_arg_1 = var_42; [L718] SORT_3 var_255_arg_2 = var_42; [L719] EXPR var_255_arg_0 ? var_255_arg_1 : var_255_arg_2 [L719] SORT_3 var_255 = var_255_arg_0 ? var_255_arg_1 : var_255_arg_2; [L720] SORT_3 var_260_arg_0 = var_259; [L721] SORT_3 var_260_arg_1 = var_257; [L722] SORT_3 var_260_arg_2 = var_255; [L723] EXPR var_260_arg_0 ? var_260_arg_1 : var_260_arg_2 [L723] SORT_3 var_260 = var_260_arg_0 ? var_260_arg_1 : var_260_arg_2; [L724] SORT_3 var_274_arg_0 = var_273; [L725] SORT_3 var_274_arg_1 = var_268; [L726] SORT_3 var_274_arg_2 = var_260; [L727] EXPR var_274_arg_0 ? var_274_arg_1 : var_274_arg_2 [L727] SORT_3 var_274 = var_274_arg_0 ? var_274_arg_1 : var_274_arg_2; [L728] SORT_22 var_246_arg_0 = input_23; [L729] SORT_22 var_246_arg_1 = var_207; [L730] SORT_3 var_246 = var_246_arg_0 == var_246_arg_1; [L731] SORT_22 var_244_arg_0 = input_23; [L732] SORT_22 var_244_arg_1 = var_243; [L733] SORT_3 var_244 = var_244_arg_0 == var_244_arg_1; [L734] SORT_3 var_247_arg_0 = var_246; [L735] SORT_3 var_247_arg_1 = var_244; [L736] SORT_3 var_247 = var_247_arg_0 | var_247_arg_1; [L737] var_247 = var_247 & mask_SORT_3 [L738] SORT_22 var_241_arg_0 = input_23; [L739] SORT_22 var_241_arg_1 = var_211; [L740] SORT_3 var_241 = var_241_arg_0 == var_241_arg_1; [L741] SORT_22 var_249_arg_0 = input_23; [L742] SORT_22 var_249_arg_1 = var_231; [L743] SORT_3 var_249 = var_249_arg_0 == var_249_arg_1; [L744] SORT_3 var_250_arg_0 = var_241; [L745] SORT_3 var_250_arg_1 = var_249; [L746] SORT_1 var_250 = ((SORT_1)var_250_arg_0 << 1) | var_250_arg_1; [L747] var_250 = var_250 & mask_SORT_1 [L748] SORT_3 var_251_arg_0 = var_247; [L749] SORT_1 var_251_arg_1 = var_250; [L750] SORT_15 var_251 = ((SORT_15)var_251_arg_0 << 2) | var_251_arg_1; [L751] var_251 = var_251 & mask_SORT_15 [L752] SORT_15 var_252_arg_0 = var_251; [L753] SORT_3 var_252 = var_252_arg_0 != 0; [L754] SORT_3 var_245_arg_0 = var_244; [L755] SORT_3 var_245_arg_1 = var_135; [L756] SORT_3 var_245_arg_2 = var_42; [L757] EXPR var_245_arg_0 ? var_245_arg_1 : var_245_arg_2 [L757] SORT_3 var_245 = var_245_arg_0 ? var_245_arg_1 : var_245_arg_2; [L758] SORT_3 var_242_arg_0 = var_241; [L759] SORT_3 var_242_arg_1 = var_42; [L760] SORT_3 var_242_arg_2 = var_42; [L761] EXPR var_242_arg_0 ? var_242_arg_1 : var_242_arg_2 [L761] SORT_3 var_242 = var_242_arg_0 ? var_242_arg_1 : var_242_arg_2; [L762] SORT_3 var_248_arg_0 = var_247; [L763] SORT_3 var_248_arg_1 = var_245; [L764] SORT_3 var_248_arg_2 = var_242; [L765] EXPR var_248_arg_0 ? var_248_arg_1 : var_248_arg_2 [L765] SORT_3 var_248 = var_248_arg_0 ? var_248_arg_1 : var_248_arg_2; [L766] SORT_22 var_238_arg_0 = input_23; [L767] SORT_22 var_238_arg_1 = var_178; [L768] SORT_3 var_238 = var_238_arg_0 == var_238_arg_1; [L769] SORT_22 var_236_arg_0 = input_23; [L770] SORT_22 var_236_arg_1 = var_209; [L771] SORT_3 var_236 = var_236_arg_0 == var_236_arg_1; [L772] SORT_3 var_239_arg_0 = var_238; [L773] SORT_3 var_239_arg_1 = var_236; [L774] SORT_3 var_239 = var_239_arg_0 | var_239_arg_1; [L775] var_239 = var_239 & mask_SORT_3 [L776] SORT_3 var_237_arg_0 = var_236; [L777] SORT_3 var_237_arg_1 = var_42; [L778] SORT_3 var_237_arg_2 = var_42; [L779] EXPR var_237_arg_0 ? var_237_arg_1 : var_237_arg_2 [L779] SORT_3 var_237 = var_237_arg_0 ? var_237_arg_1 : var_237_arg_2; [L780] SORT_22 var_234_arg_0 = input_23; [L781] SORT_22 var_234_arg_1 = var_233; [L782] SORT_3 var_234 = var_234_arg_0 == var_234_arg_1; [L783] SORT_3 var_235_arg_0 = var_234; [L784] SORT_3 var_235_arg_1 = var_135; [L785] SORT_3 var_235_arg_2 = var_135; [L786] EXPR var_235_arg_0 ? var_235_arg_1 : var_235_arg_2 [L786] SORT_3 var_235 = var_235_arg_0 ? var_235_arg_1 : var_235_arg_2; [L787] SORT_3 var_240_arg_0 = var_239; [L788] SORT_3 var_240_arg_1 = var_237; [L789] SORT_3 var_240_arg_2 = var_235; [L790] EXPR var_240_arg_0 ? var_240_arg_1 : var_240_arg_2 [L790] SORT_3 var_240 = var_240_arg_0 ? var_240_arg_1 : var_240_arg_2; [L791] SORT_3 var_253_arg_0 = var_252; [L792] SORT_3 var_253_arg_1 = var_248; [L793] SORT_3 var_253_arg_2 = var_240; [L794] EXPR var_253_arg_0 ? var_253_arg_1 : var_253_arg_2 [L794] SORT_3 var_253 = var_253_arg_0 ? var_253_arg_1 : var_253_arg_2; [L795] SORT_3 var_280_arg_0 = var_279; [L796] SORT_3 var_280_arg_1 = var_274; [L797] SORT_3 var_280_arg_2 = var_253; [L798] EXPR var_280_arg_0 ? var_280_arg_1 : var_280_arg_2 [L798] SORT_3 var_280 = var_280_arg_0 ? var_280_arg_1 : var_280_arg_2; [L799] SORT_3 var_341_arg_0 = var_340; [L800] SORT_3 var_341_arg_1 = var_334; [L801] SORT_3 var_341_arg_2 = var_280; [L802] EXPR var_341_arg_0 ? var_341_arg_1 : var_341_arg_2 [L802] SORT_3 var_341 = var_341_arg_0 ? var_341_arg_1 : var_341_arg_2; [L803] SORT_22 var_232_arg_0 = input_23; [L804] SORT_22 var_232_arg_1 = var_231; [L805] SORT_3 var_232 = var_232_arg_0 == var_232_arg_1; [L806] SORT_22 var_212_arg_0 = input_23; [L807] SORT_22 var_212_arg_1 = var_211; [L808] SORT_3 var_212 = var_212_arg_0 == var_212_arg_1; [L809] SORT_22 var_210_arg_0 = input_23; [L810] SORT_22 var_210_arg_1 = var_209; [L811] SORT_3 var_210 = var_210_arg_0 == var_210_arg_1; [L812] SORT_22 var_208_arg_0 = input_23; [L813] SORT_22 var_208_arg_1 = var_207; [L814] SORT_3 var_208 = var_208_arg_0 == var_208_arg_1; [L815] SORT_22 var_206_arg_0 = input_23; [L816] SORT_22 var_206_arg_1 = var_205; [L817] SORT_3 var_206 = var_206_arg_0 == var_206_arg_1; [L818] SORT_22 var_204_arg_0 = input_23; [L819] SORT_22 var_204_arg_1 = var_203; [L820] SORT_3 var_204 = var_204_arg_0 == var_204_arg_1; [L821] SORT_22 var_202_arg_0 = input_23; [L822] SORT_22 var_202_arg_1 = var_201; [L823] SORT_3 var_202 = var_202_arg_0 == var_202_arg_1; [L824] SORT_22 var_200_arg_0 = input_23; [L825] SORT_22 var_200_arg_1 = var_199; [L826] SORT_3 var_200 = var_200_arg_0 == var_200_arg_1; [L827] SORT_22 var_81_arg_0 = input_23; [L828] SORT_22 var_81_arg_1 = var_80; [L829] SORT_3 var_81 = var_81_arg_0 == var_81_arg_1; [L830] SORT_22 var_198_arg_0 = input_23; [L831] SORT_22 var_198_arg_1 = var_197; [L832] SORT_3 var_198 = var_198_arg_0 == var_198_arg_1; [L833] SORT_22 var_196_arg_0 = input_23; [L834] SORT_22 var_196_arg_1 = var_195; [L835] SORT_3 var_196 = var_196_arg_0 == var_196_arg_1; [L836] SORT_22 var_194_arg_0 = input_23; [L837] SORT_22 var_194_arg_1 = var_193; [L838] SORT_3 var_194 = var_194_arg_0 == var_194_arg_1; [L839] SORT_22 var_83_arg_0 = input_23; [L840] SORT_22 var_83_arg_1 = var_82; [L841] SORT_3 var_83 = var_83_arg_0 == var_83_arg_1; [L842] SORT_3 var_213_arg_0 = var_194; [L843] SORT_3 var_213_arg_1 = var_83; [L844] SORT_1 var_213 = ((SORT_1)var_213_arg_0 << 1) | var_213_arg_1; [L845] var_213 = var_213 & mask_SORT_1 [L846] SORT_3 var_214_arg_0 = var_196; [L847] SORT_1 var_214_arg_1 = var_213; [L848] SORT_15 var_214 = ((SORT_15)var_214_arg_0 << 2) | var_214_arg_1; [L849] var_214 = var_214 & mask_SORT_15 [L850] SORT_3 var_215_arg_0 = var_198; [L851] SORT_15 var_215_arg_1 = var_214; [L852] SORT_184 var_215 = ((SORT_184)var_215_arg_0 << 3) | var_215_arg_1; [L853] var_215 = var_215 & mask_SORT_184 [L854] SORT_3 var_216_arg_0 = var_81; [L855] SORT_184 var_216_arg_1 = var_215; [L856] SORT_22 var_216 = ((SORT_22)var_216_arg_0 << 4) | var_216_arg_1; [L857] var_216 = var_216 & mask_SORT_22 [L858] SORT_3 var_218_arg_0 = var_200; [L859] SORT_22 var_218_arg_1 = var_216; [L860] SORT_217 var_218 = ((SORT_217)var_218_arg_0 << 5) | var_218_arg_1; [L861] var_218 = var_218 & mask_SORT_217 [L862] SORT_3 var_220_arg_0 = var_202; [L863] SORT_217 var_220_arg_1 = var_218; [L864] SORT_219 var_220 = ((SORT_219)var_220_arg_0 << 6) | var_220_arg_1; [L865] var_220 = var_220 & mask_SORT_219 [L866] SORT_3 var_221_arg_0 = var_204; [L867] SORT_219 var_221_arg_1 = var_220; [L868] SORT_5 var_221 = ((SORT_5)var_221_arg_0 << 7) | var_221_arg_1; [L869] var_221 = var_221 & mask_SORT_5 [L870] SORT_3 var_223_arg_0 = var_206; [L871] SORT_5 var_223_arg_1 = var_221; [L872] SORT_222 var_223 = ((SORT_222)var_223_arg_0 << 8) | var_223_arg_1; [L873] var_223 = var_223 & mask_SORT_222 [L874] SORT_3 var_225_arg_0 = var_208; [L875] SORT_222 var_225_arg_1 = var_223; [L876] SORT_224 var_225 = ((SORT_224)var_225_arg_0 << 9) | var_225_arg_1; [L877] var_225 = var_225 & mask_SORT_224 [L878] SORT_3 var_227_arg_0 = var_210; [L879] SORT_224 var_227_arg_1 = var_225; [L880] SORT_226 var_227 = ((SORT_226)var_227_arg_0 << 10) | var_227_arg_1; [L881] var_227 = var_227 & mask_SORT_226 [L882] SORT_3 var_229_arg_0 = var_212; [L883] SORT_226 var_229_arg_1 = var_227; [L884] SORT_228 var_229 = ((SORT_228)var_229_arg_0 << 11) | var_229_arg_1; [L885] var_229 = var_229 & mask_SORT_228 [L886] SORT_228 var_230_arg_0 = var_229; [L887] SORT_3 var_230 = var_230_arg_0 != 0; [L888] SORT_3 var_342_arg_0 = var_232; [L889] SORT_3 var_342_arg_1 = var_230; [L890] SORT_1 var_342 = ((SORT_1)var_342_arg_0 << 1) | var_342_arg_1; [L891] var_342 = var_342 & mask_SORT_1 [L892] SORT_3 var_343_arg_0 = var_341; [L893] SORT_1 var_343_arg_1 = var_342; [L894] SORT_15 var_343 = ((SORT_15)var_343_arg_0 << 2) | var_343_arg_1; [L895] var_343 = var_343 & mask_SORT_15 [L896] SORT_15 var_344_arg_0 = var_343; [L897] SORT_3 var_344 = var_344_arg_0 != 0; [L898] SORT_3 var_110_arg_0 = input_20; [L899] SORT_3 var_110_arg_1 = var_109; [L900] SORT_1 var_110 = ((SORT_1)var_110_arg_0 << 1) | var_110_arg_1; [L901] var_110 = var_110 & mask_SORT_1 [L902] SORT_1 var_111_arg_0 = var_110; [L903] SORT_3 var_111 = var_111_arg_0 == mask_SORT_1; [L904] SORT_3 var_345_arg_0 = var_344; [L905] SORT_3 var_345_arg_1 = var_111; [L906] SORT_1 var_345 = ((SORT_1)var_345_arg_0 << 1) | var_345_arg_1; [L907] var_345 = var_345 & mask_SORT_1 [L908] SORT_3 var_346_arg_0 = var_99; [L909] SORT_1 var_346_arg_1 = var_345; [L910] SORT_15 var_346 = ((SORT_15)var_346_arg_0 << 2) | var_346_arg_1; [L911] var_346 = var_346 & mask_SORT_15 [L912] SORT_15 var_347_arg_0 = var_346; [L913] SORT_3 var_347 = var_347_arg_0 == mask_SORT_15; [L914] SORT_3 var_92_arg_0 = input_20; [L915] SORT_3 var_92 = ~var_92_arg_0; [L916] var_92 = var_92 & mask_SORT_3 [L917] SORT_3 var_117_arg_0 = input_20; [L918] SORT_3 var_117_arg_1 = var_108; [L919] SORT_1 var_117 = ((SORT_1)var_117_arg_0 << 1) | var_117_arg_1; [L920] var_117 = var_117 & mask_SORT_1 [L921] SORT_1 var_118_arg_0 = var_117; [L922] SORT_3 var_118 = var_118_arg_0 == mask_SORT_1; [L923] SORT_3 var_191_arg_0 = var_92; [L924] SORT_3 var_191_arg_1 = var_118; [L925] SORT_1 var_191 = ((SORT_1)var_191_arg_0 << 1) | var_191_arg_1; [L926] var_191 = var_191 & mask_SORT_1 [L927] SORT_1 var_192_arg_0 = var_191; [L928] SORT_3 var_192 = var_192_arg_0 != 0; [L929] SORT_3 var_348_arg_0 = var_347; [L930] SORT_3 var_348_arg_1 = var_192; [L931] SORT_1 var_348 = ((SORT_1)var_348_arg_0 << 1) | var_348_arg_1; [L932] var_348 = var_348 & mask_SORT_1 [L933] SORT_1 var_349_arg_0 = var_348; [L934] SORT_3 var_349 = var_349_arg_0 != 0; [L935] SORT_22 var_181_arg_0 = input_23; [L936] SORT_22 var_181_arg_1 = var_180; [L937] SORT_3 var_181 = var_181_arg_0 == var_181_arg_1; [L938] SORT_22 var_179_arg_0 = input_23; [L939] SORT_22 var_179_arg_1 = var_178; [L940] SORT_3 var_179 = var_179_arg_0 == var_179_arg_1; [L941] SORT_22 var_177_arg_0 = input_23; [L942] SORT_22 var_177_arg_1 = var_176; [L943] SORT_3 var_177 = var_177_arg_0 == var_177_arg_1; [L944] SORT_22 var_175_arg_0 = input_23; [L945] SORT_22 var_175_arg_1 = var_174; [L946] SORT_3 var_175 = var_175_arg_0 == var_175_arg_1; [L947] SORT_3 var_182_arg_0 = var_177; [L948] SORT_3 var_182_arg_1 = var_175; [L949] SORT_1 var_182 = ((SORT_1)var_182_arg_0 << 1) | var_182_arg_1; [L950] var_182 = var_182 & mask_SORT_1 [L951] SORT_3 var_183_arg_0 = var_179; [L952] SORT_1 var_183_arg_1 = var_182; [L953] SORT_15 var_183 = ((SORT_15)var_183_arg_0 << 2) | var_183_arg_1; [L954] var_183 = var_183 & mask_SORT_15 [L955] SORT_3 var_185_arg_0 = var_181; [L956] SORT_15 var_185_arg_1 = var_183; [L957] SORT_184 var_185 = ((SORT_184)var_185_arg_0 << 3) | var_185_arg_1; [L958] var_185 = var_185 & mask_SORT_184 [L959] SORT_184 var_186_arg_0 = var_185; [L960] SORT_3 var_186 = var_186_arg_0 != 0; [L961] SORT_3 var_187_arg_0 = var_186; [L962] SORT_3 var_187_arg_1 = var_111; [L963] SORT_1 var_187 = ((SORT_1)var_187_arg_0 << 1) | var_187_arg_1; [L964] var_187 = var_187 & mask_SORT_1 [L965] SORT_3 var_188_arg_0 = var_99; [L966] SORT_1 var_188_arg_1 = var_187; [L967] SORT_15 var_188 = ((SORT_15)var_188_arg_0 << 2) | var_188_arg_1; [L968] var_188 = var_188 & mask_SORT_15 [L969] SORT_15 var_189_arg_0 = var_188; [L970] SORT_3 var_189 = var_189_arg_0 == mask_SORT_15; [L971] SORT_3 var_163_arg_0 = var_162; [L972] SORT_3 var_163 = ~var_163_arg_0; [L973] SORT_3 var_171_arg_0 = var_163; [L974] SORT_3 var_171_arg_1 = var_93; [L975] SORT_1 var_171 = ((SORT_1)var_171_arg_0 << 1) | var_171_arg_1; [L976] var_171 = var_171 & mask_SORT_1 [L977] SORT_1 var_172_arg_0 = var_171; [L978] SORT_3 var_172 = var_172_arg_0 == mask_SORT_1; [L979] SORT_3 var_173_arg_0 = var_172; [L980] SORT_3 var_173_arg_1 = var_162; [L981] SORT_1 var_173 = ((SORT_1)var_173_arg_0 << 1) | var_173_arg_1; [L982] SORT_3 var_103_arg_0 = var_99; [L983] SORT_3 var_103 = ~var_103_arg_0; [L984] var_103 = var_103 & mask_SORT_3 [L985] SORT_3 var_168_arg_0 = var_111; [L986] SORT_3 var_168_arg_1 = var_103; [L987] SORT_1 var_168 = ((SORT_1)var_168_arg_0 << 1) | var_168_arg_1; [L988] var_168 = var_168 & mask_SORT_1 [L989] SORT_1 var_169_arg_0 = var_168; [L990] SORT_3 var_169 = var_169_arg_0 == mask_SORT_1; [L991] SORT_3 var_164_arg_0 = var_93; [L992] SORT_3 var_164_arg_1 = var_160; [L993] SORT_1 var_164 = ((SORT_1)var_164_arg_0 << 1) | var_164_arg_1; [L994] var_164 = var_164 & mask_SORT_1 [L995] SORT_3 var_165_arg_0 = var_163; [L996] SORT_1 var_165_arg_1 = var_164; [L997] SORT_15 var_165 = ((SORT_15)var_165_arg_0 << 2) | var_165_arg_1; [L998] var_165 = var_165 & mask_SORT_15 [L999] SORT_15 var_166_arg_0 = var_165; [L1000] SORT_3 var_166 = var_166_arg_0 == mask_SORT_15; [L1001] SORT_3 var_167_arg_0 = var_166; [L1002] SORT_3 var_167_arg_1 = var_42; [L1003] SORT_1 var_167 = ((SORT_1)var_167_arg_0 << 1) | var_167_arg_1; [L1004] SORT_3 var_170_arg_0 = var_169; [L1005] SORT_1 var_170_arg_1 = var_167; [L1006] SORT_1 var_170_arg_2 = var_55; [L1007] EXPR var_170_arg_0 ? var_170_arg_1 : var_170_arg_2 [L1007] SORT_1 var_170 = var_170_arg_0 ? var_170_arg_1 : var_170_arg_2; [L1008] SORT_3 var_190_arg_0 = var_189; [L1009] SORT_1 var_190_arg_1 = var_173; [L1010] SORT_1 var_190_arg_2 = var_170; [L1011] EXPR var_190_arg_0 ? var_190_arg_1 : var_190_arg_2 [L1011] SORT_1 var_190 = var_190_arg_0 ? var_190_arg_1 : var_190_arg_2; [L1012] SORT_3 var_350_arg_0 = var_349; [L1013] SORT_1 var_350_arg_1 = var_55; [L1014] SORT_1 var_350_arg_2 = var_190; [L1015] EXPR var_350_arg_0 ? var_350_arg_1 : var_350_arg_2 [L1015] SORT_1 var_350 = var_350_arg_0 ? var_350_arg_1 : var_350_arg_2; [L1016] var_350 = var_350 & mask_SORT_1 [L1017] SORT_217 var_352_arg_0 = var_351; [L1018] SORT_1 var_352_arg_1 = var_350; [L1019] SORT_5 var_352 = ((SORT_5)var_352_arg_0 << 2) | var_352_arg_1; [L1020] SORT_3 var_132_arg_0 = state_52; [L1021] SORT_5 var_132_arg_1 = state_130; [L1022] SORT_5 var_132_arg_2 = input_27; [L1023] EXPR var_132_arg_0 ? var_132_arg_1 : var_132_arg_2 [L1023] SORT_5 var_132 = var_132_arg_0 ? var_132_arg_1 : var_132_arg_2; [L1024] SORT_3 var_133_arg_0 = var_59; [L1025] SORT_5 var_133_arg_1 = var_132; [L1026] SORT_5 var_133_arg_2 = var_49; [L1027] EXPR var_133_arg_0 ? var_133_arg_1 : var_133_arg_2 [L1027] SORT_5 var_133 = var_133_arg_0 ? var_133_arg_1 : var_133_arg_2; [L1028] SORT_3 var_134_arg_0 = var_61; [L1029] SORT_5 var_134_arg_1 = var_49; [L1030] SORT_5 var_134_arg_2 = var_133; [L1031] EXPR var_134_arg_0 ? var_134_arg_1 : var_134_arg_2 [L1031] SORT_5 var_134 = var_134_arg_0 ? var_134_arg_1 : var_134_arg_2; [L1032] SORT_3 var_370_arg_0 = var_369; [L1033] SORT_5 var_370_arg_1 = var_352; [L1034] SORT_5 var_370_arg_2 = var_134; [L1035] EXPR var_370_arg_0 ? var_370_arg_1 : var_370_arg_2 [L1035] SORT_5 var_370 = var_370_arg_0 ? var_370_arg_1 : var_370_arg_2; [L1036] var_370 = var_370 & mask_SORT_5 [L1037] SORT_5 var_371_arg_0 = var_370; [L1038] SORT_5 var_371_arg_1 = var_49; [L1039] SORT_3 var_371 = var_371_arg_0 == var_371_arg_1; [L1040] SORT_3 var_376_arg_0 = var_371; [L1041] SORT_3 var_376 = ~var_376_arg_0; [L1042] SORT_1 var_94_arg_0 = input_17; [L1043] SORT_1 var_94_arg_1 = var_55; [L1044] SORT_3 var_94 = var_94_arg_0 == var_94_arg_1; [L1045] SORT_3 var_121_arg_0 = var_103; [L1046] SORT_3 var_121_arg_1 = var_94; [L1047] SORT_1 var_121 = ((SORT_1)var_121_arg_0 << 1) | var_121_arg_1; [L1048] var_121 = var_121 & mask_SORT_1 [L1049] SORT_1 var_122_arg_0 = var_121; [L1050] SORT_3 var_122 = var_122_arg_0 == mask_SORT_1; [L1051] SORT_3 var_95_arg_0 = var_94; [L1052] SORT_3 var_95_arg_1 = var_93; [L1053] SORT_1 var_95 = ((SORT_1)var_95_arg_0 << 1) | var_95_arg_1; [L1054] var_95 = var_95 & mask_SORT_1 [L1055] SORT_1 var_96_arg_0 = var_95; [L1056] SORT_3 var_96 = var_96_arg_0 != 0; [L1057] SORT_3 var_119_arg_0 = var_99; [L1058] SORT_3 var_119_arg_1 = var_96; [L1059] SORT_1 var_119 = ((SORT_1)var_119_arg_0 << 1) | var_119_arg_1; [L1060] var_119 = var_119 & mask_SORT_1 [L1061] SORT_1 var_120_arg_0 = var_119; [L1062] SORT_3 var_120 = var_120_arg_0 == mask_SORT_1; [L1063] SORT_3 var_123_arg_0 = var_122; [L1064] SORT_3 var_123_arg_1 = var_120; [L1065] SORT_1 var_123 = ((SORT_1)var_123_arg_0 << 1) | var_123_arg_1; [L1066] var_123 = var_123 & mask_SORT_1 [L1067] SORT_1 var_124_arg_0 = var_123; [L1068] SORT_3 var_124 = var_124_arg_0 != 0; [L1069] SORT_3 var_125_arg_0 = var_111; [L1070] SORT_3 var_125_arg_1 = var_124; [L1071] SORT_1 var_125 = ((SORT_1)var_125_arg_0 << 1) | var_125_arg_1; [L1072] var_125 = var_125 & mask_SORT_1 [L1073] SORT_1 var_126_arg_0 = var_125; [L1074] SORT_3 var_126 = var_126_arg_0 == mask_SORT_1; [L1075] SORT_3 var_127_arg_0 = var_126; [L1076] SORT_3 var_127_arg_1 = var_118; [L1077] SORT_1 var_127 = ((SORT_1)var_127_arg_0 << 1) | var_127_arg_1; [L1078] var_127 = var_127 & mask_SORT_1 [L1079] SORT_1 var_128_arg_0 = var_127; [L1080] SORT_3 var_128 = var_128_arg_0 != 0; [L1081] SORT_3 var_102_arg_0 = var_94; [L1082] SORT_3 var_102 = ~var_102_arg_0; [L1083] var_102 = var_102 & mask_SORT_3 [L1084] SORT_3 var_104_arg_0 = var_103; [L1085] SORT_3 var_104_arg_1 = var_102; [L1086] SORT_1 var_104 = ((SORT_1)var_104_arg_0 << 1) | var_104_arg_1; [L1087] var_104 = var_104 & mask_SORT_1 [L1088] SORT_1 var_105_arg_0 = var_104; [L1089] SORT_3 var_105 = var_105_arg_0 == mask_SORT_1; [L1090] SORT_3 var_97_arg_0 = var_96; [L1091] SORT_3 var_97 = ~var_97_arg_0; [L1092] var_97 = var_97 & mask_SORT_3 [L1093] SORT_3 var_100_arg_0 = var_99; [L1094] SORT_3 var_100_arg_1 = var_97; [L1095] SORT_1 var_100 = ((SORT_1)var_100_arg_0 << 1) | var_100_arg_1; [L1096] var_100 = var_100 & mask_SORT_1 [L1097] SORT_1 var_101_arg_0 = var_100; [L1098] SORT_3 var_101 = var_101_arg_0 == mask_SORT_1; [L1099] SORT_3 var_106_arg_0 = var_105; [L1100] SORT_3 var_106_arg_1 = var_101; [L1101] SORT_1 var_106 = ((SORT_1)var_106_arg_0 << 1) | var_106_arg_1; [L1102] var_106 = var_106 & mask_SORT_1 [L1103] SORT_1 var_107_arg_0 = var_106; [L1104] SORT_3 var_107 = var_107_arg_0 != 0; [L1105] SORT_3 var_112_arg_0 = var_111; [L1106] SORT_3 var_112_arg_1 = var_107; [L1107] SORT_1 var_112 = ((SORT_1)var_112_arg_0 << 1) | var_112_arg_1; [L1108] var_112 = var_112 & mask_SORT_1 [L1109] SORT_1 var_113_arg_0 = var_112; [L1110] SORT_3 var_113 = var_113_arg_0 == mask_SORT_1; [L1111] SORT_3 var_114_arg_0 = var_113; [L1112] SORT_3 var_114_arg_1 = var_92; [L1113] SORT_1 var_114 = ((SORT_1)var_114_arg_0 << 1) | var_114_arg_1; [L1114] var_114 = var_114 & mask_SORT_1 [L1115] SORT_1 var_115_arg_0 = var_114; [L1116] SORT_3 var_115 = var_115_arg_0 != 0; [L1117] SORT_3 var_89_arg_0 = state_52; [L1118] SORT_7 var_89_arg_1 = state_87; [L1119] SORT_7 var_89_arg_2 = input_25; [L1120] EXPR var_89_arg_0 ? var_89_arg_1 : var_89_arg_2 [L1120] SORT_7 var_89 = var_89_arg_0 ? var_89_arg_1 : var_89_arg_2; [L1121] SORT_3 var_90_arg_0 = var_59; [L1122] SORT_7 var_90_arg_1 = var_89; [L1123] SORT_7 var_90_arg_2 = var_86; [L1124] EXPR var_90_arg_0 ? var_90_arg_1 : var_90_arg_2 [L1124] SORT_7 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L1125] SORT_3 var_91_arg_0 = var_61; [L1126] SORT_7 var_91_arg_1 = var_86; [L1127] SORT_7 var_91_arg_2 = var_90; [L1128] EXPR var_91_arg_0 ? var_91_arg_1 : var_91_arg_2 [L1128] SORT_7 var_91 = var_91_arg_0 ? var_91_arg_1 : var_91_arg_2; [L1129] SORT_3 var_116_arg_0 = var_115; [L1130] SORT_7 var_116_arg_1 = var_91; [L1131] SORT_7 var_116_arg_2 = var_86; [L1132] EXPR var_116_arg_0 ? var_116_arg_1 : var_116_arg_2 [L1132] SORT_7 var_116 = var_116_arg_0 ? var_116_arg_1 : var_116_arg_2; [L1133] SORT_3 var_129_arg_0 = var_128; [L1134] SORT_7 var_129_arg_1 = input_8; [L1135] SORT_7 var_129_arg_2 = var_116; [L1136] EXPR var_129_arg_0 ? var_129_arg_1 : var_129_arg_2 [L1136] SORT_7 var_129 = var_129_arg_0 ? var_129_arg_1 : var_129_arg_2; [L1137] SORT_7 var_490_arg_0 = var_129; [L1138] SORT_3 var_490 = var_490_arg_0 >> 15; [L1139] SORT_3 var_480_arg_0 = var_194; [L1140] SORT_3 var_480_arg_1 = var_200; [L1141] SORT_1 var_480 = ((SORT_1)var_480_arg_0 << 1) | var_480_arg_1; [L1142] var_480 = var_480 & mask_SORT_1 [L1143] SORT_1 var_481_arg_0 = var_480; [L1144] SORT_3 var_481 = var_481_arg_0 != 0; [L1145] SORT_3 var_476_arg_0 = var_196; [L1146] SORT_3 var_476_arg_1 = var_202; [L1147] SORT_1 var_476 = ((SORT_1)var_476_arg_0 << 1) | var_476_arg_1; [L1148] var_476 = var_476 & mask_SORT_1 [L1149] SORT_1 var_477_arg_0 = var_476; [L1150] SORT_3 var_477 = var_477_arg_0 != 0; [L1151] SORT_3 var_472_arg_0 = var_198; [L1152] SORT_3 var_472_arg_1 = var_204; [L1153] SORT_1 var_472 = ((SORT_1)var_472_arg_0 << 1) | var_472_arg_1; [L1154] var_472 = var_472 & mask_SORT_1 [L1155] SORT_1 var_473_arg_0 = var_472; [L1156] SORT_3 var_473 = var_473_arg_0 != 0; [L1157] SORT_3 var_403_arg_0 = var_194; [L1158] SORT_3 var_403_arg_1 = var_200; [L1159] SORT_1 var_403 = ((SORT_1)var_403_arg_0 << 1) | var_403_arg_1; [L1160] var_403 = var_403 & mask_SORT_1 [L1161] SORT_3 var_404_arg_0 = var_81; [L1162] SORT_1 var_404_arg_1 = var_403; [L1163] SORT_15 var_404 = ((SORT_15)var_404_arg_0 << 2) | var_404_arg_1; [L1164] var_404 = var_404 & mask_SORT_15 [L1165] SORT_3 var_405_arg_0 = var_83; [L1166] SORT_15 var_405_arg_1 = var_404; [L1167] SORT_184 var_405 = ((SORT_184)var_405_arg_0 << 3) | var_405_arg_1; [L1168] var_405 = var_405 & mask_SORT_184 [L1169] SORT_184 var_406_arg_0 = var_405; [L1170] var_406_arg_0 ^= var_406_arg_0 >> 4 [L1171] var_406_arg_0 ^= var_406_arg_0 >> 2 [L1172] var_406_arg_0 ^= var_406_arg_0 >> 1 [L1173] SORT_3 var_406 = var_406_arg_0; [L1174] SORT_3 var_399_arg_0 = var_198; [L1175] SORT_3 var_399_arg_1 = var_204; [L1176] SORT_1 var_399 = ((SORT_1)var_399_arg_0 << 1) | var_399_arg_1; [L1177] var_399 = var_399 & mask_SORT_1 [L1178] SORT_3 var_400_arg_0 = var_202; [L1179] SORT_1 var_400_arg_1 = var_399; [L1180] SORT_15 var_400 = ((SORT_15)var_400_arg_0 << 2) | var_400_arg_1; [L1181] var_400 = var_400 & mask_SORT_15 [L1182] SORT_3 var_401_arg_0 = var_196; [L1183] SORT_15 var_401_arg_1 = var_400; [L1184] SORT_184 var_401 = ((SORT_184)var_401_arg_0 << 3) | var_401_arg_1; [L1185] var_401 = var_401 & mask_SORT_184 [L1186] SORT_184 var_402_arg_0 = var_401; [L1187] var_402_arg_0 ^= var_402_arg_0 >> 4 [L1188] var_402_arg_0 ^= var_402_arg_0 >> 2 [L1189] var_402_arg_0 ^= var_402_arg_0 >> 1 [L1190] SORT_3 var_402 = var_402_arg_0; [L1191] SORT_22 var_386_arg_0 = input_23; [L1192] SORT_22 var_386_arg_1 = var_233; [L1193] SORT_3 var_386 = var_386_arg_0 == var_386_arg_1; [L1194] SORT_22 var_383_arg_0 = input_23; [L1195] SORT_22 var_383_arg_1 = var_269; [L1196] SORT_3 var_383 = var_383_arg_0 == var_383_arg_1; [L1197] SORT_3 var_393_arg_0 = var_386; [L1198] SORT_3 var_393_arg_1 = var_383; [L1199] SORT_1 var_393 = ((SORT_1)var_393_arg_0 << 1) | var_393_arg_1; [L1200] var_393 = var_393 & mask_SORT_1 [L1201] SORT_3 var_394_arg_0 = var_202; [L1202] SORT_1 var_394_arg_1 = var_393; [L1203] SORT_15 var_394 = ((SORT_15)var_394_arg_0 << 2) | var_394_arg_1; [L1204] var_394 = var_394 & mask_SORT_15 [L1205] SORT_3 var_395_arg_0 = var_196; [L1206] SORT_15 var_395_arg_1 = var_394; [L1207] SORT_184 var_395 = ((SORT_184)var_395_arg_0 << 3) | var_395_arg_1; [L1208] var_395 = var_395 & mask_SORT_184 [L1209] SORT_3 var_396_arg_0 = var_81; [L1210] SORT_184 var_396_arg_1 = var_395; [L1211] SORT_22 var_396 = ((SORT_22)var_396_arg_0 << 4) | var_396_arg_1; [L1212] var_396 = var_396 & mask_SORT_22 [L1213] SORT_3 var_397_arg_0 = var_83; [L1214] SORT_22 var_397_arg_1 = var_396; [L1215] SORT_217 var_397 = ((SORT_217)var_397_arg_0 << 5) | var_397_arg_1; [L1216] var_397 = var_397 & mask_SORT_217 [L1217] SORT_217 var_398_arg_0 = var_397; [L1218] var_398_arg_0 ^= var_398_arg_0 >> 4 [L1219] var_398_arg_0 ^= var_398_arg_0 >> 2 [L1220] var_398_arg_0 ^= var_398_arg_0 >> 1 [L1221] SORT_3 var_398 = var_398_arg_0; [L1222] SORT_22 var_382_arg_0 = input_23; [L1223] SORT_22 var_382_arg_1 = var_381; [L1224] SORT_3 var_382 = var_382_arg_0 == var_382_arg_1; [L1225] SORT_3 var_387_arg_0 = var_386; [L1226] SORT_3 var_387_arg_1 = var_382; [L1227] SORT_1 var_387 = ((SORT_1)var_387_arg_0 << 1) | var_387_arg_1; [L1228] var_387 = var_387 & mask_SORT_1 [L1229] SORT_3 var_388_arg_0 = var_198; [L1230] SORT_1 var_388_arg_1 = var_387; [L1231] SORT_15 var_388 = ((SORT_15)var_388_arg_0 << 2) | var_388_arg_1; [L1232] var_388 = var_388 & mask_SORT_15 [L1233] SORT_3 var_389_arg_0 = var_196; [L1234] SORT_15 var_389_arg_1 = var_388; [L1235] SORT_184 var_389 = ((SORT_184)var_389_arg_0 << 3) | var_389_arg_1; [L1236] var_389 = var_389 & mask_SORT_184 [L1237] SORT_3 var_390_arg_0 = var_194; [L1238] SORT_184 var_390_arg_1 = var_389; [L1239] SORT_22 var_390 = ((SORT_22)var_390_arg_0 << 4) | var_390_arg_1; [L1240] var_390 = var_390 & mask_SORT_22 [L1241] SORT_3 var_391_arg_0 = var_83; [L1242] SORT_22 var_391_arg_1 = var_390; [L1243] SORT_217 var_391 = ((SORT_217)var_391_arg_0 << 5) | var_391_arg_1; [L1244] var_391 = var_391 & mask_SORT_217 [L1245] SORT_217 var_392_arg_0 = var_391; [L1246] var_392_arg_0 ^= var_392_arg_0 >> 4 [L1247] var_392_arg_0 ^= var_392_arg_0 >> 2 [L1248] var_392_arg_0 ^= var_392_arg_0 >> 1 [L1249] SORT_3 var_392 = var_392_arg_0; [L1250] var_392 = var_392 & mask_SORT_3 [L1251] SORT_3 var_407_arg_0 = var_398; [L1252] SORT_3 var_407_arg_1 = var_392; [L1253] SORT_1 var_407 = ((SORT_1)var_407_arg_0 << 1) | var_407_arg_1; [L1254] var_407 = var_407 & mask_SORT_1 [L1255] SORT_3 var_408_arg_0 = var_402; [L1256] SORT_1 var_408_arg_1 = var_407; [L1257] SORT_15 var_408 = ((SORT_15)var_408_arg_0 << 2) | var_408_arg_1; [L1258] var_408 = var_408 & mask_SORT_15 [L1259] SORT_3 var_409_arg_0 = var_406; [L1260] SORT_15 var_409_arg_1 = var_408; [L1261] SORT_184 var_409 = ((SORT_184)var_409_arg_0 << 3) | var_409_arg_1; [L1262] var_409 = var_409 & mask_SORT_184 [L1263] SORT_184 var_453_arg_0 = var_409; [L1264] SORT_184 var_453_arg_1 = var_452; [L1265] SORT_3 var_453 = var_453_arg_0 == var_453_arg_1; [L1266] SORT_184 var_450_arg_0 = var_409; [L1267] SORT_184 var_450_arg_1 = var_449; [L1268] SORT_3 var_450 = var_450_arg_0 == var_450_arg_1; [L1269] SORT_3 var_454_arg_0 = var_453; [L1270] SORT_3 var_454_arg_1 = var_450; [L1271] SORT_3 var_454 = var_454_arg_0 | var_454_arg_1; [L1272] var_454 = var_454 & mask_SORT_3 [L1273] SORT_184 var_447_arg_0 = var_409; [L1274] SORT_184 var_447_arg_1 = var_446; [L1275] SORT_3 var_447 = var_447_arg_0 == var_447_arg_1; [L1276] SORT_184 var_457_arg_0 = var_409; [L1277] SORT_184 var_457_arg_1 = var_456; [L1278] SORT_3 var_457 = var_457_arg_0 == var_457_arg_1; [L1279] SORT_3 var_458_arg_0 = var_447; [L1280] SORT_3 var_458_arg_1 = var_457; [L1281] SORT_1 var_458 = ((SORT_1)var_458_arg_0 << 1) | var_458_arg_1; [L1282] var_458 = var_458 & mask_SORT_1 [L1283] SORT_3 var_459_arg_0 = var_454; [L1284] SORT_1 var_459_arg_1 = var_458; [L1285] SORT_15 var_459 = ((SORT_15)var_459_arg_0 << 2) | var_459_arg_1; [L1286] var_459 = var_459 & mask_SORT_15 [L1287] SORT_15 var_460_arg_0 = var_459; [L1288] SORT_3 var_460 = var_460_arg_0 != 0; [L1289] SORT_184 var_443_arg_0 = var_409; [L1290] SORT_184 var_443_arg_1 = var_442; [L1291] SORT_3 var_443 = var_443_arg_0 == var_443_arg_1; [L1292] SORT_184 var_440_arg_0 = var_409; [L1293] SORT_184 var_440_arg_1 = var_439; [L1294] SORT_3 var_440 = var_440_arg_0 == var_440_arg_1; [L1295] SORT_3 var_444_arg_0 = var_443; [L1296] SORT_3 var_444_arg_1 = var_440; [L1297] SORT_3 var_444 = var_444_arg_0 | var_444_arg_1; [L1298] var_444 = var_444 & mask_SORT_3 [L1299] SORT_184 var_437_arg_0 = var_409; [L1300] SORT_184 var_437_arg_1 = var_436; [L1301] SORT_3 var_437 = var_437_arg_0 == var_437_arg_1; [L1302] SORT_184 var_463_arg_0 = var_409; [L1303] SORT_184 var_463_arg_1 = var_462; [L1304] SORT_3 var_463 = var_463_arg_0 == var_463_arg_1; [L1305] SORT_3 var_464_arg_0 = var_437; [L1306] SORT_3 var_464_arg_1 = var_463; [L1307] SORT_1 var_464 = ((SORT_1)var_464_arg_0 << 1) | var_464_arg_1; [L1308] var_464 = var_464 & mask_SORT_1 [L1309] SORT_3 var_465_arg_0 = var_444; [L1310] SORT_1 var_465_arg_1 = var_464; [L1311] SORT_15 var_465 = ((SORT_15)var_465_arg_0 << 2) | var_465_arg_1; [L1312] var_465 = var_465 & mask_SORT_15 [L1313] SORT_3 var_466_arg_0 = var_460; [L1314] SORT_15 var_466_arg_1 = var_465; [L1315] SORT_184 var_466 = ((SORT_184)var_466_arg_0 << 3) | var_466_arg_1; [L1316] var_466 = var_466 & mask_SORT_184 [L1317] SORT_184 var_467_arg_0 = var_466; [L1318] SORT_3 var_467 = var_467_arg_0 != 0; [L1319] SORT_3 var_451_arg_0 = var_450; [L1320] SORT_3 var_451_arg_1 = var_135; [L1321] SORT_3 var_451_arg_2 = var_135; [L1322] EXPR var_451_arg_0 ? var_451_arg_1 : var_451_arg_2 [L1322] SORT_3 var_451 = var_451_arg_0 ? var_451_arg_1 : var_451_arg_2; [L1323] SORT_3 var_448_arg_0 = var_447; [L1324] SORT_3 var_448_arg_1 = var_135; [L1325] SORT_3 var_448_arg_2 = var_135; [L1326] EXPR var_448_arg_0 ? var_448_arg_1 : var_448_arg_2 [L1326] SORT_3 var_448 = var_448_arg_0 ? var_448_arg_1 : var_448_arg_2; [L1327] SORT_3 var_455_arg_0 = var_454; [L1328] SORT_3 var_455_arg_1 = var_451; [L1329] SORT_3 var_455_arg_2 = var_448; [L1330] EXPR var_455_arg_0 ? var_455_arg_1 : var_455_arg_2 [L1330] SORT_3 var_455 = var_455_arg_0 ? var_455_arg_1 : var_455_arg_2; [L1331] SORT_3 var_441_arg_0 = var_440; [L1332] SORT_3 var_441_arg_1 = var_42; [L1333] SORT_3 var_441_arg_2 = var_42; [L1334] EXPR var_441_arg_0 ? var_441_arg_1 : var_441_arg_2 [L1334] SORT_3 var_441 = var_441_arg_0 ? var_441_arg_1 : var_441_arg_2; [L1335] SORT_3 var_438_arg_0 = var_437; [L1336] SORT_3 var_438_arg_1 = var_42; [L1337] SORT_3 var_438_arg_2 = var_42; [L1338] EXPR var_438_arg_0 ? var_438_arg_1 : var_438_arg_2 [L1338] SORT_3 var_438 = var_438_arg_0 ? var_438_arg_1 : var_438_arg_2; [L1339] SORT_3 var_445_arg_0 = var_444; [L1340] SORT_3 var_445_arg_1 = var_441; [L1341] SORT_3 var_445_arg_2 = var_438; [L1342] EXPR var_445_arg_0 ? var_445_arg_1 : var_445_arg_2 [L1342] SORT_3 var_445 = var_445_arg_0 ? var_445_arg_1 : var_445_arg_2; [L1343] SORT_3 var_461_arg_0 = var_460; [L1344] SORT_3 var_461_arg_1 = var_455; [L1345] SORT_3 var_461_arg_2 = var_445; [L1346] EXPR var_461_arg_0 ? var_461_arg_1 : var_461_arg_2 [L1346] SORT_3 var_461 = var_461_arg_0 ? var_461_arg_1 : var_461_arg_2; [L1347] SORT_184 var_427_arg_0 = var_409; [L1348] SORT_184 var_427_arg_1 = var_426; [L1349] SORT_3 var_427 = var_427_arg_0 == var_427_arg_1; [L1350] SORT_184 var_424_arg_0 = var_409; [L1351] SORT_184 var_424_arg_1 = var_423; [L1352] SORT_3 var_424 = var_424_arg_0 == var_424_arg_1; [L1353] SORT_3 var_428_arg_0 = var_427; [L1354] SORT_3 var_428_arg_1 = var_424; [L1355] SORT_3 var_428 = var_428_arg_0 | var_428_arg_1; [L1356] var_428 = var_428 & mask_SORT_3 [L1357] SORT_184 var_421_arg_0 = var_409; [L1358] SORT_184 var_421_arg_1 = var_420; [L1359] SORT_3 var_421 = var_421_arg_0 == var_421_arg_1; [L1360] SORT_184 var_431_arg_0 = var_409; [L1361] SORT_184 var_431_arg_1 = var_430; [L1362] SORT_3 var_431 = var_431_arg_0 == var_431_arg_1; [L1363] SORT_3 var_432_arg_0 = var_421; [L1364] SORT_3 var_432_arg_1 = var_431; [L1365] SORT_1 var_432 = ((SORT_1)var_432_arg_0 << 1) | var_432_arg_1; [L1366] var_432 = var_432 & mask_SORT_1 [L1367] SORT_3 var_433_arg_0 = var_428; [L1368] SORT_1 var_433_arg_1 = var_432; [L1369] SORT_15 var_433 = ((SORT_15)var_433_arg_0 << 2) | var_433_arg_1; [L1370] var_433 = var_433 & mask_SORT_15 [L1371] SORT_15 var_434_arg_0 = var_433; [L1372] SORT_3 var_434 = var_434_arg_0 != 0; [L1373] SORT_3 var_425_arg_0 = var_424; [L1374] SORT_3 var_425_arg_1 = var_42; [L1375] SORT_3 var_425_arg_2 = var_42; [L1376] EXPR var_425_arg_0 ? var_425_arg_1 : var_425_arg_2 [L1376] SORT_3 var_425 = var_425_arg_0 ? var_425_arg_1 : var_425_arg_2; [L1377] SORT_3 var_422_arg_0 = var_421; [L1378] SORT_3 var_422_arg_1 = var_42; [L1379] SORT_3 var_422_arg_2 = var_42; [L1380] EXPR var_422_arg_0 ? var_422_arg_1 : var_422_arg_2 [L1380] SORT_3 var_422 = var_422_arg_0 ? var_422_arg_1 : var_422_arg_2; [L1381] SORT_3 var_429_arg_0 = var_428; [L1382] SORT_3 var_429_arg_1 = var_425; [L1383] SORT_3 var_429_arg_2 = var_422; [L1384] EXPR var_429_arg_0 ? var_429_arg_1 : var_429_arg_2 [L1384] SORT_3 var_429 = var_429_arg_0 ? var_429_arg_1 : var_429_arg_2; [L1385] SORT_184 var_417_arg_0 = var_409; [L1386] SORT_184 var_417_arg_1 = var_416; [L1387] SORT_3 var_417 = var_417_arg_0 == var_417_arg_1; [L1388] SORT_184 var_414_arg_0 = var_409; [L1389] SORT_184 var_414_arg_1 = var_413; [L1390] SORT_3 var_414 = var_414_arg_0 == var_414_arg_1; [L1391] SORT_3 var_418_arg_0 = var_417; [L1392] SORT_3 var_418_arg_1 = var_414; [L1393] SORT_3 var_418 = var_418_arg_0 | var_418_arg_1; [L1394] var_418 = var_418 & mask_SORT_3 [L1395] SORT_3 var_415_arg_0 = var_414; [L1396] SORT_3 var_415_arg_1 = var_42; [L1397] SORT_3 var_415_arg_2 = var_42; [L1398] EXPR var_415_arg_0 ? var_415_arg_1 : var_415_arg_2 [L1398] SORT_3 var_415 = var_415_arg_0 ? var_415_arg_1 : var_415_arg_2; [L1399] SORT_184 var_411_arg_0 = var_409; [L1400] SORT_184 var_411_arg_1 = var_410; [L1401] SORT_3 var_411 = var_411_arg_0 == var_411_arg_1; [L1402] SORT_3 var_412_arg_0 = var_411; [L1403] SORT_3 var_412_arg_1 = var_42; [L1404] SORT_3 var_412_arg_2 = var_135; [L1405] EXPR var_412_arg_0 ? var_412_arg_1 : var_412_arg_2 [L1405] SORT_3 var_412 = var_412_arg_0 ? var_412_arg_1 : var_412_arg_2; [L1406] SORT_3 var_419_arg_0 = var_418; [L1407] SORT_3 var_419_arg_1 = var_415; [L1408] SORT_3 var_419_arg_2 = var_412; [L1409] EXPR var_419_arg_0 ? var_419_arg_1 : var_419_arg_2 [L1409] SORT_3 var_419 = var_419_arg_0 ? var_419_arg_1 : var_419_arg_2; [L1410] SORT_3 var_435_arg_0 = var_434; [L1411] SORT_3 var_435_arg_1 = var_429; [L1412] SORT_3 var_435_arg_2 = var_419; [L1413] EXPR var_435_arg_0 ? var_435_arg_1 : var_435_arg_2 [L1413] SORT_3 var_435 = var_435_arg_0 ? var_435_arg_1 : var_435_arg_2; [L1414] SORT_3 var_468_arg_0 = var_467; [L1415] SORT_3 var_468_arg_1 = var_461; [L1416] SORT_3 var_468_arg_2 = var_435; [L1417] EXPR var_468_arg_0 ? var_468_arg_1 : var_468_arg_2 [L1417] SORT_3 var_468 = var_468_arg_0 ? var_468_arg_1 : var_468_arg_2; [L1418] SORT_3 var_384_arg_0 = var_383; [L1419] SORT_3 var_384_arg_1 = var_382; [L1420] SORT_1 var_384 = ((SORT_1)var_384_arg_0 << 1) | var_384_arg_1; [L1421] var_384 = var_384 & mask_SORT_1 [L1422] SORT_1 var_385_arg_0 = var_384; [L1423] SORT_3 var_385 = var_385_arg_0 != 0; [L1424] SORT_3 var_469_arg_0 = var_386; [L1425] SORT_3 var_469_arg_1 = var_385; [L1426] SORT_1 var_469 = ((SORT_1)var_469_arg_0 << 1) | var_469_arg_1; [L1427] var_469 = var_469 & mask_SORT_1 [L1428] SORT_3 var_470_arg_0 = var_468; [L1429] SORT_1 var_470_arg_1 = var_469; [L1430] SORT_15 var_470 = ((SORT_15)var_470_arg_0 << 2) | var_470_arg_1; [L1431] var_470 = var_470 & mask_SORT_15 [L1432] SORT_15 var_471_arg_0 = var_470; [L1433] SORT_3 var_471 = var_471_arg_0 != 0; [L1434] SORT_3 var_474_arg_0 = var_473; [L1435] SORT_3 var_474_arg_1 = var_471; [L1436] SORT_1 var_474 = ((SORT_1)var_474_arg_0 << 1) | var_474_arg_1; [L1437] var_474 = var_474 & mask_SORT_1 [L1438] SORT_1 var_475_arg_0 = var_474; [L1439] SORT_3 var_475 = var_475_arg_0 != 0; [L1440] SORT_3 var_478_arg_0 = var_477; [L1441] SORT_3 var_478_arg_1 = var_475; [L1442] SORT_1 var_478 = ((SORT_1)var_478_arg_0 << 1) | var_478_arg_1; [L1443] var_478 = var_478 & mask_SORT_1 [L1444] SORT_1 var_479_arg_0 = var_478; [L1445] SORT_3 var_479 = var_479_arg_0 != 0; [L1446] SORT_3 var_482_arg_0 = var_481; [L1447] SORT_3 var_482_arg_1 = var_479; [L1448] SORT_1 var_482 = ((SORT_1)var_482_arg_0 << 1) | var_482_arg_1; [L1449] var_482 = var_482 & mask_SORT_1 [L1450] SORT_1 var_483_arg_0 = var_482; [L1451] SORT_3 var_483 = var_483_arg_0 != 0; [L1452] SORT_3 var_489_arg_0 = var_481; [L1453] SORT_3 var_489_arg_1 = var_483; [L1454] SORT_1 var_489 = ((SORT_1)var_489_arg_0 << 1) | var_489_arg_1; [L1455] var_489 = var_489 & mask_SORT_1 [L1456] SORT_3 var_491_arg_0 = var_490; [L1457] SORT_1 var_491_arg_1 = var_489; [L1458] SORT_15 var_491 = ((SORT_15)var_491_arg_0 << 2) | var_491_arg_1; [L1459] var_491 = var_491 & mask_SORT_15 [L1460] SORT_3 var_492_arg_0 = var_376; [L1461] SORT_15 var_492_arg_1 = var_491; [L1462] SORT_184 var_492 = ((SORT_184)var_492_arg_0 << 3) | var_492_arg_1; [L1463] var_492 = var_492 & mask_SORT_184 [L1464] SORT_184 var_493_arg_0 = var_492; [L1465] SORT_3 var_493 = var_493_arg_0 == mask_SORT_184; [L1466] SORT_7 var_485_arg_0 = var_129; [L1467] SORT_3 var_485 = var_485_arg_0 >> 31; [L1468] SORT_3 var_484_arg_0 = var_481; [L1469] SORT_3 var_484_arg_1 = var_483; [L1470] SORT_1 var_484 = ((SORT_1)var_484_arg_0 << 1) | var_484_arg_1; [L1471] var_484 = var_484 & mask_SORT_1 [L1472] SORT_3 var_486_arg_0 = var_485; [L1473] SORT_1 var_486_arg_1 = var_484; [L1474] SORT_15 var_486 = ((SORT_15)var_486_arg_0 << 2) | var_486_arg_1; [L1475] var_486 = var_486 & mask_SORT_15 [L1476] SORT_3 var_487_arg_0 = var_371; [L1477] SORT_15 var_487_arg_1 = var_486; [L1478] SORT_184 var_487 = ((SORT_184)var_487_arg_0 << 3) | var_487_arg_1; [L1479] var_487 = var_487 & mask_SORT_184 [L1480] SORT_184 var_488_arg_0 = var_487; [L1481] SORT_3 var_488 = var_488_arg_0 == mask_SORT_184; [L1482] SORT_7 var_377_arg_0 = var_129; [L1483] SORT_3 var_377 = var_377_arg_0 >> 0; [L1484] SORT_3 var_84_arg_0 = var_83; [L1485] SORT_3 var_84_arg_1 = var_81; [L1486] SORT_1 var_84 = ((SORT_1)var_84_arg_0 << 1) | var_84_arg_1; [L1487] var_84 = var_84 & mask_SORT_1 [L1488] SORT_1 var_85_arg_0 = var_84; [L1489] SORT_3 var_85 = var_85_arg_0 != 0; [L1490] SORT_3 var_378_arg_0 = var_377; [L1491] SORT_3 var_378_arg_1 = var_85; [L1492] SORT_1 var_378 = ((SORT_1)var_378_arg_0 << 1) | var_378_arg_1; [L1493] var_378 = var_378 & mask_SORT_1 [L1494] SORT_3 var_379_arg_0 = var_376; [L1495] SORT_1 var_379_arg_1 = var_378; [L1496] SORT_15 var_379 = ((SORT_15)var_379_arg_0 << 2) | var_379_arg_1; [L1497] var_379 = var_379 & mask_SORT_15 [L1498] SORT_15 var_380_arg_0 = var_379; [L1499] SORT_3 var_380 = var_380_arg_0 == mask_SORT_15; [L1500] SORT_7 var_372_arg_0 = var_129; [L1501] SORT_3 var_372 = var_372_arg_0 >> 16; [L1502] SORT_3 var_373_arg_0 = var_372; [L1503] SORT_3 var_373_arg_1 = var_85; [L1504] SORT_1 var_373 = ((SORT_1)var_373_arg_0 << 1) | var_373_arg_1; [L1505] var_373 = var_373 & mask_SORT_1 [L1506] SORT_3 var_374_arg_0 = var_371; [L1507] SORT_1 var_374_arg_1 = var_373; [L1508] SORT_15 var_374 = ((SORT_15)var_374_arg_0 << 2) | var_374_arg_1; [L1509] var_374 = var_374 & mask_SORT_15 [L1510] SORT_15 var_375_arg_0 = var_374; [L1511] SORT_3 var_375 = var_375_arg_0 == mask_SORT_15; [L1512] SORT_3 var_494_arg_0 = var_380; [L1513] SORT_3 var_494_arg_1 = var_375; [L1514] SORT_1 var_494 = ((SORT_1)var_494_arg_0 << 1) | var_494_arg_1; [L1515] var_494 = var_494 & mask_SORT_1 [L1516] SORT_3 var_495_arg_0 = var_488; [L1517] SORT_1 var_495_arg_1 = var_494; [L1518] SORT_15 var_495 = ((SORT_15)var_495_arg_0 << 2) | var_495_arg_1; [L1519] var_495 = var_495 & mask_SORT_15 [L1520] SORT_3 var_496_arg_0 = var_493; [L1521] SORT_15 var_496_arg_1 = var_495; [L1522] SORT_184 var_496 = ((SORT_184)var_496_arg_0 << 3) | var_496_arg_1; [L1523] var_496 = var_496 & mask_SORT_184 [L1524] SORT_184 var_497_arg_0 = var_496; [L1525] SORT_3 var_497 = var_497_arg_0 != 0; [L1526] SORT_3 var_500_arg_0 = var_499; [L1527] SORT_3 var_500_arg_1 = var_497; [L1528] SORT_1 var_500 = ((SORT_1)var_500_arg_0 << 1) | var_500_arg_1; [L1529] var_500 = var_500 & mask_SORT_1 [L1530] SORT_1 var_501_arg_0 = var_500; [L1531] SORT_3 var_501 = var_501_arg_0 == mask_SORT_1; [L1532] SORT_1 var_75_arg_0 = input_2; [L1533] SORT_1 var_75_arg_1 = var_74; [L1534] SORT_3 var_75 = var_75_arg_0 == var_75_arg_1; [L1535] SORT_3 var_54_arg_0 = state_52; [L1536] SORT_5 var_54_arg_1 = state_50; [L1537] SORT_5 var_54_arg_2 = input_30; [L1538] EXPR var_54_arg_0 ? var_54_arg_1 : var_54_arg_2 [L1538] SORT_5 var_54 = var_54_arg_0 ? var_54_arg_1 : var_54_arg_2; [L1539] SORT_3 var_60_arg_0 = var_59; [L1540] SORT_5 var_60_arg_1 = var_54; [L1541] SORT_5 var_60_arg_2 = var_49; [L1542] EXPR var_60_arg_0 ? var_60_arg_1 : var_60_arg_2 [L1542] SORT_5 var_60 = var_60_arg_0 ? var_60_arg_1 : var_60_arg_2; [L1543] SORT_3 var_62_arg_0 = var_61; [L1544] SORT_5 var_62_arg_1 = var_49; [L1545] SORT_5 var_62_arg_2 = var_60; [L1546] EXPR var_62_arg_0 ? var_62_arg_1 : var_62_arg_2 [L1546] SORT_5 var_62 = var_62_arg_0 ? var_62_arg_1 : var_62_arg_2; [L1547] SORT_3 var_63_arg_0 = input_13; [L1548] SORT_5 var_63_arg_1 = input_6; [L1549] SORT_5 var_63_arg_2 = var_62; [L1550] EXPR var_63_arg_0 ? var_63_arg_1 : var_63_arg_2 [L1550] SORT_5 var_63 = var_63_arg_0 ? var_63_arg_1 : var_63_arg_2; [L1551] var_63 = var_63 & mask_SORT_5 [L1552] SORT_3 var_68_arg_0 = state_52; [L1553] SORT_15 var_68_arg_1 = state_66; [L1554] SORT_15 var_68_arg_2 = input_26; [L1555] EXPR var_68_arg_0 ? var_68_arg_1 : var_68_arg_2 [L1555] SORT_15 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L1556] SORT_3 var_69_arg_0 = var_59; [L1557] SORT_15 var_69_arg_1 = var_68; [L1558] SORT_15 var_69_arg_2 = var_65; [L1559] EXPR var_69_arg_0 ? var_69_arg_1 : var_69_arg_2 [L1559] SORT_15 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L1560] SORT_3 var_70_arg_0 = var_61; [L1561] SORT_15 var_70_arg_1 = var_65; [L1562] SORT_15 var_70_arg_2 = var_69; [L1563] EXPR var_70_arg_0 ? var_70_arg_1 : var_70_arg_2 [L1563] SORT_15 var_70 = var_70_arg_0 ? var_70_arg_1 : var_70_arg_2; [L1564] SORT_15 var_71_arg_0 = var_64; [L1565] SORT_15 var_71_arg_1 = var_70; [L1566] SORT_15 var_71 = var_71_arg_0 - var_71_arg_1; [L1567] SORT_15 var_72_arg_0 = var_71; [L1568] var_72_arg_0 = var_72_arg_0 & mask_SORT_15 [L1569] SORT_5 var_72 = var_72_arg_0; [L1570] SORT_5 var_73_arg_0 = var_63; [L1571] SORT_5 var_73_arg_1 = var_72; [L1572] SORT_5 var_73 = var_73_arg_0 >> var_73_arg_1; [L1573] SORT_5 var_76_arg_0 = var_73; [L1574] SORT_3 var_76 = var_76_arg_0 >> 0; [L1575] SORT_3 var_48_arg_0 = var_47; [L1576] SORT_3 var_48 = ~var_48_arg_0; [L1577] var_48 = var_48 & mask_SORT_3 [L1578] SORT_3 var_77_arg_0 = var_76; [L1579] SORT_3 var_77_arg_1 = var_48; [L1580] SORT_1 var_77 = ((SORT_1)var_77_arg_0 << 1) | var_77_arg_1; [L1581] var_77 = var_77 & mask_SORT_1 [L1582] SORT_3 var_78_arg_0 = var_75; [L1583] SORT_1 var_78_arg_1 = var_77; [L1584] SORT_15 var_78 = ((SORT_15)var_78_arg_0 << 2) | var_78_arg_1; [L1585] var_78 = var_78 & mask_SORT_15 [L1586] SORT_15 var_79_arg_0 = var_78; [L1587] SORT_3 var_79 = var_79_arg_0 == mask_SORT_15; [L1588] SORT_3 var_502_arg_0 = var_501; [L1589] SORT_3 var_502_arg_1 = var_79; [L1590] SORT_1 var_502 = ((SORT_1)var_502_arg_0 << 1) | var_502_arg_1; [L1591] var_502 = var_502 & mask_SORT_1 [L1592] SORT_1 var_503_arg_0 = var_502; [L1593] SORT_3 var_503 = var_503_arg_0 != 0; [L1594] SORT_3 var_521_arg_0 = var_520; [L1595] SORT_3 var_521_arg_1 = var_503; [L1596] SORT_1 var_521 = ((SORT_1)var_521_arg_0 << 1) | var_521_arg_1; [L1597] var_521 = var_521 & mask_SORT_1 [L1598] SORT_1 var_522_arg_0 = var_521; [L1599] SORT_3 var_522 = var_522_arg_0 == mask_SORT_1; [L1600] SORT_3 var_543_arg_0 = state_52; [L1601] SORT_7 var_543_arg_1 = state_541; [L1602] SORT_7 var_543_arg_2 = input_25; [L1603] EXPR var_543_arg_0 ? var_543_arg_1 : var_543_arg_2 [L1603] SORT_7 var_543 = var_543_arg_0 ? var_543_arg_1 : var_543_arg_2; [L1604] SORT_3 var_544_arg_0 = var_59; [L1605] SORT_7 var_544_arg_1 = var_543; [L1606] SORT_7 var_544_arg_2 = var_86; [L1607] EXPR var_544_arg_0 ? var_544_arg_1 : var_544_arg_2 [L1607] SORT_7 var_544 = var_544_arg_0 ? var_544_arg_1 : var_544_arg_2; [L1608] SORT_3 var_545_arg_0 = var_61; [L1609] SORT_7 var_545_arg_1 = var_86; [L1610] SORT_7 var_545_arg_2 = var_544; [L1611] EXPR var_545_arg_0 ? var_545_arg_1 : var_545_arg_2 [L1611] SORT_7 var_545 = var_545_arg_0 ? var_545_arg_1 : var_545_arg_2; [L1612] SORT_3 var_546_arg_0 = var_115; [L1613] SORT_7 var_546_arg_1 = var_545; [L1614] SORT_7 var_546_arg_2 = var_86; [L1615] EXPR var_546_arg_0 ? var_546_arg_1 : var_546_arg_2 [L1615] SORT_7 var_546 = var_546_arg_0 ? var_546_arg_1 : var_546_arg_2; [L1616] SORT_3 var_547_arg_0 = var_128; [L1617] SORT_7 var_547_arg_1 = input_8; [L1618] SORT_7 var_547_arg_2 = var_546; [L1619] EXPR var_547_arg_0 ? var_547_arg_1 : var_547_arg_2 [L1619] SORT_7 var_547 = var_547_arg_0 ? var_547_arg_1 : var_547_arg_2; [L1620] SORT_7 var_562_arg_0 = var_547; [L1621] SORT_3 var_562 = var_562_arg_0 >> 15; [L1622] SORT_3 var_561_arg_0 = var_481; [L1623] SORT_3 var_561_arg_1 = var_483; [L1624] SORT_1 var_561 = ((SORT_1)var_561_arg_0 << 1) | var_561_arg_1; [L1625] var_561 = var_561 & mask_SORT_1 [L1626] SORT_3 var_563_arg_0 = var_562; [L1627] SORT_1 var_563_arg_1 = var_561; [L1628] SORT_15 var_563 = ((SORT_15)var_563_arg_0 << 2) | var_563_arg_1; [L1629] var_563 = var_563 & mask_SORT_15 [L1630] SORT_3 var_564_arg_0 = var_376; [L1631] SORT_15 var_564_arg_1 = var_563; [L1632] SORT_184 var_564 = ((SORT_184)var_564_arg_0 << 3) | var_564_arg_1; [L1633] var_564 = var_564 & mask_SORT_184 [L1634] SORT_184 var_565_arg_0 = var_564; [L1635] SORT_3 var_565 = var_565_arg_0 == mask_SORT_184; [L1636] SORT_7 var_557_arg_0 = var_547; [L1637] SORT_3 var_557 = var_557_arg_0 >> 31; [L1638] SORT_3 var_556_arg_0 = var_481; [L1639] SORT_3 var_556_arg_1 = var_483; [L1640] SORT_1 var_556 = ((SORT_1)var_556_arg_0 << 1) | var_556_arg_1; [L1641] var_556 = var_556 & mask_SORT_1 [L1642] SORT_3 var_558_arg_0 = var_557; [L1643] SORT_1 var_558_arg_1 = var_556; [L1644] SORT_15 var_558 = ((SORT_15)var_558_arg_0 << 2) | var_558_arg_1; [L1645] var_558 = var_558 & mask_SORT_15 [L1646] SORT_3 var_559_arg_0 = var_371; [L1647] SORT_15 var_559_arg_1 = var_558; [L1648] SORT_184 var_559 = ((SORT_184)var_559_arg_0 << 3) | var_559_arg_1; [L1649] var_559 = var_559 & mask_SORT_184 [L1650] SORT_184 var_560_arg_0 = var_559; [L1651] SORT_3 var_560 = var_560_arg_0 == mask_SORT_184; [L1652] SORT_7 var_552_arg_0 = var_547; [L1653] SORT_3 var_552 = var_552_arg_0 >> 0; [L1654] SORT_3 var_553_arg_0 = var_552; [L1655] SORT_3 var_553_arg_1 = var_85; [L1656] SORT_1 var_553 = ((SORT_1)var_553_arg_0 << 1) | var_553_arg_1; [L1657] var_553 = var_553 & mask_SORT_1 [L1658] SORT_3 var_554_arg_0 = var_376; [L1659] SORT_1 var_554_arg_1 = var_553; [L1660] SORT_15 var_554 = ((SORT_15)var_554_arg_0 << 2) | var_554_arg_1; [L1661] var_554 = var_554 & mask_SORT_15 [L1662] SORT_15 var_555_arg_0 = var_554; [L1663] SORT_3 var_555 = var_555_arg_0 == mask_SORT_15; [L1664] SORT_7 var_548_arg_0 = var_547; [L1665] SORT_3 var_548 = var_548_arg_0 >> 16; [L1666] SORT_3 var_549_arg_0 = var_548; [L1667] SORT_3 var_549_arg_1 = var_85; [L1668] SORT_1 var_549 = ((SORT_1)var_549_arg_0 << 1) | var_549_arg_1; [L1669] var_549 = var_549 & mask_SORT_1 [L1670] SORT_3 var_550_arg_0 = var_371; [L1671] SORT_1 var_550_arg_1 = var_549; [L1672] SORT_15 var_550 = ((SORT_15)var_550_arg_0 << 2) | var_550_arg_1; [L1673] var_550 = var_550 & mask_SORT_15 [L1674] SORT_15 var_551_arg_0 = var_550; [L1675] SORT_3 var_551 = var_551_arg_0 == mask_SORT_15; [L1676] SORT_3 var_566_arg_0 = var_555; [L1677] SORT_3 var_566_arg_1 = var_551; [L1678] SORT_1 var_566 = ((SORT_1)var_566_arg_0 << 1) | var_566_arg_1; [L1679] var_566 = var_566 & mask_SORT_1 [L1680] SORT_3 var_567_arg_0 = var_560; [L1681] SORT_1 var_567_arg_1 = var_566; [L1682] SORT_15 var_567 = ((SORT_15)var_567_arg_0 << 2) | var_567_arg_1; [L1683] var_567 = var_567 & mask_SORT_15 [L1684] SORT_3 var_568_arg_0 = var_565; [L1685] SORT_15 var_568_arg_1 = var_567; [L1686] SORT_184 var_568 = ((SORT_184)var_568_arg_0 << 3) | var_568_arg_1; [L1687] var_568 = var_568 & mask_SORT_184 [L1688] SORT_184 var_569_arg_0 = var_568; [L1689] SORT_3 var_569 = var_569_arg_0 != 0; [L1690] SORT_3 var_570_arg_0 = var_499; [L1691] SORT_3 var_570_arg_1 = var_569; [L1692] SORT_1 var_570 = ((SORT_1)var_570_arg_0 << 1) | var_570_arg_1; [L1693] var_570 = var_570 & mask_SORT_1 [L1694] SORT_1 var_571_arg_0 = var_570; [L1695] SORT_3 var_571 = var_571_arg_0 == mask_SORT_1; [L1696] SORT_3 var_525_arg_0 = state_52; [L1697] SORT_5 var_525_arg_1 = state_523; [L1698] SORT_5 var_525_arg_2 = input_30; [L1699] EXPR var_525_arg_0 ? var_525_arg_1 : var_525_arg_2 [L1699] SORT_5 var_525 = var_525_arg_0 ? var_525_arg_1 : var_525_arg_2; [L1700] SORT_3 var_526_arg_0 = var_59; [L1701] SORT_5 var_526_arg_1 = var_525; [L1702] SORT_5 var_526_arg_2 = var_49; [L1703] EXPR var_526_arg_0 ? var_526_arg_1 : var_526_arg_2 [L1703] SORT_5 var_526 = var_526_arg_0 ? var_526_arg_1 : var_526_arg_2; [L1704] SORT_3 var_527_arg_0 = var_61; [L1705] SORT_5 var_527_arg_1 = var_49; [L1706] SORT_5 var_527_arg_2 = var_526; [L1707] EXPR var_527_arg_0 ? var_527_arg_1 : var_527_arg_2 [L1707] SORT_5 var_527 = var_527_arg_0 ? var_527_arg_1 : var_527_arg_2; [L1708] SORT_3 var_528_arg_0 = input_13; [L1709] SORT_5 var_528_arg_1 = input_6; [L1710] SORT_5 var_528_arg_2 = var_527; [L1711] EXPR var_528_arg_0 ? var_528_arg_1 : var_528_arg_2 [L1711] SORT_5 var_528 = var_528_arg_0 ? var_528_arg_1 : var_528_arg_2; [L1712] var_528 = var_528 & mask_SORT_5 [L1713] SORT_3 var_531_arg_0 = state_52; [L1714] SORT_15 var_531_arg_1 = state_529; [L1715] SORT_15 var_531_arg_2 = input_26; [L1716] EXPR var_531_arg_0 ? var_531_arg_1 : var_531_arg_2 [L1716] SORT_15 var_531 = var_531_arg_0 ? var_531_arg_1 : var_531_arg_2; [L1717] SORT_3 var_532_arg_0 = var_59; [L1718] SORT_15 var_532_arg_1 = var_531; [L1719] SORT_15 var_532_arg_2 = var_65; [L1720] EXPR var_532_arg_0 ? var_532_arg_1 : var_532_arg_2 [L1720] SORT_15 var_532 = var_532_arg_0 ? var_532_arg_1 : var_532_arg_2; [L1721] SORT_3 var_533_arg_0 = var_61; [L1722] SORT_15 var_533_arg_1 = var_65; [L1723] SORT_15 var_533_arg_2 = var_532; [L1724] EXPR var_533_arg_0 ? var_533_arg_1 : var_533_arg_2 [L1724] SORT_15 var_533 = var_533_arg_0 ? var_533_arg_1 : var_533_arg_2; [L1725] SORT_15 var_534_arg_0 = var_64; [L1726] SORT_15 var_534_arg_1 = var_533; [L1727] SORT_15 var_534 = var_534_arg_0 - var_534_arg_1; [L1728] SORT_15 var_535_arg_0 = var_534; [L1729] var_535_arg_0 = var_535_arg_0 & mask_SORT_15 [L1730] SORT_5 var_535 = var_535_arg_0; [L1731] SORT_5 var_536_arg_0 = var_528; [L1732] SORT_5 var_536_arg_1 = var_535; [L1733] SORT_5 var_536 = var_536_arg_0 >> var_536_arg_1; [L1734] SORT_5 var_537_arg_0 = var_536; [L1735] SORT_3 var_537 = var_537_arg_0 >> 0; [L1736] SORT_3 var_538_arg_0 = var_537; [L1737] SORT_3 var_538_arg_1 = var_48; [L1738] SORT_1 var_538 = ((SORT_1)var_538_arg_0 << 1) | var_538_arg_1; [L1739] var_538 = var_538 & mask_SORT_1 [L1740] SORT_3 var_539_arg_0 = var_75; [L1741] SORT_1 var_539_arg_1 = var_538; [L1742] SORT_15 var_539 = ((SORT_15)var_539_arg_0 << 2) | var_539_arg_1; [L1743] var_539 = var_539 & mask_SORT_15 [L1744] SORT_15 var_540_arg_0 = var_539; [L1745] SORT_3 var_540 = var_540_arg_0 == mask_SORT_15; [L1746] SORT_3 var_572_arg_0 = var_571; [L1747] SORT_3 var_572_arg_1 = var_540; [L1748] SORT_1 var_572 = ((SORT_1)var_572_arg_0 << 1) | var_572_arg_1; [L1749] var_572 = var_572 & mask_SORT_1 [L1750] SORT_1 var_573_arg_0 = var_572; [L1751] SORT_3 var_573 = var_573_arg_0 != 0; [L1752] SORT_3 var_574_arg_0 = var_520; [L1753] SORT_3 var_574_arg_1 = var_573; [L1754] SORT_1 var_574 = ((SORT_1)var_574_arg_0 << 1) | var_574_arg_1; [L1755] var_574 = var_574 & mask_SORT_1 [L1756] SORT_1 var_575_arg_0 = var_574; [L1757] SORT_3 var_575 = var_575_arg_0 == mask_SORT_1; [L1758] SORT_3 var_576_arg_0 = var_522; [L1759] SORT_3 var_576_arg_1 = var_575; [L1760] SORT_3 var_576 = var_576_arg_0 == var_576_arg_1; [L1761] SORT_3 var_577_arg_0 = var_45; [L1762] SORT_3 var_577_arg_1 = var_576; [L1763] SORT_3 var_577 = var_577_arg_0 | var_577_arg_1; [L1764] SORT_3 var_580_arg_0 = var_577; [L1765] SORT_3 var_580 = ~var_580_arg_0; [L1766] SORT_3 var_581_arg_0 = var_135; [L1767] SORT_3 var_581_arg_1 = var_580; [L1768] SORT_3 var_581 = var_581_arg_0 & var_581_arg_1; [L1769] var_581 = var_581 & mask_SORT_3 [L1770] SORT_3 bad_582_arg_0 = var_581; [L1771] CALL __VERIFIER_assert(!(bad_582_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: 393.0s, 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, 197.2s 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 03:39:18,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/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_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/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_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/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_94218c02-56bb-4852-8a69-d37bd5dd5261/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 6b677157534212a257c6ebaef6ec570381f64f6b0290322b8f05d512f722854d --- 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 03:39:20,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:39:20,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:39:20,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:39:20,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:39:20,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:39:20,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:39:20,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:39:20,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:39:20,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:39:20,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:39:20,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:39:20,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:39:20,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:39:20,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:39:20,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:39:20,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:39:20,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:39:20,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:39:20,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:39:20,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:39:20,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:39:20,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:39:20,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:39:20,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:39:20,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:39:20,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:39:20,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:39:20,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:39:20,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:39:20,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:39:20,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:39:20,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:39:20,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:39:20,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:39:20,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:39:20,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:39:20,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:39:20,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:39:20,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:39:20,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:39:20,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 03:39:20,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:39:20,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:39:20,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:39:20,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:39:20,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:39:20,896 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:39:20,896 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:39:20,896 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:39:20,897 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:39:20,897 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:39:20,898 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:39:20,898 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:39:20,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:39:20,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:39:20,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:39:20,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:39:20,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:39:20,901 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 03:39:20,901 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 03:39:20,901 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 03:39:20,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:39:20,901 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:39:20,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:39:20,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:39:20,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 03:39:20,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:39:20,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:39:20,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:39:20,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:39:20,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:39:20,903 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 03:39:20,904 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 03:39:20,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:39:20,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:39:20,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 03:39:20,905 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_94218c02-56bb-4852-8a69-d37bd5dd5261/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b677157534212a257c6ebaef6ec570381f64f6b0290322b8f05d512f722854d [2022-11-03 03:39:21,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:39:21,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:39:21,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:39:21,336 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:39:21,337 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:39:21,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c [2022-11-03 03:39:21,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/data/51f4d33a1/a4e81b81172643508b1cbd9ec959ded3/FLAG1178c566b [2022-11-03 03:39:22,087 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:39:22,099 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c [2022-11-03 03:39:22,124 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/data/51f4d33a1/a4e81b81172643508b1cbd9ec959ded3/FLAG1178c566b [2022-11-03 03:39:22,270 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/data/51f4d33a1/a4e81b81172643508b1cbd9ec959ded3 [2022-11-03 03:39:22,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:39:22,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:39:22,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:39:22,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:39:22,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:39:22,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:39:22" (1/1) ... [2022-11-03 03:39:22,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1e5bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:22, skipping insertion in model container [2022-11-03 03:39:22,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:39:22" (1/1) ... [2022-11-03 03:39:22,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:39:22,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:39:22,516 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_94218c02-56bb-4852-8a69-d37bd5dd5261/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c[1107,1120] [2022-11-03 03:39:23,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:39:23,055 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:39:23,065 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_94218c02-56bb-4852-8a69-d37bd5dd5261/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal5.c[1107,1120] [2022-11-03 03:39:23,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:39:23,289 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:39:23,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23 WrapperNode [2022-11-03 03:39:23,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:39:23,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:39:23,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:39:23,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:39:23,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (1/1) ... [2022-11-03 03:39:23,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (1/1) ... [2022-11-03 03:39:23,545 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3072 [2022-11-03 03:39:23,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:39:23,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:39:23,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:39:23,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:39:23,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (1/1) ... [2022-11-03 03:39:23,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (1/1) ... [2022-11-03 03:39:23,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (1/1) ... [2022-11-03 03:39:23,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (1/1) ... [2022-11-03 03:39:23,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (1/1) ... [2022-11-03 03:39:23,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (1/1) ... [2022-11-03 03:39:23,719 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (1/1) ... [2022-11-03 03:39:23,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (1/1) ... [2022-11-03 03:39:23,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:39:23,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:39:23,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:39:23,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:39:23,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (1/1) ... [2022-11-03 03:39:23,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:39:23,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:39:23,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:39:23,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:39:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:39:23,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:39:24,467 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:39:24,469 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:39:26,710 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:39:26,732 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:39:26,732 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:39:26,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:39:26 BoogieIcfgContainer [2022-11-03 03:39:26,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:39:26,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:39:26,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:39:26,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:39:26,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:39:22" (1/3) ... [2022-11-03 03:39:26,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fa7d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:39:26, skipping insertion in model container [2022-11-03 03:39:26,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:39:23" (2/3) ... [2022-11-03 03:39:26,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fa7d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:39:26, skipping insertion in model container [2022-11-03 03:39:26,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:39:26" (3/3) ... [2022-11-03 03:39:26,745 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal5.c [2022-11-03 03:39:26,765 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:39:26,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:39:26,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:39:26,895 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;@20f737a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:39:26,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:39:26,903 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 03:39:26,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:26,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:26,929 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 03:39:26,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:26,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:26,935 INFO L85 PathProgramCache]: Analyzing trace with hash -758802309, now seen corresponding path program 1 times [2022-11-03 03:39:26,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:26,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811393240] [2022-11-03 03:39:26,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:26,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:26,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:26,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:26,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 03:39:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:28,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:39:28,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:28,541 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 03:39:28,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:28,542 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:28,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811393240] [2022-11-03 03:39:28,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811393240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:28,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:28,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:28,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071951478] [2022-11-03 03:39:28,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:28,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:28,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:28,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:28,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:28,588 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 03:39:29,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:29,043 INFO L93 Difference]: Finished difference Result 1370 states and 2053 transitions. [2022-11-03 03:39:29,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:29,048 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 03:39:29,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:29,075 INFO L225 Difference]: With dead ends: 1370 [2022-11-03 03:39:29,075 INFO L226 Difference]: Without dead ends: 1025 [2022-11-03 03:39:29,083 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 03:39:29,087 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 03:39:29,089 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 03:39:29,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-11-03 03:39:29,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 345. [2022-11-03 03:39:29,172 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 03:39:29,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 513 transitions. [2022-11-03 03:39:29,175 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 513 transitions. Word has length 185 [2022-11-03 03:39:29,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:29,176 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 513 transitions. [2022-11-03 03:39:29,176 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 03:39:29,176 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 513 transitions. [2022-11-03 03:39:29,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:29,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:29,183 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 03:39:29,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-03 03:39:29,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:29,399 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:29,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:29,400 INFO L85 PathProgramCache]: Analyzing trace with hash -286462663, now seen corresponding path program 1 times [2022-11-03 03:39:29,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:29,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095963562] [2022-11-03 03:39:29,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:29,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:29,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:29,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:29,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 03:39:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:30,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:39:30,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:30,625 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 03:39:30,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:30,626 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:30,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095963562] [2022-11-03 03:39:30,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095963562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:30,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:30,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:30,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002905435] [2022-11-03 03:39:30,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:30,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:30,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:30,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:30,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:30,630 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 03:39:30,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:30,884 INFO L93 Difference]: Finished difference Result 1372 states and 2042 transitions. [2022-11-03 03:39:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:30,885 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 03:39:30,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:30,889 INFO L225 Difference]: With dead ends: 1372 [2022-11-03 03:39:30,889 INFO L226 Difference]: Without dead ends: 1029 [2022-11-03 03:39:30,890 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 03:39:30,891 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 03:39:30,892 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 03:39:30,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-11-03 03:39:30,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 349. [2022-11-03 03:39:30,912 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 03:39:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 518 transitions. [2022-11-03 03:39:30,913 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 518 transitions. Word has length 185 [2022-11-03 03:39:30,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:30,914 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 518 transitions. [2022-11-03 03:39:30,914 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 03:39:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 518 transitions. [2022-11-03 03:39:30,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:30,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:30,917 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 03:39:30,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:31,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:31,140 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:31,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:31,141 INFO L85 PathProgramCache]: Analyzing trace with hash 319312119, now seen corresponding path program 1 times [2022-11-03 03:39:31,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:31,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991388743] [2022-11-03 03:39:31,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:31,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:31,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:31,145 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:31,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 03:39:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:32,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:39:32,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:32,317 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 03:39:32,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:32,318 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:32,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991388743] [2022-11-03 03:39:32,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991388743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:32,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:32,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:32,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026360260] [2022-11-03 03:39:32,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:32,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:32,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:32,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:32,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:32,321 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 03:39:32,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:32,570 INFO L93 Difference]: Finished difference Result 1378 states and 2048 transitions. [2022-11-03 03:39:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:32,571 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 03:39:32,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:32,574 INFO L225 Difference]: With dead ends: 1378 [2022-11-03 03:39:32,575 INFO L226 Difference]: Without dead ends: 1031 [2022-11-03 03:39:32,575 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 03:39:32,578 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 03:39:32,580 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 03:39:32,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-11-03 03:39:32,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 351. [2022-11-03 03:39:32,592 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 03:39:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 520 transitions. [2022-11-03 03:39:32,594 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 520 transitions. Word has length 185 [2022-11-03 03:39:32,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:32,594 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 520 transitions. [2022-11-03 03:39:32,594 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 03:39:32,594 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 520 transitions. [2022-11-03 03:39:32,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:32,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:32,601 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 03:39:32,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:32,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:32,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:32,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:32,816 INFO L85 PathProgramCache]: Analyzing trace with hash -511341515, now seen corresponding path program 1 times [2022-11-03 03:39:32,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:32,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140255233] [2022-11-03 03:39:32,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:32,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:32,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:32,819 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:32,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 03:39:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:33,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 03:39:33,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:34,039 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 03:39:34,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:34,040 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:34,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140255233] [2022-11-03 03:39:34,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140255233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:34,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:34,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:39:34,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127132108] [2022-11-03 03:39:34,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:34,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:39:34,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:34,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:39:34,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:39:34,047 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 03:39:34,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:34,830 INFO L93 Difference]: Finished difference Result 1393 states and 2066 transitions. [2022-11-03 03:39:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:39:34,831 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 03:39:34,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:34,834 INFO L225 Difference]: With dead ends: 1393 [2022-11-03 03:39:34,835 INFO L226 Difference]: Without dead ends: 1044 [2022-11-03 03:39:34,835 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 03:39:34,836 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 03:39:34,837 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 03:39:34,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-11-03 03:39:34,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 353. [2022-11-03 03:39:34,847 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 03:39:34,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 522 transitions. [2022-11-03 03:39:34,848 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 522 transitions. Word has length 185 [2022-11-03 03:39:34,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:34,848 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 522 transitions. [2022-11-03 03:39:34,849 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 03:39:34,849 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 522 transitions. [2022-11-03 03:39:34,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:34,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:34,851 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 03:39:34,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:35,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:35,071 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:35,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:35,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1879802125, now seen corresponding path program 1 times [2022-11-03 03:39:35,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:35,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205003272] [2022-11-03 03:39:35,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:35,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:35,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:35,074 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:35,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 03:39:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:36,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 03:39:36,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:36,243 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 03:39:36,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:36,243 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:36,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205003272] [2022-11-03 03:39:36,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205003272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:36,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:36,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 03:39:36,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357996390] [2022-11-03 03:39:36,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:36,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 03:39:36,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:36,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 03:39:36,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:39:36,255 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 03:39:37,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:37,655 INFO L93 Difference]: Finished difference Result 1773 states and 2615 transitions. [2022-11-03 03:39:37,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-03 03:39:37,656 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 03:39:37,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:37,660 INFO L225 Difference]: With dead ends: 1773 [2022-11-03 03:39:37,661 INFO L226 Difference]: Without dead ends: 1422 [2022-11-03 03:39:37,662 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 03:39:37,663 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 03:39:37,663 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 03:39:37,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2022-11-03 03:39:37,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 363. [2022-11-03 03:39:37,677 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 03:39:37,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 533 transitions. [2022-11-03 03:39:37,678 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 533 transitions. Word has length 185 [2022-11-03 03:39:37,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:37,678 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 533 transitions. [2022-11-03 03:39:37,679 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 03:39:37,679 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 533 transitions. [2022-11-03 03:39:37,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:37,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:37,681 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 03:39:37,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:37,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:37,896 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:37,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:37,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1189970635, now seen corresponding path program 1 times [2022-11-03 03:39:37,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:37,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127679147] [2022-11-03 03:39:37,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:37,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:37,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:37,899 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:37,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 03:39:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:38,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-03 03:39:38,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:39,310 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 03:39:39,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:39,310 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:39,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127679147] [2022-11-03 03:39:39,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127679147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:39,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:39,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:39,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932506383] [2022-11-03 03:39:39,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:39,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:39,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:39,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:39,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:39,313 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 03:39:39,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:39,960 INFO L93 Difference]: Finished difference Result 1420 states and 2093 transitions. [2022-11-03 03:39:39,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:39,961 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 03:39:39,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:39,965 INFO L225 Difference]: With dead ends: 1420 [2022-11-03 03:39:39,965 INFO L226 Difference]: Without dead ends: 1059 [2022-11-03 03:39:39,966 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 03:39:39,966 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 03:39:39,967 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 03:39:39,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2022-11-03 03:39:39,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 369. [2022-11-03 03:39:39,978 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 03:39:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 541 transitions. [2022-11-03 03:39:39,980 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 541 transitions. Word has length 185 [2022-11-03 03:39:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:39,980 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 541 transitions. [2022-11-03 03:39:39,980 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 03:39:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 541 transitions. [2022-11-03 03:39:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:39,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:39,983 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 03:39:40,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:40,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:40,199 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:40,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:40,199 INFO L85 PathProgramCache]: Analyzing trace with hash -681191821, now seen corresponding path program 1 times [2022-11-03 03:39:40,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:40,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161837763] [2022-11-03 03:39:40,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:40,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:40,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:40,202 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:40,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 03:39:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:41,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 03:39:41,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:41,136 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 03:39:41,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:41,136 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:41,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161837763] [2022-11-03 03:39:41,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161837763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:41,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:41,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:39:41,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533843771] [2022-11-03 03:39:41,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:41,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:39:41,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:41,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:39:41,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:39:41,139 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 03:39:41,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:41,342 INFO L93 Difference]: Finished difference Result 1469 states and 2156 transitions. [2022-11-03 03:39:41,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:39:41,343 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 03:39:41,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:41,347 INFO L225 Difference]: With dead ends: 1469 [2022-11-03 03:39:41,347 INFO L226 Difference]: Without dead ends: 1102 [2022-11-03 03:39:41,348 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 03:39:41,349 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 1475 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 03:39:41,349 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 03:39:41,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-11-03 03:39:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 415. [2022-11-03 03:39:41,367 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 03:39:41,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 600 transitions. [2022-11-03 03:39:41,368 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 600 transitions. Word has length 185 [2022-11-03 03:39:41,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:41,368 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 600 transitions. [2022-11-03 03:39:41,369 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 03:39:41,370 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 600 transitions. [2022-11-03 03:39:41,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:41,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:41,372 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 03:39:41,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:41,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:41,595 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:41,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:41,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1889167153, now seen corresponding path program 1 times [2022-11-03 03:39:41,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:41,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228424171] [2022-11-03 03:39:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:41,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:41,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:41,599 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:41,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 03:39:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:42,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 03:39:42,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:42,501 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 03:39:42,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:42,502 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:42,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228424171] [2022-11-03 03:39:42,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228424171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:42,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:42,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:39:42,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371933040] [2022-11-03 03:39:42,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:42,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:39:42,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:42,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:39:42,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:39:42,504 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 03:39:42,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:42,704 INFO L93 Difference]: Finished difference Result 1469 states and 2155 transitions. [2022-11-03 03:39:42,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:39:42,705 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 03:39:42,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:42,709 INFO L225 Difference]: With dead ends: 1469 [2022-11-03 03:39:42,709 INFO L226 Difference]: Without dead ends: 1102 [2022-11-03 03:39:42,710 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 03:39:42,711 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 03:39:42,711 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 03:39:42,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-11-03 03:39:42,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 417. [2022-11-03 03:39:42,725 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 03:39:42,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 602 transitions. [2022-11-03 03:39:42,726 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 602 transitions. Word has length 185 [2022-11-03 03:39:42,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:42,727 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 602 transitions. [2022-11-03 03:39:42,727 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 03:39:42,727 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 602 transitions. [2022-11-03 03:39:42,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:42,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:42,730 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 03:39:42,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:42,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:42,952 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:42,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:42,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1835528337, now seen corresponding path program 1 times [2022-11-03 03:39:42,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:42,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62156434] [2022-11-03 03:39:42,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:42,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:42,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:42,955 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:42,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 03:39:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:43,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:39:43,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:44,019 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 03:39:44,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:44,019 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:44,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62156434] [2022-11-03 03:39:44,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62156434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:44,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:44,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:44,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041175880] [2022-11-03 03:39:44,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:44,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:44,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:44,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:44,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:44,022 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 03:39:44,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:44,254 INFO L93 Difference]: Finished difference Result 1526 states and 2229 transitions. [2022-11-03 03:39:44,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:44,255 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 03:39:44,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:44,259 INFO L225 Difference]: With dead ends: 1526 [2022-11-03 03:39:44,259 INFO L226 Difference]: Without dead ends: 1159 [2022-11-03 03:39:44,260 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 03:39:44,263 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 03:39:44,264 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 03:39:44,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2022-11-03 03:39:44,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 423. [2022-11-03 03:39:44,281 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 03:39:44,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 610 transitions. [2022-11-03 03:39:44,282 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 610 transitions. Word has length 185 [2022-11-03 03:39:44,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:44,283 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 610 transitions. [2022-11-03 03:39:44,283 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 03:39:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 610 transitions. [2022-11-03 03:39:44,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:44,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:44,285 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 03:39:44,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:44,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:44,507 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:44,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:44,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1536271533, now seen corresponding path program 1 times [2022-11-03 03:39:44,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:44,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986522127] [2022-11-03 03:39:44,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:44,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:44,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:44,511 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:44,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 03:39:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:45,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:39:45,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:45,501 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 03:39:45,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:45,501 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:45,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986522127] [2022-11-03 03:39:45,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986522127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:45,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:45,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:45,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668494115] [2022-11-03 03:39:45,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:45,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:45,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:45,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:45,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:45,504 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 03:39:45,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:45,738 INFO L93 Difference]: Finished difference Result 1534 states and 2238 transitions. [2022-11-03 03:39:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:45,739 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 03:39:45,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:45,743 INFO L225 Difference]: With dead ends: 1534 [2022-11-03 03:39:45,743 INFO L226 Difference]: Without dead ends: 1161 [2022-11-03 03:39:45,744 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 03:39:45,744 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 03:39:45,744 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 03:39:45,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2022-11-03 03:39:45,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 425. [2022-11-03 03:39:45,758 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 03:39:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 612 transitions. [2022-11-03 03:39:45,760 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 612 transitions. Word has length 185 [2022-11-03 03:39:45,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:45,760 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 612 transitions. [2022-11-03 03:39:45,760 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 03:39:45,761 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 612 transitions. [2022-11-03 03:39:45,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:45,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:45,763 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 03:39:45,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:45,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:45,985 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:45,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1271624043, now seen corresponding path program 1 times [2022-11-03 03:39:45,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:45,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926039168] [2022-11-03 03:39:45,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:45,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:45,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:45,989 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:46,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 03:39:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:46,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 03:39:46,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:47,199 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 03:39:47,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:47,199 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:47,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926039168] [2022-11-03 03:39:47,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926039168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:47,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:47,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:47,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533225617] [2022-11-03 03:39:47,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:47,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:47,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:47,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:47,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:47,202 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 03:39:47,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:47,783 INFO L93 Difference]: Finished difference Result 1538 states and 2241 transitions. [2022-11-03 03:39:47,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:47,783 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 03:39:47,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:47,787 INFO L225 Difference]: With dead ends: 1538 [2022-11-03 03:39:47,787 INFO L226 Difference]: Without dead ends: 1163 [2022-11-03 03:39:47,788 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 03:39:47,789 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 03:39:47,789 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 03:39:47,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2022-11-03 03:39:47,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 427. [2022-11-03 03:39:47,803 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 03:39:47,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 614 transitions. [2022-11-03 03:39:47,806 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 614 transitions. Word has length 185 [2022-11-03 03:39:47,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:47,809 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 614 transitions. [2022-11-03 03:39:47,809 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 03:39:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 614 transitions. [2022-11-03 03:39:47,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:47,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:47,811 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 03:39:47,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:48,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:48,035 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:48,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:48,035 INFO L85 PathProgramCache]: Analyzing trace with hash -51554903, now seen corresponding path program 1 times [2022-11-03 03:39:48,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:48,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757022764] [2022-11-03 03:39:48,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:48,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:48,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:48,038 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:48,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 03:39:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:48,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:39:48,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:49,134 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 03:39:49,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:49,135 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:49,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757022764] [2022-11-03 03:39:49,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757022764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:49,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:49,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:49,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186006955] [2022-11-03 03:39:49,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:49,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:49,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:49,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:49,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:49,138 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 03:39:49,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:49,372 INFO L93 Difference]: Finished difference Result 1544 states and 2247 transitions. [2022-11-03 03:39:49,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:49,373 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 03:39:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:49,377 INFO L225 Difference]: With dead ends: 1544 [2022-11-03 03:39:49,377 INFO L226 Difference]: Without dead ends: 1167 [2022-11-03 03:39:49,378 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 03:39:49,379 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 03:39:49,379 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 03:39:49,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2022-11-03 03:39:49,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 431. [2022-11-03 03:39:49,395 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 03:39:49,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 619 transitions. [2022-11-03 03:39:49,396 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 619 transitions. Word has length 185 [2022-11-03 03:39:49,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:49,397 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 619 transitions. [2022-11-03 03:39:49,397 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 03:39:49,397 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 619 transitions. [2022-11-03 03:39:49,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:49,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:49,398 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 03:39:49,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:49,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:49,612 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:49,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:49,613 INFO L85 PathProgramCache]: Analyzing trace with hash -591984409, now seen corresponding path program 1 times [2022-11-03 03:39:49,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:49,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191602094] [2022-11-03 03:39:49,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:49,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:49,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:49,615 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:49,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 03:39:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:50,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:39:50,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:50,661 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 03:39:50,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:50,661 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:50,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191602094] [2022-11-03 03:39:50,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191602094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:50,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:50,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:50,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7610197] [2022-11-03 03:39:50,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:50,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:50,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:50,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:50,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:50,664 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 03:39:50,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:50,940 INFO L93 Difference]: Finished difference Result 1550 states and 2253 transitions. [2022-11-03 03:39:50,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:50,941 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 03:39:50,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:50,945 INFO L225 Difference]: With dead ends: 1550 [2022-11-03 03:39:50,945 INFO L226 Difference]: Without dead ends: 1169 [2022-11-03 03:39:50,946 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 03:39:50,947 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 03:39:50,947 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 03:39:50,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2022-11-03 03:39:50,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 433. [2022-11-03 03:39:50,963 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 03:39:50,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 621 transitions. [2022-11-03 03:39:50,964 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 621 transitions. Word has length 185 [2022-11-03 03:39:50,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:50,965 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 621 transitions. [2022-11-03 03:39:50,965 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 03:39:50,965 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 621 transitions. [2022-11-03 03:39:50,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:50,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:50,967 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 03:39:50,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:51,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:51,187 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:51,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:51,188 INFO L85 PathProgramCache]: Analyzing trace with hash -181374043, now seen corresponding path program 1 times [2022-11-03 03:39:51,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:51,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931583920] [2022-11-03 03:39:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:51,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:51,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:51,190 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:51,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 03:39:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:51,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 03:39:51,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:52,347 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 03:39:52,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:52,348 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:52,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931583920] [2022-11-03 03:39:52,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931583920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:52,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:52,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:52,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575389598] [2022-11-03 03:39:52,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:52,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:52,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:52,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:52,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:52,351 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 03:39:52,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:52,912 INFO L93 Difference]: Finished difference Result 1554 states and 2256 transitions. [2022-11-03 03:39:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:52,913 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 03:39:52,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:52,917 INFO L225 Difference]: With dead ends: 1554 [2022-11-03 03:39:52,917 INFO L226 Difference]: Without dead ends: 1171 [2022-11-03 03:39:52,918 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 03:39:52,919 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 03:39:52,919 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 03:39:52,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2022-11-03 03:39:52,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 435. [2022-11-03 03:39:52,934 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 03:39:52,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 623 transitions. [2022-11-03 03:39:52,935 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 623 transitions. Word has length 185 [2022-11-03 03:39:52,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:52,936 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 623 transitions. [2022-11-03 03:39:52,936 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 03:39:52,936 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 623 transitions. [2022-11-03 03:39:52,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:52,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:52,937 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 03:39:52,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:53,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:53,147 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:53,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:53,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1977710051, now seen corresponding path program 1 times [2022-11-03 03:39:53,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:53,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381812560] [2022-11-03 03:39:53,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:53,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:53,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:53,149 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:53,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 03:39:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:53,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:39:53,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:54,157 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 03:39:54,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:54,158 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:54,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381812560] [2022-11-03 03:39:54,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381812560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:54,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:54,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:54,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455448228] [2022-11-03 03:39:54,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:54,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:54,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:54,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:54,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:54,160 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 03:39:54,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:54,432 INFO L93 Difference]: Finished difference Result 1560 states and 2262 transitions. [2022-11-03 03:39:54,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:54,433 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 03:39:54,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:54,437 INFO L225 Difference]: With dead ends: 1560 [2022-11-03 03:39:54,437 INFO L226 Difference]: Without dead ends: 1175 [2022-11-03 03:39:54,438 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 03:39:54,439 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 03:39:54,439 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 03:39:54,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-11-03 03:39:54,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 439. [2022-11-03 03:39:54,455 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 03:39:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 628 transitions. [2022-11-03 03:39:54,456 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 628 transitions. Word has length 185 [2022-11-03 03:39:54,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:54,457 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 628 transitions. [2022-11-03 03:39:54,457 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 03:39:54,457 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 628 transitions. [2022-11-03 03:39:54,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:54,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:54,459 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 03:39:54,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:54,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:54,683 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:54,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:54,683 INFO L85 PathProgramCache]: Analyzing trace with hash 360269601, now seen corresponding path program 1 times [2022-11-03 03:39:54,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:54,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97738097] [2022-11-03 03:39:54,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:54,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:54,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:54,686 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:54,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-03 03:39:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:55,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 03:39:55,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:55,861 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 03:39:55,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:55,861 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:55,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97738097] [2022-11-03 03:39:55,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97738097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:55,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:55,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:55,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115162289] [2022-11-03 03:39:55,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:55,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:55,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:55,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:55,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:55,864 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 03:39:56,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:56,369 INFO L93 Difference]: Finished difference Result 1566 states and 2268 transitions. [2022-11-03 03:39:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:56,369 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 03:39:56,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:56,372 INFO L225 Difference]: With dead ends: 1566 [2022-11-03 03:39:56,372 INFO L226 Difference]: Without dead ends: 1177 [2022-11-03 03:39:56,373 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 03:39:56,373 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 3428 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 03:39:56,373 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 03:39:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-11-03 03:39:56,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 441. [2022-11-03 03:39:56,393 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 03:39:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 630 transitions. [2022-11-03 03:39:56,394 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 630 transitions. Word has length 185 [2022-11-03 03:39:56,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:56,394 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 630 transitions. [2022-11-03 03:39:56,395 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 03:39:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 630 transitions. [2022-11-03 03:39:56,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:56,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:56,396 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 03:39:56,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:56,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:56,609 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:56,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:56,610 INFO L85 PathProgramCache]: Analyzing trace with hash 649088991, now seen corresponding path program 1 times [2022-11-03 03:39:56,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:56,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790202767] [2022-11-03 03:39:56,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:56,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:56,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:56,612 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:56,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-03 03:39:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:57,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 03:39:57,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:39:58,283 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 03:39:58,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:39:58,283 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:39:58,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790202767] [2022-11-03 03:39:58,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790202767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:58,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:58,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:39:58,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339485673] [2022-11-03 03:39:58,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:58,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:39:58,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:58,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:39:58,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:39:58,286 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 03:39:58,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:58,903 INFO L93 Difference]: Finished difference Result 1570 states and 2271 transitions. [2022-11-03 03:39:58,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:39:58,903 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 03:39:58,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:58,907 INFO L225 Difference]: With dead ends: 1570 [2022-11-03 03:39:58,907 INFO L226 Difference]: Without dead ends: 1179 [2022-11-03 03:39:58,908 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 03:39:58,908 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 03:39:58,909 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 03:39:58,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2022-11-03 03:39:58,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 443. [2022-11-03 03:39:58,925 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 03:39:58,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 632 transitions. [2022-11-03 03:39:58,926 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 632 transitions. Word has length 185 [2022-11-03 03:39:58,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:58,927 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 632 transitions. [2022-11-03 03:39:58,927 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 03:39:58,927 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 632 transitions. [2022-11-03 03:39:58,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:39:58,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:58,929 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 03:39:58,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-03 03:39:59,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:39:59,151 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:59,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:59,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1324249117, now seen corresponding path program 1 times [2022-11-03 03:39:59,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:39:59,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869452827] [2022-11-03 03:39:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:59,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:39:59,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:39:59,154 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:39:59,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 03:39:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:59,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:39:59,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:00,187 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 03:40:00,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:00,187 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:00,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869452827] [2022-11-03 03:40:00,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869452827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:00,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:00,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:40:00,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386732398] [2022-11-03 03:40:00,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:00,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:40:00,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:00,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:40:00,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:40:00,193 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 03:40:00,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:00,536 INFO L93 Difference]: Finished difference Result 1519 states and 2201 transitions. [2022-11-03 03:40:00,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:40:00,537 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 03:40:00,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:00,539 INFO L225 Difference]: With dead ends: 1519 [2022-11-03 03:40:00,539 INFO L226 Difference]: Without dead ends: 1126 [2022-11-03 03:40:00,539 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 03:40:00,540 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 03:40:00,540 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 03:40:00,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-11-03 03:40:00,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 447. [2022-11-03 03:40:00,556 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 03:40:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 637 transitions. [2022-11-03 03:40:00,558 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 637 transitions. Word has length 185 [2022-11-03 03:40:00,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:00,558 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 637 transitions. [2022-11-03 03:40:00,558 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 03:40:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 637 transitions. [2022-11-03 03:40:00,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:00,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:00,560 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 03:40:00,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:00,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:00,783 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:00,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:00,784 INFO L85 PathProgramCache]: Analyzing trace with hash 894590811, now seen corresponding path program 1 times [2022-11-03 03:40:00,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:00,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641112383] [2022-11-03 03:40:00,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:00,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:00,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:00,787 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:00,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-03 03:40:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:01,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:40:01,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:01,915 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 03:40:01,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:01,916 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:01,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641112383] [2022-11-03 03:40:01,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1641112383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:01,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:01,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:40:01,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782306523] [2022-11-03 03:40:01,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:01,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:40:01,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:01,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:40:01,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:40:01,918 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 03:40:02,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:02,404 INFO L93 Difference]: Finished difference Result 1636 states and 2355 transitions. [2022-11-03 03:40:02,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:40:02,405 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 03:40:02,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:02,411 INFO L225 Difference]: With dead ends: 1636 [2022-11-03 03:40:02,411 INFO L226 Difference]: Without dead ends: 1239 [2022-11-03 03:40:02,412 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 03:40:02,412 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 03:40:02,412 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 03:40:02,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2022-11-03 03:40:02,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 449. [2022-11-03 03:40:02,430 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 03:40:02,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 639 transitions. [2022-11-03 03:40:02,431 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 639 transitions. Word has length 185 [2022-11-03 03:40:02,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:02,431 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 639 transitions. [2022-11-03 03:40:02,432 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 03:40:02,432 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 639 transitions. [2022-11-03 03:40:02,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:02,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:02,433 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 03:40:02,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-11-03 03:40:02,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:02,647 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:02,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:02,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1841628697, now seen corresponding path program 1 times [2022-11-03 03:40:02,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:02,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203605039] [2022-11-03 03:40:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:02,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:02,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:02,649 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:02,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 03:40:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:03,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:40:03,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:03,727 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 03:40:03,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:03,727 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:03,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203605039] [2022-11-03 03:40:03,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203605039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:03,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:03,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:40:03,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589099153] [2022-11-03 03:40:03,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:03,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:40:03,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:03,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:40:03,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:40:03,729 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 03:40:04,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:04,222 INFO L93 Difference]: Finished difference Result 1642 states and 2361 transitions. [2022-11-03 03:40:04,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:40:04,222 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 03:40:04,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:04,226 INFO L225 Difference]: With dead ends: 1642 [2022-11-03 03:40:04,226 INFO L226 Difference]: Without dead ends: 1243 [2022-11-03 03:40:04,227 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 03:40:04,235 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 03:40:04,236 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 03:40:04,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2022-11-03 03:40:04,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 453. [2022-11-03 03:40:04,259 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 03:40:04,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 644 transitions. [2022-11-03 03:40:04,260 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 644 transitions. Word has length 185 [2022-11-03 03:40:04,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:04,260 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 644 transitions. [2022-11-03 03:40:04,261 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 03:40:04,261 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 644 transitions. [2022-11-03 03:40:04,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:04,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:04,262 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 03:40:04,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:04,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:04,471 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:04,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:04,471 INFO L85 PathProgramCache]: Analyzing trace with hash 748993495, now seen corresponding path program 1 times [2022-11-03 03:40:04,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:04,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921543956] [2022-11-03 03:40:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:04,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:04,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:04,474 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:04,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-03 03:40:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:05,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:40:05,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:05,534 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 03:40:05,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:05,534 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:05,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921543956] [2022-11-03 03:40:05,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921543956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:05,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:05,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:40:05,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060274278] [2022-11-03 03:40:05,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:05,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:40:05,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:05,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:40:05,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:40:05,536 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 03:40:06,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:06,046 INFO L93 Difference]: Finished difference Result 1648 states and 2367 transitions. [2022-11-03 03:40:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:40:06,046 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 03:40:06,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:06,048 INFO L225 Difference]: With dead ends: 1648 [2022-11-03 03:40:06,048 INFO L226 Difference]: Without dead ends: 1245 [2022-11-03 03:40:06,049 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 03:40:06,050 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 03:40:06,050 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 03:40:06,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-11-03 03:40:06,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 455. [2022-11-03 03:40:06,066 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 03:40:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 646 transitions. [2022-11-03 03:40:06,068 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 646 transitions. Word has length 185 [2022-11-03 03:40:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:06,068 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 646 transitions. [2022-11-03 03:40:06,068 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 03:40:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 646 transitions. [2022-11-03 03:40:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:06,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:06,070 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 03:40:06,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:06,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:06,283 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:06,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:06,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1093482219, now seen corresponding path program 1 times [2022-11-03 03:40:06,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:06,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102564227] [2022-11-03 03:40:06,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:06,284 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:06,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:06,285 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:06,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-03 03:40:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:07,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 03:40:07,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:07,571 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 03:40:07,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:07,572 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:07,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102564227] [2022-11-03 03:40:07,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102564227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:07,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:07,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:40:07,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591078018] [2022-11-03 03:40:07,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:07,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:40:07,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:07,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:40:07,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:40:07,574 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 03:40:08,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:08,332 INFO L93 Difference]: Finished difference Result 1652 states and 2370 transitions. [2022-11-03 03:40:08,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:40:08,335 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 03:40:08,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:08,338 INFO L225 Difference]: With dead ends: 1652 [2022-11-03 03:40:08,338 INFO L226 Difference]: Without dead ends: 1247 [2022-11-03 03:40:08,339 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 03:40:08,340 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 03:40:08,341 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 03:40:08,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2022-11-03 03:40:08,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 457. [2022-11-03 03:40:08,357 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 03:40:08,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 648 transitions. [2022-11-03 03:40:08,358 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 648 transitions. Word has length 185 [2022-11-03 03:40:08,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:08,359 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 648 transitions. [2022-11-03 03:40:08,359 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 03:40:08,359 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 648 transitions. [2022-11-03 03:40:08,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:08,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:08,360 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 03:40:08,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:08,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:08,584 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:08,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:08,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1426125357, now seen corresponding path program 1 times [2022-11-03 03:40:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:08,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129081680] [2022-11-03 03:40:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:08,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:08,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:08,587 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:08,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-03 03:40:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:09,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 03:40:09,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:10,408 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 03:40:10,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:10,408 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:10,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129081680] [2022-11-03 03:40:10,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129081680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:10,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:10,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:40:10,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347381740] [2022-11-03 03:40:10,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:10,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:40:10,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:10,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:40:10,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:40:10,411 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 03:40:11,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:11,325 INFO L93 Difference]: Finished difference Result 1656 states and 2373 transitions. [2022-11-03 03:40:11,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:40:11,326 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 03:40:11,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:11,329 INFO L225 Difference]: With dead ends: 1656 [2022-11-03 03:40:11,329 INFO L226 Difference]: Without dead ends: 1249 [2022-11-03 03:40:11,330 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 03:40:11,331 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, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:40:11,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3877 Valid, 3067 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 03:40:11,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-11-03 03:40:11,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 459. [2022-11-03 03:40:11,348 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 03:40:11,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 650 transitions. [2022-11-03 03:40:11,350 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 650 transitions. Word has length 185 [2022-11-03 03:40:11,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:11,350 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 650 transitions. [2022-11-03 03:40:11,351 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 03:40:11,351 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 650 transitions. [2022-11-03 03:40:11,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:11,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:11,352 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 03:40:11,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-11-03 03:40:11,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:11,567 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:11,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:11,567 INFO L85 PathProgramCache]: Analyzing trace with hash 575760913, now seen corresponding path program 1 times [2022-11-03 03:40:11,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:11,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809187629] [2022-11-03 03:40:11,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:11,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:11,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:11,570 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:11,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 03:40:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:12,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:40:12,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:12,673 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 03:40:12,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:12,673 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:12,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809187629] [2022-11-03 03:40:12,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809187629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:12,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:12,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:40:12,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504627889] [2022-11-03 03:40:12,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:12,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:40:12,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:12,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:40:12,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:40:12,677 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 03:40:13,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:13,057 INFO L93 Difference]: Finished difference Result 1549 states and 2228 transitions. [2022-11-03 03:40:13,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:40:13,058 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 03:40:13,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:13,059 INFO L225 Difference]: With dead ends: 1549 [2022-11-03 03:40:13,060 INFO L226 Difference]: Without dead ends: 1140 [2022-11-03 03:40:13,060 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 03:40:13,061 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 03:40:13,061 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 03:40:13,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-11-03 03:40:13,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 461. [2022-11-03 03:40:13,078 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 03:40:13,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 652 transitions. [2022-11-03 03:40:13,079 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 652 transitions. Word has length 185 [2022-11-03 03:40:13,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:13,079 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 652 transitions. [2022-11-03 03:40:13,080 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 03:40:13,080 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 652 transitions. [2022-11-03 03:40:13,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:13,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:13,081 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 03:40:13,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:13,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:13,303 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:13,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:13,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1047117263, now seen corresponding path program 1 times [2022-11-03 03:40:13,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:13,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768506387] [2022-11-03 03:40:13,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:13,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:13,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:13,306 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:13,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-03 03:40:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:14,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:40:14,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:14,381 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 03:40:14,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:14,381 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:14,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768506387] [2022-11-03 03:40:14,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768506387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:14,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:14,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:40:14,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226517690] [2022-11-03 03:40:14,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:14,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:40:14,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:14,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:40:14,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:40:14,384 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 03:40:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:14,879 INFO L93 Difference]: Finished difference Result 1692 states and 2415 transitions. [2022-11-03 03:40:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:40:14,880 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 03:40:14,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:14,882 INFO L225 Difference]: With dead ends: 1692 [2022-11-03 03:40:14,883 INFO L226 Difference]: Without dead ends: 1281 [2022-11-03 03:40:14,884 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 03:40:14,884 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 3923 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 03:40:14,885 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 03:40:14,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-11-03 03:40:14,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 463. [2022-11-03 03:40:14,901 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 03:40:14,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 654 transitions. [2022-11-03 03:40:14,903 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 654 transitions. Word has length 185 [2022-11-03 03:40:14,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:14,903 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 654 transitions. [2022-11-03 03:40:14,903 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 03:40:14,903 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 654 transitions. [2022-11-03 03:40:14,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:14,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:14,905 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 03:40:14,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:15,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:15,127 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:15,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:15,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1084233459, now seen corresponding path program 1 times [2022-11-03 03:40:15,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:15,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209137577] [2022-11-03 03:40:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:15,128 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:15,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:15,129 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:15,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-03 03:40:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:15,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 03:40:15,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:16,546 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 03:40:16,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:16,546 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:16,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209137577] [2022-11-03 03:40:16,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209137577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:16,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:16,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:40:16,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964499714] [2022-11-03 03:40:16,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:16,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:40:16,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:16,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:40:16,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:40:16,549 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 03:40:17,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:17,281 INFO L93 Difference]: Finished difference Result 1696 states and 2418 transitions. [2022-11-03 03:40:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:40:17,281 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 03:40:17,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:17,283 INFO L225 Difference]: With dead ends: 1696 [2022-11-03 03:40:17,283 INFO L226 Difference]: Without dead ends: 1283 [2022-11-03 03:40:17,284 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 03:40:17,285 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 03:40:17,285 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 03:40:17,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-11-03 03:40:17,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 465. [2022-11-03 03:40:17,296 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 03:40:17,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 656 transitions. [2022-11-03 03:40:17,297 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 656 transitions. Word has length 185 [2022-11-03 03:40:17,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:17,297 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 656 transitions. [2022-11-03 03:40:17,298 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 03:40:17,298 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 656 transitions. [2022-11-03 03:40:17,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:17,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:17,299 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 03:40:17,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-11-03 03:40:17,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:17,519 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:17,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:17,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1237568459, now seen corresponding path program 1 times [2022-11-03 03:40:17,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:17,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584397792] [2022-11-03 03:40:17,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:17,521 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:17,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:17,522 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:17,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-03 03:40:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:18,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:40:18,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:18,589 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 03:40:18,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:18,589 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:18,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584397792] [2022-11-03 03:40:18,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584397792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:18,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:18,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:40:18,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082711361] [2022-11-03 03:40:18,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:18,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:40:18,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:18,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:40:18,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:40:18,591 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 03:40:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:18,936 INFO L93 Difference]: Finished difference Result 1561 states and 2237 transitions. [2022-11-03 03:40:18,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:40:18,937 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 03:40:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:18,938 INFO L225 Difference]: With dead ends: 1561 [2022-11-03 03:40:18,938 INFO L226 Difference]: Without dead ends: 1146 [2022-11-03 03:40:18,939 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 03:40:18,939 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 03:40:18,940 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 03:40:18,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2022-11-03 03:40:18,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 467. [2022-11-03 03:40:18,956 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 03:40:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 658 transitions. [2022-11-03 03:40:18,957 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 658 transitions. Word has length 185 [2022-11-03 03:40:18,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:18,957 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 658 transitions. [2022-11-03 03:40:18,958 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 03:40:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 658 transitions. [2022-11-03 03:40:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:18,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:18,959 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 03:40:18,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:19,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:19,173 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:19,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:19,173 INFO L85 PathProgramCache]: Analyzing trace with hash 614286857, now seen corresponding path program 1 times [2022-11-03 03:40:19,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:19,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389617195] [2022-11-03 03:40:19,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:19,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:19,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:19,176 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:19,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-03 03:40:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:19,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 03:40:19,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:20,645 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 03:40:20,646 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:20,646 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:20,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389617195] [2022-11-03 03:40:20,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389617195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:20,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:20,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:40:20,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804768920] [2022-11-03 03:40:20,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:20,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:40:20,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:20,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:40:20,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:40:20,648 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 03:40:21,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:21,376 INFO L93 Difference]: Finished difference Result 1718 states and 2442 transitions. [2022-11-03 03:40:21,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:40:21,377 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 03:40:21,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:21,378 INFO L225 Difference]: With dead ends: 1718 [2022-11-03 03:40:21,379 INFO L226 Difference]: Without dead ends: 1301 [2022-11-03 03:40:21,380 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 03:40:21,380 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 03:40:21,380 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 03:40:21,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2022-11-03 03:40:21,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 471. [2022-11-03 03:40:21,397 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 03:40:21,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 663 transitions. [2022-11-03 03:40:21,399 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 663 transitions. Word has length 185 [2022-11-03 03:40:21,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:21,399 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 663 transitions. [2022-11-03 03:40:21,399 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 03:40:21,400 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 663 transitions. [2022-11-03 03:40:21,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:21,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:21,401 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 03:40:21,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:21,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:21,615 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:21,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:21,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1252421817, now seen corresponding path program 1 times [2022-11-03 03:40:21,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:21,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814247404] [2022-11-03 03:40:21,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:21,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:21,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:21,617 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:21,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-03 03:40:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:22,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 03:40:22,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:23,741 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 03:40:23,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:23,742 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:23,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814247404] [2022-11-03 03:40:23,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814247404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:23,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:23,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:40:23,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314626615] [2022-11-03 03:40:23,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:23,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:40:23,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:23,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:40:23,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:40:23,745 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 03:40:24,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:24,627 INFO L93 Difference]: Finished difference Result 1712 states and 2433 transitions. [2022-11-03 03:40:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:40:24,628 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 03:40:24,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:24,630 INFO L225 Difference]: With dead ends: 1712 [2022-11-03 03:40:24,630 INFO L226 Difference]: Without dead ends: 1291 [2022-11-03 03:40:24,631 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 03:40:24,631 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 03:40:24,631 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 03:40:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-11-03 03:40:24,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 473. [2022-11-03 03:40:24,647 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 03:40:24,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 665 transitions. [2022-11-03 03:40:24,648 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 665 transitions. Word has length 185 [2022-11-03 03:40:24,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:24,649 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 665 transitions. [2022-11-03 03:40:24,649 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 03:40:24,649 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 665 transitions. [2022-11-03 03:40:24,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:24,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:24,651 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 03:40:24,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:24,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:24,867 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:24,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:24,867 INFO L85 PathProgramCache]: Analyzing trace with hash 645074949, now seen corresponding path program 1 times [2022-11-03 03:40:24,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:24,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774717410] [2022-11-03 03:40:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:24,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:24,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:24,870 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:24,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-03 03:40:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:25,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 68 conjunts are in the unsatisfiable core [2022-11-03 03:40:25,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:28,136 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 03:40:28,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:28,137 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:28,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774717410] [2022-11-03 03:40:28,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774717410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:28,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:28,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:40:28,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869853959] [2022-11-03 03:40:28,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:28,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:40:28,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:28,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:40:28,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:40:28,139 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 03:40:29,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:29,225 INFO L93 Difference]: Finished difference Result 1688 states and 2400 transitions. [2022-11-03 03:40:29,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:40:29,225 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 03:40:29,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:29,227 INFO L225 Difference]: With dead ends: 1688 [2022-11-03 03:40:29,227 INFO L226 Difference]: Without dead ends: 1265 [2022-11-03 03:40:29,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:40:29,228 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, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:40:29,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3826 Valid, 3088 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 03:40:29,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2022-11-03 03:40:29,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 475. [2022-11-03 03:40:29,245 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 03:40:29,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 667 transitions. [2022-11-03 03:40:29,246 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 667 transitions. Word has length 185 [2022-11-03 03:40:29,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:29,246 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 667 transitions. [2022-11-03 03:40:29,246 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 03:40:29,247 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 667 transitions. [2022-11-03 03:40:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:29,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:29,248 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 03:40:29,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2022-11-03 03:40:29,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:29,459 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:29,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:29,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1261328317, now seen corresponding path program 1 times [2022-11-03 03:40:29,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:29,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582746141] [2022-11-03 03:40:29,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:29,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:29,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:29,461 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:29,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-03 03:40:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:30,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 03:40:30,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:30,623 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 03:40:30,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:30,623 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:30,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582746141] [2022-11-03 03:40:30,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582746141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:30,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:30,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:40:30,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212175506] [2022-11-03 03:40:30,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:30,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:40:30,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:30,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:40:30,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:40:30,626 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 03:40:31,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:31,208 INFO L93 Difference]: Finished difference Result 1874 states and 2641 transitions. [2022-11-03 03:40:31,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:40:31,209 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 03:40:31,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:31,211 INFO L225 Difference]: With dead ends: 1874 [2022-11-03 03:40:31,211 INFO L226 Difference]: Without dead ends: 1449 [2022-11-03 03:40:31,212 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 03:40:31,213 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, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:40:31,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3323 Valid, 2441 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 03:40:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2022-11-03 03:40:31,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 477. [2022-11-03 03:40:31,229 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 03:40:31,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 669 transitions. [2022-11-03 03:40:31,230 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 669 transitions. Word has length 185 [2022-11-03 03:40:31,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:31,231 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 669 transitions. [2022-11-03 03:40:31,231 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 03:40:31,231 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 669 transitions. [2022-11-03 03:40:31,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:31,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:31,232 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 03:40:31,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2022-11-03 03:40:31,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:31,443 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:31,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:31,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1289828607, now seen corresponding path program 1 times [2022-11-03 03:40:31,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:31,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1698136805] [2022-11-03 03:40:31,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:31,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:31,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:31,446 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:31,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-03 03:40:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:32,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 03:40:32,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:32,363 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 03:40:32,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:32,363 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:32,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1698136805] [2022-11-03 03:40:32,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1698136805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:32,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:32,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:40:32,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121512517] [2022-11-03 03:40:32,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:32,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:40:32,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:32,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:40:32,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:40:32,366 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 03:40:32,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:32,554 INFO L93 Difference]: Finished difference Result 1709 states and 2422 transitions. [2022-11-03 03:40:32,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:40:32,555 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 03:40:32,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:32,556 INFO L225 Difference]: With dead ends: 1709 [2022-11-03 03:40:32,556 INFO L226 Difference]: Without dead ends: 1282 [2022-11-03 03:40:32,557 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 03:40:32,558 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:40:32,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 2001 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:40:32,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2022-11-03 03:40:32,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 611. [2022-11-03 03:40:32,576 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 03:40:32,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 846 transitions. [2022-11-03 03:40:32,577 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 846 transitions. Word has length 185 [2022-11-03 03:40:32,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:32,578 INFO L495 AbstractCegarLoop]: Abstraction has 611 states and 846 transitions. [2022-11-03 03:40:32,578 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 03:40:32,578 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 846 transitions. [2022-11-03 03:40:32,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:32,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:32,579 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 03:40:32,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-03 03:40:32,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:32,787 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:32,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:32,787 INFO L85 PathProgramCache]: Analyzing trace with hash 2010444991, now seen corresponding path program 1 times [2022-11-03 03:40:32,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:32,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113998896] [2022-11-03 03:40:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:32,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:32,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:32,789 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:32,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-03 03:40:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:33,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 03:40:33,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:33,706 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 03:40:33,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:33,706 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:33,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113998896] [2022-11-03 03:40:33,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113998896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:33,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:33,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:40:33,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432398978] [2022-11-03 03:40:33,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:33,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:40:33,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:33,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:40:33,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:40:33,708 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 03:40:33,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:33,883 INFO L93 Difference]: Finished difference Result 1709 states and 2421 transitions. [2022-11-03 03:40:33,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:40:33,885 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 03:40:33,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:33,886 INFO L225 Difference]: With dead ends: 1709 [2022-11-03 03:40:33,886 INFO L226 Difference]: Without dead ends: 1282 [2022-11-03 03:40:33,887 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 03:40:33,887 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:40:33,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 2000 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:40:33,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2022-11-03 03:40:33,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 619. [2022-11-03 03:40:33,903 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 03:40:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 857 transitions. [2022-11-03 03:40:33,904 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 857 transitions. Word has length 185 [2022-11-03 03:40:33,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:33,905 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 857 transitions. [2022-11-03 03:40:33,905 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 03:40:33,905 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 857 transitions. [2022-11-03 03:40:33,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:33,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:33,906 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 03:40:33,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2022-11-03 03:40:34,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:34,111 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:34,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:34,111 INFO L85 PathProgramCache]: Analyzing trace with hash 867942525, now seen corresponding path program 1 times [2022-11-03 03:40:34,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:34,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130894296] [2022-11-03 03:40:34,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:34,112 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:34,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:34,113 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:34,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-03 03:40:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:34,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-03 03:40:34,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:41,017 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 03:40:41,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:41,017 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:41,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130894296] [2022-11-03 03:40:41,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130894296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:41,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:41,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:40:41,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900253668] [2022-11-03 03:40:41,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:41,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:40:41,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:41,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:40:41,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:40:41,020 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 03:40:42,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:42,232 INFO L93 Difference]: Finished difference Result 1779 states and 2519 transitions. [2022-11-03 03:40:42,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:40:42,234 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 03:40:42,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:42,235 INFO L225 Difference]: With dead ends: 1779 [2022-11-03 03:40:42,235 INFO L226 Difference]: Without dead ends: 1352 [2022-11-03 03:40:42,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:40:42,237 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 3538 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3538 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:40:42,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3538 Valid, 3069 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 03:40:42,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2022-11-03 03:40:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 669. [2022-11-03 03:40:42,254 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 03:40:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 927 transitions. [2022-11-03 03:40:42,255 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 927 transitions. Word has length 185 [2022-11-03 03:40:42,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:42,256 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 927 transitions. [2022-11-03 03:40:42,256 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 03:40:42,256 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 927 transitions. [2022-11-03 03:40:42,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:42,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:42,257 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 03:40:42,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2022-11-03 03:40:42,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:42,468 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:42,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:42,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1518566981, now seen corresponding path program 1 times [2022-11-03 03:40:42,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:42,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105413590] [2022-11-03 03:40:42,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:42,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:42,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:42,471 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:42,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-03 03:40:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:43,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-03 03:40:43,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:46,172 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 03:40:46,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:46,172 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:46,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105413590] [2022-11-03 03:40:46,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105413590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:46,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:46,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:40:46,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551445578] [2022-11-03 03:40:46,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:46,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:40:46,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:46,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:40:46,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:40:46,174 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 03:40:47,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:47,593 INFO L93 Difference]: Finished difference Result 2038 states and 2870 transitions. [2022-11-03 03:40:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 03:40:47,594 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 03:40:47,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:47,596 INFO L225 Difference]: With dead ends: 2038 [2022-11-03 03:40:47,596 INFO L226 Difference]: Without dead ends: 1581 [2022-11-03 03:40:47,597 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 03:40:47,598 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, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:40:47,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4607 Valid, 4092 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 03:40:47,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2022-11-03 03:40:47,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 671. [2022-11-03 03:40:47,618 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 03:40:47,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 929 transitions. [2022-11-03 03:40:47,619 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 929 transitions. Word has length 185 [2022-11-03 03:40:47,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:47,620 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 929 transitions. [2022-11-03 03:40:47,620 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 03:40:47,620 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 929 transitions. [2022-11-03 03:40:47,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:47,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:47,622 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 03:40:47,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:47,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:47,844 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:47,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:47,844 INFO L85 PathProgramCache]: Analyzing trace with hash -564626823, now seen corresponding path program 1 times [2022-11-03 03:40:47,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:47,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814413969] [2022-11-03 03:40:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:47,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:47,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:47,847 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:47,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-03 03:40:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:48,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-03 03:40:48,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:55,182 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 03:40:55,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:55,182 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:55,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814413969] [2022-11-03 03:40:55,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814413969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:55,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:55,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:40:55,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857095434] [2022-11-03 03:40:55,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:55,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:40:55,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:55,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:40:55,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:40:55,185 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 03:40:56,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:56,957 INFO L93 Difference]: Finished difference Result 2042 states and 2873 transitions. [2022-11-03 03:40:56,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 03:40:56,957 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 03:40:56,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:56,960 INFO L225 Difference]: With dead ends: 2042 [2022-11-03 03:40:56,960 INFO L226 Difference]: Without dead ends: 1583 [2022-11-03 03:40:56,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-03 03:40:56,961 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 4404 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4404 SdHoareTripleChecker+Valid, 4023 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 03:40:56,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4404 Valid, 4023 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 03:40:56,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2022-11-03 03:40:56,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 673. [2022-11-03 03:40:56,988 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 03:40:56,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 931 transitions. [2022-11-03 03:40:56,990 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 931 transitions. Word has length 185 [2022-11-03 03:40:56,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:56,991 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 931 transitions. [2022-11-03 03:40:56,992 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 03:40:56,992 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 931 transitions. [2022-11-03 03:40:56,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:40:56,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:56,993 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 03:40:57,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2022-11-03 03:40:57,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:57,206 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:57,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:57,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1296594249, now seen corresponding path program 1 times [2022-11-03 03:40:57,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:57,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767550871] [2022-11-03 03:40:57,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:57,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:57,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:57,209 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:57,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-03 03:40:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:57,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-03 03:40:57,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:00,790 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 03:41:00,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:00,791 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:00,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767550871] [2022-11-03 03:41:00,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767550871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:00,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:00,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:41:00,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809781223] [2022-11-03 03:41:00,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:00,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:41:00,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:00,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:41:00,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:41:00,793 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 03:41:02,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:02,176 INFO L93 Difference]: Finished difference Result 2046 states and 2876 transitions. [2022-11-03 03:41:02,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 03:41:02,177 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 03:41:02,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:02,180 INFO L225 Difference]: With dead ends: 2046 [2022-11-03 03:41:02,180 INFO L226 Difference]: Without dead ends: 1585 [2022-11-03 03:41:02,181 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 03:41:02,182 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 4591 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4591 SdHoareTripleChecker+Valid, 4098 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 03:41:02,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4591 Valid, 4098 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 03:41:02,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-11-03 03:41:02,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 675. [2022-11-03 03:41:02,201 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 03:41:02,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 933 transitions. [2022-11-03 03:41:02,203 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 933 transitions. Word has length 185 [2022-11-03 03:41:02,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:02,203 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 933 transitions. [2022-11-03 03:41:02,203 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 03:41:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 933 transitions. [2022-11-03 03:41:02,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:41:02,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:02,205 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 03:41:02,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:02,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:02,422 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:02,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:02,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1350987147, now seen corresponding path program 1 times [2022-11-03 03:41:02,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:02,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446549896] [2022-11-03 03:41:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:02,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:02,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:02,425 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:02,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-03 03:41:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:03,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-03 03:41:03,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:05,934 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 03:41:05,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:05,935 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:05,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446549896] [2022-11-03 03:41:05,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446549896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:05,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:05,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:41:05,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862054733] [2022-11-03 03:41:05,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:05,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:41:05,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:05,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:41:05,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:41:05,939 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 03:41:07,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:07,350 INFO L93 Difference]: Finished difference Result 2050 states and 2879 transitions. [2022-11-03 03:41:07,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 03:41:07,351 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 03:41:07,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:07,352 INFO L225 Difference]: With dead ends: 2050 [2022-11-03 03:41:07,352 INFO L226 Difference]: Without dead ends: 1587 [2022-11-03 03:41:07,353 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 03:41:07,353 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 4583 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4583 SdHoareTripleChecker+Valid, 4101 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 03:41:07,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4583 Valid, 4101 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 03:41:07,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2022-11-03 03:41:07,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 677. [2022-11-03 03:41:07,370 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 03:41:07,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 935 transitions. [2022-11-03 03:41:07,372 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 935 transitions. Word has length 185 [2022-11-03 03:41:07,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:07,372 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 935 transitions. [2022-11-03 03:41:07,373 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 03:41:07,373 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 935 transitions. [2022-11-03 03:41:07,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:41:07,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:07,374 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 03:41:07,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2022-11-03 03:41:07,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:07,587 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:07,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:07,587 INFO L85 PathProgramCache]: Analyzing trace with hash -671714893, now seen corresponding path program 1 times [2022-11-03 03:41:07,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:07,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212455629] [2022-11-03 03:41:07,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:07,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:07,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:07,589 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:07,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-03 03:41:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:08,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 94 conjunts are in the unsatisfiable core [2022-11-03 03:41:08,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:16,222 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 03:41:16,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:16,223 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:16,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212455629] [2022-11-03 03:41:16,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212455629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:16,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:16,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:41:16,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962883414] [2022-11-03 03:41:16,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:16,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:41:16,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:16,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:41:16,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:41:16,225 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 03:41:18,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:18,184 INFO L93 Difference]: Finished difference Result 2054 states and 2882 transitions. [2022-11-03 03:41:18,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 03:41:18,185 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 03:41:18,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:18,188 INFO L225 Difference]: With dead ends: 2054 [2022-11-03 03:41:18,188 INFO L226 Difference]: Without dead ends: 1589 [2022-11-03 03:41:18,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-03 03:41:18,190 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 4380 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:18,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4380 Valid, 4032 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 03:41:18,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2022-11-03 03:41:18,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 679. [2022-11-03 03:41:18,210 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 03:41:18,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 937 transitions. [2022-11-03 03:41:18,211 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 937 transitions. Word has length 185 [2022-11-03 03:41:18,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:18,212 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 937 transitions. [2022-11-03 03:41:18,212 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 03:41:18,212 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 937 transitions. [2022-11-03 03:41:18,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:41:18,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:18,213 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 03:41:18,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:18,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:18,427 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:18,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:18,427 INFO L85 PathProgramCache]: Analyzing trace with hash -469890959, now seen corresponding path program 1 times [2022-11-03 03:41:18,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:18,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591914774] [2022-11-03 03:41:18,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:18,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:18,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:18,431 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:18,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-03 03:41:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:19,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-03 03:41:19,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:22,050 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 03:41:22,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:22,051 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:22,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591914774] [2022-11-03 03:41:22,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591914774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:22,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:22,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:41:22,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101610881] [2022-11-03 03:41:22,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:22,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:41:22,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:22,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:41:22,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:41:22,053 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 03:41:23,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:23,099 INFO L93 Difference]: Finished difference Result 1659 states and 2317 transitions. [2022-11-03 03:41:23,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:41:23,102 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 03:41:23,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:23,103 INFO L225 Difference]: With dead ends: 1659 [2022-11-03 03:41:23,103 INFO L226 Difference]: Without dead ends: 1192 [2022-11-03 03:41:23,104 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 03:41:23,104 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 1130 mSDsluCounter, 3496 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 4177 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:23,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 4177 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 25 Unchecked, 0.7s Time] [2022-11-03 03:41:23,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-11-03 03:41:23,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 703. [2022-11-03 03:41:23,123 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 03:41:23,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 966 transitions. [2022-11-03 03:41:23,124 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 966 transitions. Word has length 185 [2022-11-03 03:41:23,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:23,125 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 966 transitions. [2022-11-03 03:41:23,125 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 03:41:23,125 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 966 transitions. [2022-11-03 03:41:23,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:41:23,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:23,127 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 03:41:23,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:23,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:23,350 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:23,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:23,351 INFO L85 PathProgramCache]: Analyzing trace with hash -429216209, now seen corresponding path program 1 times [2022-11-03 03:41:23,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:23,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51014035] [2022-11-03 03:41:23,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:23,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:23,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:23,355 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:23,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-03 03:41:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:24,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-03 03:41:24,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:27,023 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 03:41:27,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:27,024 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:27,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51014035] [2022-11-03 03:41:27,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51014035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:27,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:27,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 03:41:27,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032836348] [2022-11-03 03:41:27,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:27,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 03:41:27,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:27,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 03:41:27,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:41:27,029 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 03:41:28,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:28,082 INFO L93 Difference]: Finished difference Result 2125 states and 2973 transitions. [2022-11-03 03:41:28,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:41:28,082 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 03:41:28,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:28,084 INFO L225 Difference]: With dead ends: 2125 [2022-11-03 03:41:28,084 INFO L226 Difference]: Without dead ends: 1658 [2022-11-03 03:41:28,085 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 03:41:28,086 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 2139 mSDsluCounter, 4504 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 5187 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:28,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 5187 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 31 Unchecked, 0.7s Time] [2022-11-03 03:41:28,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2022-11-03 03:41:28,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 705. [2022-11-03 03:41:28,106 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 03:41:28,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 968 transitions. [2022-11-03 03:41:28,107 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 968 transitions. Word has length 185 [2022-11-03 03:41:28,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:28,108 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 968 transitions. [2022-11-03 03:41:28,108 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 03:41:28,108 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 968 transitions. [2022-11-03 03:41:28,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:41:28,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:28,110 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 03:41:28,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:28,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:28,323 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:28,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:28,323 INFO L85 PathProgramCache]: Analyzing trace with hash 446802797, now seen corresponding path program 1 times [2022-11-03 03:41:28,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:28,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056406720] [2022-11-03 03:41:28,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:28,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:28,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:28,326 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:28,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-03 03:41:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:29,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 03:41:29,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:33,196 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 03:41:33,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:33,197 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:33,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056406720] [2022-11-03 03:41:33,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056406720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:33,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:33,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 03:41:33,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698257928] [2022-11-03 03:41:33,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:33,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 03:41:33,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:33,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 03:41:33,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:41:33,199 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 03:41:34,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:34,256 INFO L93 Difference]: Finished difference Result 2125 states and 2972 transitions. [2022-11-03 03:41:34,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:41:34,257 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 03:41:34,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:34,258 INFO L225 Difference]: With dead ends: 2125 [2022-11-03 03:41:34,258 INFO L226 Difference]: Without dead ends: 1658 [2022-11-03 03:41:34,259 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 03:41:34,259 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 2133 mSDsluCounter, 4454 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 5138 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:34,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 5138 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 225 Invalid, 0 Unknown, 73 Unchecked, 0.7s Time] [2022-11-03 03:41:34,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2022-11-03 03:41:34,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 707. [2022-11-03 03:41:34,282 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 03:41:34,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 970 transitions. [2022-11-03 03:41:34,283 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 970 transitions. Word has length 185 [2022-11-03 03:41:34,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:34,283 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 970 transitions. [2022-11-03 03:41:34,283 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 03:41:34,284 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 970 transitions. [2022-11-03 03:41:34,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:41:34,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:34,284 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 03:41:34,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (43)] Ended with exit code 0 [2022-11-03 03:41:34,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:34,485 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:34,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1985142827, now seen corresponding path program 1 times [2022-11-03 03:41:34,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:34,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044421842] [2022-11-03 03:41:34,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:34,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:34,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:34,488 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:34,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-03 03:41:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:35,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-03 03:41:35,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:41,118 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 03:41:41,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:41,118 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:41,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044421842] [2022-11-03 03:41:41,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044421842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:41,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:41,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:41:41,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777573507] [2022-11-03 03:41:41,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:41,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:41:41,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:41,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:41:41,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:41:41,121 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 03:41:42,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:42,198 INFO L93 Difference]: Finished difference Result 1665 states and 2323 transitions. [2022-11-03 03:41:42,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:41:42,199 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 03:41:42,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:42,200 INFO L225 Difference]: With dead ends: 1665 [2022-11-03 03:41:42,200 INFO L226 Difference]: Without dead ends: 1198 [2022-11-03 03:41:42,200 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 03:41:42,201 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 1130 mSDsluCounter, 3490 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 4176 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:42,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 4176 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 26 Unchecked, 0.7s Time] [2022-11-03 03:41:42,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-03 03:41:42,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 709. [2022-11-03 03:41:42,214 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 03:41:42,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 972 transitions. [2022-11-03 03:41:42,215 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 972 transitions. Word has length 185 [2022-11-03 03:41:42,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:42,215 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 972 transitions. [2022-11-03 03:41:42,216 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 03:41:42,216 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 972 transitions. [2022-11-03 03:41:42,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:41:42,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:42,217 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 03:41:42,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:42,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:42,418 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:42,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:42,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1504062569, now seen corresponding path program 1 times [2022-11-03 03:41:42,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:42,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727443034] [2022-11-03 03:41:42,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:42,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:42,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:42,421 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:42,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-03 03:41:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:43,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-03 03:41:43,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:48,421 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 03:41:48,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:48,422 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:48,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727443034] [2022-11-03 03:41:48,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727443034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:48,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:48,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:41:48,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059277076] [2022-11-03 03:41:48,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:48,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:41:48,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:48,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:41:48,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:41:48,424 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 03:41:49,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:49,399 INFO L93 Difference]: Finished difference Result 1665 states and 2322 transitions. [2022-11-03 03:41:49,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:41:49,400 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 03:41:49,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:49,401 INFO L225 Difference]: With dead ends: 1665 [2022-11-03 03:41:49,401 INFO L226 Difference]: Without dead ends: 1198 [2022-11-03 03:41:49,402 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 03:41:49,402 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, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:49,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 4210 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 21 Unchecked, 0.6s Time] [2022-11-03 03:41:49,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-03 03:41:49,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 711. [2022-11-03 03:41:49,416 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 03:41:49,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 974 transitions. [2022-11-03 03:41:49,416 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 974 transitions. Word has length 185 [2022-11-03 03:41:49,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:49,417 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 974 transitions. [2022-11-03 03:41:49,417 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 03:41:49,417 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 974 transitions. [2022-11-03 03:41:49,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:41:49,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:49,418 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 03:41:49,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:49,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:49,642 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:49,643 INFO L85 PathProgramCache]: Analyzing trace with hash -851742681, now seen corresponding path program 1 times [2022-11-03 03:41:49,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:49,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766670930] [2022-11-03 03:41:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:49,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:49,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:49,645 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:49,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-03 03:41:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:50,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-03 03:41:50,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:57,158 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 03:41:57,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:41:57,159 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:41:57,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766670930] [2022-11-03 03:41:57,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766670930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:57,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:57,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 03:41:57,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045054759] [2022-11-03 03:41:57,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:57,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 03:41:57,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:41:57,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 03:41:57,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:41:57,160 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 03:41:58,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:58,300 INFO L93 Difference]: Finished difference Result 2127 states and 2972 transitions. [2022-11-03 03:41:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 03:41:58,306 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 03:41:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:58,308 INFO L225 Difference]: With dead ends: 2127 [2022-11-03 03:41:58,308 INFO L226 Difference]: Without dead ends: 1660 [2022-11-03 03:41:58,309 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 03:41:58,310 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, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:58,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2126 Valid, 5141 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 50 Unchecked, 0.7s Time] [2022-11-03 03:41:58,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-11-03 03:41:58,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 713. [2022-11-03 03:41:58,332 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 03:41:58,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 976 transitions. [2022-11-03 03:41:58,333 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 976 transitions. Word has length 185 [2022-11-03 03:41:58,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:58,333 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 976 transitions. [2022-11-03 03:41:58,334 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 03:41:58,334 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 976 transitions. [2022-11-03 03:41:58,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:41:58,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:58,335 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 03:41:58,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:58,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:41:58,549 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:58,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:58,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1076530021, now seen corresponding path program 1 times [2022-11-03 03:41:58,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:41:58,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436588388] [2022-11-03 03:41:58,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:58,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:41:58,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:41:58,552 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:41:58,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-03 03:41:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:59,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-03 03:41:59,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:04,064 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 03:42:04,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:04,064 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:04,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436588388] [2022-11-03 03:42:04,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436588388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:04,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:04,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 03:42:04,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431673488] [2022-11-03 03:42:04,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:04,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 03:42:04,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:04,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 03:42:04,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:42:04,066 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 03:42:05,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:05,145 INFO L93 Difference]: Finished difference Result 2125 states and 2968 transitions. [2022-11-03 03:42:05,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:42:05,146 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 03:42:05,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:05,147 INFO L225 Difference]: With dead ends: 2125 [2022-11-03 03:42:05,147 INFO L226 Difference]: Without dead ends: 1658 [2022-11-03 03:42:05,148 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 03:42:05,148 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 2109 mSDsluCounter, 4561 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 5259 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:05,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 5259 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 71 Unchecked, 0.7s Time] [2022-11-03 03:42:05,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2022-11-03 03:42:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 715. [2022-11-03 03:42:05,165 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 03:42:05,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 978 transitions. [2022-11-03 03:42:05,166 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 978 transitions. Word has length 185 [2022-11-03 03:42:05,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:05,167 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 978 transitions. [2022-11-03 03:42:05,167 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 03:42:05,167 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 978 transitions. [2022-11-03 03:42:05,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:42:05,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:05,168 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 03:42:05,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:05,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:05,368 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:05,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:05,369 INFO L85 PathProgramCache]: Analyzing trace with hash -972857821, now seen corresponding path program 1 times [2022-11-03 03:42:05,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:05,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797330453] [2022-11-03 03:42:05,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:05,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:05,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:05,371 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:05,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-03 03:42:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:06,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 140 conjunts are in the unsatisfiable core [2022-11-03 03:42:06,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:19,533 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 03:42:19,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:19,534 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:19,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797330453] [2022-11-03 03:42:19,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797330453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:19,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:19,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:42:19,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306903321] [2022-11-03 03:42:19,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:19,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:42:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:42:19,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:42:19,536 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 03:42:22,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:22,006 INFO L93 Difference]: Finished difference Result 2110 states and 2950 transitions. [2022-11-03 03:42:22,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 03:42:22,007 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 03:42:22,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:22,008 INFO L225 Difference]: With dead ends: 2110 [2022-11-03 03:42:22,008 INFO L226 Difference]: Without dead ends: 1643 [2022-11-03 03:42:22,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-03 03:42:22,009 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 4363 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:22,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4363 Valid, 4064 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 03:42:22,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-11-03 03:42:22,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 733. [2022-11-03 03:42:22,025 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 03:42:22,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1004 transitions. [2022-11-03 03:42:22,025 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1004 transitions. Word has length 185 [2022-11-03 03:42:22,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:22,026 INFO L495 AbstractCegarLoop]: Abstraction has 733 states and 1004 transitions. [2022-11-03 03:42:22,026 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 03:42:22,026 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1004 transitions. [2022-11-03 03:42:22,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:42:22,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:22,027 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 03:42:22,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:22,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:22,228 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:22,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:22,228 INFO L85 PathProgramCache]: Analyzing trace with hash -724711327, now seen corresponding path program 1 times [2022-11-03 03:42:22,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:22,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895936285] [2022-11-03 03:42:22,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:22,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:22,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:22,230 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:22,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-03 03:42:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:22,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 03:42:22,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:23,185 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 03:42:23,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:23,185 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:23,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895936285] [2022-11-03 03:42:23,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895936285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:23,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:23,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:42:23,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303084784] [2022-11-03 03:42:23,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:23,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:42:23,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:23,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:42:23,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:42:23,186 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 03:42:23,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:23,359 INFO L93 Difference]: Finished difference Result 1941 states and 2727 transitions. [2022-11-03 03:42:23,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:42:23,361 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 03:42:23,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:23,362 INFO L225 Difference]: With dead ends: 1941 [2022-11-03 03:42:23,362 INFO L226 Difference]: Without dead ends: 1456 [2022-11-03 03:42:23,362 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 03:42:23,363 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 03:42:23,363 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 03:42:23,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2022-11-03 03:42:23,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 783. [2022-11-03 03:42:23,377 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 03:42:23,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1077 transitions. [2022-11-03 03:42:23,378 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1077 transitions. Word has length 185 [2022-11-03 03:42:23,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:23,378 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 1077 transitions. [2022-11-03 03:42:23,378 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 03:42:23,378 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1077 transitions. [2022-11-03 03:42:23,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:42:23,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:23,379 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 03:42:23,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:23,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:23,602 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:23,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:23,602 INFO L85 PathProgramCache]: Analyzing trace with hash -449951713, now seen corresponding path program 1 times [2022-11-03 03:42:23,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:23,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462274546] [2022-11-03 03:42:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:23,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:23,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:23,605 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:23,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-11-03 03:42:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:24,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:42:24,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:24,464 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 03:42:24,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:24,465 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:24,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462274546] [2022-11-03 03:42:24,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462274546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:24,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:24,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:42:24,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895467736] [2022-11-03 03:42:24,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:24,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:42:24,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:24,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:42:24,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:42:24,466 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 03:42:24,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:24,581 INFO L93 Difference]: Finished difference Result 2372 states and 3309 transitions. [2022-11-03 03:42:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:42:24,582 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 03:42:24,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:24,583 INFO L225 Difference]: With dead ends: 2372 [2022-11-03 03:42:24,583 INFO L226 Difference]: Without dead ends: 1887 [2022-11-03 03:42:24,584 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 03:42:24,584 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 2432 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:24,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2432 Valid, 2729 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:42:24,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2022-11-03 03:42:24,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 937. [2022-11-03 03:42:24,602 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 03:42:24,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1285 transitions. [2022-11-03 03:42:24,604 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1285 transitions. Word has length 185 [2022-11-03 03:42:24,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:24,604 INFO L495 AbstractCegarLoop]: Abstraction has 937 states and 1285 transitions. [2022-11-03 03:42:24,604 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 03:42:24,605 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1285 transitions. [2022-11-03 03:42:24,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:42:24,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:24,606 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 03:42:24,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (50)] Ended with exit code 0 [2022-11-03 03:42:24,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:24,829 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:24,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:24,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1850870877, now seen corresponding path program 1 times [2022-11-03 03:42:24,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:24,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899620414] [2022-11-03 03:42:24,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:24,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:24,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:24,833 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:24,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-03 03:42:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:25,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 03:42:25,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:25,878 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 03:42:25,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:25,878 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:25,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899620414] [2022-11-03 03:42:25,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899620414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:25,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:25,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:42:25,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159499412] [2022-11-03 03:42:25,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:25,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:42:25,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:25,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:42:25,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:42:25,880 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 03:42:26,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:26,049 INFO L93 Difference]: Finished difference Result 2277 states and 3190 transitions. [2022-11-03 03:42:26,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:42:26,050 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 03:42:26,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:26,052 INFO L225 Difference]: With dead ends: 2277 [2022-11-03 03:42:26,052 INFO L226 Difference]: Without dead ends: 1708 [2022-11-03 03:42:26,052 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 03:42:26,053 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1100 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:26,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 1998 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:42:26,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2022-11-03 03:42:26,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 967. [2022-11-03 03:42:26,067 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 03:42:26,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1328 transitions. [2022-11-03 03:42:26,068 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1328 transitions. Word has length 185 [2022-11-03 03:42:26,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:26,068 INFO L495 AbstractCegarLoop]: Abstraction has 967 states and 1328 transitions. [2022-11-03 03:42:26,069 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 03:42:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1328 transitions. [2022-11-03 03:42:26,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-03 03:42:26,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:26,070 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 03:42:26,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Ended with exit code 0 [2022-11-03 03:42:26,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:26,275 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:26,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:26,275 INFO L85 PathProgramCache]: Analyzing trace with hash 829802523, now seen corresponding path program 1 times [2022-11-03 03:42:26,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:26,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171026955] [2022-11-03 03:42:26,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:26,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:26,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:26,277 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:26,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-11-03 03:42:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:27,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-03 03:42:27,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:27,699 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 03:42:27,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:27,700 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:27,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171026955] [2022-11-03 03:42:27,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171026955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:27,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:27,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:42:27,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301123789] [2022-11-03 03:42:27,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:27,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:42:27,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:27,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:42:27,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:42:27,701 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 03:42:28,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:28,146 INFO L93 Difference]: Finished difference Result 1549 states and 2150 transitions. [2022-11-03 03:42:28,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:42:28,147 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 03:42:28,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:28,148 INFO L225 Difference]: With dead ends: 1549 [2022-11-03 03:42:28,149 INFO L226 Difference]: Without dead ends: 1547 [2022-11-03 03:42:28,149 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 03:42:28,149 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 03:42:28,149 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 03:42:28,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2022-11-03 03:42:28,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 981. [2022-11-03 03:42:28,163 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 03:42:28,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1348 transitions. [2022-11-03 03:42:28,164 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1348 transitions. Word has length 185 [2022-11-03 03:42:28,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:28,164 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1348 transitions. [2022-11-03 03:42:28,164 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 03:42:28,164 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1348 transitions. [2022-11-03 03:42:28,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:28,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:28,169 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 03:42:28,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:28,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:28,383 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:28,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:28,383 INFO L85 PathProgramCache]: Analyzing trace with hash -815409033, now seen corresponding path program 1 times [2022-11-03 03:42:28,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:28,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752974577] [2022-11-03 03:42:28,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:28,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:28,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:28,386 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:28,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-03 03:42:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:29,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:42:29,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:30,042 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 03:42:30,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:30,043 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:30,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752974577] [2022-11-03 03:42:30,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752974577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:30,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:30,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:42:30,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509781552] [2022-11-03 03:42:30,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:30,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:42:30,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:30,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:42:30,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:42:30,045 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 03:42:30,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:30,266 INFO L93 Difference]: Finished difference Result 1559 states and 2164 transitions. [2022-11-03 03:42:30,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:42:30,267 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 03:42:30,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:30,268 INFO L225 Difference]: With dead ends: 1559 [2022-11-03 03:42:30,268 INFO L226 Difference]: Without dead ends: 990 [2022-11-03 03:42:30,268 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 03:42:30,269 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 03:42:30,269 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 03:42:30,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-11-03 03:42:30,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 981. [2022-11-03 03:42:30,291 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 03:42:30,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1347 transitions. [2022-11-03 03:42:30,293 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1347 transitions. Word has length 524 [2022-11-03 03:42:30,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:30,293 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1347 transitions. [2022-11-03 03:42:30,294 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 03:42:30,294 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1347 transitions. [2022-11-03 03:42:30,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:30,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:30,298 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 03:42:30,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Ended with exit code 0 [2022-11-03 03:42:30,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:30,523 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:30,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:30,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1844580871, now seen corresponding path program 1 times [2022-11-03 03:42:30,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:30,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368206749] [2022-11-03 03:42:30,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:30,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:30,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:30,526 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:30,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-11-03 03:42:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:31,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:42:31,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:32,163 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 03:42:32,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:32,163 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:32,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368206749] [2022-11-03 03:42:32,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368206749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:32,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:32,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:42:32,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379352386] [2022-11-03 03:42:32,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:32,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:42:32,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:32,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:42:32,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:42:32,166 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 03:42:32,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:32,377 INFO L93 Difference]: Finished difference Result 1563 states and 2167 transitions. [2022-11-03 03:42:32,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:42:32,378 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 03:42:32,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:32,379 INFO L225 Difference]: With dead ends: 1563 [2022-11-03 03:42:32,379 INFO L226 Difference]: Without dead ends: 994 [2022-11-03 03:42:32,379 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 03:42:32,380 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 03:42:32,380 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 03:42:32,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2022-11-03 03:42:32,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 981. [2022-11-03 03:42:32,401 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 03:42:32,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1346 transitions. [2022-11-03 03:42:32,402 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1346 transitions. Word has length 524 [2022-11-03 03:42:32,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:32,403 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1346 transitions. [2022-11-03 03:42:32,403 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 03:42:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1346 transitions. [2022-11-03 03:42:32,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:32,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:32,407 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 03:42:32,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:32,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:32,631 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:32,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:32,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1349446533, now seen corresponding path program 1 times [2022-11-03 03:42:32,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:32,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475842890] [2022-11-03 03:42:32,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:32,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:32,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:32,636 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:32,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-03 03:42:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:34,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:42:34,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:34,634 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 03:42:34,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:34,635 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:34,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475842890] [2022-11-03 03:42:34,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475842890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:34,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:34,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:42:34,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677598542] [2022-11-03 03:42:34,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:34,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:42:34,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:34,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:42:34,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:42:34,636 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 03:42:35,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:35,145 INFO L93 Difference]: Finished difference Result 2134 states and 2968 transitions. [2022-11-03 03:42:35,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:42:35,146 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 03:42:35,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:35,147 INFO L225 Difference]: With dead ends: 2134 [2022-11-03 03:42:35,147 INFO L226 Difference]: Without dead ends: 1565 [2022-11-03 03:42:35,148 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 03:42:35,148 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, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:35,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 2215 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 03:42:35,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-11-03 03:42:35,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 997. [2022-11-03 03:42:35,162 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 03:42:35,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1367 transitions. [2022-11-03 03:42:35,163 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1367 transitions. Word has length 524 [2022-11-03 03:42:35,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:35,163 INFO L495 AbstractCegarLoop]: Abstraction has 997 states and 1367 transitions. [2022-11-03 03:42:35,163 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 03:42:35,163 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1367 transitions. [2022-11-03 03:42:35,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:35,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:35,166 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 03:42:35,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Ended with exit code 0 [2022-11-03 03:42:35,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:35,377 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:35,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:35,378 INFO L85 PathProgramCache]: Analyzing trace with hash 500315513, now seen corresponding path program 1 times [2022-11-03 03:42:35,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:35,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122979648] [2022-11-03 03:42:35,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:35,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:35,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:35,382 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:35,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-11-03 03:42:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:36,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:42:36,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:37,021 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 03:42:37,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:37,021 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:37,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122979648] [2022-11-03 03:42:37,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122979648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:37,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:37,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:42:37,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421767930] [2022-11-03 03:42:37,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:37,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:42:37,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:37,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:42:37,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:42:37,023 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 03:42:37,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:37,243 INFO L93 Difference]: Finished difference Result 1575 states and 2181 transitions. [2022-11-03 03:42:37,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:42:37,244 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 03:42:37,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:37,245 INFO L225 Difference]: With dead ends: 1575 [2022-11-03 03:42:37,245 INFO L226 Difference]: Without dead ends: 1006 [2022-11-03 03:42:37,246 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 03:42:37,246 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 03:42:37,246 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 03:42:37,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2022-11-03 03:42:37,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 997. [2022-11-03 03:42:37,259 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 03:42:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1366 transitions. [2022-11-03 03:42:37,260 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1366 transitions. Word has length 524 [2022-11-03 03:42:37,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:37,260 INFO L495 AbstractCegarLoop]: Abstraction has 997 states and 1366 transitions. [2022-11-03 03:42:37,260 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 03:42:37,260 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1366 transitions. [2022-11-03 03:42:37,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:37,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:37,264 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 03:42:37,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:37,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:37,464 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:37,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:37,465 INFO L85 PathProgramCache]: Analyzing trace with hash 705269499, now seen corresponding path program 1 times [2022-11-03 03:42:37,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:37,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800026293] [2022-11-03 03:42:37,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:37,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:37,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:37,468 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:37,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-03 03:42:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:38,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 03:42:38,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:42,061 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 03:42:42,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:42,062 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:42,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800026293] [2022-11-03 03:42:42,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800026293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:42,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:42,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 03:42:42,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324721180] [2022-11-03 03:42:42,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:42,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 03:42:42,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:42,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 03:42:42,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:42:42,064 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 03:42:42,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:42,294 INFO L93 Difference]: Finished difference Result 2468 states and 3411 transitions. [2022-11-03 03:42:42,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 03:42:42,295 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 03:42:42,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:42,297 INFO L225 Difference]: With dead ends: 2468 [2022-11-03 03:42:42,297 INFO L226 Difference]: Without dead ends: 1899 [2022-11-03 03:42:42,298 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 03:42:42,298 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 1787 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 3570 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 03:42:42,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 3570 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 60 Unchecked, 0.2s Time] [2022-11-03 03:42:42,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2022-11-03 03:42:42,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1233. [2022-11-03 03:42:42,325 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 03:42:42,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1680 transitions. [2022-11-03 03:42:42,327 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1680 transitions. Word has length 524 [2022-11-03 03:42:42,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:42,327 INFO L495 AbstractCegarLoop]: Abstraction has 1233 states and 1680 transitions. [2022-11-03 03:42:42,327 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 03:42:42,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1680 transitions. [2022-11-03 03:42:42,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:42,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:42,332 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 03:42:42,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:42,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:42,555 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:42,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:42,555 INFO L85 PathProgramCache]: Analyzing trace with hash 588952061, now seen corresponding path program 1 times [2022-11-03 03:42:42,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:42,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874413130] [2022-11-03 03:42:42,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:42,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:42,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:42,559 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:42,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2022-11-03 03:42:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:43,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:42:43,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:44,217 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 03:42:44,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:44,217 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:44,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874413130] [2022-11-03 03:42:44,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874413130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:44,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:44,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:42:44,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136403847] [2022-11-03 03:42:44,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:44,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:42:44,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:44,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:42:44,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:42:44,219 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 03:42:44,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:44,444 INFO L93 Difference]: Finished difference Result 1827 states and 2516 transitions. [2022-11-03 03:42:44,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:42:44,444 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 03:42:44,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:44,446 INFO L225 Difference]: With dead ends: 1827 [2022-11-03 03:42:44,446 INFO L226 Difference]: Without dead ends: 1258 [2022-11-03 03:42:44,447 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 03:42:44,447 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 03:42:44,448 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 03:42:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-03 03:42:44,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1233. [2022-11-03 03:42:44,471 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 03:42:44,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1679 transitions. [2022-11-03 03:42:44,473 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1679 transitions. Word has length 524 [2022-11-03 03:42:44,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:44,473 INFO L495 AbstractCegarLoop]: Abstraction has 1233 states and 1679 transitions. [2022-11-03 03:42:44,474 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 03:42:44,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1679 transitions. [2022-11-03 03:42:44,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:44,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:44,478 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 03:42:44,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (58)] Ended with exit code 0 [2022-11-03 03:42:44,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:44,691 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:44,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:44,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1743343487, now seen corresponding path program 1 times [2022-11-03 03:42:44,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:44,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80901525] [2022-11-03 03:42:44,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:44,694 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:44,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:44,695 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:44,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-03 03:42:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:46,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:42:46,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:46,518 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 03:42:46,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:46,519 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:46,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80901525] [2022-11-03 03:42:46,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80901525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:46,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:46,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:42:46,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001796993] [2022-11-03 03:42:46,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:46,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:42:46,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:46,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:42:46,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:42:46,522 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 03:42:46,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:46,864 INFO L93 Difference]: Finished difference Result 1874 states and 2576 transitions. [2022-11-03 03:42:46,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:42:46,865 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 03:42:46,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:46,866 INFO L225 Difference]: With dead ends: 1874 [2022-11-03 03:42:46,866 INFO L226 Difference]: Without dead ends: 1305 [2022-11-03 03:42:46,867 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 03:42:46,867 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 144 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:46,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2505 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 50 Unchecked, 0.3s Time] [2022-11-03 03:42:46,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-11-03 03:42:46,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2022-11-03 03:42:46,883 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 03:42:46,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1776 transitions. [2022-11-03 03:42:46,884 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1776 transitions. Word has length 524 [2022-11-03 03:42:46,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:46,884 INFO L495 AbstractCegarLoop]: Abstraction has 1305 states and 1776 transitions. [2022-11-03 03:42:46,884 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 03:42:46,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1776 transitions. [2022-11-03 03:42:46,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:46,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:46,887 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 03:42:46,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Ended with exit code 0 [2022-11-03 03:42:47,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:47,087 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:47,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:47,088 INFO L85 PathProgramCache]: Analyzing trace with hash 847112317, now seen corresponding path program 1 times [2022-11-03 03:42:47,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:47,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938104470] [2022-11-03 03:42:47,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:47,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:47,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:47,091 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:47,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-11-03 03:42:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:48,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:42:48,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:48,776 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 03:42:48,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:48,776 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:48,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938104470] [2022-11-03 03:42:48,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938104470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:48,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:48,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:42:48,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766086012] [2022-11-03 03:42:48,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:48,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:42:48,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:48,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:42:48,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:42:48,779 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 03:42:49,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:49,061 INFO L93 Difference]: Finished difference Result 1911 states and 2628 transitions. [2022-11-03 03:42:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:42:49,063 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 03:42:49,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:49,064 INFO L225 Difference]: With dead ends: 1911 [2022-11-03 03:42:49,064 INFO L226 Difference]: Without dead ends: 1342 [2022-11-03 03:42:49,064 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 03:42:49,065 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:49,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1093 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:42:49,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-11-03 03:42:49,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1305. [2022-11-03 03:42:49,088 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 03:42:49,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1775 transitions. [2022-11-03 03:42:49,090 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1775 transitions. Word has length 524 [2022-11-03 03:42:49,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:49,091 INFO L495 AbstractCegarLoop]: Abstraction has 1305 states and 1775 transitions. [2022-11-03 03:42:49,091 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 03:42:49,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1775 transitions. [2022-11-03 03:42:49,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:49,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:49,095 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 03:42:49,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (60)] Ended with exit code 0 [2022-11-03 03:42:49,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:49,323 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:49,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:49,323 INFO L85 PathProgramCache]: Analyzing trace with hash 440088831, now seen corresponding path program 1 times [2022-11-03 03:42:49,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:49,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975572072] [2022-11-03 03:42:49,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:49,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:49,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:49,327 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:49,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-03 03:42:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:50,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 03:42:50,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:50,993 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 03:42:50,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:50,993 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:50,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975572072] [2022-11-03 03:42:50,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975572072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:50,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:50,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:42:50,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976385141] [2022-11-03 03:42:50,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:50,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:42:50,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:50,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:42:50,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:42:50,995 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 03:42:51,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:51,172 INFO L93 Difference]: Finished difference Result 2583 states and 3577 transitions. [2022-11-03 03:42:51,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:42:51,173 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 03:42:51,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:51,174 INFO L225 Difference]: With dead ends: 2583 [2022-11-03 03:42:51,174 INFO L226 Difference]: Without dead ends: 2014 [2022-11-03 03:42:51,175 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 03:42:51,175 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:51,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1974 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:42:51,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2022-11-03 03:42:51,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1347. [2022-11-03 03:42:51,192 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 03:42:51,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1834 transitions. [2022-11-03 03:42:51,193 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1834 transitions. Word has length 524 [2022-11-03 03:42:51,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:51,193 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 1834 transitions. [2022-11-03 03:42:51,193 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 03:42:51,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1834 transitions. [2022-11-03 03:42:51,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:51,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:51,196 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 03:42:51,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Ended with exit code 0 [2022-11-03 03:42:51,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:51,397 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:51,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:51,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1767302527, now seen corresponding path program 1 times [2022-11-03 03:42:51,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:51,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27091450] [2022-11-03 03:42:51,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:51,400 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:51,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:51,401 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:51,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-11-03 03:42:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:52,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:42:52,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:53,626 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 03:42:53,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:53,626 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:53,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27091450] [2022-11-03 03:42:53,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27091450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:53,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:53,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:42:53,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498226884] [2022-11-03 03:42:53,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:53,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:42:53,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:53,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:42:53,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:42:53,628 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 03:42:53,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:53,703 INFO L93 Difference]: Finished difference Result 2644 states and 3605 transitions. [2022-11-03 03:42:53,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:42:53,707 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 03:42:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:53,709 INFO L225 Difference]: With dead ends: 2644 [2022-11-03 03:42:53,709 INFO L226 Difference]: Without dead ends: 2075 [2022-11-03 03:42:53,710 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 03:42:53,710 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 319 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 2911 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 47 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:53,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 2911 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 47 Unchecked, 0.0s Time] [2022-11-03 03:42:53,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2022-11-03 03:42:53,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 2075. [2022-11-03 03:42:53,728 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 03:42:53,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2806 transitions. [2022-11-03 03:42:53,730 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2806 transitions. Word has length 524 [2022-11-03 03:42:53,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:53,730 INFO L495 AbstractCegarLoop]: Abstraction has 2075 states and 2806 transitions. [2022-11-03 03:42:53,730 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 03:42:53,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2806 transitions. [2022-11-03 03:42:53,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:53,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:53,733 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 03:42:53,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:53,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:53,934 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:53,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:53,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1130747905, now seen corresponding path program 1 times [2022-11-03 03:42:53,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:53,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269317888] [2022-11-03 03:42:53,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:53,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:53,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:53,938 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:53,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-03 03:42:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:55,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-03 03:42:55,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:58,243 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 03:42:58,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:42:58,244 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:42:58,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269317888] [2022-11-03 03:42:58,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269317888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:58,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:58,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:42:58,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094415978] [2022-11-03 03:42:58,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:58,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:42:58,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:58,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:42:58,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:42:58,246 INFO L87 Difference]: Start difference. First operand 2075 states and 2806 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 03:42:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:59,284 INFO L93 Difference]: Finished difference Result 4324 states and 5952 transitions. [2022-11-03 03:42:59,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 03:42:59,285 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 03:42:59,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:59,287 INFO L225 Difference]: With dead ends: 4324 [2022-11-03 03:42:59,287 INFO L226 Difference]: Without dead ends: 3755 [2022-11-03 03:42:59,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 518 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 03:42:59,289 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 3765 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3765 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:59,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3765 Valid, 3270 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 03:42:59,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2022-11-03 03:42:59,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 2787. [2022-11-03 03:42:59,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 1.3639626704953338) internal successors, (3800), 2786 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:42:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3800 transitions. [2022-11-03 03:42:59,317 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3800 transitions. Word has length 524 [2022-11-03 03:42:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:59,317 INFO L495 AbstractCegarLoop]: Abstraction has 2787 states and 3800 transitions. [2022-11-03 03:42:59,317 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 03:42:59,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3800 transitions. [2022-11-03 03:42:59,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:42:59,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:59,321 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 03:42:59,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:59,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:42:59,535 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:59,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:59,535 INFO L85 PathProgramCache]: Analyzing trace with hash 325571329, now seen corresponding path program 1 times [2022-11-03 03:42:59,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:42:59,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944557236] [2022-11-03 03:42:59,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:59,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:42:59,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:42:59,539 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:42:59,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2022-11-03 03:43:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:00,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 232 conjunts are in the unsatisfiable core [2022-11-03 03:43:00,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:43:26,953 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 03:43:26,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:43:26,953 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:43:26,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944557236] [2022-11-03 03:43:26,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944557236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:26,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:26,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:43:26,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254034549] [2022-11-03 03:43:26,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:26,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 03:43:26,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:43:26,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 03:43:26,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:43:26,956 INFO L87 Difference]: Start difference. First operand 2787 states and 3800 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 03:43:28,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:28,343 INFO L93 Difference]: Finished difference Result 5324 states and 7231 transitions. [2022-11-03 03:43:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 03:43:28,352 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 03:43:28,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:28,356 INFO L225 Difference]: With dead ends: 5324 [2022-11-03 03:43:28,356 INFO L226 Difference]: Without dead ends: 4627 [2022-11-03 03:43:28,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2022-11-03 03:43:28,358 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 1953 mSDsluCounter, 6974 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 7527 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 295 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:28,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 7527 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 0 Unknown, 295 Unchecked, 0.4s Time] [2022-11-03 03:43:28,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4627 states. [2022-11-03 03:43:28,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4627 to 3821. [2022-11-03 03:43:28,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3821 states, 3820 states have (on average 1.3392670157068063) internal successors, (5116), 3820 states have internal predecessors, (5116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:43:28,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3821 states to 3821 states and 5116 transitions. [2022-11-03 03:43:28,439 INFO L78 Accepts]: Start accepts. Automaton has 3821 states and 5116 transitions. Word has length 524 [2022-11-03 03:43:28,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:28,439 INFO L495 AbstractCegarLoop]: Abstraction has 3821 states and 5116 transitions. [2022-11-03 03:43:28,440 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 03:43:28,440 INFO L276 IsEmpty]: Start isEmpty. Operand 3821 states and 5116 transitions. [2022-11-03 03:43:28,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:43:28,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:28,447 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 03:43:28,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (64)] Ended with exit code 0 [2022-11-03 03:43:28,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:43:28,669 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:28,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:28,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1774760189, now seen corresponding path program 1 times [2022-11-03 03:43:28,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:43:28,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475851950] [2022-11-03 03:43:28,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:28,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:43:28,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:43:28,676 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:43:28,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-03 03:43:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:30,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 246 conjunts are in the unsatisfiable core [2022-11-03 03:43:30,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:43:58,265 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 03:43:58,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:43:58,265 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:43:58,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475851950] [2022-11-03 03:43:58,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475851950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:58,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:58,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 03:43:58,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712259199] [2022-11-03 03:43:58,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:58,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 03:43:58,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:43:58,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 03:43:58,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:43:58,268 INFO L87 Difference]: Start difference. First operand 3821 states and 5116 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 03:44:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:02,646 INFO L93 Difference]: Finished difference Result 9175 states and 12572 transitions. [2022-11-03 03:44:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 03:44:02,647 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 03:44:02,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:02,654 INFO L225 Difference]: With dead ends: 9175 [2022-11-03 03:44:02,654 INFO L226 Difference]: Without dead ends: 8478 [2022-11-03 03:44:02,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2022-11-03 03:44:02,656 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 8746 mSDsluCounter, 9842 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8746 SdHoareTripleChecker+Valid, 10672 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 127 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:02,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8746 Valid, 10672 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 584 Invalid, 0 Unknown, 127 Unchecked, 1.7s Time] [2022-11-03 03:44:02,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2022-11-03 03:44:02,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 3823. [2022-11-03 03:44:02,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3823 states, 3822 states have (on average 1.3390894819466248) internal successors, (5118), 3822 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:02,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 5118 transitions. [2022-11-03 03:44:02,732 INFO L78 Accepts]: Start accepts. Automaton has 3823 states and 5118 transitions. Word has length 524 [2022-11-03 03:44:02,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:02,733 INFO L495 AbstractCegarLoop]: Abstraction has 3823 states and 5118 transitions. [2022-11-03 03:44:02,733 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 03:44:02,733 INFO L276 IsEmpty]: Start isEmpty. Operand 3823 states and 5118 transitions. [2022-11-03 03:44:02,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:02,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:02,740 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 03:44:02,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:02,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:02,953 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:02,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:02,954 INFO L85 PathProgramCache]: Analyzing trace with hash -681974907, now seen corresponding path program 1 times [2022-11-03 03:44:02,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:02,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983907005] [2022-11-03 03:44:02,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:02,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:02,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:02,957 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:02,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-11-03 03:44:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:04,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-03 03:44:04,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:12,717 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 03:44:12,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:12,717 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:12,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983907005] [2022-11-03 03:44:12,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983907005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:12,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:12,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-03 03:44:12,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072987464] [2022-11-03 03:44:12,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:12,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-03 03:44:12,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:12,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-03 03:44:12,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 03:44:12,719 INFO L87 Difference]: Start difference. First operand 3823 states and 5118 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 03:44:12,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:12,950 INFO L93 Difference]: Finished difference Result 6338 states and 8539 transitions. [2022-11-03 03:44:12,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-03 03:44:12,951 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 03:44:12,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:12,955 INFO L225 Difference]: With dead ends: 6338 [2022-11-03 03:44:12,955 INFO L226 Difference]: Without dead ends: 5641 [2022-11-03 03:44:12,957 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 03:44:12,957 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 687 mSDsluCounter, 11234 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 11846 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 493 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:12,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 11846 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 493 Unchecked, 0.2s Time] [2022-11-03 03:44:12,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5641 states. [2022-11-03 03:44:13,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5641 to 5339. [2022-11-03 03:44:13,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 1.3375796178343948) internal successors, (7140), 5338 states have internal predecessors, (7140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 7140 transitions. [2022-11-03 03:44:13,038 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 7140 transitions. Word has length 524 [2022-11-03 03:44:13,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:13,038 INFO L495 AbstractCegarLoop]: Abstraction has 5339 states and 7140 transitions. [2022-11-03 03:44:13,038 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 03:44:13,039 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 7140 transitions. [2022-11-03 03:44:13,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:13,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:13,047 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 03:44:13,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:13,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:13,263 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:13,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:13,263 INFO L85 PathProgramCache]: Analyzing trace with hash 700166279, now seen corresponding path program 1 times [2022-11-03 03:44:13,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:13,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [651515778] [2022-11-03 03:44:13,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:13,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:13,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:13,267 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:13,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-03 03:44:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:14,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-03 03:44:14,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:21,378 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 03:44:21,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:21,379 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:21,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [651515778] [2022-11-03 03:44:21,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [651515778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:21,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:21,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-03 03:44:21,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36354211] [2022-11-03 03:44:21,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:21,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-03 03:44:21,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:21,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-03 03:44:21,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=504, Unknown=0, NotChecked=0, Total=552 [2022-11-03 03:44:21,381 INFO L87 Difference]: Start difference. First operand 5339 states and 7140 transitions. Second operand has 24 states, 24 states have (on average 21.833333333333332) internal successors, (524), 24 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 03:44:21,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:21,751 INFO L93 Difference]: Finished difference Result 7269 states and 9815 transitions. [2022-11-03 03:44:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 03:44:21,751 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 21.833333333333332) internal successors, (524), 24 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 03:44:21,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:21,756 INFO L225 Difference]: With dead ends: 7269 [2022-11-03 03:44:21,756 INFO L226 Difference]: Without dead ends: 6572 [2022-11-03 03:44:21,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2022-11-03 03:44:21,758 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 1067 mSDsluCounter, 12328 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 12942 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 910 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:21,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 12942 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 910 Unchecked, 0.2s Time] [2022-11-03 03:44:21,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6572 states. [2022-11-03 03:44:21,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6572 to 5985. [2022-11-03 03:44:21,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5985 states, 5984 states have (on average 1.3407419786096257) internal successors, (8023), 5984 states have internal predecessors, (8023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:21,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5985 states to 5985 states and 8023 transitions. [2022-11-03 03:44:21,821 INFO L78 Accepts]: Start accepts. Automaton has 5985 states and 8023 transitions. Word has length 524 [2022-11-03 03:44:21,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:21,821 INFO L495 AbstractCegarLoop]: Abstraction has 5985 states and 8023 transitions. [2022-11-03 03:44:21,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 21.833333333333332) internal successors, (524), 24 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 03:44:21,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5985 states and 8023 transitions. [2022-11-03 03:44:21,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:21,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:21,831 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 03:44:21,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:22,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:22,047 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:22,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:22,047 INFO L85 PathProgramCache]: Analyzing trace with hash -321858039, now seen corresponding path program 1 times [2022-11-03 03:44:22,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:22,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341026368] [2022-11-03 03:44:22,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:22,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:22,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:22,051 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:22,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2022-11-03 03:44:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:23,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:44:23,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:24,094 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 03:44:24,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:24,095 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:24,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341026368] [2022-11-03 03:44:24,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341026368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:24,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:24,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:44:24,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801304177] [2022-11-03 03:44:24,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:24,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:44:24,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:24,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:44:24,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:44:24,096 INFO L87 Difference]: Start difference. First operand 5985 states and 8023 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 03:44:24,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:24,177 INFO L93 Difference]: Finished difference Result 8828 states and 11896 transitions. [2022-11-03 03:44:24,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:44:24,178 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 03:44:24,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:24,183 INFO L225 Difference]: With dead ends: 8828 [2022-11-03 03:44:24,183 INFO L226 Difference]: Without dead ends: 8131 [2022-11-03 03:44:24,185 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 03:44:24,186 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 193 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:24,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 2811 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 46 Unchecked, 0.0s Time] [2022-11-03 03:44:24,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8131 states. [2022-11-03 03:44:24,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8131 to 8131. [2022-11-03 03:44:24,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8131 states, 8130 states have (on average 1.342189421894219) internal successors, (10912), 8130 states have internal predecessors, (10912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:24,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8131 states to 8131 states and 10912 transitions. [2022-11-03 03:44:24,279 INFO L78 Accepts]: Start accepts. Automaton has 8131 states and 10912 transitions. Word has length 524 [2022-11-03 03:44:24,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:24,280 INFO L495 AbstractCegarLoop]: Abstraction has 8131 states and 10912 transitions. [2022-11-03 03:44:24,280 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 03:44:24,280 INFO L276 IsEmpty]: Start isEmpty. Operand 8131 states and 10912 transitions. [2022-11-03 03:44:24,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:24,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:24,292 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 03:44:24,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:24,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:24,507 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:24,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2140727047, now seen corresponding path program 1 times [2022-11-03 03:44:24,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:24,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086101341] [2022-11-03 03:44:24,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:24,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:24,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:24,511 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:24,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-11-03 03:44:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:25,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:44:25,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:26,301 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 03:44:26,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:26,302 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:26,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086101341] [2022-11-03 03:44:26,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086101341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:26,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:26,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:44:26,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097002214] [2022-11-03 03:44:26,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:26,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:44:26,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:26,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:44:26,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:44:26,304 INFO L87 Difference]: Start difference. First operand 8131 states and 10912 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 03:44:26,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:26,571 INFO L93 Difference]: Finished difference Result 8859 states and 11940 transitions. [2022-11-03 03:44:26,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:44:26,572 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 03:44:26,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:26,580 INFO L225 Difference]: With dead ends: 8859 [2022-11-03 03:44:26,581 INFO L226 Difference]: Without dead ends: 8162 [2022-11-03 03:44:26,583 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 03:44:26,584 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 03:44:26,584 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 03:44:26,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2022-11-03 03:44:26,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 8131. [2022-11-03 03:44:26,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8131 states, 8130 states have (on average 1.3420664206642066) internal successors, (10911), 8130 states have internal predecessors, (10911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:26,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8131 states to 8131 states and 10911 transitions. [2022-11-03 03:44:26,696 INFO L78 Accepts]: Start accepts. Automaton has 8131 states and 10911 transitions. Word has length 524 [2022-11-03 03:44:26,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:26,697 INFO L495 AbstractCegarLoop]: Abstraction has 8131 states and 10911 transitions. [2022-11-03 03:44:26,697 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 03:44:26,697 INFO L276 IsEmpty]: Start isEmpty. Operand 8131 states and 10911 transitions. [2022-11-03 03:44:26,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:26,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:26,709 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 03:44:26,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:26,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:26,931 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:26,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1351919369, now seen corresponding path program 1 times [2022-11-03 03:44:26,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:26,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106190169] [2022-11-03 03:44:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:26,934 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:26,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:26,935 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:26,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2022-11-03 03:44:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:28,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:44:28,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:29,286 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 03:44:29,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:29,287 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:29,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106190169] [2022-11-03 03:44:29,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106190169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:29,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:29,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:44:29,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898841065] [2022-11-03 03:44:29,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:29,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:44:29,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:29,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:44:29,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:44:29,289 INFO L87 Difference]: Start difference. First operand 8131 states and 10911 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 03:44:29,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:29,875 INFO L93 Difference]: Finished difference Result 9572 states and 12942 transitions. [2022-11-03 03:44:29,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:44:29,876 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 03:44:29,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:29,882 INFO L225 Difference]: With dead ends: 9572 [2022-11-03 03:44:29,882 INFO L226 Difference]: Without dead ends: 8875 [2022-11-03 03:44:29,884 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 03:44:29,885 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 1821 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 03:44:29,885 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 03:44:29,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8875 states. [2022-11-03 03:44:29,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8875 to 8133. [2022-11-03 03:44:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8133 states, 8132 states have (on average 1.3419822921790459) internal successors, (10913), 8132 states have internal predecessors, (10913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:29,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8133 states to 8133 states and 10913 transitions. [2022-11-03 03:44:29,961 INFO L78 Accepts]: Start accepts. Automaton has 8133 states and 10913 transitions. Word has length 524 [2022-11-03 03:44:29,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:29,961 INFO L495 AbstractCegarLoop]: Abstraction has 8133 states and 10913 transitions. [2022-11-03 03:44:29,961 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 03:44:29,961 INFO L276 IsEmpty]: Start isEmpty. Operand 8133 states and 10913 transitions. [2022-11-03 03:44:29,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:29,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:29,968 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 03:44:29,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (70)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:30,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:30,169 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:30,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:30,169 INFO L85 PathProgramCache]: Analyzing trace with hash 952412939, now seen corresponding path program 1 times [2022-11-03 03:44:30,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:30,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513202257] [2022-11-03 03:44:30,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:30,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:30,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:30,172 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:30,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-03 03:44:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:31,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 03:44:31,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:32,457 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 03:44:32,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:32,458 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:32,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513202257] [2022-11-03 03:44:32,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513202257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:32,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:32,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:44:32,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744881614] [2022-11-03 03:44:32,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:32,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:44:32,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:32,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:44:32,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:44:32,459 INFO L87 Difference]: Start difference. First operand 8133 states and 10913 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 03:44:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:33,415 INFO L93 Difference]: Finished difference Result 10279 states and 13934 transitions. [2022-11-03 03:44:33,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 03:44:33,416 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 03:44:33,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:33,421 INFO L225 Difference]: With dead ends: 10279 [2022-11-03 03:44:33,421 INFO L226 Difference]: Without dead ends: 9580 [2022-11-03 03:44:33,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2022-11-03 03:44:33,423 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, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:33,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3316 Valid, 5612 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 03:44:33,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9580 states. [2022-11-03 03:44:33,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9580 to 8137. [2022-11-03 03:44:33,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 8136 states have (on average 1.341937069813176) internal successors, (10918), 8136 states have internal predecessors, (10918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 10918 transitions. [2022-11-03 03:44:33,493 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 10918 transitions. Word has length 524 [2022-11-03 03:44:33,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:33,493 INFO L495 AbstractCegarLoop]: Abstraction has 8137 states and 10918 transitions. [2022-11-03 03:44:33,493 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 03:44:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 10918 transitions. [2022-11-03 03:44:33,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:33,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:33,500 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 03:44:33,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Ended with exit code 0 [2022-11-03 03:44:33,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:33,700 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:33,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:33,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2046099443, now seen corresponding path program 1 times [2022-11-03 03:44:33,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:33,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511024292] [2022-11-03 03:44:33,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:33,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:33,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:33,704 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:33,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2022-11-03 03:44:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:35,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:44:35,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:35,439 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 03:44:35,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:35,439 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:35,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511024292] [2022-11-03 03:44:35,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511024292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:35,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:35,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:44:35,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055150400] [2022-11-03 03:44:35,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:35,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:44:35,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:35,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:44:35,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:44:35,441 INFO L87 Difference]: Start difference. First operand 8137 states and 10918 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 03:44:35,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:35,696 INFO L93 Difference]: Finished difference Result 8903 states and 11997 transitions. [2022-11-03 03:44:35,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:44:35,696 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 03:44:35,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:35,701 INFO L225 Difference]: With dead ends: 8903 [2022-11-03 03:44:35,701 INFO L226 Difference]: Without dead ends: 8200 [2022-11-03 03:44:35,703 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 03:44:35,704 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 03:44:35,704 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 03:44:35,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8200 states. [2022-11-03 03:44:35,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8200 to 8137. [2022-11-03 03:44:35,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 8136 states have (on average 1.3418141592920354) internal successors, (10917), 8136 states have internal predecessors, (10917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:35,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 10917 transitions. [2022-11-03 03:44:35,779 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 10917 transitions. Word has length 524 [2022-11-03 03:44:35,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:35,779 INFO L495 AbstractCegarLoop]: Abstraction has 8137 states and 10917 transitions. [2022-11-03 03:44:35,779 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 03:44:35,779 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 10917 transitions. [2022-11-03 03:44:35,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:35,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:35,785 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 03:44:35,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (72)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:35,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:35,986 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:35,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:35,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2014462321, now seen corresponding path program 1 times [2022-11-03 03:44:35,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:35,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798779271] [2022-11-03 03:44:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:35,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:35,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:35,990 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:35,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-03 03:44:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:37,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:44:37,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:38,090 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 03:44:38,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:38,091 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:38,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798779271] [2022-11-03 03:44:38,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798779271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:38,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:38,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:44:38,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715089861] [2022-11-03 03:44:38,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:38,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:44:38,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:38,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:44:38,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:44:38,093 INFO L87 Difference]: Start difference. First operand 8137 states and 10917 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 03:44:38,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:38,570 INFO L93 Difference]: Finished difference Result 9608 states and 12985 transitions. [2022-11-03 03:44:38,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:44:38,571 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 03:44:38,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:38,577 INFO L225 Difference]: With dead ends: 9608 [2022-11-03 03:44:38,577 INFO L226 Difference]: Without dead ends: 8905 [2022-11-03 03:44:38,579 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 03:44:38,579 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 03:44:38,580 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 03:44:38,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8905 states. [2022-11-03 03:44:38,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8905 to 8203. [2022-11-03 03:44:38,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8203 states, 8202 states have (on average 1.3423555230431603) internal successors, (11010), 8202 states have internal predecessors, (11010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:38,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8203 states to 8203 states and 11010 transitions. [2022-11-03 03:44:38,687 INFO L78 Accepts]: Start accepts. Automaton has 8203 states and 11010 transitions. Word has length 524 [2022-11-03 03:44:38,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:38,688 INFO L495 AbstractCegarLoop]: Abstraction has 8203 states and 11010 transitions. [2022-11-03 03:44:38,688 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 03:44:38,688 INFO L276 IsEmpty]: Start isEmpty. Operand 8203 states and 11010 transitions. [2022-11-03 03:44:38,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:38,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:38,696 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 03:44:38,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Ended with exit code 0 [2022-11-03 03:44:38,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:38,897 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:38,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:38,897 INFO L85 PathProgramCache]: Analyzing trace with hash -825669747, now seen corresponding path program 1 times [2022-11-03 03:44:38,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:38,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80662959] [2022-11-03 03:44:38,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:38,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:38,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:38,901 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:38,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2022-11-03 03:44:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:40,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:44:40,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:41,266 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 03:44:41,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:41,266 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:41,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80662959] [2022-11-03 03:44:41,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80662959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:41,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:41,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:44:41,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569552224] [2022-11-03 03:44:41,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:41,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:44:41,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:41,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:44:41,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:44:41,268 INFO L87 Difference]: Start difference. First operand 8203 states and 11010 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 03:44:42,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:42,063 INFO L93 Difference]: Finished difference Result 10318 states and 13980 transitions. [2022-11-03 03:44:42,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:44:42,064 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 03:44:42,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:42,070 INFO L225 Difference]: With dead ends: 10318 [2022-11-03 03:44:42,070 INFO L226 Difference]: Without dead ends: 9615 [2022-11-03 03:44:42,072 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 03:44:42,072 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, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:42,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2796 Valid, 4310 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 03:44:42,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9615 states. [2022-11-03 03:44:42,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9615 to 8221. [2022-11-03 03:44:42,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8221 states, 8220 states have (on average 1.3422141119221411) internal successors, (11033), 8220 states have internal predecessors, (11033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:42,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8221 states to 8221 states and 11033 transitions. [2022-11-03 03:44:42,141 INFO L78 Accepts]: Start accepts. Automaton has 8221 states and 11033 transitions. Word has length 524 [2022-11-03 03:44:42,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:42,141 INFO L495 AbstractCegarLoop]: Abstraction has 8221 states and 11033 transitions. [2022-11-03 03:44:42,141 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 03:44:42,141 INFO L276 IsEmpty]: Start isEmpty. Operand 8221 states and 11033 transitions. [2022-11-03 03:44:42,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:42,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:42,150 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 03:44:42,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (74)] Ended with exit code 0 [2022-11-03 03:44:42,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:42,371 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:42,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:42,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1027839759, now seen corresponding path program 1 times [2022-11-03 03:44:42,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:42,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113183244] [2022-11-03 03:44:42,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:42,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:42,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:42,374 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:42,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-11-03 03:44:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:43,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 03:44:43,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:45,237 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 03:44:45,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:45,237 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:45,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113183244] [2022-11-03 03:44:45,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113183244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:45,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:45,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:44:45,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800273007] [2022-11-03 03:44:45,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:45,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:44:45,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:45,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:44:45,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:44:45,239 INFO L87 Difference]: Start difference. First operand 8221 states and 11033 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 03:44:45,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:45,536 INFO L93 Difference]: Finished difference Result 11360 states and 15379 transitions. [2022-11-03 03:44:45,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:44:45,537 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 03:44:45,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:45,543 INFO L225 Difference]: With dead ends: 11360 [2022-11-03 03:44:45,543 INFO L226 Difference]: Without dead ends: 10647 [2022-11-03 03:44:45,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:44:45,546 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 1520 mSDsluCounter, 2370 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:45,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 3136 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 26 Unchecked, 0.2s Time] [2022-11-03 03:44:45,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10647 states. [2022-11-03 03:44:45,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10647 to 9545. [2022-11-03 03:44:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9545 states, 9544 states have (on average 1.3450335289186923) internal successors, (12837), 9544 states have internal predecessors, (12837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:45,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9545 states to 9545 states and 12837 transitions. [2022-11-03 03:44:45,624 INFO L78 Accepts]: Start accepts. Automaton has 9545 states and 12837 transitions. Word has length 524 [2022-11-03 03:44:45,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:45,624 INFO L495 AbstractCegarLoop]: Abstraction has 9545 states and 12837 transitions. [2022-11-03 03:44:45,625 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 03:44:45,625 INFO L276 IsEmpty]: Start isEmpty. Operand 9545 states and 12837 transitions. [2022-11-03 03:44:45,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:45,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:45,634 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 03:44:45,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Ended with exit code 0 [2022-11-03 03:44:45,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:45,851 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:45,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:45,851 INFO L85 PathProgramCache]: Analyzing trace with hash 363847441, now seen corresponding path program 1 times [2022-11-03 03:44:45,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:45,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440255204] [2022-11-03 03:44:45,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:45,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:45,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:45,854 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:45,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2022-11-03 03:44:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:47,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-03 03:44:47,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:50,566 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 03:44:50,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:50,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:50,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440255204] [2022-11-03 03:44:50,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440255204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:50,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:50,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 03:44:50,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193968285] [2022-11-03 03:44:50,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:50,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 03:44:50,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:50,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 03:44:50,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:44:50,569 INFO L87 Difference]: Start difference. First operand 9545 states and 12837 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 03:44:50,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:50,797 INFO L93 Difference]: Finished difference Result 11414 states and 15419 transitions. [2022-11-03 03:44:50,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 03:44:50,798 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 03:44:50,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:50,804 INFO L225 Difference]: With dead ends: 11414 [2022-11-03 03:44:50,804 INFO L226 Difference]: Without dead ends: 10701 [2022-11-03 03:44:50,806 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 03:44:50,807 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 1066 mSDsluCounter, 3564 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 4188 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:50,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 4188 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 86 Unchecked, 0.2s Time] [2022-11-03 03:44:50,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-11-03 03:44:50,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 10207. [2022-11-03 03:44:50,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10207 states, 10206 states have (on average 1.3467568097197726) internal successors, (13745), 10206 states have internal predecessors, (13745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:50,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10207 states to 10207 states and 13745 transitions. [2022-11-03 03:44:50,886 INFO L78 Accepts]: Start accepts. Automaton has 10207 states and 13745 transitions. Word has length 524 [2022-11-03 03:44:50,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:50,887 INFO L495 AbstractCegarLoop]: Abstraction has 10207 states and 13745 transitions. [2022-11-03 03:44:50,887 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 03:44:50,887 INFO L276 IsEmpty]: Start isEmpty. Operand 10207 states and 13745 transitions. [2022-11-03 03:44:50,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:50,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:50,894 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 03:44:50,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (76)] Ended with exit code 0 [2022-11-03 03:44:51,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:51,094 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:51,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:51,095 INFO L85 PathProgramCache]: Analyzing trace with hash -986562669, now seen corresponding path program 1 times [2022-11-03 03:44:51,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:51,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922074279] [2022-11-03 03:44:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:51,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:51,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:51,098 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:51,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-03 03:44:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:52,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 03:44:52,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:53,473 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 03:44:53,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:53,474 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:53,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922074279] [2022-11-03 03:44:53,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922074279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:53,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:53,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:44:53,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004965233] [2022-11-03 03:44:53,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:53,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:44:53,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:53,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:44:53,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:44:53,476 INFO L87 Difference]: Start difference. First operand 10207 states and 13745 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 03:44:54,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:54,422 INFO L93 Difference]: Finished difference Result 12332 states and 16726 transitions. [2022-11-03 03:44:54,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 03:44:54,422 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 03:44:54,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:54,429 INFO L225 Difference]: With dead ends: 12332 [2022-11-03 03:44:54,429 INFO L226 Difference]: Without dead ends: 11619 [2022-11-03 03:44:54,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2022-11-03 03:44:54,432 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 3286 mSDsluCounter, 4765 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:54,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3286 Valid, 5645 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 03:44:54,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11619 states. [2022-11-03 03:44:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11619 to 10221. [2022-11-03 03:44:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10221 states, 10220 states have (on average 1.3465753424657534) internal successors, (13762), 10220 states have internal predecessors, (13762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:54,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10221 states to 10221 states and 13762 transitions. [2022-11-03 03:44:54,510 INFO L78 Accepts]: Start accepts. Automaton has 10221 states and 13762 transitions. Word has length 524 [2022-11-03 03:44:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:54,511 INFO L495 AbstractCegarLoop]: Abstraction has 10221 states and 13762 transitions. [2022-11-03 03:44:54,511 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 03:44:54,511 INFO L276 IsEmpty]: Start isEmpty. Operand 10221 states and 13762 transitions. [2022-11-03 03:44:54,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:54,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:54,518 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 03:44:54,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:54,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:54,718 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:54,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:54,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1449996565, now seen corresponding path program 1 times [2022-11-03 03:44:54,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:54,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178213330] [2022-11-03 03:44:54,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:54,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:54,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:54,722 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:54,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2022-11-03 03:44:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:56,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:44:56,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:56,899 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 03:44:56,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:56,900 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:56,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178213330] [2022-11-03 03:44:56,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178213330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:56,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:56,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:44:56,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643631553] [2022-11-03 03:44:56,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:56,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:44:56,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:56,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:44:56,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:44:56,902 INFO L87 Difference]: Start difference. First operand 10221 states and 13762 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 03:44:57,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:57,128 INFO L93 Difference]: Finished difference Result 17020 states and 22953 transitions. [2022-11-03 03:44:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:44:57,129 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 03:44:57,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:57,139 INFO L225 Difference]: With dead ends: 17020 [2022-11-03 03:44:57,139 INFO L226 Difference]: Without dead ends: 16299 [2022-11-03 03:44:57,142 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 03:44:57,143 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 254 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 2915 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:57,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 2915 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 45 Unchecked, 0.2s Time] [2022-11-03 03:44:57,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16299 states. [2022-11-03 03:44:57,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16299 to 16299. [2022-11-03 03:44:57,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16299 states, 16298 states have (on average 1.3461774450852866) internal successors, (21940), 16298 states have internal predecessors, (21940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:57,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16299 states to 16299 states and 21940 transitions. [2022-11-03 03:44:57,302 INFO L78 Accepts]: Start accepts. Automaton has 16299 states and 21940 transitions. Word has length 524 [2022-11-03 03:44:57,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:57,302 INFO L495 AbstractCegarLoop]: Abstraction has 16299 states and 21940 transitions. [2022-11-03 03:44:57,303 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 03:44:57,303 INFO L276 IsEmpty]: Start isEmpty. Operand 16299 states and 21940 transitions. [2022-11-03 03:44:57,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:57,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:57,314 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 03:44:57,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (78)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:57,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:57,515 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:57,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:57,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1451830931, now seen corresponding path program 1 times [2022-11-03 03:44:57,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:57,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246177113] [2022-11-03 03:44:57,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:57,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:57,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:57,518 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:57,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-03 03:44:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:58,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:44:58,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:59,291 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 03:44:59,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:44:59,292 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:59,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246177113] [2022-11-03 03:44:59,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246177113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:59,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:59,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:44:59,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333360473] [2022-11-03 03:44:59,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:59,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:44:59,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:44:59,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:44:59,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:44:59,294 INFO L87 Difference]: Start difference. First operand 16299 states and 21940 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 03:44:59,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:59,561 INFO L93 Difference]: Finished difference Result 17045 states and 22987 transitions. [2022-11-03 03:44:59,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:44:59,561 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 03:44:59,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:59,571 INFO L225 Difference]: With dead ends: 17045 [2022-11-03 03:44:59,571 INFO L226 Difference]: Without dead ends: 16324 [2022-11-03 03:44:59,574 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 03:44:59,574 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 03:44:59,574 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 03:44:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16324 states. [2022-11-03 03:44:59,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16324 to 16299. [2022-11-03 03:44:59,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16299 states, 16298 states have (on average 1.3461160878635416) internal successors, (21939), 16298 states have internal predecessors, (21939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:44:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16299 states to 16299 states and 21939 transitions. [2022-11-03 03:44:59,694 INFO L78 Accepts]: Start accepts. Automaton has 16299 states and 21939 transitions. Word has length 524 [2022-11-03 03:44:59,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:59,695 INFO L495 AbstractCegarLoop]: Abstraction has 16299 states and 21939 transitions. [2022-11-03 03:44:59,695 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 03:44:59,695 INFO L276 IsEmpty]: Start isEmpty. Operand 16299 states and 21939 transitions. [2022-11-03 03:44:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:44:59,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:59,708 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 03:44:59,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Ended with exit code 0 [2022-11-03 03:44:59,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:44:59,908 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:59,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:59,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1697638805, now seen corresponding path program 1 times [2022-11-03 03:44:59,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:59,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162584539] [2022-11-03 03:44:59,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:59,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:59,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:59,912 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:59,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2022-11-03 03:45:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:01,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:45:01,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:02,291 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 03:45:02,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:45:02,291 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:45:02,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162584539] [2022-11-03 03:45:02,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162584539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:02,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:02,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:45:02,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024742862] [2022-11-03 03:45:02,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:02,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:45:02,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:45:02,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:45:02,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:45:02,293 INFO L87 Difference]: Start difference. First operand 16299 states and 21939 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 03:45:03,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:03,069 INFO L93 Difference]: Finished difference Result 18428 states and 24923 transitions. [2022-11-03 03:45:03,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:45:03,070 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 03:45:03,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:03,080 INFO L225 Difference]: With dead ends: 18428 [2022-11-03 03:45:03,080 INFO L226 Difference]: Without dead ends: 17707 [2022-11-03 03:45:03,084 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 03:45:03,084 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 03:45:03,084 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 03:45:03,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17707 states. [2022-11-03 03:45:03,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17707 to 16313. [2022-11-03 03:45:03,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16313 states, 16312 states have (on average 1.3460642471799902) internal successors, (21957), 16312 states have internal predecessors, (21957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:45:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16313 states to 16313 states and 21957 transitions. [2022-11-03 03:45:03,208 INFO L78 Accepts]: Start accepts. Automaton has 16313 states and 21957 transitions. Word has length 524 [2022-11-03 03:45:03,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:03,208 INFO L495 AbstractCegarLoop]: Abstraction has 16313 states and 21957 transitions. [2022-11-03 03:45:03,208 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 03:45:03,208 INFO L276 IsEmpty]: Start isEmpty. Operand 16313 states and 21957 transitions. [2022-11-03 03:45:03,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:45:03,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:03,220 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 03:45:03,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (80)] Forceful destruction successful, exit code 0 [2022-11-03 03:45:03,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:45:03,420 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:03,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:03,421 INFO L85 PathProgramCache]: Analyzing trace with hash 383808919, now seen corresponding path program 1 times [2022-11-03 03:45:03,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:45:03,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832060973] [2022-11-03 03:45:03,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:03,424 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:45:03,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:45:03,424 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:45:03,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-11-03 03:45:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:04,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 03:45:04,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:05,948 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 03:45:05,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:45:05,948 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:45:05,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832060973] [2022-11-03 03:45:05,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832060973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:05,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:05,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:45:05,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737706438] [2022-11-03 03:45:05,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:05,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:45:05,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:45:05,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:45:05,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:45:05,950 INFO L87 Difference]: Start difference. First operand 16313 states and 21957 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 03:45:06,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:06,954 INFO L93 Difference]: Finished difference Result 18446 states and 24945 transitions. [2022-11-03 03:45:06,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 03:45:06,955 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 03:45:06,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:06,965 INFO L225 Difference]: With dead ends: 18446 [2022-11-03 03:45:06,965 INFO L226 Difference]: Without dead ends: 17715 [2022-11-03 03:45:06,968 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 03:45:06,969 INFO L413 NwaCegarLoop]: 897 mSDtfsCounter, 3254 mSDsluCounter, 4775 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:06,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 5672 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 03:45:06,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17715 states. [2022-11-03 03:45:07,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17715 to 16317. [2022-11-03 03:45:07,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16317 states, 16316 states have (on average 1.3460406962490807) internal successors, (21962), 16316 states have internal predecessors, (21962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:45:07,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16317 states to 16317 states and 21962 transitions. [2022-11-03 03:45:07,091 INFO L78 Accepts]: Start accepts. Automaton has 16317 states and 21962 transitions. Word has length 524 [2022-11-03 03:45:07,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:07,091 INFO L495 AbstractCegarLoop]: Abstraction has 16317 states and 21962 transitions. [2022-11-03 03:45:07,092 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 03:45:07,092 INFO L276 IsEmpty]: Start isEmpty. Operand 16317 states and 21962 transitions. [2022-11-03 03:45:07,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:45:07,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:07,103 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 03:45:07,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Ended with exit code 0 [2022-11-03 03:45:07,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:45:07,304 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:07,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:07,304 INFO L85 PathProgramCache]: Analyzing trace with hash -752135527, now seen corresponding path program 1 times [2022-11-03 03:45:07,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:45:07,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848839194] [2022-11-03 03:45:07,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:07,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:45:07,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:45:07,308 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:45:07,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2022-11-03 03:45:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:08,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:45:08,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:09,113 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 03:45:09,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:45:09,113 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:45:09,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848839194] [2022-11-03 03:45:09,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848839194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:09,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:09,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:45:09,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408764714] [2022-11-03 03:45:09,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:09,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:45:09,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:45:09,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:45:09,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:45:09,116 INFO L87 Difference]: Start difference. First operand 16317 states and 21962 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 03:45:09,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:09,391 INFO L93 Difference]: Finished difference Result 17105 states and 23064 transitions. [2022-11-03 03:45:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:45:09,392 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 03:45:09,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:09,401 INFO L225 Difference]: With dead ends: 17105 [2022-11-03 03:45:09,402 INFO L226 Difference]: Without dead ends: 16370 [2022-11-03 03:45:09,405 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 03:45:09,406 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 03:45:09,406 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 03:45:09,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16370 states. [2022-11-03 03:45:09,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16370 to 16317. [2022-11-03 03:45:09,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16317 states, 16316 states have (on average 1.3459794067173327) internal successors, (21961), 16316 states have internal predecessors, (21961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:45:09,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16317 states to 16317 states and 21961 transitions. [2022-11-03 03:45:09,611 INFO L78 Accepts]: Start accepts. Automaton has 16317 states and 21961 transitions. Word has length 524 [2022-11-03 03:45:09,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:09,611 INFO L495 AbstractCegarLoop]: Abstraction has 16317 states and 21961 transitions. [2022-11-03 03:45:09,611 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 03:45:09,612 INFO L276 IsEmpty]: Start isEmpty. Operand 16317 states and 21961 transitions. [2022-11-03 03:45:09,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:45:09,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:09,622 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 03:45:09,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (82)] Ended with exit code 0 [2022-11-03 03:45:09,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:45:09,824 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:09,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:09,825 INFO L85 PathProgramCache]: Analyzing trace with hash -468149989, now seen corresponding path program 1 times [2022-11-03 03:45:09,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:45:09,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244926094] [2022-11-03 03:45:09,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:09,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:45:09,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:45:09,829 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:45:09,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-03 03:45:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:11,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:45:11,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:11,962 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 03:45:11,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:45:11,962 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:45:11,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244926094] [2022-11-03 03:45:11,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244926094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:11,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:11,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:45:11,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953576872] [2022-11-03 03:45:11,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:11,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:45:11,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:45:11,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:45:11,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:45:11,964 INFO L87 Difference]: Start difference. First operand 16317 states and 21961 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 03:45:12,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:12,461 INFO L93 Difference]: Finished difference Result 17842 states and 24092 transitions. [2022-11-03 03:45:12,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:45:12,462 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 03:45:12,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:12,471 INFO L225 Difference]: With dead ends: 17842 [2022-11-03 03:45:12,471 INFO L226 Difference]: Without dead ends: 17107 [2022-11-03 03:45:12,475 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 03:45:12,475 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 03:45:12,476 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 03:45:12,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17107 states. [2022-11-03 03:45:12,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17107 to 16373. [2022-11-03 03:45:12,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16373 states, 16372 states have (on average 1.3460175910090397) internal successors, (22037), 16372 states have internal predecessors, (22037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:45:12,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16373 states to 16373 states and 22037 transitions. [2022-11-03 03:45:12,599 INFO L78 Accepts]: Start accepts. Automaton has 16373 states and 22037 transitions. Word has length 524 [2022-11-03 03:45:12,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:12,599 INFO L495 AbstractCegarLoop]: Abstraction has 16373 states and 22037 transitions. [2022-11-03 03:45:12,599 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 03:45:12,599 INFO L276 IsEmpty]: Start isEmpty. Operand 16373 states and 22037 transitions. [2022-11-03 03:45:12,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:45:12,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:12,612 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 03:45:12,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Forceful destruction successful, exit code 0 [2022-11-03 03:45:12,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:45:12,812 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:12,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:12,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1256692249, now seen corresponding path program 1 times [2022-11-03 03:45:12,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:45:12,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262769020] [2022-11-03 03:45:12,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:12,815 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:45:12,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:45:12,816 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:45:12,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2022-11-03 03:45:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:14,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:45:14,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:14,645 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 03:45:14,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:45:14,645 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:45:14,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262769020] [2022-11-03 03:45:14,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262769020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:14,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:14,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:45:14,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391853662] [2022-11-03 03:45:14,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:14,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:45:14,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:45:14,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:45:14,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:45:14,647 INFO L87 Difference]: Start difference. First operand 16373 states and 22037 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 03:45:14,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:14,959 INFO L93 Difference]: Finished difference Result 17117 states and 23078 transitions. [2022-11-03 03:45:14,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:45:14,960 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 03:45:14,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:14,970 INFO L225 Difference]: With dead ends: 17117 [2022-11-03 03:45:14,970 INFO L226 Difference]: Without dead ends: 16382 [2022-11-03 03:45:14,973 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 03:45:14,974 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:14,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1358 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:45:14,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16382 states. [2022-11-03 03:45:15,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16382 to 16373. [2022-11-03 03:45:15,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16373 states, 16372 states have (on average 1.3459565111165404) internal successors, (22036), 16372 states have internal predecessors, (22036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:45:15,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16373 states to 16373 states and 22036 transitions. [2022-11-03 03:45:15,097 INFO L78 Accepts]: Start accepts. Automaton has 16373 states and 22036 transitions. Word has length 524 [2022-11-03 03:45:15,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:15,098 INFO L495 AbstractCegarLoop]: Abstraction has 16373 states and 22036 transitions. [2022-11-03 03:45:15,098 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 03:45:15,098 INFO L276 IsEmpty]: Start isEmpty. Operand 16373 states and 22036 transitions. [2022-11-03 03:45:15,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:45:15,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:15,109 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 03:45:15,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (84)] Forceful destruction successful, exit code 0 [2022-11-03 03:45:15,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:45:15,310 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:15,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:15,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2135354469, now seen corresponding path program 1 times [2022-11-03 03:45:15,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:45:15,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359108286] [2022-11-03 03:45:15,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:15,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:45:15,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:45:15,314 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:45:15,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-03 03:45:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:16,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:45:16,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:17,558 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 03:45:17,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:45:18,208 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 03:45:18,208 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:45:18,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359108286] [2022-11-03 03:45:18,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359108286] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:45:18,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [932447555] [2022-11-03 03:45:18,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:18,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:45:18,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:45:18,213 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:45:18,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Waiting until timeout for monitored process [2022-11-03 03:45:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:20,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:45:20,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:20,801 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 03:45:20,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:45:20,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [932447555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:20,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:45:20,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 03:45:20,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440332348] [2022-11-03 03:45:20,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:20,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:45:20,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:45:20,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:45:20,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:45:20,804 INFO L87 Difference]: Start difference. First operand 16373 states and 22036 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 03:45:21,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:21,133 INFO L93 Difference]: Finished difference Result 32560 states and 44083 transitions. [2022-11-03 03:45:21,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:45:21,134 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 03:45:21,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:21,154 INFO L225 Difference]: With dead ends: 32560 [2022-11-03 03:45:21,154 INFO L226 Difference]: Without dead ends: 31825 [2022-11-03 03:45:21,161 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 03:45:21,161 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 03:45:21,161 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 03:45:21,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31825 states. [2022-11-03 03:45:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31825 to 16681. [2022-11-03 03:45:21,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16681 states, 16680 states have (on average 1.346282973621103) internal successors, (22456), 16680 states have internal predecessors, (22456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:45:21,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16681 states to 16681 states and 22456 transitions. [2022-11-03 03:45:21,324 INFO L78 Accepts]: Start accepts. Automaton has 16681 states and 22456 transitions. Word has length 524 [2022-11-03 03:45:21,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:21,324 INFO L495 AbstractCegarLoop]: Abstraction has 16681 states and 22456 transitions. [2022-11-03 03:45:21,325 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 03:45:21,325 INFO L276 IsEmpty]: Start isEmpty. Operand 16681 states and 22456 transitions. [2022-11-03 03:45:21,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:45:21,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:21,337 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 03:45:21,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Ended with exit code 0 [2022-11-03 03:45:21,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Ended with exit code 0 [2022-11-03 03:45:21,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:45:21,738 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:21,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:21,738 INFO L85 PathProgramCache]: Analyzing trace with hash -763547171, now seen corresponding path program 1 times [2022-11-03 03:45:21,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:45:21,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625751705] [2022-11-03 03:45:21,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:21,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:45:21,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:45:21,742 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:45:21,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-03 03:45:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:23,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:45:23,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:23,959 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 03:45:23,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:45:24,581 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 03:45:24,581 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:45:24,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625751705] [2022-11-03 03:45:24,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625751705] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:45:24,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [490705143] [2022-11-03 03:45:24,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:24,581 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:45:24,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:45:24,582 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:45:24,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Waiting until timeout for monitored process [2022-11-03 03:45:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:26,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:45:26,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:27,230 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 03:45:27,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:45:27,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [490705143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:27,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:45:27,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 03:45:27,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270065528] [2022-11-03 03:45:27,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:27,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:45:27,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:45:27,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:45:27,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:45:27,232 INFO L87 Difference]: Start difference. First operand 16681 states and 22456 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 03:45:27,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:27,603 INFO L93 Difference]: Finished difference Result 32420 states and 43859 transitions. [2022-11-03 03:45:27,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:45:27,604 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 03:45:27,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:27,626 INFO L225 Difference]: With dead ends: 32420 [2022-11-03 03:45:27,626 INFO L226 Difference]: Without dead ends: 31377 [2022-11-03 03:45:27,633 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 03:45:27,633 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 03:45:27,634 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 03:45:27,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31377 states. [2022-11-03 03:45:27,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31377 to 16737. [2022-11-03 03:45:27,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16737 states, 16736 states have (on average 1.3465583173996176) internal successors, (22536), 16736 states have internal predecessors, (22536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:45:27,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16737 states to 16737 states and 22536 transitions. [2022-11-03 03:45:27,829 INFO L78 Accepts]: Start accepts. Automaton has 16737 states and 22536 transitions. Word has length 524 [2022-11-03 03:45:27,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:27,829 INFO L495 AbstractCegarLoop]: Abstraction has 16737 states and 22536 transitions. [2022-11-03 03:45:27,829 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 03:45:27,829 INFO L276 IsEmpty]: Start isEmpty. Operand 16737 states and 22536 transitions. [2022-11-03 03:45:27,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:45:27,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:27,842 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 03:45:27,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Forceful destruction successful, exit code 0 [2022-11-03 03:45:28,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Ended with exit code 0 [2022-11-03 03:45:28,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:45:28,243 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:28,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:28,243 INFO L85 PathProgramCache]: Analyzing trace with hash -825586785, now seen corresponding path program 1 times [2022-11-03 03:45:28,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:45:28,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788935592] [2022-11-03 03:45:28,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:28,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:45:28,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:45:28,247 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:45:28,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2022-11-03 03:45:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:29,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:45:29,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:30,473 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 03:45:30,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:45:31,098 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 03:45:31,099 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:45:31,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788935592] [2022-11-03 03:45:31,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788935592] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:45:31,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [901212760] [2022-11-03 03:45:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:31,099 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:45:31,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:45:31,100 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:45:31,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (90)] Waiting until timeout for monitored process [2022-11-03 03:45:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:33,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:45:33,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:33,733 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 03:45:33,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:45:33,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [901212760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:33,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:45:33,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 03:45:33,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355681991] [2022-11-03 03:45:33,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:33,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:45:33,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:45:33,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:45:33,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:45:33,735 INFO L87 Difference]: Start difference. First operand 16737 states and 22536 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 03:45:34,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:34,078 INFO L93 Difference]: Finished difference Result 32064 states and 43349 transitions. [2022-11-03 03:45:34,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:45:34,079 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 03:45:34,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:34,098 INFO L225 Difference]: With dead ends: 32064 [2022-11-03 03:45:34,098 INFO L226 Difference]: Without dead ends: 30965 [2022-11-03 03:45:34,105 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 03:45:34,105 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 03:45:34,105 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 03:45:34,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30965 states. [2022-11-03 03:45:34,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30965 to 16789. [2022-11-03 03:45:34,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16789 states, 16788 states have (on average 1.3467953299976174) internal successors, (22610), 16788 states have internal predecessors, (22610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:45:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16789 states to 16789 states and 22610 transitions. [2022-11-03 03:45:34,270 INFO L78 Accepts]: Start accepts. Automaton has 16789 states and 22610 transitions. Word has length 524 [2022-11-03 03:45:34,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:34,271 INFO L495 AbstractCegarLoop]: Abstraction has 16789 states and 22610 transitions. [2022-11-03 03:45:34,271 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 03:45:34,271 INFO L276 IsEmpty]: Start isEmpty. Operand 16789 states and 22610 transitions. [2022-11-03 03:45:34,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-03 03:45:34,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:34,284 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 03:45:34,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (89)] Ended with exit code 0 [2022-11-03 03:45:34,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (90)] Forceful destruction successful, exit code 0 [2022-11-03 03:45:34,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:45:34,685 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:34,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:34,685 INFO L85 PathProgramCache]: Analyzing trace with hash -16240159, now seen corresponding path program 1 times [2022-11-03 03:45:34,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:45:34,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394359293] [2022-11-03 03:45:34,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:34,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:45:34,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:45:34,689 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:45:34,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94218c02-56bb-4852-8a69-d37bd5dd5261/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2022-11-03 03:45:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:36,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 3919 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:45:36,061 INFO L286 TraceCheckSpWp]: Computing forward predicates...